Diesel exhaust fluid tank

Abstract

A diesel exhaust fluid (DEF) tank for a diesel vehicle. The DEF tank broadly comprises a body having left and right sections and including opposing forward and rearward sidewalls, opposing left and right sidewalls, and opposing lower and upper walls forming a chamber configured to retain diesel exhaust fluid (DEF). The body further includes left and right mounting points. The left mounting point is on the left section and configured to be positioned on a left side of the diesel vehicle. The right mounting point is on the right section and configured to be positioned on a right side of the diesel vehicle for attaching the DEF tank to the diesel vehicle.

Description

BACKGROUND

[0001] Diesel vehicles are often required to have a diesel exhaust fluid (DEF) injection system for reducing pollution of their diesel exhaust. The DEF injection system typically draws DEF from a DEF tank mounted on a side of a diesel vehicle. But mounting a DEF tank on the side of a vehicle creates additional wind resistance and increases the likelihood of impacts with other vehicles and other objects. A sending unit of the DEF injection system draws DEF from the DEF tank and passes it through a filter, which should be changed every few months. Unfortunately, the DEF tank must be dismounted from the diesel vehicle to access the sending unit and filter. This is cumbersome and may increase downtime of the diesel vehicle.SUMMARY OF THE INVENTION

[0002] Embodiments of the present invention solve the above-mentioned problems and provide a distinct advance in the art of DEF tanks. More particularly, the present invention provides a DEF tank and a DEF tank assembly that can be mounted in a space in and / or underneath a chassis of the diesel vehicle thereby minimizing wind resistance, reducing the likelihood of impacts, and providing direct access to the sending unit and filter.

[0003] An embodiment of the present invention is a DEF tank for a diesel vehicle. The DEF tank broadly comprises a body having left and right sections and including opposing forward and rearward sidewalls, opposing left and right sidewalls, and opposing lower and upper walls forming a chamber configured to retain diesel exhaust fluid (DEF). The body further includes left and right mounting points. The left mounting point is on the left section and configured to be positioned on a left side of the diesel vehicle. The right mounting point is on the right section and configured to be positioned on a right side of the diesel vehicle for attaching the DEF tank to the diesel vehicle. In this way, the DEF tank may straddle a centerline of the diesel vehicle.

[0004] Another embodiment is a DEF tank assembly for a diesel vehicle. The DEF tank assembly broadly comprises a DEF tank, a mounting bracket, a left connector, and a right connector. The DEF tank includes a body having left and right sections. The body also includes opposing forward and rearward sidewalls, opposing left and right sidewalls, and opposing lower and upper walls forming a chamber configured to retain diesel exhaust fluid (DEF). The body further includes left and right mounting points. The left mounting point is on the left section and configured to be positioned on a left side of the diesel vehicle. The right mounting point is on the right section and configured to be positioned on a right side of the diesel vehicle for attaching the DEF tank to the diesel vehicle. The mounting bracket is configured to be attached to the diesel vehicle. The left connector is configured to engage the left mounting point, and the right connector is configured to engage the right mounting point to retain the DEF tank on the mounting bracket.

[0005] Yet another embodiment is a DEF tank assembly for a diesel vehicle. The DEF tank assembly broadly comprises a DEF tank, a mounting bracket, left and right straps, an accessory cover, and a sending unit plate. The DEF tank includes a body having left and right sections. The body also includes opposing forward and rearward sidewalls, opposing left and right sidewalls, and opposing lower and upper walls forming a chamber configured to retain diesel exhaust fluid (DEF). The upper wall includes a fill opening, a pump opening, attachment structure near the pump opening, and a U-shaped portion forming a channel for at least partially receiving a driveshaft of the diesel vehicle therein. The body further includes left and right grooves. The left groove is on the left section and configured to be positioned on a left side of the diesel vehicle. The right groove is on the right section and configured to be positioned on a right side of the diesel vehicle for attaching the DEF tank to the diesel vehicle. The mounting bracket is configured to be attached to the diesel vehicle and includes a lower horizontally extending section configured to support the DEF tank, a vertically extending section connected to the lower horizontally extending section, and an upper horizontally extending section opposite the lower horizontally extending section and configured to be attached to the diesel vehicle. The left strap is configured to be retained in the left groove. The right strap is configured to be retained in the right groove to retain the DEF tank on the mounting bracket. The accessory cover is configured to be attached to the rearward sidewall for covering the rearward sidewall. The sending unit plate includes attachment structure for attaching a sending unit of the diesel vehicle thereto and is configured to be attached to the DEF tank via the attachment structure of the upper wall so the sending unit plate encircles the pump opening.

