Volvo Penta Crankshaft Seal 20459115 | Superseded to 24065172
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Volvo Penta Crankshaft Seal — Part No. 20459115
- Original Part Number: 20459115
- Current Replacement: 24065172 (confirmed Volvo Penta supersession)
- Brand: Volvo Penta (Genuine OEM)
- Type: Crankshaft Lip Seal
- Location: Timing gear casing / timing gear housing
- Quantity per Engine: 1
- System: Engine Sealing — crankshaft / timing gear housing
- Cross-References: 20929860, 21628356 (same seal family)
Supersession Notice
Volvo Penta part number 20459115 has been replaced by current part number 24065172. If ordering a replacement, confirm whether 24065172 is available through your Volvo Penta dealer as the current active number. Cross-reference numbers 20929860 and 21628356 appear in the same seal family but should be verified against your specific engine serial before use.
What This Part Does
This crankshaft lip seal sits in the timing gear casing and seals the crankshaft where it passes through the timing gear housing. Its job is to keep engine oil inside the crankcase and prevent external leakage at this location. When the seal fails, oil seepage around the timing housing area is the typical first sign.
Compatible Applications
- Volvo Penta TD420VE
- Volvo Penta TAD420VE
- Volvo Penta TAD620VE
- Volvo Penta TAD650VE
- Volvo Penta TAD660VE
Additional Volvo Penta applications may exist in the same seal family. Always confirm against your engine serial number and the current Volvo Penta parts diagram for your specific engine version before ordering.
Serial Number & Fitment Notice
Crankshaft seals can vary between closely related engine versions and production ranges even within the same family. Confirm the engine model, serial number, and timing-gear-housing configuration against the Volvo Penta parts diagram before installation. Matching the original part number or current replacement 24065172 to the diagram is the safest approach.
When to Replace
- Oil leakage visible around the crankshaft or timing gear housing area
- Timing gear casing removed for major service or overhaul
- Seal lip found hardened, cracked, worn, or damaged on inspection
- Crankshaft sealing surface shows evidence of leakage or grooving
- Engine overhaul procedure calls for seal renewal
Installation Notes
- Remove the old seal carefully to avoid scoring the housing bore or crankshaft sealing surface
- Clean the seal bore and crankshaft surface thoroughly before fitting the new seal
- Inspect the crankshaft sealing surface for grooves, corrosion, or wear — address before installing a new seal
- Install the replacement seal squarely and to the depth specified in the Volvo Penta workshop manual
- Lubricate the seal lip only as directed by the applicable service procedure
- Use any Volvo Penta-specified installation tooling to avoid distorting the seal during fitting
- Confirm the timing gear housing is properly reassembled and sealed before returning the engine to service
Related Products
Parts Desk Insights
The most useful fitment clue for this seal is its specific location in the timing gear casing — not just the description “crankshaft seal.” Volvo Penta used similar-looking crankshaft seals across different engine families and positions, so matching the original part number or confirmed replacement (24065172) against the engine serial and diagram is essential. Oil seepage around the timing housing that appears gradually is the typical symptom when this seal is due for replacement — catching it early avoids more involved cleanup during the next service.
Shipping information
In-stock and OEM parts: ship same or next business day.
Supplier-stock items are usually ready for pickup or shipping within 24 hours of ordering.
Special-order timing may vary.
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.