VEVOR TB17-7B
VEVOR Underbody Truck Box Instruction Manual
Model: TB17-7B
Brand: VEVOR
1. Introduction
This manual provides comprehensive instructions for the VEVOR Underbody Truck Box, a heavy-duty aluminum diamond plate storage solution designed for trucks, vans, and trailers. This product is engineered to expand your vehicle's storage capacity, offering a secure and dry environment for your tools and equipment. It features a robust construction, a lockable T-handle latch, and a waterproof sealing strip to protect contents from the elements. Please read this manual thoroughly before installation and operation to ensure proper use and longevity of your truck box.

Figure 1.1: The VEVOR Underbody Truck Box, showcasing its black diamond plate finish and included keys.
2. Safety Information
Adhere to the following safety guidelines to prevent injury and damage to the product or vehicle:
- Always ensure the truck box is securely mounted to the vehicle to prevent shifting during transit.
- Do not overload the truck box beyond its maximum load capacity (66 lbs / 30 kg).
- When installing the truck box on a vehicle, ensure the vehicle's power is turned off to prevent any short circuits or electrical hazards.
- Keep keys in a safe place and away from children.
- Regularly inspect the mounting hardware and the box itself for any signs of wear, damage, or corrosion.
- Avoid placing corrosive or flammable materials inside the box without proper containment.
3. Package Contents
Verify that all items are present and undamaged upon opening the package:
- 1 x Underbody Tool Box
- 2 x Keys
4. Specifications
| Feature | Detail |
|---|---|
| Model Number | TB17-7B |
| Exterior Dimensions (L x W x H) | 30 x 14 x 16 inch (760 x 355 x 405 mm) |
| Interior Dimensions (L x W x H) | 26.0 x 10.2 x 10.2 inch (660 x 260 x 260 mm) |
| Net Weight | 15.4 lbs (7.0 kg) |
| Material | Aluminum Alloy |
| Color | Black |
| Closure Type | T-Handle Latch |
| Water Resistance Level | Waterproof (with rubber sealing strip) |
| Special Features | Lockable, Rust and Corrosion Resistant, Scratch-resistant Patterns |
| Maximum Load Capacity | 66 lbs (30 kg) |

Figure 4.1: Diagram illustrating the exterior and interior dimensions of the truck box.
5. Setup and Installation
The VEVOR Underbody Truck Box can be installed on various vehicles such as trucks, trailers, and vans. Ensure you measure your vehicle's underbody space before purchasing to confirm compatibility. Brackets for installation are not included and must be purchased separately.
Installation Steps:
- Step 1: Prepare the Box for Drilling
Place the truck box in the desired mounting location. Mark the positions for drilling holes on the top surface of the box where it will connect to the mounting brackets. Ensure these marks align with your chosen bracket system.
- Step 2: Drill Holes on the Vehicle Underbody
Carefully drill corresponding holes at the marked positions on the vehicle's underbody or frame. It is crucial to ensure these holes are accurately aligned with the holes drilled on the truck box for a secure fit. Note: Turn off the vehicle's power before drilling to prevent short circuits.
- Step 3: Mount the Truck Box
Position the truck box against the vehicle's underbody, aligning the drilled holes. Insert and tighten the screws or bolts through the box and into the mounting brackets/vehicle frame. Ensure all fasteners are securely tightened to prevent movement during operation.

Figure 5.1: Visual guide for the drilling installation process.

Figure 5.2: The truck box installed on a vehicle's underbody.
6. Operation
Operating the VEVOR Underbody Truck Box is straightforward, designed for quick access and secure storage.
Opening and Closing:
- To open the box, insert one of the provided keys into the T-handle latch and turn it to unlock. Pull the T-handle outwards to release the latch mechanism, then lower the door.
- To close the box, lift the door until it is fully closed. Push the T-handle inwards until it clicks into place, then turn the key to lock it. Ensure the latch is fully engaged and the box is securely locked before driving.

Figure 6.1: The T-handle latch and key mechanism for secure access.

Figure 6.2: The truck box in an open position, ready for storage.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your VEVOR Underbody Truck Box.
- Cleaning: Clean the exterior and interior of the box periodically with a mild detergent and water. Avoid abrasive cleaners or solvents that could damage the finish. Rinse thoroughly and dry completely to prevent water spots.
- Seal Inspection: Regularly check the rubber sealing strip around the door for any signs of wear, cracks, or damage. A compromised seal can lead to water ingress. Replace the seal if necessary to maintain waterproof integrity.
- Latch Lubrication: Apply a small amount of silicone-based lubricant to the T-handle latch mechanism annually to ensure smooth operation and prevent seizing.
- Hardware Check: Periodically inspect all mounting hardware for tightness. Vibrations during driving can loosen fasteners over time. Tighten any loose bolts or screws to maintain a secure installation.

Figure 7.1: The waterproof rubber sealing strip.
8. Troubleshooting
Refer to the table below for common issues and their solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Water inside the box | Damaged or misaligned rubber seal; improper closure. | Inspect the rubber sealing strip for damage and replace if necessary. Ensure the door is fully closed and the latch is engaged. |
| Latch is stiff or difficult to operate | Lack of lubrication; dirt or debris in the mechanism. | Clean the latch mechanism and apply a silicone-based lubricant. |
| Box feels loose or rattles during driving | Loose mounting hardware. | Check all mounting bolts and screws and tighten them securely. |
| Keys do not turn in the lock | Incorrect key; debris in the lock cylinder; frozen mechanism. | Ensure you are using the correct key. Use a lock de-icer if frozen. If debris is suspected, try a small amount of graphite lubricant. |
9. Warranty and Support
VEVOR products are designed for durability and performance. For specific warranty details, please refer to the warranty information provided with your purchase or visit the official VEVOR website. If you encounter any issues not covered in this troubleshooting guide or require further assistance, please contact VEVOR customer support through their official channels. Provide your model number (TB17-7B) and purchase details for faster service.
You can visit the VEVOR Store for more information and support: VEVOR Official Store
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