Product Introduction

• Structure: A multi-layer composite panel made of high-density PP (polypropylene) plastic with a textured matte black finish. It features integrated mounting recesses for the door inner opener, speaker grille, and control switches, along with reinforced mounting brackets and snap-fit clips for secure attachment to the door metal frame.

• Performance: The rigid PP construction resists deformation and vibration, maintaining its shape and fit over long-term use. The textured surface provides a durable, non-slip finish that resists scratches and wear, while the integrated design ensures a clean, factory appearance.

Core Function

1. Interior Trim & Protection: Covers the metal door frame and internal components, creating a finished, aesthetically pleasing interior while protecting wiring and hardware from dust and damage.

2. Mounting Platform: Provides a secure, integrated base for the door inner opener, speaker, control switches, and assist handle, ensuring all components are properly positioned and accessible.

3. Noise & Vibration Damping: The composite construction absorbs road noise and vibration, improving driving comfort by reducing sound transmission through the door.

Left Door Inner Plate 812W62630-6084 for Sinotruk Sitrak – Factory Direct Supply

When your Sinotruk Sitrak truck needs a reliable cab door restoration, the Left Door Inner Plate 812W62630-6084 is the component that brings everything back together. This OEM-specification inner plate forms the structural backbone of the driver-side door assembly, ensuring proper mounting for window regulators, lock mechanisms, and interior trim panels. At Mettlead, we supply this genuine-quality part directly from our China-based manufacturing network — which means you get competitive pricing without compromising on fitment accuracy or material integrity.

Why Choose the Left Door Inner Plate 812W62630-6084?

The door inner plate is far more than a simple sheet of metal. It serves as the mounting foundation for every functional element within your cab door. Here is why fleet managers and procurement professionals across the globe trust this particular part:

• Precise OEM Fitment: Engineered to match the exact dimensions and mounting points of the original Sinotruk Sitrak door assembly, so installation is seamless and hassle-free.
• High-Strength Stamped Steel: Manufactured from cold-rolled steel with anti-corrosion treatment, this inner plate resists deformation, rust, and fatigue even under demanding operating conditions.
• Complete Functional Integration: Pre-punched holes and reinforcement ribs align perfectly with window regulator rails, door lock actuators, wiring harness clips, and speaker mounts.
• Extended Service Life: The surface coating process — including E-coat primer — protects against moisture ingress typical in tropical and high-humidity environments.
• Reduced Downtime: Because this part is always in stock at Mettlead, you can shorten repair cycles significantly and keep your trucks earning revenue on the road.

In other words, choosing the right door inner plate directly impacts cab rigidity, NVH (Noise, Vibration, Harshness) performance, and driver comfort over the vehicle’s entire lifespan.

Application and Vehicle Compatibility

The Left Door Inner Plate 812W62630-6084 is specifically designed for the Sinotruk Sitrak series of heavy-duty trucks. Whether your fleet runs long-haul logistics across African corridors, mining operations in Southeast Asia, or construction haulage in the Middle East, this component fits the following models and scenarios:

• Sinotruk Sitrak C7H – Long-haul tractor units requiring cab refurbishment after high-mileage service.
• Sinotruk Sitrak C5H – Medium-to-heavy-duty distribution trucks undergoing accident damage repair.
• Sinotruk Sitrak G7 – Next-generation cab platforms where door integrity is critical for safety compliance.

Typical use cases include collision repair, rust damage replacement, fleet-wide cab overhaul programs, and upgrade projects where older doors are replaced with complete inner panel assemblies. Moreover, many workshop operators order this part alongside window regulators and door seal strips to complete a full restoration in a single shipment.

Explore our full range of cab components in the Truck Cab Parts category, or browse all available Sitrak components at our Sitrak Heavy-Duty Parts brand page.

Technical Specifications

Accurate specifications matter when you are sourcing parts across borders. Below is the detailed product data for this Left Door Inner Plate:

For a comprehensive overview of all Sinotruk Sitrak replacement parts organized by system, visit our Sinotruk Sitrak Truck Parts Full Category Guide.

