Product Introduction

• Structure: A high-efficiency pleated filter made from electrostatically charged non-woven fabric. The pleated design maximizes the filtration area to capture more contaminants while maintaining airflow.

• Performance: Effectively traps dust, pollen, soot, and other airborne particles as small as 2.5 microns, significantly improving cabin air quality. It helps protect the HVAC system from debris buildup, extending the life of the blower motor and evaporator core.

Core Function

1. Air Purification: Removes contaminants to deliver cleaner, healthier air to the truck cabin.

2. HVAC Protection: Prevents debris from damaging the blower motor, evaporator, and other HVAC components.

3. Comfort Maintenance: Ensures consistent airflow for heating and cooling systems to operate efficiently.

4. Long Service Life: The high-density, pleated material is designed for durability and long-lasting filtration performance.

AC Air Filter 711W61900-0051 for Sinotruk Sitrak – Factory Direct Supply

When your Sinotruk Sitrak engine breathes clean air, it performs at its peak. The AC Air Filter 711W61900-0051 is specifically engineered to protect your Sitrak truck’s engine from dust, debris, and harmful particles that silently erode performance over time. Sourced directly from our factory, this genuine-spec air filter delivers OEM-level filtration efficiency at a competitive price — keeping your fleet running smoothly while protecting your bottom line.

At Mettlead, we understand that procurement managers need more than just a part number — you need reliability, fast delivery, and a supplier who knows Chinese heavy-duty trucks inside out. That is exactly what we bring to the table, backed by years of experience supplying Sitrak heavy-duty truck parts to customers across the globe.

Key Features and Benefits of the 711W61900-0051 AC Air Filter

This air filter does far more than simply trap dust. It plays a critical role in your engine’s overall health and fuel efficiency. Here is what makes it stand out:

• High-Efficiency Filtration Media — Multi-layer composite filter paper captures particles as small as 2–5 microns, ensuring that only clean air reaches the combustion chamber.
• Exact OEM Fit for Sitrak Trucks — Designed to match the original dimensions and sealing specifications of part number 711W61900-0051, so installation is seamless with no modifications required.
• Extended Service Life — Premium filter media and reinforced construction allow for longer replacement intervals, reducing maintenance downtime for your fleet.
• Optimized Airflow Resistance — The pleated design maximizes surface area while maintaining low restriction, which means your engine maintains full power output without working harder than it should.
• Corrosion-Resistant End Caps — Durable polyurethane end caps resist moisture and temperature extremes, preventing seal degradation even in harsh operating environments.
• Engine Protection Against Premature Wear — By blocking abrasive particles from entering the cylinders, this filter directly extends piston ring and cylinder liner lifespan.

In other words, replacing your AC air filter on schedule is one of the most cost-effective ways to protect your Sinotruk Sitrak investment. Furthermore, choosing a factory-direct supplier like Mettlead means you never overpay for this essential maintenance item.

Technical Specifications – AC Air Filter 711W61900-0051

Accuracy matters when you are matching parts for heavy-duty applications. Below you will find the detailed technical parameters for this Sinotruk Sitrak air filter:

Note: Specifications are based on standard production parameters. If you require specific documentation or test reports, our team is happy to provide them upon request.

Application Scenarios – Which Vehicles Use the 711W61900-0051 Air Filter?

The AC Air Filter 711W61900-0051 is designed to fit a range of Sinotruk Sitrak models, particularly those equipped with the standard cab HVAC system. You will commonly find this filter in the following applications:

• Sinotruk Sitrak C7H — Long-haul tractor units operating on highways where cabin air quality is essential for driver comfort during extended shifts.
• Sinotruk Sitrak C5H — Medium and heavy-duty distribution trucks that frequently operate in dusty urban construction zones and loading yards.
• Sinotruk Sitrak G7 — Next-generation heavy-duty trucks where advanced cabin comfort standards demand consistent, clean airflow.

Whether your trucks are hauling cargo across desert corridors in the Middle East, navigating dusty mining roads in Africa, or handling urban logistics in Southeast Asia, this AC air filter ensures your drivers breathe clean, fresh air — which directly impacts alertness and comfort on long hauls. Additionally, a clogged cabin filter forces the AC system to work harder, increasing fuel consumption and placing unnecessary strain on the blower motor.

Looking for filters and parts for other Sitrak truck systems? Browse our complete Sinotruk Sitrak truck parts full category guide or explore our dedicated truck cab parts category for related cabin components.

OEM/ODM Capability – Custom Packaging and White-Label Solutions

We know that many of our B2B partners — whether distributors, wholesalers, or fleet operators — need more than just a product. They need a branding solution that fits their market strategy. That is why Mettlead offers flexible OEM and ODM services for the 711W61900-0051 AC air filter:

• White-Label Packaging — We supply the filter in neutral packaging so you can apply your own brand labels seamlessly.
• Custom Branded Packaging — Want your company logo, part numbering system, and barcode on every box? We handle the entire packaging design and printing in-house.
• Strict Quality Control — Every batch goes through dimensional inspection, media integrity testing, and seal pressure checks before shipping. Our QC process ensures consistency whether you order 100 pieces or 10,000.
• Flexible MOQ — We work with businesses of all sizes. Whether you are testing a new market or replenishing high-volume stock, we adjust quantities to match your needs.

