21249485 Gear | Genuine Volvo Penta Part

🔧 Product Description

Genuine precision-machined gear used in the hydraulic and auxiliary-drive system of Volvo Penta D5 industrial engines.

🚤 Compatibility

Typically suits:

• Volvo Penta D5A-B TA
• Volvo Penta D5A-T
• Volvo Penta D5A-TA
• Volvo Penta D7A-B TA
• Volvo Penta D7A-T
• Volvo Penta D7A-TA
• Volvo Penta MD2010
• Volvo Penta MD2010B

• Engine Family: D, MD

⚙️ Key Features

• Genuine Volvo Penta drive gear
• Precision-cut tooth profile
• Used in hydraulic and special-function drive assemblies
• Heat-treated for continuous diesel-engine operation
• Maintains correct timing and power transfer

🔌 Function

The gear transfers engine rotation to the associated hydraulic pump or auxiliary mechanism at the required speed and direction.

⚠️ Common Signs of Failure

• Gear whine or knocking
• Chipped teeth
• Metallic debris in the housing oil
• Irregular hydraulic drive operation
• Pitting or scoring on the gear teeth

🛠️ 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 Supersession Chain

• 21249485 → Supersedes 21090036

OEM / Related Numbers

• 21090036 earlier number superseded by this part

📦 Condition

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