[0006] This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. Other aspects and advantages of the current invention will be apparent from the following detailed description of the embodiments and the accompanying drawing figures.BRIEF DESCRIPTION OF THE DRAWING FIGURES

[0007] Embodiments of the present invention are described in detail below with reference to the attached drawing figures, wherein:

[0008] FIG. 1 is a perspective view of a DEF tank assembly constructed in accordance with an embodiment of the invention;

[0009] FIG. 2 is a perspective view of the DEF tank assembly of FIG. 1;

[0010] FIG. 3 is a perspective view of certain components of the DEF tank assembly of FIG. 1;

[0011] FIG. 4 is a bottom perspective view of a tank of the DEF tank assembly of FIG. 1; and

[0012] FIG. 5 is an elevation view of an accessory cover of the DEF tank assembly of FIG. 1.

[0013] The drawing figures do not limit the current invention to the specific embodiments disclosed and described herein. The drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the invention.DETAILED DESCRIPTION

[0014] Turning to FIGS. 1-3, a DEF tank assembly 100 constructed in accordance with an embodiment of the invention will now be described. The DEF tank assembly 100 may be used with a diesel vehicle 200 (partially seen in FIG. 2) and broadly comprises a DEF tank 102, a mounting bracket 104, left and right connectors 106A,B, an accessory cover 108, and a sending unit plate 110.

[0015] The DEF tank 102 retains DEF for regulated injection into an exhaust system of the diesel vehicle 200. The DEF tank 102 may be mounted in a space 204 in and / or underneath a chassis of a diesel vehicle 200.

[0016] The body 112 may be an injection molded container forming a chamber therein. The body may include opposing forward and rearward sidewalls 114, 116, opposing left and right sidewalls 118, 120, and opposing lower and upper walls 122, 124. The body 112 may also include left and right mounting points 126A,B on left and right sections 128A,B of the body 112, respectively, the importance of which will be described below. In one embodiment, the body 112 may have a front-to-back depth of at least seven inches and a maximum side-to-side width of at least forty-five inches. The sidewalls 118, 120 may narrow to a side-to-side with of approximately thirty-three inches, with another stepdown to a width of approximately twenty-two inches. Other dimensions may be used to maximum space usage for various diesel vehicles.

[0017] The forward sidewall 114 may face a front end of the diesel vehicle 200. In one embodiment, the forward sidewall 114 may abut a vertically extending section of the mounting bracket 104 (described below). A perimeter shape of the forward sidewall 114 may be dictated by the shape and features of the left sidewall 118, the right sidewall 120, the lower wall 122, and the upper wall 124.

[0018] The rearward sidewall 116 may oppose the forward sidewall 114 and may face a rear end of the diesel vehicle 200. The rearward sidewall 116 may be substantially similar to the forward sidewall 114 except the rearward sidewall 116 may include attachment structure 132 for attaching the accessory cover 108 to the body 112. The attachment structure 132 may be or may include fastener holes, mounting bosses, flanges, or the like. A perimeter shape of the rearward sidewall 116 may be dictated by the shape and features of the left sidewall 118, the right sidewall 120, the lower wall 122, and the upper wall 124.

[0019] The left sidewall 118 may extend between the forward sidewall 114 and the rearward sidewall 116 and between the lower wall 122 and the upper wall 124. The left sidewall 118 may be concave in at least one direction (e.g., toward the lower wall 122 and the upper wall 124) to correspond to a curved shape of a left fuel tank of the diesel vehicle 200. This increases the amount of DEF the DEF tank 102 can hold by maximizing usage of the space 204 in which the DEF tank 102 is mounted.

[0020] The right sidewall 120 may extend between the forward sidewall 114 and the rearward sidewall 116 and between the lower wall 122 and the upper wall 124 opposite the left sidewall 118. The right sidewall 120 may be concave in at least one direction (e.g., toward the lower wall 122 and the upper wall 124) to correspond to a curved shape of a right fuel tank of the diesel vehicle 200. This further increases the amount of DEF the DEF tank 102 can hold by maximizing usage of the space 204 in which the DEF tank is mounted.

