21595554 Cylinder Head Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D9A2A / D9A2C Cylinder Head Kit, High-Temperature Exhaust Specification - Part Number: 21595554

A genuine complete D9 cylinder-head assembly using the valve-seat and exhaust-valve specification associated with remanufactured head 3803886 and exchange head 3801426.

⚙️ Key Features

• Complete assembled cylinder head

• For D9A2A and D9A2C engine family

• Includes camshaft bearing housings, injector sleeves, guides and valve hardware

• Different exhaust seat / valve specification from kit 21595555

📋 Kit Contents

• Front / end bearing housing - 3161082

• Camshaft bearing housings No. 1-6 - 3161079

• Locating pin - 422426

• Locating pin - 950542

• Expansion plug - 24426721

• Flange screw - 20412482

• Flange screw - 975105

• Expansion plug - 24426722

• Valve guides - 20905400, quantity for the complete head

• Injector sleeve kit - 21351717, quantity for six injectors

• Injector sleeve - 20981856

• Injector-sleeve O-ring - 20536487

• Injector-sleeve washer - 21261987

• Valve stem seals - 859171, quantity for all valves

• Valve springs - 21310068 and 3183211 as specified

• Valve spring washers - 20510743

• Valve cotters - 20510747

• Cylinder-head casting and installed seats / guides supplied as the complete kit

• Intake valve seats - 20555102

• Exhaust valve seats - 20555104

• Inlet valves - 3817674, replacing single-groove 3836280 with the matching cotter and washer

• Exhaust valves - 3818985, replacing single-groove 3836281

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21595554 current cylinder-head-kit reference

OEM / Related Numbers:

• 3803886 - related remanufactured head

• 3801426 - related exchange head

Aftermarket / Verified Equivalents:

• No verified complete aftermarket equivalent

• AMC / aftermarket bare-head offerings require confirmation of valve-seat material, injector sleeve and camshaft-bearing specification

🚤 Compatibility

Confirmed for Volvo Penta D9A2A and D9A2C engines using the 3803886 / 3801426 head specification.

• HP Range: approximately 500HP-575HP marine; industrial ratings vary

• Year Range: approximately 2000s

• Serial Range: engine serial, emission specification and existing head number controlled

🔌 Function

The head seals the cylinders and carries the valves, injector sleeves and overhead camshaft bearing supports.

Common signs of failure:

• Coolant or compression leakage

• Valve-seat damage

• Cracked head

• Injector-sleeve leakage

• Camshaft bearing housing damage

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging