Product Introduction

• Structure: An electronically controlled viscous clutch with an aluminum housing, a precision-engineered bimetallic sensing element, and an integrated solenoid valve. It connects the engine’s fan drive to the cooling fan, with a mounting flange for direct installation.

• Performance: The electronic control unit (ECU) adjusts clutch engagement based on real-time coolant temperature, engine load, and ambient conditions. This allows the fan to operate at variable speeds, reducing unnecessary power draw and improving fuel economy while ensuring reliable cooling.

Core Function

1. Dynamic Speed Control: Adjusts fan speed automatically to maintain optimal engine operating temperatures, preventing both overheating and unnecessary cooling.

2. Fuel Efficiency Improvement: Reduces parasitic power loss by disengaging the fan when maximum cooling is not required, lowering fuel consumption and engine wear.

3. Noise Reduction: The variable-speed operation minimizes fan noise during low-load or cold-start conditions, improving operator comfort.

Fan Clutch 1001187075 WEICHAI – OEM-Grade Engine Cooling for Heavy-Duty Trucks

When your WEICHAI engine runs hot under heavy loads, the fan clutch is the silent guardian that keeps temperatures in check. The Fan Clutch 1001187075 WEICHAI delivers precise, thermostatic engagement to regulate airflow across the radiator — reducing parasitic power loss when cooling isn’t needed and stepping in decisively when it is. Sourced directly from METTLEAD Truck Parts’ factory supply chain, this unit meets OEM dimensional and performance benchmarks at a procurement-friendly price point.

Key Functions and Buyer Benefits

Intelligent Thermal Regulation

This fan clutch responds to engine compartment temperature via a bimetallic thermal sensor. It engages the cooling fan only when coolant temperatures approach critical thresholds, then disengages smoothly once temperatures normalize. The result: your engine breathes efficiently without wasting horsepower driving the fan at full speed continuously.

Reduced Fuel Consumption

A properly functioning fan clutch can reduce fan-related parasitic drag by up to 90% during highway cruising. For fleet operators running WEICHAI-powered trucks across long hauls, this translates directly into measurable fuel savings over thousands of kilometers.

Extended Component Lifespan

By preventing constant full-speed fan operation, the 1001187075 fan clutch reduces mechanical stress on the water pump bearing, fan belt, and fan blades. It protects the broader cooling system while protecting itself through precision-machined internal components and high-quality silicone fluid fill.

Direct OEM Replacement

Engineered to match the original WEICHAI specification for part number 1001187075, this fan clutch drops into place without modification. Bolt patterns, shaft dimensions, and engagement characteristics align with factory standards — eliminating guesswork during installation.

Technical Specifications

Application Scenarios – Vehicle Fitment

The Fan Clutch 1001187075 is designed to serve WEICHAI WP-series engines commonly installed in the following heavy-duty platforms:

• SINOTRUK HOWO T7H / A7 – Long-haul logistics trucks equipped with WEICHAI WP12/WP13 engines operating in high-ambient-temperature corridors across Africa, the Middle East, and Southeast Asia.
• SHACMAN X3000 / F3000 – Mining and construction tippers running under sustained high-load conditions where consistent cooling is non-negotiable.
• FOTON Auman GTL – Regional distribution trucks requiring reliable thermal management during frequent stop-and-go cycles.
• FAW J6P / J7 – Premium highway tractors where fuel efficiency and engine longevity are top procurement priorities.

Whether your fleet operates in the scorching heat of the Arabian Peninsula or the dusty roads of sub-Saharan Africa, this fan clutch keeps WEICHAI engines within optimal operating temperature — consistently and reliably.

OEM/ODM Capability

White-Label and Custom Packaging

METTLEAD supports distributors and wholesalers who need to build their own brand presence. We offer white-label packaging with your logo, part numbering system, and branding applied directly to the box and product label. Minimum order quantities for custom packaging are flexible — talk to our team about your volume.

Strict Quality Control

Every Fan Clutch 1001187075 passes through a multi-stage inspection process:

1. Raw material verification (aluminum alloy composition, steel hardness)
2. Dimensional inspection against OEM drawings
3. Silicone oil fill volume and viscosity check
4. Thermal engagement/disengagement cycle testing
5. Final visual and packaging inspection before dispatch

We maintain batch traceability so any unit can be tracked back to its production run — giving your procurement team confidence in consistency across repeat orders.

Factory-Direct Pricing

By sourcing directly from our manufacturing partners in China, METTLEAD eliminates middleman markups. You receive competitive unit pricing that protects your margins whether you’re ordering 50 pieces or 5,000.

Frequently Asked Questions – Fan Clutch 1001187075 WEICHAI

How do I know if my WEICHAI fan clutch needs replacement?

Common symptoms of a failing fan clutch include engine overheating under load, the fan spinning freely when the engine is hot (clutch not engaging), or excessive fan noise at cold startup (clutch not disengaging). If the silicone fluid leaks from the housing, replacement is immediate — the fan clutch 1001187075 cannot be refilled in the field.

Is this fan clutch 1001187075 compatible with aftermarket fan blades?

Yes, as long as the aftermarket fan blade uses the same bolt pattern and diameter as the OEM WEICHAI fan assembly. We recommend verifying the fan blade outer diameter does not exceed the shroud clearance to avoid contact damage.

What causes premature fan clutch failure in WEICHAI engines?

The most common causes are silicone oil degradation from prolonged high-temperature exposure, bearing wear from excessive vibration, and external contamination (dust, oil mist) entering the clutch housing. Keeping the engine bay clean and replacing the fan clutch at recommended service intervals (typically 200,000–300,000 km) prevents unexpected failures.

Can I install the fan clutch 1001187075 WEICHAI without special tools?

Installation requires standard hand tools — typically a 32mm or 36mm wrench for the hub nut and appropriate socket set for the mounting bolts. No proprietary WEICHAI tooling is needed. The unit is a direct bolt-on replacement that aligns with the existing water pump shaft.

Does METTLEAD supply other WEICHAI engine cooling components?

Absolutely. Our WEICHAI engine parts catalog includes water pumps, thermostats, radiator hoses, coolant temperature sensors, and complete fan assemblies — everything your cooling system needs under one procurement source.

Ready to Secure Your Supply?

Procurement decisions move fast. Whether you need 20 units for immediate stock replenishment or 2,000 for a fleet overhaul project, METTLEAD delivers the Fan Clutch 1001187075 WEICHAI with short lead times and reliable logistics to your port.

Get your quote today. Send us your quantity, destination port, and any custom packaging requirements — our team responds within 12 business hours with pricing and delivery timelines.

👉 Contact METTLEAD Truck Parts Now

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