23782710 Cylinder Liner Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta tolerance-class 0 cylinder-liner service package for D8A marine engines. One kit services one cylinder and must be matched to the engine's measured liner class and cylinder-block specification.

🚤 Compatibility

Typically suits:

• Volvo Penta D8A2-A MP
• Volvo Penta D8A5-A MH
• Volvo Penta D8A6-A MH
• Volvo Penta D8A5-A MG
• Volvo Penta D8A6-A MG
• Volvo Penta D8A4-A MP
• Volvo Penta D8A1-A MP
• Volvo Penta D8A3-A MP

• Engine Family: D
• Year Range: Approximately 2017 onward

⚙️ Key Features

• Tolerance class 0 cylinder-liner service package
• One kit required per cylinder
• Current replacement for earlier liner kit 23228685
• Used across D8A MP, MG and MH marine ratings
• Tolerance class must be confirmed before installation
• Engine type: Volvo Penta D8A inline 6-cylinder common-rail marine diesel

📋 Kit Contents

• 1 x tolerance-class 0 cylinder-liner service assembly 23782710
• Any sealing elements packaged with the factory liner are serviced under the complete kit number and are not separately exposed in the public kit breakdown
• Gudgeon pin 22960905, lock rings 21230282 and piston ring kit 22720412 are adjacent service parts and are not confirmed as included

🔌 Function

Provides the precision cylinder running surface for the piston and rings, contains combustion pressure and transfers heat into the cylinder-block cooling jacket.

⚠️ Common Signs of Failure

• Low compression or excessive crankcase blow-by
• High oil consumption or blue exhaust smoke
• Cylinder scoring, wear, cavitation or corrosion
• Coolant enters the crankcase around the liner area
• Liner dimensions or protrusion fall outside the workshop limit

🛠️ Service Notes

• Clean the liner seats and the O-ring grooves in the block thoroughly and check them for corrosion pitting or fretting before any liner goes in — a poor seat is the usual cause of a repeat failure
• Measure liner protrusion above the block face dry, without the O-rings fitted, taking readings at several points around each liner and comparing them with the figures in the workshop manual for your engine — and do not try to correct insufficient protrusion by stacking extra rings or shims under the liner flange
• Keep each liner with its own bore position once measured, and fit the O-rings in the order and orientation specified, lubricated as the manual directs
• Fit the liners with an appropriate press or drawing arrangement so they go in square, never by hammering
• Protect the finished bores from rust and knocks until the pistons go in, and never run a new liner against worn or reused rings

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 23782710 → Supersedes 23228685 → Supersedes 22720410

OEM / Related Numbers

• 23228685 earlier number superseded by this part
• 22720410 earlier number superseded by this part
• 23782711 tolerance class 1 alternative
• 22960905 related gudgeon pin - ordered separately
• 21230282 related piston-pin lock ring - ordered separately
• 22720412 related piston ring kit - ordered separately
• 23574167-23574171 related graded big-end bearing kits

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging