21430908 Gear | Genuine Volvo Penta Part

🔧 Product Description

Camshaft timing gear used in the timing-gear train on specified Volvo Penta D13C marine propulsion engines. It transfers crankshaft timing through the gear train to the camshaft and maintains the precise relationship required for valve operation and fuel-system timing.

🚤 Compatibility

Typically suits:

• Volvo Penta D13C2-B MP
• Volvo Penta D13C4-B MP
• Volvo Penta D13C5-B MP
• Volvo Penta D13C6-A MP
• Volvo Penta D13C7-B MP
• Volvo Penta D13C8-B MP

• Engine Family: D

⚙️ Key Features

• Genuine Volvo Penta D13C camshaft timing gear
• Precision-machined tooth form for the D13 timing-gear train
• Maintains accurate camshaft-to-crankshaft timing
• Used with the specified camshaft, bearing housings, spacer and vibration damper
• Critical engine-overhaul component requiring timing-mark and backlash checks during installation
• Engine type: Volvo Penta D13 inline six-cylinder marine diesel

🔌 Function

Drives the camshaft at the required relationship to crankshaft rotation. Correct tooth condition, gear backlash and timing alignment are essential for valve timing, combustion quality and piston-to-valve clearance.

⚠️ Common Signs of Failure

• Abnormal timing-gear whine, knock or rattle
• Chipped, pitted or unevenly worn gear teeth
• Camshaft or crankshaft correlation faults
• Loss of power, rough running or incorrect valve timing
• Metal debris in the timing case or excessive measured gear backlash

🛠️ Service Notes

• Inspect the mating gear as well as the one being renewed; a chipped or worn tooth on the partner will quickly ruin a new gear, so change them as a pair where the wear is shared
• Check the shaft, bush or bearing the gear runs on for wear and scoring before assembly and renew anything that is not to size
• Fit the gear square and press it home rather than driving it with hammer blows, which spread the bore and mark the teeth
• Oil the teeth and bearing surfaces on assembly so the gear is not run up dry on first start
• Where the workshop manual for your engine gives backlash, end float or timing settings for the gear, set and check them to those figures rather than by feel

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 22783144 - Camshaft
• 22879256 and 22879257 - Camshaft bearing kits
• 21473105 - Timing-gear vibration damper
• 21691892 - Spacer
• 20813823 - Front camshaft bearing housing
• 20907267 - Rear camshaft bearing housing
• 950553 - Locating pin
• 8192804 and 975105 - Associated flange screws

📦 Condition

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