21430611 Flywheel Housing | Genuine Volvo Penta Part

🔧 Product Description

Rear engine flywheel housing used on specified Volvo Penta D5 and D7 industrial generating-set engines. The housing encloses the flywheel area and provides the precision-machined alignment interface for the rear of the engine, starter and driven equipment. Correct housing concentricity is essential for flywheel and coupling alignment.

⚙️ Key Features

• Genuine Volvo Penta rear flywheel housing
• Replacement for earlier part number 20459967
• Precision-machined mounting and alignment surfaces
• Protects the flywheel and supports starter and driven-equipment alignment
• Suitable for specified TAD5 and TAD7 generating-set engine configurations
• Engine type: Volvo Penta inline four- and six-cylinder industrial diesel generating-set engines

🔌 Function

Encloses the rotating flywheel, supports the starter mounting and establishes the rear-engine alignment interface for the driven equipment. The machined bore and mounting faces keep the flywheel, coupling and generator or transmission components concentric with the crankshaft.

⚠️ Common Signs of Failure

• Cracking around starter, engine-block or driven-equipment mounting points
• Rear-engine oil leakage caused by damaged seal-support or mating surfaces
• Starter-pinion or ring-gear noise caused by housing misalignment
• Coupling vibration or repeated flexible-coupling wear
• Damaged threads, corrosion or fretting on the machined mounting faces

🛠️ Service Notes

• Clean both faces back to bare metal and remove every trace of old gasket and sealant before offering the housing up; trapped debris on this joint causes both leaks and misalignment
• Locate the housing on its dowels and pull it down evenly, working outwards from the centre, in the sequence and to the figures in the workshop manual for your engine
• Seal the joints where the housing meets the block and the sump exactly as the manual specifies — those corners are a common source of oil weeps
• Renew the crankshaft rear seal while the access is open rather than refitting an old one, and check its running surface at the same time
• Confirm the housing bore and face run true to the crankshaft before hanging a gearbox or drive on it; a housing out of alignment will destroy couplings and bearings

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21430611 → Supersedes 20459967 → Supersedes 21055043

OEM / Related Numbers

• 20459967 earlier number superseded by this part
• 21055043 earlier number superseded by this part

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging