22356360 Idler Gear | Genuine Volvo Penta Part

🔧 Product Description

A genuine timing-gear-train idler used to transmit drive to the power-steering pump on Volvo Penta D9A2A marine diesel installations. The gear is manufactured to the required tooth profile, hub dimensions and running clearance for the engine gear train.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1180-83VE
• Volvo Penta D11B3-A MP
• Volvo Penta D11B4-A MP
• Volvo Penta D11B2-A MP
• Volvo Penta D11B1-A MP
• Volvo Penta D9A2J
• Volvo Penta D9A2G
• Volvo Penta D9A2L MH
• Volvo Penta D9A2D
• Volvo Penta D9A2B
• Volvo Penta D9A2F
• Volvo Penta D9A2K
• Volvo Penta D9A2H
• Volvo Penta D9A2M MP
• Volvo Penta D9A2A
• Volvo Penta D9A2C
• Volvo Penta D9A2E
• Volvo Penta TAD1170-72VE
• Volvo Penta TAD1150-52VE
• Volvo Penta TAD1140-42VE

• Engine Family: TAD, D

⚙️ Key Features

• Dedicated idler gear for the power-steering-pump drive
• Precision-machined tooth form for correct timing-gear engagement
• Maintains the intended drive direction and gear-train spacing
• Direct OEM replacement for the earlier idler-gear reference
• Install only after checking the hub, thrust surfaces, mating gears and lubrication supply
• Engine type: 9.4-litre, six-cylinder turbocharged marine diesel

🔌 Function

Transfers mechanical drive through the engine gear train to the power-steering pump, allowing the steering hydraulic system to operate whenever the engine is running.

⚠️ Common Signs of Failure

• Whining, knocking or gear-rattle from the timing-gear area
• Excessive backlash or visible tooth wear
• Metal particles in the engine oil or around the gear housing
• Intermittent or failed power-steering-pump drive
• Damage to the hub, thrust washer or adjacent gears

🛠️ Service Notes

• Inspect the gear teeth, the bearing or bushing and the shaft or hub it runs on together — a new gear on a worn shaft will be noisy and short-lived
• Check the mating gears at the same time; a chipped or pitted tooth on either side will damage the new idler
• Where the gear forms part of a timed drive, set it up to the timing marks and the procedure in the workshop manual for your engine and confirm timing before turning the engine over
• Measure backlash and endfloat by the method in the manual rather than judging them by feel, and fit any thrust washer or plate in its original order and direction
• Oil the bearing surfaces and teeth on assembly and turn the drive over by hand to check it runs free before the covers go back on

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 22356360 → Supersedes 21677819 → Supersedes 20714549 → Supersedes 20837971 → Supersedes 20484803

OEM / Related Numbers

• 21677819 earlier number superseded by this part
• 20714549 earlier number superseded by this part
• 20837971 earlier number superseded by this part
• 20484803 earlier number superseded by this part
• 20520535 (associated hub)
• 8131850 (associated thrust washer)
• 21015266 (associated flange screw)

📦 Condition

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