# 21371111 Gasket Kit | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta D6 Cylinder Head Decarbonising Gasket Kit - Part Number: 21371111

  

A genuine Volvo Penta upper-engine gasket package for cylinder-head removal and decarbonising work on D6 marine diesels from 280HP to 435HP. It replaces the earlier kit reference 3588433 and includes the principal head, valve and associated seals disturbed during the repair.

  

Kit Contents:

  

• 1 x cylinder-head gasket - Volvo Penta 21165390

• 1 x gasket - Volvo Penta 947622

• 1 x valve - Volvo Penta 877072

• Additional matched upper-engine O-rings, valve-stem seals and manifold gaskets - supplied within complete kit 21371111; the full loose-part breakdown varies by production revision

  

⚙️ Key Features

  

• Genuine Volvo Penta D6 decarbonising set

• Includes cylinder-head gasket 21165390

• Replaces earlier kit 3588433

• Covers D6-280 through D6-435 families

• Aftermarket complete head-gasket sets available

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21371111 → Replaces Volvo Penta 3588433

  

OEM / Related Numbers:

  

• 21371111

• 3588433

• 21165390

• 947622

• 877072

  

Aftermarket / Verified Equivalents:

  

• Crom Marine: D6 decarbonising gasket set equivalent

• Poseidon Marine: D6 280-435 head gasket kit replacing 3588433 / 21371111

  

🚤 Compatibility

  

Commonly used on:

  

• D6 cylinder-head removal

• Valve and decarbonising service

• Head-gasket replacement

  

Typically suits:

  

• Engine models / drive models:

• D6-280A-A / B / C / D / E and D6-280I-A / B / C / D / E

• D6-300A-F / G, D6-300D-F / G and D6-300I-F / G

• D6-310A-A / B / C / D / E

• D6-310D-B / C / D / E and D6-310I-A / B / C / D / E

• D6-330A-B / C / D / E / F

• D6-330D-B / C / D / E / F and D6-330I-B / C / D / E / F

• D6-350A-A / B

• D6-370A-B / C / D / E / F

• D6-370D-A / B / C / D / E / F and D6-370I-A / B / C / D / E / F

• D6-400A-E / F / G

• D6-435D-A / C / D / E / F and D6-435I-A / C / D / E / F

  

• HP Range: Approximately 280HP - 435HP

• Engine Type: Volvo Penta D6 inline 6-cylinder common-rail marine diesel

• Year Range: Approximately 2003 - 2017 for the listed A-F generations

• Serial Range: Cylinder-head gasket thickness and production revision controlled; confirm engine model suffix and serial number

  

🔌 Function

  

The kit reseals combustion, coolant, oil, inlet and exhaust joints disturbed when the D6 cylinder head is removed.

  

Common signs replacement or overhaul is required:

  

• Cylinder-head gasket has failed

• Cooling system is pressurised by combustion gas

• Valves or cylinder head require overhaul

• Oil or coolant leaks from upper-engine joints

• Head has been removed and all disturbed seals must be renewed

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 1418.73 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1418.73 AUD | In stock |

## Images

- 21371111 Gasket Kit | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21371111-gasket-kit-genuine-volvo-penta)
> Updated: 2026-07-29