Volvo Penta Bell Housing 22564984 — D4 / D6 / DPH / DPI Flywheel Housing

Volvo Penta Bell Housing — Part Number 22564984

What This Part Does

The 22564984 is a genuine Volvo Penta OEM bell housing used in the flywheel housing and primary shaft assembly on a wide range of Volvo Penta marine diesel installations. It provides the structural mounting point between the engine flywheel and the transmission or sterndrive connection, housing the primary shaft, bearings, flexible coupling, and associated seals that transfer engine power to the drive system.

This is the bell housing itself — not a complete primary shaft or coupling assembly. The surrounding shaft, bearings, seals, flexible coupling, and mounting hardware are all serviced separately.

Compatible Applications

Confirm the complete engine model, drive or transmission configuration, and serial number before ordering. The primary shaft, coupling, and bearing arrangement can vary between installations even within the same engine family.

• D4-150A-G
• D4-230A-G
• D4-270A-G
• D4-300A-G
• D4-320A-G
• D6-300A-G
• D6-340A-G
• D6-380A-G
• D6-400A-G
• D6-440A-G
• DPH-D1
• DPH-E
• DPI-A
• KAD44P
• KAMD300-A
• KAMD42 / KAMD43 / KAMD44
• TAMD31D / TAMD31M
• TAMD41P
• TAMD42B
• TMD31D

Always confirm fitment using your engine serial number and the correct Volvo Penta flywheel-housing parts diagram.

Serial Number Requirement

Match part number 22564984 to your engine serial number and the correct Volvo Penta flywheel-housing diagram before ordering. The primary shaft, coupling, and bearing arrangement can vary between serial number ranges and drive configurations even within the same engine family.

Superseded Part Numbers

• 21201104 — earlier Volvo Penta bell housing reference associated with the same assembly (verify by serial number and diagram)

When to Replace This Part

• Housing is cracked or structurally damaged
• Corrosion around mounting or bearing surfaces compromises the fit
• Primary shaft bearing bore is damaged or out of tolerance
• Housing is distorted following a driveline or coupling failure
• Correct alignment between the engine and transmission or drive cannot be maintained

Installation Notes

The 22564984 bell housing is used with several separately serviced components. Inspect all of the following whenever the bell housing is removed, and replace any that show wear:

• Flexible Coupling 21882313
• Primary Shaft 21324794
• Ball Bearing 184841
• Lip Seal 6842273
• Snap Ring 914533
• Snap Ring 914462
• Bearing Bushing 888545
• Sealing Ring 958860
• Clamping Ring 873048
• Rubber Ring 804190

Verify driveline alignment during reassembly before returning the vessel to service. Follow Volvo Penta torque specifications for all flywheel-housing fasteners.

Technical FAQ

Does this part include the flexible coupling, shaft, or bearings?
No. The 22564984 is the bell housing only. The flexible coupling 21882313, primary shaft, ball bearing 184841, seals, and all other components in the assembly are sold and serviced separately.

What is the difference between 22564984 and 21201104?
21201104 is an earlier Volvo Penta bell housing reference associated with the same flywheel-housing assembly. 22564984 is the current active OEM number. Confirm which applies to your engine by serial number and diagram before ordering.

Do I need to check driveline alignment after replacing the bell housing?
Yes. Because the bell housing is the structural connection point between the engine and the drive or transmission, driveline alignment must be verified after installation before the vessel is returned to service.

Related Parts

• Volvo Penta Flexible Coupling 21882313
• Volvo Penta Ball Bearing 184841 — Primary Shaft / Flywheel Housing
• Volvo Penta Lip Seal 6842273
• Volvo Penta Bearing Bushing 888545
• Volvo Penta Primary Shaft 873013

Parts Desk Insights

This is a high-value structural component that typically comes up after a driveline failure or when a coupling or bearing has failed and caused secondary damage to the housing. The most common issue is customers ordering only the failed bearing or seal without inspecting the housing itself — if a bearing has spun or a coupling has failed catastrophically, the housing bore and mounting surfaces should be checked before reassembly. Also worth noting: the surrounding shaft, bearings, seals, and coupling are all serviced separately, so pulling the complete flywheel-housing diagram and ordering all required components at once avoids a second teardown on a part that takes significant labour to access.