Weather Guard 121-6-04 Aluminum Saddle Box vs Weather Guard 634-52-04 Aluminum Truck Box: Spec Comparison
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
This weather guard model 121 6 04 saddle box vs 634 52 04 aluminum all comparison looks at two rugged storage options. Both boxes use aluminum construction and feature the One Key system for simplified access. The main difference lies in their shape and size. The 121-6-04 is a long, low-profile saddle box designed for the bed sides. The 634-52-04 is a shorter, taller all-purpose chest. You need to decide which footprint fits your truck bed better.
Key differences
| Aspect | Weather Guard 121-6-04 Aluminum Saddle Box | Weather Guard 634-52-04 Aluminum Truck Box |
|---|---|---|
| Length | 72 inches | 58 inches |
| Height | 18 inches | 19 inches |
| Profile Style | Low Profile | All-Purpose |
| Color/Finish | Gunmetal Gray | Textured Matte Black |
| Weight | 76.5 pounds | not listed |
Which one should you choose?
Choose Weather Guard 121-6-04 Aluminum Saddle Box if
- You need maximum length for long tools and prefer a lower profile.
- You want a gunmetal gray finish that blends with truck beds.
- You know the exact weight capacity limits for your specific bed rails.
Choose Weather Guard 634-52-04 Aluminum Truck Box if
- You have a shorter bed or need a box that does not extend as far.
- You prefer the durability of a matte black armor tuf powder coat finish.
- You want a slightly taller box for easier vertical access to items.
Verdict: Choose the 121-6-04 if you prioritize length and a low visual profile. Pick the 634-52-04 if you need a more compact footprint with a durable black finish. Both offer secure aluminum storage and key compatibility.
Size, Profile, and Security Specs
Storage capacity
The Weather Guard 121-6-04 Aluminum Saddle Box offers 11.0 cubic feet of internal volume. This provides ample space for larger tools or gear that requires more room. In contrast, the Weather Guard 634-52-04 Aluminum Truck Box provides 10.0 cubic feet of storage. While the difference is one cubic foot, the 121-6-04 model gives you slightly more capacity. This extra space can be useful if you need to store bulky items. Both boxes are designed for heavy-duty use, but the saddle box has a slight edge in raw volume for your equipment.
Overall dimensions
Length is a major differentiator between these two units. The 121-6-04 Saddle Box measures 72 inches in length, making it a long, low-profile unit that sits on the bed rails. The 634-52-04 Truck Box is shorter at 58 inches in length. Both units share the same width of 20 inches. The 121-6-04 is significantly longer, which affects how it fits in your truck bed. If you need a box that extends further back, the saddle box is the choice. If you prefer a more compact footprint, the truck box is shorter.
Height profile
Height impacts the aerodynamics and clearance of your truck bed. The 121-6-04 Saddle Box stands 18 inches tall. It is described as a full low-profile model. The 634-52-04 Truck Box is slightly taller at 19 inches. This one-inch difference is minor but noticeable when comparing the silhouette of each box. The lower profile of the saddle box may offer slightly better aerodynamics. The truck box is still relatively low but sits a bit higher than the saddle box variant.
Locking system
Security is critical for tool storage. The 121-6-04 Saddle Box features the new 1KEY ULTRALOCK system. This system combines superior break-in protection with the simplicity of using one key for all your boxes. The 634-52-04 Truck Box uses an automotive-grade lock-and-latch system that guards against theft from picking. It also includes a bold red push-button lock that is retractable to indicate the locked state. Both offer robust security, but the 121-6-04 highlights its advanced break-in protection specifically.
Finish and durability
The exterior finish affects how the box ages and resists weather. The 121-6-04 Saddle Box comes in Gunmetal Gray. The specific finish type is not detailed in the provided data. The 634-52-04 Truck Box features a Textured Matte Black ARMOR TUF powder coat finish. This finish is described as ensuring rugged dependability and maintaining a new look for years. The 634-52-04 has a clear advantage here because its specific durable powder coat is explicitly documented, whereas the saddle box finish details are less specified.
Weight
Weight affects the payload capacity of your truck. The 121-6-04 Saddle Box weighs 76.5 pounds. The weight of the 634-52-04 Truck Box is not listed in the provided specifications. Since we only have data for one product, we cannot make a direct comparison of mass. You will need to check the manufacturer's full specs for the truck box weight. Based on available data, only the saddle box weight is confirmed.
Which weather guard box fits you
Need maximum storage volume
The 121-6-04 offers 11.0 cubic feet of space, which is larger than the 634-52-04. Its 72-inch length provides more room for long items. If you carry bulky gear, this full low profile saddle box holds more. The extra volume makes it the better choice for larger tool collections.
Want compact secure storage
The 634-52-04 is shorter at 58 inches, saving bed space. It features a retractable red push-button lock for clear status visibility. The matte black armor tuf finish resists wear. If you prefer a smaller footprint with distinct locking indicators, this truck box suits your needs.
Prioritize low profile design
The 121-6-04 is explicitly labeled a full low profile model. Its 18-inch height is slightly lower than the 634-52-04. This design keeps the center of gravity low. If you want a sleeker look that sits closer to the truck bed, this saddle box is the practical pick.
