SINOTRUK HOWO Weichai Engine Flywheel Housing R61540010010 for WD615、WP10、WP12 engine

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SINOTRUK HOWO Weichai Engine Flywheel Housing R61540010010 for WD615,WP10,WP12 engine

A key cast component at the rear of the engine, mounted at the rear of the engine block, it surrounds and protects the flywheel, while also serving as the bell housing for the gearbox/clutch assembly, connecting the engine to the gearbox/clutch assembly.

Function

1. Protects the flywheel and internal components: As a sealed housing at the rear of the engine, it completely surrounds and secures the flywheel, preventing it from being ejected or damaged due to centrifugal force or accidental impact during high-speed rotation. It also isolates external dust, mud, moisture, and foreign objects from intrusion, protecting precision components such as the flywheel ring gear, crankshaft rear end, and clutch pressure plate from contamination and damage, ensuring a clean and reliable engine rear end.

2. Achieves precise connection between the engine and transmission: The flywheel housing serves as the interface bridge between the engine and transmission. Its precision-machined mounting flange surface, locating pin holes, and bolt holes ensure perfect coaxial alignment between the engine crankshaft centerline and the transmission input shaft. This results in smooth, vibration-free power transmission, preventing premature bearing wear, abnormal noise, vibration, or incomplete clutch disengagement caused by misalignment.

3. Installs starter motor and auxiliary accessories: The side of the housing features starter motor mounting holes, facilitating the starter motor to drive the flywheel to start the engine; some versions support rear power take-off (PTO) mounting for connecting hydraulic pumps, generators, or other auxiliary equipment, expanding the engine's multi-functional output.

4. Sealing and oil leakage prevention: It fits tightly with the rear end face of the engine block, the rear oil seal of the crankshaft, and the oil seal of the transmission input shaft to form a closed chamber, preventing engine oil from leaking to the clutch/transmission side; at the same time, it maintains the pressure balance of the crankcase, reduces the risk of blow-by and oil leakage, and improves the overall sealing performance and durability.

DETAILS

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