[0021] As best seen in FIG. 4, the lower wall 122 may extend between the forward sidewall 114 and the rearward sidewall 116 and between the left sidewall 118 and the right sidewall 120 opposite the upper wall 124. The lower wall 122 may be configured to rest on a lower horizontally extending section of the mounting bracket 104 (described below).

[0022] The upper wall 124 may extend between the forward sidewall 114 and the rearward sidewall 116 and between the left sidewall 118 and the right sidewall 120 opposite the lower wall 122. The upper wall 124 may include a refill opening 134, a pump opening 136, and attachment structure 138 for the sending unit plate 110. The upper wall 124 may also form a channel 142. In one embodiment, the upper wall 124 may include a U-shaped portion forming the channel 142.

[0023] The left and right mounting points 126A,B may facilitate securing the body 112 to the mounting bracket 104. The left mounting point 126A may be on the left section 128A of body 112, while the right mounting point 126B may be on the right side of the DEF tank 102 such that the DEF tank 102 straddles a centerline of the diesel vehicle 200. The left and right mounting points 126A,B are substantially similar so only left mounting point 126A will be described in detail. The left mounting point 126A may be or may include a groove, a flange, an opening, a mounting boss, or any other suitable structure. In one embodiment, the left mounting point 126A is a groove in at least one of the forward sidewall 114, the rearward sidewall 116, and the left sidewall 118. In another embodiment, the left mounting point 126A is a groove extending along the forward sidewall 114, the rearward sidewall 116, and the left sidewall 118 so that the groove encircles the body 112. The groove may ensure a connector (described below) is retained against the body 112.

[0024] The attachment structure 132 (of rearward sidewall 116) may be or may include fastener holes or bores, mounting bosses, flanges, interlocking geometry, or the like. For example, the attachment structure 132 is shown as a plurality of bores spaced apart on the rearward sidewall 116 for receiving fasteners therein.

[0025] The refill opening 134 may be positioned on one side of the DEF tank 102. For example, the refill opening 134 is shown positioned on the right section 128B of the DEF tank 102. In one embodiment, the refill opening 134 is positioned on an opposite section of the DEF tank 102 as the pump opening 136. The refill opening 134 may be defined by a threaded wall 144 or similar structure for securing a refill cap 130 thereto. In one embodiment, the threaded wall 144 may have a height of approximately one inch.

[0026] The pump opening 136 may be positioned on one side of the DEF tank 102. For example, the pump opening 136 is shown positioned on the left section 128A of the body 112. In one embodiment, the pump opening 136 is positioned on an opposite section of the DEF tank 102 as the refill opening 134.

[0027] The attachment structure 138 may be or may include fastener holes or bores, mounting bosses, flanges, interlocking geometry, or the like for securing the sending unit plate 110 to the DEF tank 102. For example, the attachment structure 138 is shown as a plurality of holes spaced apart in a circular array around the pump opening 136 for receiving fasteners therein.

[0028] The U-shaped portion 140 may form the channel 142 and may have a concave section and flat sections. Alternatively, the U-shaped portion 140 may be entirely concave. In other embodiments, an orthogonal portion (i.e., having only flat sections) may be used. The U-shaped portion 140 may be between the refill opening 134 and the pump opening 136 near a lateral middle of the DEF tank 102.

[0029] The channel 142 may be formed by the U-shaped portion 140 for accommodating a drive shaft of the diesel vehicle 200. To that end, in one embodiment, the channel 142 may have a width of at least eight inches.

[0030] The mounting bracket 104 supports the DEF tank 102 and may include a lower horizontally extending section 146, a vertically extending section 148, and an upper horizontally extending section 150. The mounting bracket 104 may also include or be securable via attachment plates 152. The mounting bracket 104 may be formed of sheet metal, extruded metal, or any other suitable construction. The mounting bracket 104 may be configured to secure the DEF tank assembly 100 and hence the DEF tank 102 to a let side 202A of the diesel vehicle 200 and a right side 202B of the diesel vehicle 200.

[0031] The lower horizontally extending section 146 extends rearward from a lower end of the vertically extending section 148 for supporting the DEF tank 102. The lower horizontally extending section 146 may include lower attachment structure 154 for attaching the left and right connectors 106A,B to the mounting bracket 104. The lower attachment structure 154 may be or may include fastener holes or bores, mounting bosses, flanges, interlocking geometry, or the like.

[0032] The vertically extending section 148 extends vertically between the lower horizontally extending section 146 and the upper horizontally extending section 150. The vertically extending section 148 may be configured to abut the forward sidewall 114. The vertically extending section 148 may include a U-shaped portion 164 similar to the U-shaped portion 140 of the DEF tank 102. The U-shaped portion 164 may be configured to receive or accommodate at least a portion of the drive shaft of the diesel vehicle 200.

[0033] The upper horizontally extending section 150 extends forward from an upper end of the vertically extending section 148 and may include upper fastener openings 156 for attaching the mounting bracket 104 to a frame or other structure of the diesel vehicle 200 via the attachment plates 152. The upper attachment structure 156 may be or may include fastener holes or bores, mounting bosses, flanges, interlocking geometry, or the like.

[0034] At least one of the lower horizontally extending section 146, the vertically extending section 148, and the upper horizontally extending section 150 may include ribs 162 for strengthening and increasing rigidity of the mounting bracket 104.

[0035] The attachment plates 152 may include fastener holes 158 configured to receive fasteners 160 therethrough for securing the mounting bracket 104 to the diesel vehicle 200. To that end, the attachment plates 152 may be configured to clamp against a frame of the diesel vehicle 200 opposite the upper horizontally extending section 150. The fasteners 160 may be bolts or similar.

[0036] The left and right connectors 106A,B may secure the DEF tank 102 to the mounting bracket 104 and may be straps, cables, wires, chains, or the like. The left and right connectors 106A,B may be positioned in the left and right mounting points 126A,B to ensure the DEF tank 102 is mounted correctly. In one embodiment as shown, the left and right connectors 106A,B are straps configured to encircle the DEF tank and are positioned in grooves encircling the DEF tank 102. The left and right connectors 106A,B may include fasteners 166 for securing the left and right connectors 106A,B to the mounting bracket 104. The fasteners 166 may be clips, hooks, bolts, or the like.

[0037] Turning to FIG. 5, the accessory cover 108 may be attached to the rearward sidewall 116 of the DEF tank 102 and may be a substantially flat plate, a shell, or similar structure. The accessory cover 108 may include attachment structure 168 for securing the accessory cover 108 to the rearward sidewall 116 via fasteners. The accessory cover 108 may have a perimeter shape similar to a perimeter shape of the rearward sidewall 116. The accessory cover 108 may be painted and may allow lights or other vehicle accessories to be mounted thereto.

[0038] The sending unit plate 110 may be mounted on the DEF tank 102 and configured to encircle the pump opening 136. The sending unit plate 110 may include attachment structure 170 for attaching the sending unit plate 110 to the DEF tank 102 and additional attachment structure 172 for attaching a sending unit and associated pump to the sending unit plate 110. The attachment structure 170 may be or may include fastener holes or bores, mounting bosses, flanges, interlocking geometry, or the like and may be “universal” so that the sending unit plate 110 can be replaced with another sending unit plate. In contrast, the attachment structure 172, which also may be or may include fastener holes or bores, mounting bosses, flanges, interlocking geometry, or the like, may be specific geometry corresponding to a particular sending unit model. In this way, if the sending unit is replaced with a different sending unit model, only the sending unit plate 110 and not the entire DEF tank 102 needs to be replaced.

[0039] The above-described invention provides several advantages. For example, the DEF tank 102 may be mounted in the aforementioned space 204 in and / or beneath the chassis of the diesel vehicle 200, which provides protection to the DEF tank and reduces wind resistance (drag) of the diesel vehicle 200. This is possible at least partially due to the shape of the upper wall 124, and in particular the U-shaped portion 140 and channel 142, which allows the DEF tank 102 to be mounted close to and accommodate the drive shaft of the diesel vehicle 200. It is also at least partially due to the shape of the left sidewall 118 and right sidewall 120, which allows the DEF tank 102 to maximize space usage between the fuel tanks of the diesel vehicle 200. The DEF tank 102 also includes left and right sections 128A,B, which straddle the centerline of the diesel vehicle 200. To that end, the mounting bracket 104 and hence the DEF tank assembly 100 and DEF tank 102 may be secured to both left and right sides 202A,B of the diesel vehicle 200.

