21535357 Lip Seal | Genuine Volvo Penta Part

🔧 Product Description

A rotary lip seal used in the intermediate or extension housing of later Volvo Penta IPS propulsion units. It operates beside the main roller bearing and sealing ring in the steering and gear-segment housing assembly.

🚤 Compatibility

• Engine Family: IPS, D

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta later-generation IPS lip seal
• Correct factory profile for housing 21842200
• Designed for seawater and drive-lubricant service
• Installed beside roller bearing 990935
• Replace during intermediate-housing or gear-segment overhaul
• Engine type: Volvo Penta IPS pod drive
• 3 used per assembly

🔌 Function

Prevents seawater and lubricant from passing through the intermediate-housing shaft interface.

⚠️ Common Signs of Failure

• Water ingress into the housing
• Drive-oil leakage
• Milky lubricant
• Seal-lip wear caused by shaft grooving
• Bearing corrosion after seal failure

🛠️ 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

• 21535357 → Supersedes 21452862 → Supersedes 3842062

OEM / Related Numbers

• 21452862 earlier number superseded by this part
• 3842062 earlier number superseded by this part
• 21842200 - intermediate housing
• 21747573 - plate
• 22434842 - cover plate
• 990935 - roller bearing
• 858979 - sealing ring
• 3884188, 3884189 and 3884190 - selective shims
• 21697710 - gear segment
• 3860364 - retaining screw

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C2-B MP, D13C2-A MP, D13C4-A MP, D13B-L MP, D13B-G MP, D13B-K MP, D13B-C MP, D13C6-A MP, D13C4-B MP, D13C5-B MP, D13C5-A MP, D13C7-B MP, D13C8-B MP
• Volvo Penta D11C2-A MP, D11C4-A MP, D11B4-A MP, D11B2-A MP, D11A-C MP, D11A-D MP, D11A-E MP
• Volvo Penta D8A2-A MP, D8A4-A MP, D8A8-A MP
• Volvo Penta IPS15-C, IPS15-B, IPS15-A
• Volvo Penta IPS2-C, IPS2-A, IPS2-B
• Volvo Penta IPS20-D, IPS20-E
• Volvo Penta IPS3-C, IPS3-A
• Volvo Penta IPS30-E, IPS30-D