# 23558933 Cylinder Liner Kit | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta matched piston and 131mm cylinder-liner package for one cylinder of TAD1250VE, TAD1251VE and TAD1252VE engines. Six kits are required for a complete inline-six engine.

## ⚙️ Key Features

-   Genuine Volvo Penta D12 one-cylinder piston and liner kit
-   Correct Volvo Penta part number 23558933
-   Nominal cylinder bore 131mm
-   Six kits are required for a complete engine
-   Engine type: Volvo Penta D12 12.1L inline six-cylinder industrial diesel

## 📋 Kit Contents

-   1 × matched standard piston - serviced within kit 23558933
-   1 × 131mm cylinder liner - serviced within kit 23558933
-   1 × matched piston-ring set - serviced within kit 23558933
-   1 × cylinder-liner sealing-ring package - serviced within kit 23558933
-   1 × gudgeon pin and retaining components - supplied within the OEM kit where specified by engine build

## 🔌 Function

The liner provides the replaceable cylinder bore, while the piston and rings seal combustion and transmit force to the connecting rod. The liner seals prevent coolant and crankcase-oil cross-contamination.

## ⚠️ Common Signs of Failure

-   Scored, cracked or cavitated liner
-   Piston crown, skirt or ring-land damage
-   Coolant leakage past the liner seals
-   Liner protrusion or piston clearance is outside specification

## 🛠️ 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

-   23558933 → Supersedes 20820358

### OEM / Related Numbers

-   20820358 earlier number superseded by this part
-   20515059 related reference
-   20531592 related reference
-   276921 related reference
-   85101452 related reference
-   85103175 related reference

### Other-Brand OEM Numbers

-   VOE23558933
-   Kolbenschmidt: 40338960
-   Kolbenschmidt components: piston 40338600, liner 89593110 and liner-seal set 50006667
-   MAHLE: 0385690

### Aftermarket / Verified Equivalents

-   ENGITECH: ENT056020 STD
-   ENGITECH components: piston ENT054000 STD, ring set ENT044019 STD and liner 51-06083-000
-   OE Germany: 030329D12000
-   MEC-DIESEL: MEC793200
-   Olsson Parts: 55400
-   NÜRAL: 89-123200-10

## 📦 Condition

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

## Details

- **Price:** 1425.7 AUD
- **Vendor:** Volvo Penta
- **Type:** Service & Repair Kits
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1425.70 AUD | In stock |

## Images

- 23558933 Cylinder Liner Kit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/23558933-cylinder-liner-kit-genuine-volvo-penta)
> Updated: 2026-10-10