[0040] The DEF tank 102 also makes the sending unit and pump more accessible. This is particularly useful because a filter of the sending unit must be replaced regularly.Additional Considerations

[0041] Throughout this specification, references to “one embodiment”, “an embodiment”, or “embodiments” mean that the feature or features being referred to are included in at least one embodiment of the technology. Separate references to “one embodiment”, “an embodiment”, or “embodiments” in this description do not necessarily refer to the same embodiment and are also not mutually exclusive unless so stated and / or except as will be readily apparent to those skilled in the art from the description. For example, a feature, structure, act, etc. described in one embodiment may also be included in other embodiments, but is not necessarily included. Thus, the current invention can include a variety of combinations and / or integrations of the embodiments described herein.

[0042] Although the present application sets forth a detailed description of numerous different embodiments, it should be understood that the legal scope of the description is defined by the words of the claims set forth at the end of this patent and equivalents. The detailed description is to be construed as exemplary only and does not describe every possible embodiment since describing every possible embodiment would be impractical. Numerous alternative embodiments may be implemented, using either current technology or technology developed after the filing date of this patent, which would still fall within the scope of the claims.

[0043] Throughout this specification, plural instances may implement components, operations, or structures described as a single instance. Although individual operations of one or more methods are illustrated and described as separate operations, one or more of the individual operations may be performed concurrently, and nothing requires that the operations be performed in the order illustrated. Structures and functionality presented as separate components in example configurations may be implemented as a combined structure or component. Similarly, structures and functionality presented as a single component may be implemented as separate components. These and other variations, modifications, additions, and improvements fall within the scope of the subject matter herein.

[0044] As used herein, the terms “comprises”, “comprising”, “includes”, “including”, “has”, “having”, or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0045] The patent claims at the end of this patent application are not intended to be construed under 35 U.S.C. § 112(f) unless traditional means-plus-function language is expressly recited, such as “means for” or “step for” language being explicitly recited in the claim(s).

[0046] Although the technology has been described with reference to the embodiments illustrated in the attached drawing figures, it is noted that equivalents may be employed and substitutions made herein without departing from the scope of the technology as recited in the claims.

Claims

1. A diesel exhaust fluid (DEF) tank for a diesel vehicle, the DEF tank comprising:a body having left and right sections and including:a forward sidewall configured to face a front end of the diesel vehicle;a rearward sidewall opposite the forward sidewall and configured to face a rear end of the diesel vehicle;a left sidewall;a right sidewall opposite the left sidewall;a lower wall;an upper wall opposite the lower wall,the forward sidewall, rearward sidewall, left sidewall, right sidewall, lower sidewall, and upper sidewall forming a chamber configured to retain DEF therein;a left mounting point on the left section of the body and configured to be positioned on a left side of the diesel vehicle; anda right mounting point on the right section of the body and configured to be positioned on a right side of the diesel vehicle for attaching the DEF tank to the diesel vehicle.

2. The DEF tank of claim 1, the upper wall including a fill opening and a pump opening, the fill opening being on one of the left and right sections, the pump opening being on the other of the left and right sections.

3. The DEF tank of claim 1, the upper wall forming a channel configured to at least partially receive a drive shaft of the diesel vehicle therein.

4. The DEF tank of claim 3, the upper wall including a U-shaped portion forming the channel.

5. The DEF tank of claim 3, the upper wall further including a fill opening and a pump opening, the fill opening being on one of the left and right sections, the pump opening being on the other one of the left and right sections, the channel being between the fill opening and the pump opening.

6. The DEF tank of claim 1, at least one of the left sidewall and the right sidewall being convex for being positioned near a fuel tank of the diesel vehicle.

7. The DEF tank of claim 1, the left mounting point and the right mounting point being grooves in at least one of the forward sidewall, the rearward sidewall, the lower wall, and the upper wall.

8. The DEF tank of claim 7, the grooves extending along the forward sidewall, the rearward sidewall, the lower wall, and the upper wall.

9. The DEF tank of claim 1, the rearward sidewall including attachment structure for attaching an accessory cover to the DEF tank.

