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UWS
Always the correct part
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Quality Products
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Always the correct part
We know our products
Quality Products
Free Shipping!
Free Shipping
Warranty: Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Finish: BRIGHT ALUMINUM
Material: Aluminum
Part Type: SIDE MOUNT
UWS underbody tool boxes provide unbeatable storage and security for your items under the bed of your truck or trailer. The box conveniently mounts underneath the bed of a flatbed truck, dump truck or trailer, leaving more space on top of the bed for other cargo. Each box features a corrosion-resistant aluminum construction, heavy-duty cable door supports and a stainless steel locking system -- all to keep your equipment and valuables safe and easily accessible whenever needed. Each UWS underbody tool box is constructed from extra-thick aluminum for increased structural strength. The tub is welded together into a single piece for weather resistance and to easily hold heavy tools and other items. The door features aircraft-grade stainless steel cables, rated to support up to 1,000 lbs., ensuring reliable strength and door operation. The locking mechanism of this underbody truck tool box provides excellent security for your items, featuring a stainless steel, key-operated T-handle. Stainless steel construction supplies the lock with long-lasting corrosion resistance, and the door also has a MicroSeal gasket, blocking moisture, dust and insects from getting inside and damaging your valuables. The door also opens a full 90 degrees for easier access. UWS truck tool boxes are available in multiple sizes to accommodate any storage need. Like all UWS products, each one is proudly assembled right here in the USA for style and long-lasting dependability (NOTE: This product is heavily packaged for parcel shipping).
UWS designs and builds heavy-duty truck tool boxes and storage for tradespeople and truck owners. The line covers crossover and side-mount boxes, chest boxes, underbody boxes, transfer tanks and dog boxes. Every aluminum box is designed, fabricated and welded in Perry, Florida, with construction aimed at job-site abuse, road vibration and daily use.
UWS is a leading manufacturer and designer of truck tool boxes and truck accessories, and a Lippert brand. The company's focus is narrow and deliberate: storage that stands up to being opened and slammed shut dozens of times a day, loaded past what looks reasonable, and left outdoors in whatever weather the job brings. Its customers are electricians, plumbers, contractors, farmers, outdoorsmen and truck owners who treat a pickup as a working tool rather than transport.
The catalog covers the full range of bed storage. Crossover boxes sit across the bed behind the cab in single-lid, gull-wing, secure-lock and low-profile styles, so there is a fit whether the priority is capacity, rear visibility or working under a tonneau. Side-mount boxes mount along the bed rails and keep the bed floor free for cargo, while underbody boxes tuck beneath the frame rails of service bodies and flatbeds.
Beyond the bed, UWS makes portable chest boxes that move between vehicles and the shop, transfer tanks and combination tank-and-toolbox units for crews working away from fuel supply, and insulated, ventilated dog boxes for hunters and handlers.
Manufacturing sits at the centre of the brand's identity. Every UWS aluminum tool box is designed, fabricated and welded in Perry, Florida, by tradespeople with decades of experience, and the company's Rooted in Trades initiative is built around that connection to skilled manual work. Boxes use heavy-gauge aluminum, continuous welds at the seams, weather stripping to seal against rain and dust, and locking systems intended to resist tampering. The practical result is storage that keeps tools dry, organized and where they were left.
Experts available to answer your questions
Call 888-634-9494Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
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The kit includes one underbody tool box and one key. Hardware is not included; you must purchase your own fasteners separately. Contact CURT or your local truck up-fitter for mounting bracket specifications and hardware recommendations.
The installation is rated as Easy. However, the manual recommends contacting your local truck up-fitter or equipment dealer for installation and mounting bracket selection, as the tool box may be mounted on various truck types and chassis styles.
The tool box may be mounted on various truck types and chassis styles. The manual does not specify exclusions or detailed fitment criteria. Contact your local truck up-fitter, equipment dealer, or CURT at 877.287.8634 for confirmation that the product fits your specific vehicle.
Yes. Hardware is not included with the tool box. You must purchase your own fasteners. The manual provides general torque specifications for M6, M8, M10, M12 metric bolts and 1/4", 5/16", 3/8", 7/16", 1/2" SAE bolts, but recommends using the torque specifications provided with the hardware you purchase.
Mounting brackets must be equal to or thicker than 1/4" steel. The underside of the tool box must be supported. For specific bracket part numbers and detailed specifications for your vehicle, contact your local truck up-fitter, equipment dealer, or CURT at 877.287.8634.
The manual recommends contacting your local truck up-fitter or equipment dealer for installation and mounting bracket selection. While the difficulty level is rated as Easy, professional installation is recommended because the tool box may be mounted on various truck types and chassis styles, each requiring different bracket and fastening approaches.
