Products

China Truck and Van Upfits Supplier

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Door Lock Set for Truck

Door Lock Set for Truck

Whole Chain Tech is a seasoned manufacturer of van truck modification accessories. Our integrated door lock set for truck is engineered to secure large cargo compartment doors: featuring a full linkage structure (vertical lock rod + dual top/bottom lock tongues), it enables one-key locking/unlocking for efficient operation.
Aluminum Alloy Trim Profile for Truck

Aluminum Alloy Trim Profile for Truck

Whole Chain Tech is a trusted supplier of premium truck modification accessories. Our Aluminum Alloy Trim Profile for Truck are specifically engineered for van and truck trailers, serving as professional solutions for panel joint edging, sealing, and protection
Underbody Toolbox

Underbody Toolbox

As a rugged, space-saving storage solution from Whole Chain Tech factory, our Underbody Toolbox is crafted from corrosion-resistant aluminum to deliver heavy-duty protection without extra payload.fits seamlessly under the chassis or along the side, freeing up 100% of your truck bed for larger cargo. The diamond-plate exterior and secure locking keep tools safe from the elements and theft.
Lo-Side Toolbox

Lo-Side Toolbox

A classic side-mounted storage solution for pickups, the Lo-Side Toolbox does not occupy the main bed space. As a professional manufacturer, Whole Chain Tech has designed this toolbox to be lightweight and easy to install, perfectly meeting the demand for frequent access to tools and equipment.
Saddle Truck Toolbox

Saddle Truck Toolbox

Whole Chain Tech is a professional manufacturer of truck modification accessories, and our Saddle Truck Toolbox is a purpose-built storage solution designed for pickup trucks.Mounted over the rear axle between the cab and bed.It offers one-touch access and reliable resistance to theft, dust, and moisture.
Gullwing Toolbox

Gullwing Toolbox

As a professional manufacturer with years of experience in truck modification accessories, Whole Chain Tech proudly presents our high-quality Aluminum Gullwing Toolbox.With advanced manufacturing processes including laser cutting, welding and powder coating, we offer customizable options in size, color and logo to meet diverse OEM/ODM needs, delivering reliable storage solutions for both professional and daily use.

What Material are in our upfits?

We use premium heavy-duty materials across our entire upfitting series, including high-strength aluminum, reinforced steel, impact-resistant acrylic, and other industrial-grade composites. All parts are rust-proof and corrosion-resistant—specifically engineered to stand up to road salt, a common challenge for North American vehicles. They are also UV-resistant to prevent fading and degradation from long-term outdoor exposure, ensuring years of reliable heavy-duty use even in harsh conditions.

Is Installation Easy?

Absolutely. Our Truck and van upfits parts feature a bolt-on design that requires no special tools for installation. Detailed, easy-to-follow instructions are included with every product, allowing you to complete the setup quickly and efficiently. Most parts can be installed by a single person, and our design ensures no damage to your vehicle’s original structure—keeping your truck in perfect condition while adding functionality.

How Safe Are They?

1. Superior Overall Stability: Every component—from Pickup Cargo Racks and truckunder liftgates,From small parts to finished products—is engineered for exceptional stability. They are rigorously tested to ensure no shaking, loosening, or tipping, even at high speeds, when bearing heavy loads, or during frequent use, eliminating safety hazards during work or transport.

2. Anti-Slip Protection for Climbing & Loading: All climbing and loading-related parts are equipped with anti-slip safeguards. Our ladder and ramp series feature anti-slip textures or rubber mats on steps to prevent slipping,ensuring secure footing for users and stable movement for cargo, even in rainy or oily conditions.

3. Durable Anti-Break & Anti-Loose Construction: All components are built with heavy-duty, high-strength materials to resist breakage, deformation, and loosening. This includes structural parts designed with reinforced joints, sturdy fasteners, and robust frames to ensure long-term safety and reliability in heavy-duty work scenarios.

4. Lockable or anti-theft options: Many products integrated high-security locks, tamper-resistant hinges, and reinforced locking mechanisms, which keep your valuable tools, sensitive cargo, and custom upgrades secure whether your vehicle is parked at job sites, loading docks, or public parking areas.

How Practical Are They?

Our upfitting solutions are designed to boost your vehicle’s practicality in every way. They provide additional storage space for tools, equipment, and supplies, while also making loading and unloading faster and easier. With smart organization features, you can keep your gear neat and accessible, saving time on the job. Our upfittings maximize your vehicle’s cargo capacity, and are suitable for multi-scenario use—whether you’re working on a construction site, camping, making deliveries, or managing a farm.

Complete Series Availability

We offer a full, comprehensive Truck and van upfits series to meet all your needs, so you can get everything you need in one place: Toolboxes, Ramps & Ladders, Cargo Management Systems, Refrigerated Body Parts, Lighting & Safety Parts, and Custom Body & Trailer Parts. No need to source from multiple suppliers—we have all the upgrades you need to optimize your truck.

Compatible for Combined Use

Truck and Van Upfits

All our Truck and van upfits parts are designed to work seamlessly together, allowing you to create a customized setup that fits your workflow. Pair a toolbox with ramps and ladders for a perfect work-ready configuration, or combine a trailer with a custom body to transform it into a camper or mobile work unit. This compatibility not only enhances functionality but also lets you maximize the value of your investment.

Why Choose Us?

We provide professional Truck and van upfits solutions—built for work, built for North America. Our focus on quality, compatibility, and customer support ensures that you get durable, functional upgrades that enhance your vehicle and fit your lifestyle, backed by the reliability you can trust.


To better serve our North American customers and deliver timely, convenient after-sales support, we have established an office in the United States. This local presence allows us to respond quickly to your inquiries, provide efficient technical assistance, facilitate fast replacement parts delivery, and offer on-site support when needed. Whether you have questions about installation, need replacement parts, or require technical guidance, our U.S.-based team is readily available to support you every step of the way.

Whole Chain Tech is a professional Truck and Van Upfits manufacturer and supplier in China. Welcome to import quality products from our factory here.
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