Cylinder Head Gasket – Fits Volvo Penta D6 Marine Diesel Engines (Replaces 21165390, 3581869)
Cylinder Head Gasket – Fits Volvo Penta D6 Marine Diesel Engines (Replaces 21165390, 3581869) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Cylinder Head Gasket – Fits Volvo Penta D6 Marine Diesel Engines (R...
Product Details
This aftermarket Cylinder Head Gasket – Fits Volvo Penta D6 Marine Diesel Engines (Replaces 21165390, 3581869) is engineered for a precise fit across the Volvo Penta D6 series, covering engines from 280 to 480 horsepower. It serves as a high-quality replacement, ensuring a reliable seal between the cylinder head and the engine block.
It is a direct replacement for Volvo Penta part numbers 21165390 and 3581869, and also interchanges with Swedish Lorry Parts CHS-390 and Orbitrade ORB90029.
- Designed for direct, drop-in installation.
- Compatible with marine diesel fuel systems.
- Guaranteed to meet or exceed OEM specifications.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 21165390 |
| Volvo Penta | 3581869 |
| Swedish Lorry Parts | CHS-390 |
| Orbitrade | ORB90029 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This gasket is designed exclusively for the following Volvo Penta D6 series engines.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | D6-280A-A, D6-280A-B, D6-280A-C, D6-280A-D | 280 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-280A-E, D6-280I-A, D6-280I-B, D6-280I-C | 280 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-300A-F, D6-300D-F, D6-300I-F, D6-310D-C | 300-310 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-310D-D, D6-310D-E, D6-310I-A, D6-310I-B | 310 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-310I-C, D6-310I-D, D6-310I-E, D6-330A-B | 310-330 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-330A-C, D6-330A-D, D6-330A-E, D6-330A-F | 330 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-330D-B, D6-330D-C, D6-330D-D, D6-330D-E | 330 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-330D-F, D6-330I-B, D6-330I-C, D6-330I-D | 330 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-330I-E, D6-330I-F, D6-350A-A, D6-350A-B | 330-350 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-370A-B, D6-370A-C, D6-370A-D, D6-370A-E | 370 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-370A-F, D6-370D-A, D6-370D-B, D6-370D-C | 370 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-370D-D, D6-370D-E, D6-370D-F, D6-370I-A | 370 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-370I-B, D6-370I-C, D6-370I-D, D6-370I-E | 370 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-370I-F, D6-400A-E, D6-400A-F, D6-435D-A | 370-435 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-435D-C, D6-435D-D, D6-435D-E, D6-435D-F | 435 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-435I-A, D6-435I-C, D6-435I-D, D6-435I-E | 435 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-435I-F, D6-300I-G, D6-300A-G, D6-300D-G | 300-435 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-300I-G, D6-340A-G, D6-340D-G, D6-340I-G | 300-340 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-380A-G, D6-380D-G, D6-380I-G, D6-400A-G | 380-400 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-440A-G, D6-440D-G, D6-440I-G, D6-440I-WJ-G | 440 | 4-Stroke | 21165390/3581869 | ||
| Volvo Penta | D6-480D-G, D6-480I-G, D6-480I-WJ-G | 480 | 4-Stroke | 21165390/3581869 |
Technical Specs
- Product Type
- Cylinder Head Gasket
- Installation
- Direct replacement
- Fuel Type
- Diesel
- Dimensions
- 88.0 cm x 23.5 cm x 0.4 cm
- Warranty
- 1 Year (Swedish Lorry Parts)
What’s in the Box
- 1 x Cylinder Head Gasket (21165390/3581869)
Installation Notes
- Disconnect the vessel's battery and completely drain the engine coolant.
- Relieve fuel system pressure according to the manufacturer’s guidelines.
- Remove the intake/exhaust manifolds, turbocharger, and any other components obscuring the cylinder head.
- Following the reverse of the factory torque sequence, loosen and remove all cylinder head bolts.
- Carefully lift the cylinder head from the engine block. Avoid using pry tools that could damage the mating surfaces.
- Thoroughly clean all old gasket material from both the cylinder head and engine block decks. Ensure surfaces are clean, dry, and flat.
- Position the new cylinder head gasket, paying close attention to its correct orientation using any alignment dowels.
- Gently lower the cylinder head back onto the engine block and gasket.
- Install new torque-to-yield (TTY) head bolts. Tighten them in the specified sequence and to the torque values required by the engine manufacturer.
- Reassemble all previously removed components.
- Refill the cooling system, reconnect the battery, and start the engine. Check for any coolant, oil, or exhaust leaks.
Troubleshooting & FAQ
What are the signs of a failing cylinder head gasket?
Common symptoms include engine overheating, white smoke from the exhaust (coolant burning), milky or frothy engine oil, unexplained coolant loss, and bubbling in the coolant reservoir. Any of these signs warrant an immediate inspection.
How can I confirm this fits my specific D6 model?
This gasket is designed for the extensive list of Volvo Penta D6 models shown in the compatibility table. The best way to ensure a perfect match is to cross-reference your full engine model number (e.g., D6-435I-F) with the list provided.
What are the most common causes of premature gasket failure?
The leading causes are engine overheating, improper installation (incorrect torque or sequence), and pre-existing warped cylinder heads or engine blocks. Always ensure the cooling system is functioning correctly and mating surfaces are perfectly flat before installation.
Should I reuse my original head bolts?
No. Volvo Penta D6 engines use torque-to-yield (TTY) bolts, which are designed to stretch permanently upon their first use. Reusing them can result in improper clamping force and lead to gasket failure. Always install new head bolts with a new gasket.
Is this gasket different from the OEM version?
Our aftermarket gasket is engineered to meet or exceed OEM specifications for fit, form, and function. It is made from comparable high-quality materials to ensure a durable and reliable seal at a more competitive price point.
Is a professional mechanic required for this job?
Due to the complexity of the job and the need for specialized tools like a torque wrench and adherence to strict torque sequences, professional installation is highly recommended to ensure the longevity and performance of the engine.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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