Gasket Kit, Decarbonizing Set – Fits Volvo Penta D6 Series (Replaces 21371111, 3588433)
Gasket Kit, Decarbonizing Set – Fits Volvo Penta D6 Series (Replaces 21371111, 3588433) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This Gasket Kit, Decarbonizing Set is designed for engine decarbonizing service on Volvo Penta D6 series diesel engines (280–435 HP, inline 6-cylinder) manufactured from 2006 to the present. The comprehensive kit includes the essential cylinder head gasket, o-rings, exhaust manifold gaskets, and sealing compounds for a complete top-end reseal.
It serves as a direct replacement for Volvo Penta part numbers 21371111 and 3588433.
- Designed for professional engine service and top-end maintenance.
- Includes critical components like the cylinder head gasket and sealing agents.
- Engineered for modern D6 series diesel fuel systems.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 21371111 |
| Volvo Penta | 3588433 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is compatible with the following Volvo Penta D6 series engines.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | D6-280A-A | 280 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-280A-B, D6-280A-C, D6-280A-D, D6-280A-E | 280 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-280I-A, D6-280I-B, D6-280I-C, D6-280I-D, D6-280I-E | 280 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-300A-F | 300 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-300D-F | 300 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-300I-F | 300 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-310A-A, D6-310A-B, D6-310A-C, D6-310A-D, D6-310A-E | 310 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-310D-B, D6-310D-C, D6-310D-D, D6-310D-E | 310 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-310I-A, D6-310I-B, D6-310I-C, D6-310I-D, D6-310I-E | 310 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-330A-B, D6-330A-C, D6-330A-D, D6-330A-E, D6-330A-F | 330 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-330D-B, D6-330D-C, D6-330D-D, D6-330D-E, D6-330D-F | 330 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-330I-B, D6-330I-C, D6-330I-D, D6-330I-E, D6-330I-F | 330 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-350A-A, D6-350A-B | 350 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-370A-B, D6-370A-C, D6-370A-D, D6-370A-E, D6-370A-F | 370 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-370D-A, D6-370D-B, D6-370D-C, D6-370D-D, D6-370D-E, D6-370D-F | 370 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-370I-A, D6-370I-B, D6-370I-C, D6-370I-D, D6-370I-E, D6-370I-F | 370 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-400A-E, D6-400A-F | 400 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-435D-A, D6-435D-C, D6-435D-D, D6-435D-E, D6-435D-F | 435 | 4-Stroke | 2006–Present | 21371111/3588433 | |
| Volvo Penta | D6-435I-A, D6-435I-C, D6-435I-D, D6-435I-E, D6-435I-F | 435 | 4-Stroke | 2006–Present | 21371111/3588433 |
Technical Specs
- Product Type
- Decarbonizing Gasket Kit
- Installation
- Engine Service
- Fuel Type
- Diesel
- Dimensions
- 87.5 cm × 21.5 cm × 2.0 cm (L×W×H)
- Weight
- 0.87 kg (1.92 lb)
- Other Technical Attributes
- Contains cylinder head gasket, exhaust manifold gaskets, o-rings, sealing compounds
What’s in the Box
- 1 x Gasket (21165390/3581869) - Cylinder Head Gasket
- 1 x Gasket (947622) - Gasket
- 1 x Valve (877072) - Valve
- 1 x Gasket (964106) - Gasket
- 1 x O-Ring (976039) - O-Ring
- 1 x O-Ring (947776) - O-Ring
- 1 x O-Ring (975309) - O-Ring
- 1 x Gasket (969011) - Gasket
- 1 x Gasket (11994) - Gasket
- 1 x O-Ring (3887602/3583078) - O-Ring
- 1 x Gasket (3583336) - Exhaust Manifold Gasket
- 1 x Gasket (3582725) - Exhaust Manifold Gasket
- 1 x Gasket Kit (3588435) - Turbo Gasket Set
- 1 x Gasket Kit (3588436) - Heat Exchanger Gasket Kit
- 1 x Adhesive (1161370/22618324) - Sealing Agent
- 1 x Sealing Compound (1161059/22618326) - Sealing Compound
- 1 x Adhesive (888661/1161771/22618327) - Adhesive/Sealant
Installation Notes
- Preparation: Disconnect the battery and ensure the engine is cool. Drain the coolant and other necessary fluids before starting work.
- Disassembly: Carefully remove components to access the cylinder head and manifolds. Keep all hardware organized for reassembly.
- Cleaning: Thoroughly clean all gasket mating surfaces to remove any old material or carbon buildup. Ensure surfaces are perfectly smooth and dry.
- Installation: Install the new gaskets and o-rings from the kit. Apply sealing compounds as specified in your engine's service manual.
- Reassembly: Reinstall all components in the reverse order of removal. It is critical to torque all bolts to the manufacturer's specified values and sequence.
- Final Checks: Refill all fluids, reconnect the battery, and carefully check for any leaks after starting the engine.
Troubleshooting & FAQ
Will this kit fit all Volvo Penta D6 engines?
This kit is designed for a wide range of Volvo Penta D6 models from 2006 to present. However, it is critical to verify your exact engine model against the compatibility table on this page before ordering.
What are the primary signs that a decarbonizing gasket set is needed?
Telltale signs include engine overheating, loss of compression, visible coolant or oil leaks around the cylinder head, and white smoke from the exhaust, which may indicate a blown head gasket.
Does this kit include torque specifications?
No, this kit does not include torque specifications or detailed step-by-step instructions. Always refer to your official Volvo Penta service manual for proper procedures, torque values, and sequences.
How often should these gaskets be replaced?
These gaskets are not regular maintenance items with a fixed replacement interval. They are replaced during major engine overhauls, de-carbonizing procedures, or when a failure is diagnosed.
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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