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612630020349 SHACMAN WEICHAI WP12 WP13 Flywheel Assembly

The 612630020349 is a critical Engine Flywheel Assembly manufactured by Weichai Power, designed specifically for WP12 and WP13 Blue Power (Land King) series diesel engines. As a core component of the powertrain, this flywheel connects the engine to the transmission system (clutch/gearbox), providing the necessary rotational inertia to smooth out engine speed fluctuations and ensure stable idling.

Constructed from high-strength ductile iron or alloy cast iron, this heavy-duty flywheel is engineered to withstand high torque loads and thermal stress generated during frequent clutch engagement. It is widely compatible with major Chinese heavy-duty truck brands, including SHACMAN (Delong X3000/M3000) and SINOTRUK (HOWO), as well as various construction machinery equipped with Weichai 12L/13L engines. The assembly includes the flywheel body and the starter ring gear, precision-balanced to prevent vibration and protect the crankshaft.

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Model:
612630020349
Brand:
Shacman

Product Description

Attribute	Details
Product Name	Engine Flywheel Assembly
OE Part Number	612630020349
Variant Number	612630020349A
Brand Compatibility	Weichai Power (WP12, WP13 Series)
Engine Standard	Euro II / III / IV / V (Blue Power Series)
Applicable Vehicles	SHACMAN Delong, SINOTRUK HOWO, Heavy Duty Trucks
Vehicle Type	Tractor Head, Dump Truck, Cargo Truck, Mining Truck
Compatible Machinery	LGMG, Tonly, Loaders, Cranes (with Weichai Engine)
Material	High-Strength Ductile Iron / Alloy Cast Iron (Heat Treated)
Clutch Compatibility	Φ430 mm (Push or Pull Type Clutch Pressure Plate)
Quality Standard	OEM / Genuine Quality (Dynamic Balanced)
Origin	China (Weichai Power)

Parameter	Specification
Ring Gear Teeth	160 Teeth (Most Common) / 136 or 150 (Verify with Starter)
Mounting Bolt Holes	12 High-Strength Bolt Holes (Precision Machined)
Weight	Approx. 25 kg - 45 kg (Heavy-Duty Specification)
Friction Surface	Machined for High Friction & Heat Dissipation
Balance Type	Static & Dynamic Balance Certified (Low Unbalance Mass)
Thermal Capacity	High Heat Absorption to Prevent Clutch Burnout
Hardness	Heat-Treated Surface for Wear Resistance
Bolt Specification	M12 / M14 High-Strength Grade (Depending on Batch)
Bearing Compatibility	Fits Standard Flywheel Bearing (e.g., 6205-RS)
Operating Speed	Designed for High-RPM Heavy-Duty Diesel Engines