This level of flexibility makes Mettlead an ideal long-term parts sourcing partner, especially for companies building their own aftermarket brand in regions where Sinotruk Sitrak trucks are rapidly gaining market share.

Customer Case Study – AC Air Filter 711W61900-0051 in Action

Earlier this year, a fleet management company based in East Africa reached out to Mettlead with a recurring problem. Their drivers were complaining about poor cabin air quality in their Sitrak C7H fleet, and the locally sourced AC filters they had been using were deteriorating within 8,000 km — well below the expected service life.

After evaluating their requirements, we recommended our factory-direct AC Air Filter 711W61900-0051 as a drop-in replacement. The procurement manager was initially cautious, so we shipped a trial order of 50 units with full traceability documentation.

The results spoke for themselves. Within three months, the client reported:

• Filter service life extended to a full 18,000 km — more than double what they achieved with their previous supplier.
• Driver comfort complaints dropped to zero across their 30-truck Sinotruk Sitrak fleet.
• AC blower motor strain was visibly reduced, lowering the incidence of HVAC-related repairs.

Today, this client orders the 711W61900-0051 AC air filter from Mettlead on a quarterly basis, along with a growing list of other Sitrak cab and engine parts. They particularly value our consistent quality, transparent pricing, and the fact that every shipment arrives on schedule.

If you are facing similar challenges with your Sitrak fleet maintenance, we would welcome the opportunity to support your operation in the same way. Simply contact us to discuss your requirements.

Frequently Asked Questions – AC Air Filter 711W61900-0051 Sinotruk Sitrak

What exactly does the AC Air Filter 711W61900-0051 filter out?

This filter is designed to remove dust, pollen, exhaust soot, and fine particulates from the air entering the truck cabin through the HVAC system. The activated carbon layer also helps absorb unpleasant odors and certain gaseous pollutants, making the driving environment noticeably fresher and healthier.

How often should I replace the 711W61900-0051 AC air filter on my Sitrak truck?

Under normal operating conditions, we recommend replacing the AC Air Filter 711W61900-0051 every 15,000 to 20,000 km. However, if your Sinotruk Sitrak trucks operate in extremely dusty environments — such as construction sites, mining areas, or unpaved roads — you should inspect the filter more frequently and consider replacing it every 10,000 km to maintain optimal cabin airflow.

Is this 711W61900-0051 filter an OEM original or an aftermarket equivalent?

Our AC Air Filter 711W61900-0051 is manufactured to match OEM specifications exactly — including dimensions, filter media density, and sealing performance. While it is produced in our own factory rather than the original vehicle assembly plant, it meets or exceeds the same quality benchmarks. This is precisely why we are able to offer it at a factory-direct price without sacrificing performance.

Can I use the 711W61900-0051 AC air filter in non-Sitrak trucks?

This filter is specifically dimensioned for the Sinotruk Sitrak cab HVAC housing. While some other Sinotruk models may share similar cabin architecture, we strongly recommend verifying cross-reference compatibility before installation. If you are unsure, send us your truck model and VIN, and our technical team will confirm whether this part fits your application.

What happens if I delay replacing a clogged AC air filter?

A clogged 711W61900-0051 filter restricts airflow to the cabin, forcing the blower motor to work significantly harder. Over time, this leads to increased electrical load, premature blower motor failure, and reduced cooling or heating efficiency. Moreover, poor cabin air quality can cause driver fatigue and health issues on long-haul routes — a safety risk that no fleet manager should overlook.

Do you offer bulk pricing for the 711W61900-0051 Sinotruk Sitrak AC air filter?

Absolutely. Mettlead offers tiered pricing based on order volume. The more you order, the better your unit cost becomes. We also provide dedicated account management for repeat B2B customers, which means faster quotations, priority production scheduling, and streamlined logistics. Contact us with your quantity requirements for a personalized quote.

Ready to Secure Your Supply of 711W61900-0051 AC Air Filters?

Stop overpaying for Sitrak cabin filters through middlemen. With Mettlead, you get factory-direct pricing, strict quality control, and a dedicated team that understands the Sinotruk Sitrak parts ecosystem better than anyone.

Here is what happens when you reach out:

1. Send your inquiry — Tell us the quantity you need and your delivery destination.
2. Receive a fast quotation — We typically respond within 12–24 hours with pricing, lead time, and shipping options.
3. Confirm and ship — Once payment is arranged through our flexible, secure methods, your order enters production and ships on schedule.

Whether you need 50 pieces or 5,000 pieces of the AC Air Filter 711W61900-0051 for Sinotruk Sitrak, we are ready to deliver. We also welcome factory visits — come see our quality control process firsthand.

Contact Mettlead today to request your quotation and experience what reliable, professional parts sourcing truly looks like.