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Faw Jiefang J6 JH6 J6P Truck Spare Parts New Condition Engine Flywheel Assembly 1005120-73D-0000

Faw Jiefang J6 JH6 J6P Truck Spare Parts New Condition Engine Flywheel Assembly 1005120-73D-0000

The Flywheel & Ring Gear Assembly (Part No. 1005120-73D-0000) is an original equipment (OE) component produced by FAW Jiefang and engineered by FAWDE (AWEIL) for use in high-power heavy-duty diesel engines. Commonly known as the "Aowei 81D Flywheel," this assembly serves as the critical interface between the engine crankshaft and the transmission system.

Mounted directly to the rear end of the crankshaft, it stores rotational energy during power strokes and releases it during non-power strokes, ensuring smooth and stable engine operation. The integral ring gear engages with the starter motor pinion to enable engine cranking at startup, while the precision-machined friction surface provides reliable contact with the clutch disc for efficient torque transfer.

Designed for durability under extreme thermal and mechanical loads, this flywheel is widely used on FAW J6P, JH6, and Aowei-series trucks equipped with CA6DM2 and CA6DL2 engines. Its robust construction, strict dynamic balancing, and high-quality material make it essential for safe and reliable drivetrain performance — especially in long-haul, mining, and heavy-load transport applications.

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Model:
1005120-73D-0000
Brand:
FAW

Product Description

Attribute	Description
Product Name	Flywheel with Ring Gear Assembly
Manufacturer	FAW Jiefang Co., Ltd. / FAWDE (AWEIL Engine Division), China
Type	Original Equipment (OE) Replacement Part
Function	- Stores rotational inertia to stabilize engine speed - Transmits torque from engine to transmission via clutch system - Enables engine starting via engagement with starter motor
Application	Heavy-duty diesel engines – rear crankshaft-mounted flywheel
Material	High-strength cast iron (gray or ductile iron) with excellent vibration damping and thermal fatigue resistance
Design Standard	Meets ISO9001, TS16949 quality systems; OE specifications for balance, hardness, and dimensional accuracy
Performance Features	Precision-ground friction surface, optimized tooth profile, factory-dynamic balanced

Parameter	Value / Detail
OEM Part Number	1005120-73D-0000
Alternate Part Number	1005120-73D
Flywheel Type	Integrated ring gear design (one-piece or interference-fit depending on batch)
Clutch Compatibility	Designed for 430mm diameter clutch system (standard heavy-truck size)
Weight Range	Approx. 55 kg – 65 kg (typical); up to 100kg with special counterweights
Ring Gear Teeth Count	Typically 136 teeth or 150 teeth — must match starter motor pinion (verify based on vehicle configuration)
Friction Surface	Precision ground; surface roughness Ra ≤ 1.6 μm; free of deep grooves, cracks, or blueing
Dynamic Balance	Factory-balanced to minimize vibration at high RPM; residual imbalance < 50 g·cm
Mounting Pattern	Matches bolt holes on crankshaft flange (SAE #1 or custom FAW pattern)
Center Pilot Bearing	Houses a guide bearing (pilot bushing) for manual transmission input shaft alignment