# 23526770 Piston Ring Kit | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta standard-size piston-ring package for one cylinder of selected D8 generating-set and industrial engines. Six kits are required for a complete inline-six engine.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD840GE
-   Volvo Penta TAD841-43GE
-   Volvo Penta TAD552VE
-   Volvo Penta TAD853VE
-   Volvo Penta TAD851-53GE
-   Volvo Penta TAD880-82GE
-   Volvo Penta TAD880-84VE
-   Volvo Penta TAD580-83VE
-   Volvo Penta TAD570-72VE
-   Volvo Penta TAD550-51VE
-   Volvo Penta TAD540-42VE
-   Volvo Penta TAD840-43VE
-   Volvo Penta TAD850-52VE
-   Volvo Penta TAD840GE-B
-   Volvo Penta TADH880-82GE
-   Volvo Penta TADH880-84VE

-   **Engine Family:** TAD, TADH

## ⚙️ Key Features

-   Genuine Volvo Penta D8 piston-ring kit
-   Correct Volvo Penta part number 23526770
-   Complete three-ring package for one piston
-   Six kits are required for a complete engine
-   Piston and liner tolerance class must be confirmed before installation
-   Engine type: Volvo Penta D8 7.7L inline six-cylinder diesel

## 📋 Kit Contents

-   1 × upper compression ring - serviced under kit 23526770
-   1 × second compression ring - serviced under kit 23526770
-   1 × oil-control ring assembly - serviced under kit 23526770

## 🔌 Function

The compression rings seal combustion pressure and transfer heat to the liner, while the oil ring controls the lubricating-oil film on the cylinder wall.

## ⚠️ Common Signs of Failure

-   Blue smoke and high oil consumption
-   Broken, stuck or worn rings
-   Scored liner or damaged piston grooves
-   Incorrect ring set fitted to the piston revision

## 🛠️ Service Notes

-   Check the end gap of each ring in the bore it will run in and compare it with the figure in the workshop manual for your engine; a worn or rebored cylinder changes it
-   Fit the rings the right way up — where a face is marked or the section is stepped, that face goes towards the piston crown, and an oil control ring's expander must be fitted without overlapping its own ends
-   Use a ring expander rather than levering rings on with a screwdriver, and open them only as far as they need to go; cast rings snap and the groove edges nick easily
-   Stagger the ring gaps round the piston as the manual for your engine directs, so that no two gaps line up
-   Oil the rings, bore and compressor lightly, enter the bore with a ring compressor, and never force the piston in — if it resists, back it out and find out why

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   23526770 → Supersedes 23093056

### OEM / Related Numbers

-   23093056 earlier number superseded by this part
-   23526777 class-0 liner kit
-   23526778 class-1 liner kit
-   23526780 class-0 D5 liner kit
-   23526781 class-1 D5 liner kit

### Other-Brand OEM Numbers

-   VOE23526770

## 📦 Condition

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

## Details

- **Price:** 227.45 AUD
- **Vendor:** Volvo Penta
- **Type:** Service & Repair Kits
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 227.45 AUD | In stock |

## Images

- 23526770 Piston Ring Kit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/23526770-piston-ring-kit-genuine-volvo-penta)
> Updated: 2026-10-08