1. Product Overview
The Weather Guard Model 184-52-04 is a 41-inch Lo-Side Truck Box designed for secure and durable storage of tools and equipment in a truck bed. Constructed from aluminum with a textured matte black ARMOR TUF Powder Coat finish, this truck box offers 3.0 cubic feet of storage capacity and features the 1KEY ULTRALOCK system for enhanced security and convenience.

Image 1: Weather Guard Model 184-52-04 Lo-Side Truck Box, closed view.
Video 1: Overview of Weather Guard Truck Boxes, highlighting features and durability. This video provides a general introduction to the Weather Guard truck box line.
2. Key Features
- 1KEY ULTRALOCK System: Combines superior break-in protection with the convenience of using a single key across multiple boxes.
- Tamper-Resistant Push Button Lock: Designed to protect against unauthorized access.
- Full Weather Seal: Provides protection against environmental elements, keeping contents dry and secure.
- 90-Degree Cover Opening: Allows for easy and unobstructed access to the box's contents.
- Optimized Latching System: Requires less force to close, ensuring easier and more reliable operation.
- Enhanced Tie-Down Buckles: Offers increased clearance for universal or multiple straps, improving cargo securing options.
- Textured Matte Black ARMOR TUF Powder Coat Finish: Ensures long-lasting durability and resistance to wear.

Image 2: Close-up view of the 1KEY ULTRALOCK system, emphasizing its automotive-grade security.

Image 3: Multiple Weather Guard truck boxes installed on a truck, illustrating the convenience of the 1KEY ULTRALOCK system for coding all boxes to a single key.
3. Setup and Installation
3.1 Initial Inspection
Before installation, carefully inspect the truck box for any shipping damage. Ensure all components listed in the packaging are present.
3.2 Mounting the Truck Box
The Weather Guard Lo-Side Truck Box is designed for secure mounting on the side rails of your truck bed. While specific mounting hardware and procedures may vary based on your truck model, general steps include:
- Position the truck box on the truck bed rails in the desired location.
- Utilize the provided mounting clamps or hardware to secure the box to the truck bed rails. Ensure the clamps are tightened evenly to prevent movement.
- Verify that the box is level and does not interfere with the truck's operation or other accessories.

Image 4: Detail of the enhanced tie-down buckles, showing their design for securing cargo.
3.3 Coding the 1KEY ULTRALOCK
The 1KEY ULTRALOCK system allows you to code multiple Weather Guard boxes to operate with a single key. Follow these steps to code your truck box lock:
- Carefully remove the keys and the instruction card from the lock.
- Read all instructions on the card before proceeding. Locate the key code on the side of the key.
- Locate and remove the protective label from the lock cylinder.
- Insert the key fully into the lock cylinder and turn it 3/4 turn clockwise. This action permanently codes the lock to that key. Once coded, a lock cannot be changed.
- To test the lock, insert the key and turn it 1/4 turn clockwise to unlock. Push the button to lock.
- Tip: Lock and unlock the box approximately 5 times to ensure proper setup and smooth operation.
- Repeat this process for both locks if your box has two, or for any other Weather Guard boxes you wish to code to the same key.
Video 2: Detailed instructions on how to code your Weather Guard 1KEY ULTRALOCK. This video demonstrates the step-by-step process for setting up the lock with your key.
4. Operating Instructions
4.1 Locking and Unlocking
The 1KEY ULTRALOCK system provides a visual indicator for the lock status:
- Locked: When the push button is depressed (pushed in), the box is locked.
- Unlocked: When the push button is popped out, the box is unlocked.
To unlock, insert your coded key and turn it 1/4 turn counter-clockwise. The button will pop out. To lock, simply push the button in. The key is only needed to unlock the box.
4.2 Opening and Closing the Lid
The truck box features a 90-degree cover opening for full access. To open, ensure the lock is in the unlocked position, then lift the lid. To close, gently lower the lid until the latching system engages. The optimized latching system requires minimal force for closure.

Image 5: Interior view of the truck box with the lid open, showing ample storage space and internal features.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your Weather Guard truck box.
- Cleaning: Clean the exterior and interior of the box periodically with mild soap and water. Avoid abrasive cleaners that could damage the ARMOR TUF finish.
- Weather Seal Inspection: Regularly check the full weather seal around the lid for any signs of wear, cracks, or damage. A damaged seal can compromise the weather-tight feature. Replace if necessary.
- Lock Lubrication: Apply a small amount of graphite lubricant or a silicone-based spray to the lock cylinder and latching mechanism annually to ensure smooth operation and prevent seizing.
- Hinge Check: Inspect hinges for proper function and tightness. Tighten any loose fasteners as needed.
6. Troubleshooting
6.1 Lock Not Engaging/Disengaging
- Check Key Coding: Ensure the key used is the one coded to the lock. Remember, once coded, a lock cannot be changed to a different key.
- Lubrication: Apply lubricant to the lock cylinder and push-button mechanism.
- Obstruction: Check for any debris or foreign objects obstructing the lock or latching mechanism.
6.2 Lid Not Closing Properly
- Obstruction: Ensure no items inside the box are preventing the lid from closing completely.
- Latching Mechanism: Inspect the latching system for any damage or misalignment.
- Mounting: Verify that the box is securely mounted and not warped, which could affect lid alignment.
6.3 Water Leakage
- Weather Seal: Inspect the full weather seal for damage or improper seating. Replace the seal if it is compromised.
- Drain Plugs: Ensure any drain plugs are properly installed and sealed.
7. Specifications

Image 6: Dimensional drawing of the Weather Guard Model 184-52-04 Lo-Side Truck Box.
| Feature | Detail |
|---|---|
| Model Number | 184-52-04 |
| Brand | Weather Guard |
| Material | Aluminum |
| Color | Textured Matte Black |
| Style | Lo-Side Box |
| Product Dimensions (L x W x H) | 41"L x 17"W x 13"H |
| Capacity | 3.0 Cubic Feet |
| Item Weight | 37 Pounds |
| Water Resistance Level | Water Resistant (Weathertight) |
| Opening Mechanism | Single Lid |
| UPC | 783965071390 |
8. Warranty Information
The Weather Guard Model 184-52-04 Lo-Side Truck Box is backed by a Limited Lifetime Warranty. This warranty covers defects in materials and workmanship under normal use and service. For specific terms, conditions, and claim procedures, please refer to the official warranty documentation included with your product or visit the Weather Guard website.
9. Customer Support
For further assistance, technical support, or to inquire about replacement parts, please contact Weather Guard customer service. Contact information can typically be found on the manufacturer's website or in the product packaging.
Website: www.weatherguard.com
