21306356 Lip Seal | Genuine Volvo Penta Part

🔧 Product Description

A radial crankshaft seal used in the front timing-gear area on selected Volvo Penta D5, D7, TAD5 and TAD7 engines. It supersedes seal 21486084.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD560VE
• Volvo Penta TAD561VE
• Volvo Penta TAD732GE EDC4
• Volvo Penta TAD733GE EDC4
• Volvo Penta TAD765VE
• Volvo Penta TAD764VE
• Volvo Penta TAD763VE
• Volvo Penta TAD762VE
• Volvo Penta TAD761VE

• Engine Family: TAD

⚙️ Key Features

• Supersedes 21486084
• Oil- and temperature-resistant sealing material
• Designed for the original crankshaft and timing-cover diameter
• Engine type: Four- or six-cylinder turbocharged diesel

🔌 Function

Prevents engine oil from leaking where the crankshaft passes through the timing-cover area.

⚠️ Common Signs of Failure

• Oil leakage behind the crankshaft pulley
• Oil contamination of the drive belt
• Hardened or torn sealing lip
• Groove worn into the crankshaft sealing surface
• Falling engine-oil level

🛠️ Service Notes

• Note which way round the old seal sits before you pull it out; a lip seal only holds one way and fitting it reversed guarantees a leak
• Check the shaft or wear sleeve the seal runs on — a groove worn by the old seal, or any burr, nick or rust in the running band, will cut a new seal straight away
• Clean the housing bore, then press the seal in square using a drift or tool that bears on the outer face of the seal, never on the lip, and take it to the depth the original sat at
• Lightly oil or grease the lip and the shaft before assembly so the seal is not run dry on start-up, and keep grit away from the lip
• Sleeve or tape over splines, keyways, threads and step edges when passing the seal over them, and never lever the lip past an edge with a screwdriver

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21306356 → Supersedes 21486084 → Supersedes 20412286 → Supersedes 20459979

OEM / Related Numbers

• 21486084 earlier number superseded by this part
• 20412286 earlier number superseded by this part
• 20967248 earlier number superseded by this part
• 20459979 earlier number superseded by this part

📦 Condition

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