The products compared
Weather Guard 121-6-04 Aluminum Saddle Box
Best for: secure, low-profile truck bed storage
- Material
- Aluminum
- Profile
- Low Profile
- Dimensions
- 72 × 20 × 18 inches
- Weight
- 76.5 pounds
View on Amazon: Weather Guard 121-6-04 Aluminum Saddle Box Affiliate link
This Weather Guard saddle box offers 11.0 cubic feet of storage in a low-profile aluminum design. Measuring 72 inches long, 20 inches wide, and 18 inches high, it weighs 76.5 pounds. The gunmetal gray finish complements most trucks. It features the 1KEY ULTRALOCK system for simplified key management. You should choose this if you need durable, weather-resistant storage that sits low on your truck bed.
Pros
- 11.0 cubic feet of storage capacity
- Low-profile 18-inch height for aerodynamic storage
- 1KEY ULTRALOCK system for key simplicity
- Durable aluminum construction
Cons
- 72-inch length may not fit all truck beds
- 76.5-pound weight requires careful handling during installation
- Fixed 20-inch width limits side-to-side adjustability
Good fit if
- You need a low-profile storage solution for your truck bed
- You want durable aluminum construction with a 11.0 cu ft capacity
- You prefer a single key system for your truck accessories
Skip if
- You have a short bed that cannot accommodate a 72-inch box
- You prefer a higher profile box for easier access
- You need a lighter storage option under 50 pounds
Verdict: Weather Guard 11 cu ft Low Profile Aluminum Saddle Box is a solid choice for truck owners needing secure, low-profile storage. Its 11.0 cu ft capacity and 1KEY ULTRALOCK system make it ideal for those prioritizing security and space efficiency.
Weather Guard 634-52-04 Aluminum Truck Box
Best for: full-size trucks needing secure storage
- Material
- Aluminum
- Finish
- Black
- Dimensions
- 58 × 20 × 19 inches
View on Amazon: Weather Guard 634-52-04 Aluminum Truck Box Affiliate link
The Weather Guard 634-52-04 is an all-purpose aluminum truck box with a 10.0 cu ft capacity. It measures 58 inches long, 20 inches wide, and 19 inches high. The unit features a textured matte black ARMOR TUF finish for durability. You get a full weather seal and an automotive-grade lock-and-latch system. This model supports key coding for fleet management, making it a secure option for full-size trucks.
Pros
- 10.0 cu ft storage capacity for ample gear
- Full weather seal protects contents from elements
- Automotive-grade lock-and-latch system resists picking
- Single-key coding option for fleet management
- Matte black ARMOR TUF powder coat finish
Cons
- 19-inch height may not fit under low-profile caps
- 58-inch length requires a full-size truck bed
- No internal dividers or organizers listed in specs
Good fit if
- You need high security for expensive tools
- You manage a fleet of trucks
- You want a durable all-purpose box
Skip if
- You drive a short-bed pickup
- You need a low-profile design
- You want internal organization included
Verdict: Weather Guard 634-52-04 Aluminum Truck Box offers robust security and weather resistance for full-size trucks. It fits users who prioritize fleet management and heavy-duty protection over low-profile styling.
Specifications side by side
| Spec | Weather Guard 121-6-04 Aluminum Saddle Box | Weather Guard 634-52-04 Aluminum Truck Box |
|---|---|---|
| Material | Aluminum | Aluminum |
| Profile | Low Profile | not stated |
| Finish | not stated | Black |
| Dimensions | 72 × 20 × 18 inches | 58 × 20 × 19 inches |
| Weight | 76.5 pounds | not stated |
| Color | GunMetalGray | Textured Matte Black |
| Model | 121-6-04 | 634-52-04 |
| Size | not stated | 63.25 in. |
Frequently asked questions
What is the main difference between the Weather Guard 121-6-04 and 634-52-04?
The primary difference is their shape and intended placement. The 121-6-04 is a low-profile saddle box designed to sit over the truck bed rails. The 634-52-04 is a taller truck box meant for standard bed mounting. You should choose based on whether you need a sleeker profile or more vertical clearance.
Which box has a lower profile?
The Weather Guard 121-6-04 features a low-profile design. Its height is 18 inches, making it sit closer to the truck bed rails. The 634-52-04 stands 19 inches tall. If you want to minimize the visual height of your storage, the saddle box is the better option for your truck.
How wide are these aluminum truck boxes?
Both boxes share the same width of 20 inches. This consistent dimension ensures they fit similarly within standard truck bed spaces. You do not need to worry about one being significantly wider than the other. The width remains constant across both the saddle and truck box models from this manufacturer.
Does the 121-6-04 come in different colors?
The data lists the color for the 121-6-04 as GunMetalGray. The 634-52-04 is listed as Textured Matte Black. These are the specific finishes provided for each model. You should select the box based on the available color options that match your vehicle's aesthetic preferences.
Which box is lighter?
The Weather Guard 121-6-04 weighs 76.5 pounds. The weight for the 634-52-04 is not specified in the provided data. You can only confirm the weight for the saddle box. If weight is a critical factor, the 121-6-04 has a known mass that you can account for during installation.
Are both boxes made of aluminum?
Yes, both the 121-6-04 and 634-52-04 are constructed from aluminum. This material choice provides durability and resistance to rust. You get the benefits of a lightweight yet strong storage solution with either model. The aluminum construction is a shared feature across both product lines.
Which box is longer?
The Weather Guard 121-6-04 is longer at 72 inches. The 634-52-04 measures 58 inches in length. If you need to store longer items, the saddle box offers more linear space. The length difference is significant and should guide your choice based on the size of your gear.