Before drilling, check under your vehicle to ensure the drill location does not puncture, cut or obstruct any brake lines, fuel lines, electrical wires, fuel tanks, or other components. Take precaution that all fasteners near the fuel tank do not create the possibility of fuel tank puncture or other damage during a collision.
The manual states that proper tools will improve the quality of installation and reduce the time required, but does not specify which tools are needed. Contact your local truck up-fitter, equipment dealer, or CURT at 877.287.8634 for a detailed tool list for your specific vehicle and mounting configuration.
The general torque specification for M6 bolts is 3 ft-lbs. However, the manual notes that these are general guidelines. If you purchase hardware separately, use the torque specifications provided with that hardware instead.
The general torque specification for M8 bolts is 7 ft-lbs. However, the manual notes that these are general guidelines. If you purchase hardware separately, use the torque specifications provided with that hardware instead.
The general torque specification for M10 bolts is 16 ft-lbs. However, the manual notes that these are general guidelines. If you purchase hardware separately, use the torque specifications provided with that hardware instead.
The general torque specification for M12 bolts is 28 ft-lbs. However, the manual notes that these are general guidelines. If you purchase hardware separately, use the torque specifications provided with that hardware instead.
The general torque specification for 1/4" bolts is 3 ft-lbs. However, the manual notes that these are general guidelines. If you purchase hardware separately, use the torque specifications provided with that hardware instead.
The general torque specification for 5/16" bolts is 7 ft-lbs. However, the manual notes that these are general guidelines. If you purchase hardware separately, use the torque specifications provided with that hardware instead.
The general torque specification for 3/8" bolts is 16 ft-lbs. However, the manual notes that these are general guidelines. If you purchase hardware separately, use the torque specifications provided with that hardware instead.
The general torque specification for 7/16" bolts is 20 ft-lbs. However, the manual notes that these are general guidelines. If you purchase hardware separately, use the torque specifications provided with that hardware instead.
The general torque specification for 1/2" bolts is 28 ft-lbs. However, the manual notes that these are general guidelines. If you purchase hardware separately, use the torque specifications provided with that hardware instead.
No. Do not use this product for storing or transporting flammables, explosives, hazardous materials or hazardous waste, such as containers of gasoline, solvents, gun powder, dynamite, propane tanks, acetylene tanks and cutting torches. Doing so creates a danger of explosion.
Yes. Never exceed the vehicle manufacturer's recommended capacity. Consult your vehicle's owner manual or manufacturer for the specific weight limit applicable to your truck.
No. The installation must not interfere with factory-installed safety equipment. Before installation, verify that the mounting location and fastener placement do not obstruct or damage any factory safety systems.
Use mild automotive detergent to clean the product. Do not use dish detergent, abrasive cleaners, abrasive pads, wire brushes or other similar products that may damage the finish. For polished, gloss and other smooth finishes, polish may be used to clear small scratches and scuffs. Treat or seal all fasteners and exposed metal in any holes drilled in the vehicle to prevent corrosion.
No. Never modify this product. Use it only for the purposes for which it was designed. If you have questions regarding the installation, operation, use and limits of the product, consult your dealer or contact CURT at 877.287.8634.
The tool box fits various truck types and chassis styles. Contact your local truck up-fitter, equipment dealer, or CURT at 877.287.8634 to confirm fitment for your specific vehicle.
No. You must purchase your own fasteners. Mounting brackets must be equal to or thicker than 1/4" steel.
The manual does not specify whether drilling is required. Contact your local truck up-fitter or equipment dealer for your specific vehicle. If drilling is needed, check under your vehicle first to avoid puncturing brake lines, fuel lines, electrical wires, or fuel tanks.
Do not store flammables, explosives, hazardous materials or hazardous waste such as gasoline, solvents, gun powder, dynamite, propane tanks, acetylene tanks or cutting torches. This creates a danger of explosion.
Use mild automotive detergent. Do not use dish detergent, abrasive cleaners, abrasive pads or wire brushes. For smooth finishes, polish may be used to clear small scratches.
