The Volvo Penta 872563 piston ring is a genuine OEM sealing ring used within Volvo Penta engine and driveline assemblies, designed to maintain compression and sealing between piston and cylinder or within specific gear-set piston components. This ring ensures proper pressure retention, efficient combustion (where applicable), and controlled oil distribution.

Manufactured to exact Volvo Penta tolerances, it provides precise fitment and reliable sealing performance under high temperature and load conditions typical in marine environments.

Key Features

Genuine Volvo Penta OEM piston ring
Maintains compression and sealing integrity
Supports proper oil control and pressure retention
Precision-machined for exact OEM fit
High-temperature, wear-resistant construction
Sold individually (not a full ring set)

Engine / Drive Compatibility

Used in specific Volvo Penta applications including:

Volvo Penta diesel engines such as:
- AD31 / AD31A / AD31XD
- TAMD31 / TAMD42 series
- KAD42 / KAMD42
Volvo Penta propulsion systems:
- DPI-A
- IPS series (various models)

Also referenced in gear set / piston assemblies depending on application
Typically part of a larger piston or gear component assembly

Serial Number Fitment Notice

This piston ring is highly application-specific. Always confirm using engine model and serial number before ordering incorrect sizing or type will result in improper sealing and engine damage.

When This Part Needs Replacement

Loss of compression or power
Excessive oil consumption
Blow-by or crankcase pressure issues
Engine rebuild or overhaul
Visible wear, scoring, or ring fatigue

Installation Notes

Verify correct ring orientation and gap placement
Measure cylinder and ring clearance before install
Lubricate during assembly
Replace as part of full piston/ring service when possible
Follow OEM torque and break-in procedures

Alternate / Superseded / Cross-Reference Part Numbers

Volvo Penta: 872563
Related components in assembly:
- 872565 (O-ring)
- 872570 (thrust washer)
- 872794 (disc spring)

Parts Desk Insight

This is not a universal piston ring Volvo uses it in specific piston/gear assemblies, not always traditional engine pistons. Always verify the exact application. If youre this deep into a rebuild, strongly recommend replacing all associated seals and wear components at the same time.