6312145X is the original equipment fan blade assembly for Shacman trucks equipped with Cummins ISM and ISX engines. This engine fan is designed to deliver maximum airflow while minimizing noise and parasitic power loss. The 6312145X fan engine part ensures your cooling system operates within optimal temperature ranges, even under full load in extreme climates. Shacman trucks rely on this fan for consistent performance across mining, construction, and long-haul operations.
Unlike generic aftermarket fans, the genuine 6312145X features reinforced nylon composite blades with a steel hub. The blade geometry has been aerodynamically optimized to reduce drag and improve airflow efficiency. This directly translates to lower fuel consumption and longer engine life. When you install the OEM fan engine 6312145X, you restore the cooling performance that Shacman engineers originally specified for your vehicle.
Each 6312145X fan assembly is dynamically balanced at the factory to prevent vibration and premature bearing wear. The mounting bolt pattern is precision-drilled to match the water pump flange without modification. Whether you are replacing a cracked blade or upgrading a worn clutch fan, the 6312145X is a direct fit for Shacman Delong, F3000, X3000, and H3000 series with Cummins powerplants.
| Parameter | Specification |
|---|---|
| OEM Part Number | 6312145X |
| English Name | Fan, Engine |
| Brand | Shacman / Shaanxi Automobile |
| Material | High-strength nylon composite + steel hub |
| Blade Count | 9 blades |
| Overall Diameter | 680 mm (±2 mm) |
| Bolt Hole Circle | 6 x 10.5 mm on 120 mm PCD |
| Rotation Direction | Counter-clockwise (viewed from front) |
| Compatible Engines | Cummins ISM, ISX, QSM series |
| Weight | 3.85 kg |
| Balancing Standard | ISO 1940 G6.3 |
Engine cooling is not optional—it is a matter of survival for heavy-duty trucks. The 6312145X fan engine is designed to move a massive volume of air through the radiator and charge air cooler. In hot climates or during steep climbs, coolant temperatures can spike rapidly. The 6312145X fan engages precisely when needed, preventing overheating and protecting cylinder head gaskets from thermal stress. A failed fan can lead to complete engine seizure in minutes.
Many operators underestimate the importance of blade pitch and hub design. The genuine 6312145X uses a progressive pitch angle that reduces noise at high RPM while maintaining airflow. Aftermarket fans often copy the general shape but miss the subtle aerodynamic curves. This can cause vibration that damages water pump bearings and fan clutches. Using the OEM 6312145X eliminates this risk entirely.
Shacman’s collaboration with Cummins means the 6312145X is tested to withstand millions of thermal cycles. The nylon composite resists cracking from stone impacts and temperature swings. The steel hub is zinc-coated to prevent corrosion in salty or humid environments. For fleets operating in coastal regions or chemical plants, this corrosion resistance is a major advantage.
Before installing the 6312145X, disconnect the battery and allow the engine to cool completely. Remove the old fan shroud if necessary to access the mounting bolts. Use a 10mm socket to remove the six bolts securing the fan to the water pump flange. Inspect the flange surface for debris or rust. Clean it with a wire brush and apply a light coat of anti-seize compound.
Position the new 6312145X fan against the flange, ensuring the bolt holes align. Start all six bolts by hand to avoid cross-threading. Tighten them in a star pattern to 25 Nm. Do not overtighten, as this can crack the nylon hub. Reinstall the fan shroud and check for clearance between the blade tips and shroud. A minimum of 8 mm clearance is required on all sides.
After installation, start the engine and let it idle for ten minutes. Listen for any unusual noise or vibration. If the fan wobbles, stop the engine immediately and recheck the bolt torque. A properly installed 6312145X should run smoothly and quietly. Take the truck for a short test drive while monitoring coolant temperature. The fan should cycle on and off as needed.
Every 6312145X fan assembly undergoes a 100% inspection process. Blades are checked for micro-cracks using dye penetrant testing. The hub runout is verified to be within 0.15 mm. Dynamic balancing is performed on a computerized machine at 2500 RPM. Only fans that meet these strict criteria are released for packaging. This is what separates genuine Shacman parts from cheap imitations.
The packaging for the 6312145X includes a molded foam insert to prevent damage during shipping. Each box has a unique serial number that can be verified through Shacman’s official website. If you receive a fan without this traceability, it is likely counterfeit. Always purchase from authorized distributors to ensure you get the real 6312145X.
Fleet owners who track maintenance costs know that using OEM parts like the 6312145X reduces total cost of ownership. While the initial price may be higher, the extended service life and reduced downtime more than compensate. A failed aftermarket fan can destroy a radiator, water pump, and even the engine itself. The 6312145X is cheap insurance against such catastrophic failures.
Yes. The 6312145X is designed to work with both viscous and electromagnetic fan clutches. The bolt pattern matches the standard Cummins flange. Ensure your clutch is in good condition before installing the new fan.
Under normal operating conditions, the 6312145X can last over 800,000 kilometers. Regular inspection of blade tips and hub bolts is recommended every 50,000 km. Replace immediately if any crack or deformation is found.
Yes, the 6312145X fits Shacman natural gas models that use Cummins ISM or QSM engines. The cooling requirements are similar, and the fan provides adequate airflow for intercooled gas engines.
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