Volvo Penta D3 Camshaft Sealing Ring 8631561
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Part Details
- Part Number: 8631561
- Brand: Volvo Penta
- Official Product Type: Camshaft Sealing Ring (Camshaft Shaft Seal)
- Supersedes: No confirmed superseding number on record
- Replaced By: 8631561 is the current active part number
- Engine Family: Volvo Penta D3 2.4L 5-cylinder marine diesel
- System: Cylinder head / camshaft — seals the camshaft outlet at the cylinder head, preventing engine oil from escaping where the camshaft passes through the head
- Diagram Position: Item 33 on earlier D3-110 / D3-130 / D3-160 / D3-190 cylinder head diagrams; Item 29 on later D3-110 through D3-220 layouts. Confirm against the diagram for your specific engine serial number.
- Quantity Required: 1 per engine
- Kit Contents: One camshaft sealing ring, supplied individually
Compatible Applications
Fitment is engine-model, generation, and serial-number specific. Confirm 8631561 in the Cylinder Head parts diagram for the exact D3 model and serial number. Applications span multiple A, B, C, D, E and F generation D3 variants, including both inboard and Aquamatic configurations.
- D3-110 (selected generations)
- D3-130 (selected generations)
- D3-140 (selected generations)
- D3-150 (selected generations)
- D3-160 (selected generations)
- D3-170 (selected generations)
- D3-190 (selected generations)
- D3-200 (selected generations)
- D3-220 (selected generations)
Serial Number Fitment Notice
Confirm the exact D3 model, suffix (A through F generation), and engine serial number before ordering. While 8631561 appears across a broad range of D3 cylinder head assemblies, the safest fitment check is to verify the seal directly in the Cylinder Head diagram for the specific serial number. Do not confuse with 8631652 valve-stem seals — these are two different sealing locations in the same engine.
Aftermarket Cross-References
The following aftermarket numbers are catalogued against Volvo Penta 8631561. Verify against the engine application before substitution:
- Elring 394.110
- Victor Reinz 81-39267-00
- BGA OS8357
- FAI OS1389
- Glaser P77628-01
- Corteco 19036888B
When This Part Needs Replacement
- Engine oil leaking from the camshaft outlet area
- Oil staining near the cylinder-head end of the camshaft
- Sealing lip is hardened, cracked, or damaged
- Seal disturbed or removed during camshaft or cylinder-head service
- Persistent oil leakage after nearby gasket or cover service
- Camshaft, cylinder head, or related timing components removed for any reason
Installation Notes
Clean the camshaft sealing surface and seal bore before installation. Inspect the camshaft contact surface for scoring, wear, or grooving — a new seal installed over a damaged shaft surface will fail prematurely. Avoid damaging the sealing lip during installation and install the seal squarely to the correct depth. Lubricate the sealing lip lightly with clean engine oil and orient the seal as specified by the Volvo Penta service procedure.
Check the surrounding valve-cover and cylinder-head sealing areas for additional leakage while access is available. Because the seal operates on a rotating camshaft surface, even minor damage to the sealing lip or shaft contact area can cause a repeat leak.
Related Parts
- 8631652 — Volvo Penta D3 Valve-Stem Seals (different sealing location — do not confuse with 8631561)
- D3 Cylinder Head Gasket
- D3 Valve Cover Gasket
- D3 Timing Belt
- D3 Camshaft
Parts Desk Insight
The most important thing to know about 8631561 is what it is not: it’s the camshaft seal, not a valve-stem seal or cylinder-head gasket. On D3 engines, Volvo Penta uses separate valve-stem seals (such as 8631652) at a completely different location in the cylinder head. Confusing the two is easy if ordering by description rather than part number — always match by 8631561 specifically. Oil leaking from the camshaft area on a D3 is sometimes chased through multiple gasket replacements before the camshaft seal itself is identified as the source, so if there’s unexplained oil at the top end of the engine, this seal is worth checking early.
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.