10. The DEF tank of claim 1, the upper wall including a pump opening and attachment structure near the pump opening for attaching a sending unit plate to the upper wall such that the sending unit plate encircles the pump opening.

11. A diesel exhaust fluid (DEF) tank assembly for a diesel vehicle, the DEF tank assembly comprising:a DEF tank comprising:a body having left and right sections and including:a forward sidewall configured to face a front end of the diesel vehicle;a rearward sidewall opposite the forward sidewall and configured to face a rear end of the diesel vehicle;a left sidewall;a right sidewall opposite the left sidewall;a lower wall; andan upper wall opposite the lower wall,the forward sidewall, rearward sidewall, left sidewall, right sidewall, lower sidewall, and upper sidewall forming a chamber configured to retain DEF therein;a left mounting point on the left section of the body and configured to be positioned on a left side of the diesel vehicle; anda right mounting point on the right section of the body and configured to be positioned on a right side of the diesel vehicle for attaching the DEF tank to the diesel vehicle;a mounting bracket configured to be attached to the diesel vehicle;a left connector configured to engage the left mounting point; anda right connector configured to engage the right mounting point to retain the DEF tank on the mounting bracket.

12. The DEF tank assembly of claim 11, the left mounting point and the right mounting point being grooves in at least one of the forward sidewall, the rearward sidewall, the lower wall, and the upper wall.

13. The DEF tank assembly of claim 12, the grooves extending along the forward sidewall, the rearward sidewall, the lower wall, and the upper wall.

14. The DEF tank assembly of claim 11, further comprising an accessory cover configured to at least partially cover the rearward sidewall, wherein the rearward sidewall includes attachment structure for attaching the accessory cover to the DEF tank.

15. The DEF tank assembly of claim 14, the accessory cover having a perimeter shape corresponding to a shape of the rearward sidewall.

16. The DEF tank assembly of claim 11, further comprising a sending unit plate including attachment structure for attaching a sending unit of the diesel vehicle thereto, wherein the upper wall includes a pump opening and attachment structure near the pump opening for attaching the sending unit plate to the upper wall such that the sending unit plate encircles the pump opening.

17. The DEF tank assembly of claim 11, the mounting bracket including a lower horizontally extending section configured to support the DEF tank and vertically extending section connected to the lower horizontally extending section.

18. The DEF tank assembly of claim 16, the mounting bracket further including an upper horizontally extending section connected to the vertically extending section opposite the lower horizontally extending section.

19. The DEF tank assembly of claim 11, the upper wall including a U-shaped portion forming a channel configured to at least partially receive a drive shaft of the diesel vehicle therein.

20. A diesel exhaust fluid (DEF) tank assembly for a diesel vehicle, the DEF tank assembly comprising:a DEF tank comprising:a body having left and right sections and including:a forward sidewall configured to face a front end of the diesel vehicle;a rearward sidewall opposite the forward sidewall and configured to face a rear end of the diesel vehicle;a left sidewall;a right sidewall opposite the left sidewall;a lower wall; andan upper wall opposite the lower wall, the upper wall including:a fill opening;a pump opening;attachment structure near the pump opening; anda U-shaped portion forming a channel for at least partially receiving a driveshaft of the diesel vehicle therein,the forward sidewall, rearward sidewall, left sidewall, right sidewall, lower sidewall, and upper sidewall forming a chamber configured to retain DEF therein;a left groove on the left section and configured to be positioned on a left side of the diesel vehicle; anda right groove on the right section and configured to be positioned on a right side of the diesel vehicle for attaching the DEF tank to the diesel vehicle;a mounting bracket for mounting the DEF tank to the diesel vehicle, the mounting bracket including:a lower horizontally extending section configured to support the DEF tank;a vertically extending section connected to the lower horizontally extending section; andan upper horizontally extending section opposite the lower horizontally extending section and configured to be attached to the diesel vehicle;a left strap configured to be retained in the left groove;a right strap configured to be retained in the right groove to retain the DEF tank on the mounting bracket;an accessory cover configured to be attached to the rearward sidewall for covering the rearward sidewall; anda sending unit plate including attachment structure for attaching a sending unit of the diesel vehicle thereto, the sending unit plate being configured to be attached to the DEF tank via the attachment structure of the upper wall so the sending unit plate encircles the pump opening.

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