Volvo Penta D3 Valve Cover Gasket 31430317 | OEM Cylinder Head Seal
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Part Information
- Part Number: 31430317
- Brand: Volvo Penta
- Official Product Type: Valve Cover Gasket — Cylinder Head
- Supersedes: 30777600, 31338170
- Replaced By: No current supersession on record
- Diagram Position: D3 Cylinder Head Assembly — Valve cover gasket, used with valve cover 31430316
Overview
The Volvo Penta 31430317 is the current genuine OEM valve cover gasket for Volvo Penta D3 marine diesel engines. It seals the joint between the valve cover and the cylinder head, preventing oil seepage from the upper engine. This gasket is the direct replacement for earlier D3 valve cover gasket numbers 30777600 and 31338170, and is the correct match for current valve cover 31430316. It should always be replaced any time the valve cover is removed — reusing an old gasket risks oil leakage after reassembly.
Compatible Applications
- Volvo Penta D3-110I (all generations)
- Volvo Penta D3-140A / D3-140I (all generations)
- Volvo Penta D3-150I (all generations)
- Volvo Penta D3-170A / D3-170I (all generations)
- Volvo Penta D3-200A / D3-200I (all generations)
- Volvo Penta D3-220A / D3-220I (all generations)
Confirm your engine model and serial number against the Volvo Penta D3 cylinder-head diagram before ordering, especially if prior cover or gasket replacements have been made.
Serial Number Requirements
Fitment can vary by engine version and production range within the D3 family. Always confirm your engine model and serial number against the applicable Volvo Penta D3 cylinder-head parts diagram before ordering.
System
Engine Internal — Cylinder Head / Valve Cover Sealing
Related Parts — D3 Cylinder Head Assembly
The following components are part of the D3 cylinder-head assembly and should be inspected during valve cover gasket service:
- Valve Cover — 31430316 (always replace gasket when installing a new cover)
- Pressure Sensor — 31216308
- O-ring — 30756062
- Oil Filler Pipe — 30777537
- Valve Spring — 31258132
- Pivot — 31251885
- Tappet / Cam Roller — 8670045
Dimensions & Weight
- Weight: Approximately 0.09 kg
- Gasket profile matches valve cover 31430316 — confirm via Volvo Penta D3 cylinder-head diagram
Service Interval
Replace every time the valve cover is removed for any reason. This is a single-use gasket — it should never be reused once the cover has been disturbed.
Installation Notes
- Remove all old gasket material from both the cover and cylinder-head sealing surfaces
- Inspect the valve cover sealing flange for distortion before installing the new gasket
- Confirm the gasket seats correctly in the cover channel before assembly
- Tighten cover fasteners evenly and in sequence to the torque values specified in the Volvo Penta D3 service documentation
- Run the engine and inspect for oil seepage before returning to service
Technical FAQ
Q: What earlier part numbers does 31430317 replace?
A: 31430317 supersedes earlier Volvo Penta gasket numbers 30777600 and 31338170. Always order by the current active OEM number.
Q: Which valve cover does this gasket pair with?
A: 31430317 is the correct gasket for current valve cover 31430316. If your engine has an earlier cover number, confirm the correct gasket against your engine serial number and the D3 cylinder-head diagram.
Q: Can I reuse the old gasket if it looks undamaged?
A: No. Valve cover gaskets should always be replaced when the cover is removed. A gasket that has been compressed and heat-cycled will not seal as reliably as a new one, even if it appears intact.
Q: What causes oil leaks at the valve cover after a gasket replacement?
A: The most common causes are a distorted or warped valve cover sealing flange, old gasket material left on the mating surface, or fasteners not tightened evenly. Inspect the cover for distortion and clean both surfaces thoroughly before installing the new gasket.
Parts Desk Insights
Valve cover gaskets are easy to underestimate — the old one often looks fine once removed, but a gasket that’s been compressed and heat-cycled won’t seal as well as a new one. The most common post-service issue is oil seepage because the gasket was reused or the cover sealing flange wasn’t checked for distortion. It’s also worth noting the supersession: customers with older D3 engines may reference 30777600 or 31338170 — 31430317 is the current replacement for both. Always pair this gasket with valve cover 31430316 when the cover itself is being replaced.
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
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.
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