General specifications: M6/1/4" = 3 ft-lbs, M8/5/16" = 7 ft-lbs, M10/3/8" = 16 ft-lbs, M12/7/16" = 28 ft-lbs, 1/2" = 28 ft-lbs. Use the torque specifications provided with your purchased hardware instead of these general guidelines.
| Shank Diameter (C) | Shank Length (B) | Rise (D) | GTW | Chrome Bulk # | Chrome Full Throne # | Chrome Half Throne # | Stainless Bulk # | Stainless Full Throne # | Raw Bulk # |
|---|---|---|---|---|---|---|---|---|---|
| 1-7/8" Ball Diameter (A) | |||||||||
| 3/4" | 1-5/8" | 0" | 2,000 lbs. | 40001 | 40061 | 40161 | -- | -- | -- |
| 3/4" | 2-1/8" | 0" | 2,000 lbs. | 40015 | 40063 | 40163 | -- | -- | 40050 |
| 3/4" | 2-1/8" | 1" | 2,000 lbs. | 40016 | 40071 | 40171 | -- | -- | 40051 |
| 3/4" | 3" | 0" | 2,000 lbs. | 40026 | 40072 | 40172 | -- | -- | 40081 |
| 1" | 2-1/8" | 0" | 3,500 lbs. | 40031 | -- | -- | -- | -- | -- |
| 1" | 3" | 0" | 3,500 lbs. | 40032 | -- | -- | -- | -- | -- |
| 2" Ball Diameter (A) | |||||||||
| 1" | 1-3/4" | 0" | 3,500 lbs. | 40003 | 40064 | 40164 | -- | -- | -- |
| 3/4" | 2-1/8" | 0" | 3,500 lbs. | 40018 | 40065 | 40165 | -- | -- | 40052 |
| 3/4" | 2-1/8" | 1" | 3,500 lbs. | 40019 | 40073 | 40173 | -- | -- | 40082 |
| 1" | 2-1/8" | 0" | 6,000 lbs. | 40001 | 40066 | 40166 | 40053 | -- | 40083 |
| 1" | 2-1/8" | 1" | 6,000 lbs. | 40002 | -- | -- | -- | -- | -- |
| 1-1/4" | 2-5/8" | 0" | 8,000 lbs. | 40034 | -- | -- | -- | -- | -- |
| 1" | 3" | 0" | 12,000 lbs. | 40033 | -- | -- | -- | -- | -- |
| 1-1/4" | 2-5/8" | 0" | 12,000 lbs. | 40038 | -- | -- | -- | -- | -- |
| 1" | 2-1/8" | 0" | 10,000 lbs. | 40039 | -- | -- | -- | -- | 40056 |
| 1-1/4" | 3" | 0" | 10,000 lbs. | 40090 | 40069 | 40190 | -- | -- | -- |
| 2-5/16" Ball Diameter (A) | |||||||||
| 1" | 2-1/8" | 0" | 7,500 lbs. | 40005 | 40067 | 40167 | -- | -- | 40084 |
| 1" | 2-1/4" | 0" | 10,000 lbs. | 40011 | -- | -- | -- | -- | 40042 |
| 1" | 2-1/2" | 0" | 12,000 lbs. | 40037 | -- | -- | -- | -- | -- |
| 1" | 2-1/8" | 1" | 6,000 lbs. | 40012 | 40075 | 40175 | -- | -- | -- |
| 1" | 3-1/4" | 0" | 6,000 lbs. | 40020 | -- | -- | -- | -- | -- |
| 1-1/4" | 2-5/8" | 0" | 15,000 lbs. | 40030 | 40078 | 40178 | 40055 | -- | -- |
| 1" | 3" | 0" | 15,000 lbs. | 40030 | 40078 | 40178 | 40055 | -- | -- |
| 1-1/4" | 2-5/8" | 1" | 15,000 lbs. | 40035 | -- | -- | -- | -- | -- |
| 1-1/4" | 2-5/8" | 0" | 20,000 lbs. | 40036 | -- | -- | -- | -- | 40085 |
| 1" | 2-1/2" | 2-1/4" | 25,000 lbs. | 40038 | -- | -- | -- | -- | 40086 |
| 1" | 2-5/8" | 1" | 12,000 lbs. | 40041 | -- | -- | 40045 | -- | -- |
| 1" | 2-5/8" | 2" | 15,000 lbs. | 40048 | 40089 | -- | -- | -- | 40087 |
| 1-1/4" | 2-5/8" | 1" | 20,000 lbs. | 40008 | 40081 | 40109 | 40109 | -- | -- |
| 1-1/4" | 2-1/2" | 0" | 25,000 lbs. | 40022 | 40076 | 40176 | -- | -- | 40088 |
| 1" | 2-1/2" | 0" | 25,000 lbs. | 40022 | 40076 | 40176 | -- | -- | 40088 |
| 3" Ball Diameter (A) | |||||||||
| 1-1/4" | 3-1/4" | 0" | 30,000 lbs. | -- | -- | -- | -- | -- | 40089 |
| 50mm Ball Diameter (A) | |||||||||
| 3/4" | 50mm | 0" | 1,600 kg. | 40099 | -- | -- | -- | -- | -- |
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