Product Introduction

• Structure: An integrated dual-blower assembly featuring two high-performance fan motors, heavy-duty plastic fan shrouds, and sealed electrical connectors. It’s engineered with a balanced design for low noise and vibration.

• Performance: Delivers powerful, consistent airflow to the cabin for heating, cooling, and defrosting. The dual-motor design ensures redundancy and high airflow capacity, even in extreme temperature conditions.

Core Function

1. Airflow Generation: The heart of the HVAC system, it pushes air through the evaporator and heater cores into the cabin.

2. Dual Motor Redundancy: Two independent motors ensure continued operation even if one motor fails, maintaining critical defrosting and ventilation functions.

3. Low Noise Operation: Balanced fan blades and optimized housing reduce noise and vibration for driver comfort.

4. Durability: Heavy-duty construction and sealed connectors resist dust, moisture, and vibration for long service life.

Blower Assy 811W61942-0003 for Sinotruk Sitrak – OEM Cab Heater Blower Motor Assembly

When your Sitrak truck’s cab heating and ventilation system needs a reliable replacement, the Blower Assy 811W61942-0003 delivers OEM-grade performance at a factory-direct price. Designed specifically for Sinotruk Sitrak heavy-duty trucks, this blower motor assembly ensures consistent airflow, quiet operation, and long-lasting durability—even in the harshest operating conditions. Whether you’re managing a fleet in Africa, the Middle East, or Southeast Asia, this genuine-spec component keeps your drivers comfortable and your trucks on the road.

At Mettlead, we specialize in supplying authentic-quality Chinese brand truck parts directly from the source. As a result, you get competitive pricing without compromising on fitment or reliability. Ready to source this part? Contact us today for a fast quotation.

Key Features and Benefits of Blower Assy 811W61942-0003

Choosing the right blower assembly isn’t just about replacing a broken part—it’s about ensuring your entire HVAC system performs at its best. Here’s why this particular blower assembly stands out:

• Exact OEM Specification: Manufactured to match the original Sinotruk Sitrak part number 811W61942-0003, so installation is seamless with no modifications required.
• High-Efficiency Motor: The integrated motor delivers strong, consistent airflow across all speed settings, ensuring effective cabin heating and defrosting even at idle.
• Low Noise Operation: Precision-balanced fan blades minimize vibration and cabin noise, contributing to a more comfortable driving environment over long hauls.
• Durable Construction: Heat-resistant housing and corrosion-proof materials extend the service life significantly, reducing replacement frequency and lowering total cost of ownership.
• Plug-and-Play Installation: The wiring harness connector and mounting points align perfectly with Sitrak cab configurations, which means your technicians can complete the swap quickly.
• Strict Quality Control: Every unit undergoes factory testing for airflow rate, current draw, and noise level before shipment—giving you peace of mind with every order.

In other words, this blower assembly combines reliability, efficiency, and affordability in one package. Furthermore, because it’s sourced directly from our factory partner network, you bypass unnecessary middlemen and get better margins on every unit you purchase.

Technical Specifications – Blower Assy 811W61942-0003 Sinotruk Sitrak

Below you’ll find the detailed specifications for this blower motor assembly. These parameters ensure you’re ordering the correct part for your specific application:

If you need cross-reference numbers or compatibility confirmation for a specific Sitrak model year, don’t hesitate to reach out to our parts specialists.

Application and Vehicle Fitment – Which Trucks Use This Blower Assembly?

The Blower Assy 811W61942-0003 is engineered specifically for the Sinotruk Sitrak heavy-duty truck series. More specifically, it fits the following cab and model configurations:

• Sitrak C7H – Long-haul tractor units with sleeper cabs, widely used on intercity logistics routes across Africa, Central Asia, and the Middle East.
• Sitrak C5H – Medium-to-heavy-duty distribution trucks commonly deployed for regional freight and construction material transport.
• Sitrak T7H – High-horsepower tractor heads popular in mining logistics and heavy-load long-distance transport scenarios.

In a typical real-world scenario, consider a logistics fleet operating Sitrak C7H tractors on desert highway routes. Drivers depend on effective cab heating during cold desert nights and powerful defrosting during early morning departures. When the original blower motor degrades—showing symptoms like reduced airflow, unusual squealing noises, or intermittent operation—replacing it promptly with this OEM-spec unit restores full climate control functionality and keeps your fleet running on schedule.

Additionally, this blower assembly forms part of the broader Truck Cab Parts category, meaning you can source complementary components like resistors, HVAC control panels, and ducting from the same supplier.

For a complete overview of all available Sitrak components, visit our Sitrak Heavy-Duty Parts brand page. You can also explore our Sinotruk Sitrak Truck Parts Full Category Guide for a comprehensive breakdown of every system and sub-assembly we supply.

OEM/ODM Capability and Custom Packaging

As a procurement manager, you need more than just the right part—you need a supply partner who adapts to your business requirements. Here’s what Mettlead offers beyond the standard product:

• White-Label Packaging: We supply the Blower Assy 811W61942-0003 in neutral packaging, allowing you to sell under your own brand without revealing the origin source to your end customers.
• Custom Packaging: Need your company logo, part label, and barcode on every box? We accommodate custom packaging requests for bulk orders, helping you maintain brand consistency across your inventory.
• Flexible MOQ: Whether you need a single sample for testing or a container-load for stock replenishment, we structure orders to match your cash flow and warehouse capacity.
• Cross-Brand Bundling: Ordering Sitrak blower assemblies alongside HOWO, Shacman, or Weichai components? We consolidate everything into a single shipment to reduce your logistics costs.

In short, our factory-direct model gives you control over pricing, branding, and delivery timelines. That flexibility is exactly what makes Mettlead a preferred partner for distributors and fleet operators across 50+ countries.

Customer Case Study – Blower Assy 811W61942-0003 Bulk Order for East African Fleet

One of our long-standing clients, a heavy-duty truck parts distributor based in Tanzania, manages aftermarket supply for over 200 Sitrak C7H units operating on the Dar es Salaam–Dodoma corridor. During the dry season, fine dust particles accelerate wear on cab HVAC components. Consequently, the blower motor assembly becomes one of their highest-demand replacement parts.

After experiencing quality inconsistencies from local suppliers, the client’s procurement manager reached out to Mettlead for a reliable source of Blower Assy 811W61942-0003 Sinotruk Sitrak units. We provided:

1. A sample unit for bench testing and fitment verification on their reference C7H cab.
2. A competitive bulk quotation for 150 units with white-label packaging bearing their company branding.
3. Consolidated shipping with other Sitrak cab parts—including wiper motors and door lock assemblies—to minimize freight costs.

The result? A 30% reduction in per-unit cost compared to their previous supplier, zero fitment issues reported across all 150 installations, and a re-order placed within just four months. This partnership now extends across their full Sitrak parts inventory.

If you’re facing a similar situation—inconsistent quality, slow lead times, or inflated pricing—we invite you to contact our team and discover the difference that factory-direct sourcing makes.

Frequently Asked Questions – Blower Assy 811W61942-0003

What vehicles is the Blower Assy 811W61942-0003 compatible with?

This blower motor assembly is designed specifically for Sinotruk Sitrak truck models, including the C7H, C5H, and T7H series. It matches the original cab HVAC blower position and connector configuration. If you’re unsure about fitment for your specific model year, our team can cross-reference it for you.

Is this blower assembly an OEM original part or an aftermarket replacement?

It is manufactured to OEM specifications with identical dimensions, airflow performance, and connector type as the factory-installed unit. While it is sourced from our quality-controlled supplier network rather than the vehicle assembly line, it meets or exceeds original performance standards. As a result, you get OEM-level quality at a significantly lower cost.

How can I tell if my Sitrak truck’s blower motor needs replacement?

Common symptoms of a failing blower assembly include noticeably reduced airflow from the dashboard vents, unusual squealing or grinding noises when the fan is running, intermittent operation (fan works on some speeds but not others), or complete failure of the heating/defrost system. If your drivers report any of these issues, the blower motor assembly is the most likely culprit.

Does the Blower Assy 811W61942-0003 come with the fan wheel included?

Yes. This is a complete blower assembly, meaning it includes the DC motor, squirrel-cage fan wheel, and housing as a single integrated unit. You do not need to purchase the motor and fan separately.

What is the operating voltage of this blower motor?

The blower assembly operates on a standard 24V DC system, which is the standard electrical configuration for Sinotruk Sitrak heavy-duty trucks. It is not compatible with 12V systems without modification.

Can I order a sample before committing to a bulk purchase?

Absolutely. We encourage procurement managers to order a single sample for bench testing and physical fitment verification before placing larger orders. This approach eliminates risk and builds confidence in the product quality. Simply contact us to request a sample quotation.

How is the blower assembly packaged for international shipping?

Each unit is individually boxed with foam inserts to prevent damage during transit. For bulk orders, units are palletized and wrapped for secure container shipping. White-label and custom packaging options are also available upon request.

Get Your Quotation – Blower Assy 811W61942-0003 Sinotruk Sitrak

You’ve done the research. You know the part number. Now it’s time to get pricing that works for your bottom line. Whether you need 1 sample or 1,000 units, Mettlead delivers:

• Factory-direct pricing – No middlemen, better margins for your business.
• Fast lead times – Most standard parts ship within 3–7 working days.
• Flexible payment options – T/T, Western Union, and other secure methods accepted.
• Expert support – Our parts specialists confirm fitment and cross-reference numbers before you order.

Take the next step: Contact Us Now to request your quotation for Blower Assy 811W61942-0003. Share your target quantity, preferred packaging, and destination port—we’ll respond within 24 hours with a detailed offer.

Explore more Sitrak cab components in our Truck Cab Parts catalog, or browse the full Sitrak Heavy-Duty Parts range to consolidate your order and save on shipping.