Q: Why do I need a cap for my truck?  

A:    A 4x4 Cap turns your pickup into a rugged, weatherproof, and lockable cargo zone — built for real outdoor adventure. Crafted from high-grade aluminum, roof capacity 350KG, so you can mount rooftop tents, kayaks, or gear racks with total confidence. Designed to last the lifetime of your truck, a 4x4 Cap keeps your equipment secure, dry, and ready for every journey.   see a contractors' setting from one of my customers here.     

Q: What is the quality difference between your product and from other seller?  

A:   Our products are directly manufactured with high standard quality control.  Please see the difference here between our products and other cheap quality product. 

Q:What is the warranty on the cap?   

A:   Five-year limited warranty, please check details here .

Q:Can I take off and reinstall the cap by myself?

A: Yes, the installation is non-invasive with bolting to the factory prebuilt sockets.  Being between 120kg and 140kg depends on size,it is difficult for one or two persons to install with arms.  A hoist lift system on the garage celling make it doable easily by one person. Many youtube videos can be searched out.   

Q:  I can't find my truck from the products list, do you have the cap for it?

A:  Yes , we can do special design and produce the cap for your truck with measurements.   It will take 3 -4 months to fulfill the order.  Please inquiry us for more details.  

Q:  How to assemble the cap ?

A:   Please see the video here

Q:  How to wire a third brake light on the cap when the brake and the turning signal are using the same bulb?  

A:   Please see the video here

Q:  What are the advantages of an aluminum pickup truck cap over a fiberglass one?

A:   Choosing an aluminum truck cap over a fiberglass one offers several practical advantages, especially if you prioritize utility, budget, and flexibility over aesthetics. 

Key advantages of aluminum include:

  • Lightweight Construction: Aluminum caps typically weigh between 80–150 lbs, whereas fiberglass models often range from 150–300+ lbs. This lower weight improves fuel efficiency and reduces strain on your vehicle’s suspension.
  • Ease of Installation/Removal: Because they are lighter, aluminum caps are much easier for one or two people to install or remove frequently. 
  • Cost-Effectiveness: Aluminum is generally the most affordable option. Entry-level aluminum units can start around $3,000, while fiberglass models usually begin closer to $4000.
  • Corrosion Resistance: Aluminum naturally resists rust and corrosion, making it a superior choice for coastal regions or areas where road salt is used heavily in winter.
  • Impact Resilience: While aluminum may dent, it is less likely to crack or shatter under extreme impact compared to fiberglass, which can be brittle and difficult to repair if structurally damaged.
  • Load-Bearing Capability: Many modern aluminum caps feature reinforced internal frames, allowing them to support significantly higher static and dynamic roof loads for accessories like rooftop tents or heavy gear.
  • Customization for Work: Aluminum caps often offer modular designs with side-access toolboxes and intergrated molley panel that are highly valued by contractors and off-roaders. 

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