21508875 Overhaul Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D13 Cylinder Head Overhaul Kit - Part Number: 21508875

A genuine Volvo Penta cylinder-head rebuild package for D13B and D13C engines through engine serial number 2013429710. The kit renews all six intake valves, all six exhaust valves, valve seats, guides, injector sleeves, seals and retaining cotters required for a complete twelve-valve cylinder-head overhaul.

Kit Contents:

• 6 × exhaust valve seat - 20530103

• 6 × intake valve seat - 20740804

• 12 × valve guide - 20904074

• 6 × injector sleeve - 21274700

• 6 × injector-sleeve O-ring - 20536487

• 6 × injector copper washer - 21261987

• 6 × inlet valve - 20740798

• 6 × exhaust valve - 20768519

• 24 × valve cotter - 20510747

• 12 × valve stem seal - 20864662

• Cylinder-head gasket / service gasket - 11996

• Associated service gasket - 18665 where supplied for the engine configuration

⚙️ Key Features

• Genuine Volvo Penta complete D13 cylinder-head overhaul kit

• Correct Volvo Penta part number 21508875

• Includes valves, seats, guides, injector sleeves, seals and cotters

• Configured for six-cylinder D13 engines through ESN 2013429710

• Aftermarket cylinder-head rebuild kits are available

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21508875 current cylinder-head overhaul-kit reference for ESN through 2013429710

OEM / Related Numbers:

• 21508875

• VOE21508875

• 20530103 exhaust seat

• 20740804 intake seat

• 20904074 valve guide

• 21274700 injector sleeve

• 20740798 inlet valve

• 20768519 exhaust valve

• 20510747 cotter

• 20864662 valve seal

Aftermarket / Verified Equivalents:

• MK Parts: 18V08875

• VolvoKits: HRK-8875

• SLP: application-matched D13 cylinder-head repair kit

• Dumper Depot: HRK-8875

🚤 Compatibility

Commonly used on:

• Volvo Penta D13B and D13C cylinder-head rebuilding

• Marine propulsion, marine auxiliary and industrial D13 engines

Typically suits:

• Engine models:

• D13B-A MP, D13B-B MP, D13B-C MP and D13B-D MP

• D13B-E MG, D13B-E MH and D13B-F MG

• D13B-G MP, D13B-H MP, D13B-J MP, D13B-K MP and D13B-N MH

• D13C1-A MG, D13C1-A MH and D13C1-A MP

• D13C2-A MG, D13C2-A MH and D13C2-A MP

• D13C3-A MP, D13C4-A MP, D13C5-A MP and D13C6-A MP

• HP Range: Approximately 400HP - 1,000HP, dependent on D13 rating

• Engine Type: Volvo Penta D13 12.8L inline six-cylinder common-rail diesel

• Year Range: Approximately late 2000s - mid-2010s

• Serial Range: Engine serial number 2013429710 and below

🔌 Function

The kit restores the valve and injector-sleeve sealing surfaces in the cylinder head, returning compression, airflow, valve control and injector sealing to overhaul specification.

Common signs of failure:

• Low compression, burned valves or damaged valve seats

• Excessive valve-guide clearance or oil consumption

• Coolant or combustion leakage around injector sleeves

• Valve-stem seals hardened or leaking

• Cylinder head cannot meet pressure, vacuum or valve-seat tests

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging