Volvo Penta Lip Seal 21535352 | OEM IPS Intermediate Housing Seal
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Volvo Penta Lip Seal — Part #21535352
This is the genuine OEM lip seal for the intermediate housing of Volvo Penta IPS drive systems. Positioned within the intermediate housing assembly, this seal prevents water and contaminants from reaching internal drive components, protecting adjacent bearings and sealing surfaces. Sold individually as a direct OEM replacement.
Part Details
- Part Number: 21535352
- Brand: Volvo Penta
- Official Product Type: Lip Seal
- System: IPS Drive — Intermediate Housing
- Condition: New OEM
- Sold: Individually
Superseded / Cross-Reference Part Numbers
- 21535352 — Current OEM part number
- 21452859 — Previous Volvo Penta reference (superseded by 21535352)
Compatible Applications
- Volvo Penta IPS-A
- Volvo Penta IPS-B
- Volvo Penta IPS-C
- Volvo Penta IPS-D
- Volvo Penta IPS-E
- Volvo Penta IPS-F
- Volvo Penta IPS10-A
- Confirm exact IPS drive model and intermediate-housing diagram position before ordering — Volvo Penta uses multiple sealing components within IPS assemblies
Technical Specifications
- Location: IPS intermediate housing
- Function: Prevents water ingress and contamination to internal drive components and bearings
- Fitment: Direct OEM replacement — no modification required
- Estimated Weight: Approx. 0.05 kg
- Note: Confirm diagram position in the Volvo Penta IPS parts diagram for your specific drive generation before installation
Parts Desk Insights
Best Use Case: This seal is the correct replacement when the IPS intermediate housing is being disassembled for service — whether due to water intrusion, bearing replacement, or a scheduled drive overhaul. It's standard practice to replace the lip seal any time the intermediate housing is opened, regardless of visible wear, since reinstalling an old seal into a freshly serviced housing is a common source of repeat failures.
Common Issues: The most frequent ordering mistake with this part is confusing it with other seals in the IPS assembly — there are several sealing components in close proximity, and they are not interchangeable. Matching by IPS generation and exploded-diagram position is the most reliable method. If you're unsure which seal you need, send us your IPS drive model and the diagram position reference and we'll confirm before you order.
When to Replace
Replace this lip seal when there is evidence of water intrusion into the intermediate housing, visible deterioration or damage to the sealing lip, or any time the intermediate housing is disassembled for bearing or drive component service. Inspect the mating sealing surface and nearby O-rings at the same time and replace as needed.
Service Interval
This seal is not a scheduled replacement item under normal operating conditions. However, it should be inspected and replaced whenever the IPS intermediate housing is disassembled. Volvo Penta recommends IPS drive service at regular intervals — refer to your drive's service manual for the applicable schedule.
Technical FAQ
Q: How do I confirm this is the correct seal for my IPS drive?
A: Cross-reference your IPS drive generation (IPS-A through IPS-F or IPS10-A) against the Volvo Penta parts diagram for the intermediate housing assembly. The diagram position number is the most reliable confirmation. Contact us with your drive model if you need help identifying the correct part.
Q: My old part number is 21452859 — is 21535352 a direct replacement?
A: Yes. 21535352 is the current OEM part number that supersedes 21452859. It is the correct replacement for that earlier reference.
Q: Should I replace other seals and O-rings at the same time?
A: Yes — whenever the intermediate housing is open, it's best practice to replace all seals and O-rings in the assembly. This avoids having to re-open the drive shortly after for a seal that was borderline at the time of service.
Related Parts
- Volvo Penta IPS10-A Propulsion Oil Filter 23935461 — service alongside during IPS maintenance
- Volvo Penta IPS Shift Control Solenoid Valve 11418522 — related IPS drive component
- Volvo Penta DPI Service Kit 23538670 — comprehensive IPS/DPI drive service kit
- Volvo Penta Sealing Ring 1546221 — related sealing component
- Volvo Penta Gasket Kit 3812357 — gasket kit for drive service
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.