OEM/ODM Capability and Custom Packaging

At Mettlead, we understand that B2B buyers often need more than just a part — they need a supply partner that adapts to their business model. That is exactly what we offer:

• White-Label Packaging: Want to sell under your own brand? We provide neutral or custom-printed packaging with your company logo, part numbers, and barcodes.
• Custom Bundling: Combine the Left Door Inner Plate 812W62630-6084 with related components such as door hinges, exterior panels, or rubber seals into ready-to-install kits.
• Strict Quality Control: Every batch undergoes dimensional inspection, coating thickness testing, and fitment verification before dispatch.
• Flexible Order Quantities: Whether you need a single piece for an urgent repair or 500 units for a fleet overhaul, we accommodate orders of all sizes with consistent pricing.
• Factory Visits Welcome: We encourage procurement teams to visit our supply facilities in China to inspect production lines and build long-term trust.

This flexibility is especially valuable for distributors in Africa, Southeast Asia, and the Middle East who are building local aftermarket brands for Chinese truck parts.

Customer Case Study: Left Door Inner Plate 812W62630-6084 for an East African Fleet

One of our long-standing partners — a commercial vehicle parts distributor based in Tanzania — approached us with an urgent requirement. Their client, a logistics company operating 45 Sinotruk Sitrak C7H trucks, needed Left Door Inner Plate 812W62630-6084 replacements for 12 units that had sustained corrosion damage after three rainy seasons of continuous service.

The challenge was clear: they needed OEM-matching quality at a competitive price, delivered within two weeks to minimize fleet downtime. Our team confirmed stock availability within 24 hours, arranged custom packaging with the distributor’s own logo, and shipped the full order via sea-air combined freight. All 12 Left Door Inner Plates arrived in Dar es Salaam within 11 days, and the workshop reported perfect fitment with zero modification required.

As a result, the distributor placed a standing quarterly order for Sitrak cab body parts — a relationship that continues to grow today. This is what factory-direct sourcing through Mettlead looks like in practice.

Frequently Asked Questions About the Left Door Inner Plate 812W62630-6084

What exactly is the Left Door Inner Plate 812W62630-6084 used for?

The Left Door Inner Plate 812W62630-6084 forms the internal structural frame of the driver-side door on Sinotruk Sitrak trucks. It holds the window regulator mechanism, door lock assembly, wiring harness, and interior trim panel in place. Without a properly fitted inner plate, none of these systems can function correctly.

Is this Left Door Inner Plate an exact match for the original Sitrak part?

Yes. The Left Door Inner Plate 812W62630-6084 that we supply is manufactured to OEM dimensional specifications. All mounting holes, reinforcement ribs, and edge profiles match the factory original, ensuring direct bolt-on installation without cutting, drilling, or modification.

How can I verify that 812W62630-6084 is the correct part number for my truck?

You can confirm the part number by checking your vehicle’s VIN-based parts catalog, the original part label on the existing door inner plate, or by providing us with your truck model and cab type. Our team will cross-reference and confirm compatibility before shipping.

What kind of corrosion protection does this door inner plate have?

The Left Door Inner Plate 812W62630-6084 receives an electrophoretic (E-coat) primer layer that provides excellent resistance to moisture, salt spray, and oxidation. This treatment is particularly important for trucks operating in humid, coastal, or tropical environments where untreated steel deteriorates quickly.

Can I order just one Left Door Inner Plate 812W62630-6084, or is there a minimum order?

Our minimum order quantity is just one piece. Whether you need a single panel for an emergency repair or a bulk batch for fleet maintenance, we fulfill orders of any size with the same quality standards and competitive pricing.

How is the Left Door Inner Plate packaged for international shipping?

Each Left Door Inner Plate 812W62630-6084 is wrapped in protective foam, placed in a reinforced carton box, and secured to prevent bending or surface damage during transit. For bulk shipments, we palletize with corner guards and stretch wrap. Custom branded packaging is also available upon request.

Ready to Order? Get Your Left Door Inner Plate 812W62630-6084 Quote Now

Stop wasting time searching for unreliable suppliers. Mettlead delivers genuine-quality Left Door Inner Plate 812W62630-6084 for Sinotruk Sitrak directly from China’s manufacturing base — at factory pricing, with fast logistics, and backed by professional quality control.

Whether you are replacing a single damaged panel or stocking your warehouse for the season ahead, our team is ready to provide pricing, lead times, and shipping options tailored to your needs.

Take the next step: Contact Us today to request a quotation or ask any technical questions about the Left Door Inner Plate 812W62630-6084. Our parts specialists typically respond within 12 hours.