Volvo Penta O-Ring – 3580818
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Volvo Penta 3580818 is a genuine OEM O-ring used in select Volvo Penta marine diesel cooling-system applications. Volvo Penta’s parts catalog identifies it simply as O-ring, while public marine-parts listings most consistently place it in heat exchanger / oil cooler sealing service on compact Volvo Penta diesel engines. Based on the public fitment trail, this is best treated as a serial-number-confirmed sealing O-ring rather than a universal ring by size alone.
Key Features
- Genuine Volvo Penta part number 3580818
- Officially listed as O-ring
- Commonly associated with heat exchanger / oil cooler sealing service
- Used in select Volvo Penta compact diesel applications
- Best matched by exact part number, engine model, and serial number
Engine Compatibility
Public fitment listings most commonly associate Volvo Penta 3580818 with engines including D2-50F, D2-55, D2-55B, D2-55C, D2-55D, D2-55E, D2-55F, MD22L, MD22P, TAMD22P-B, TMD22B, and TMD22P-C. Because seller descriptions vary slightly on exact application wording and assembly naming, fitment should still be confirmed by the exact engine model and serial number before ordering.
Serial Number Fitment Notice
Please confirm fitment by engine model and serial number before ordering. Public sources agree on the part identity and compact-diesel usage, but the safest match is still against the exact cooling-component application on the engine being serviced.
When This Part Needs Replacement
Replace this O-ring whenever the related heat exchanger, oil cooler, or end-cap assembly is removed and the original seal is flattened, hardened, cut, leaking, or no longer sealing correctly. Public service-oriented listings also tie replacement to heat-exchanger cleaning and cooling-system maintenance.
Installation Notes
Install only on the correct Volvo Penta application and verify the sealing location before ordering. Matching by part number, engine model, serial number, and removed seal location is the safest approach, especially on MD22 / D2 / TMD22-family cooling components.
Alternate / Superseded Part Numbers
- 3580818
- Public sources reviewed here did not clearly confirm a Volvo Penta superseded replacement number for this exact O-ring.
Parts Desk Insight
The strongest public data on 3580818 is not just that it is an O-ring, but that it is commonly sold for compact-diesel heat exchanger / oil cooler sealing service. For Marisol Marine customers, the cleanest sale is against the exact engine serial number and cooling-component location, especially on D2-55 / MD22 / TMD22 applications.
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Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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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.
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Important:
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