21010337 Piston Ring Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta standard-size piston ring set for one piston in selected 16.1-litre D16 diesel engines. The matched compression and oil-control rings restore combustion sealing, oil control and heat transfer after piston or cylinder-liner service.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1650VE

• Engine Family: TAD
• Year Range: Approximately early 2000s onward

⚙️ Key Features

• Genuine Volvo Penta standard-size ring set
• 144mm nominal cylinder bore
• One kit services one piston
• Designed for D16 combustion pressures and liner finish
• Engine type: Volvo Penta D16 16.1-litre inline 6-cylinder diesel

📋 Kit Contents

• 1 x complete piston ring set for one piston - Volvo Penta 21010337
• 1 x top compression ring - supplied only within kit 21010337
• 1 x second compression ring - supplied only within kit 21010337
• 1 x oil-control ring assembly - supplied only within kit 21010337

🔌 Function

The rings seal combustion pressure above the piston, regulate the lubricating-oil film on the cylinder wall and conduct piston heat into the liner.

⚠️ Common Signs of Failure

• Low compression or excessive crankcase blow-by
• High engine-oil consumption
• Blue exhaust smoke
• Poor starting or reduced power
• Ring lands, piston or liner are being renewed during overhaul

🛠️ 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

• 21010337 cross-references earlier Volvo number 20520658 where specified

OEM / Related Numbers

• 20520658 related reference
• 3589667 related piston / liner component
• 3886753 related piston / liner component
• 8131233 related piston grade references
• 8131234 related piston grade references
• 8131235 related piston grade references

Other-Brand OEM Numbers

• Mahle: 038 90 N0
• Kolbenschmidt: 800117910000
• Kolbenschmidt: 7060275002

Aftermarket / Verified Equivalents

• NE: 120059003400
• DT Spare Parts: 2.90126
• Sampa: 038.314
• SRP: PRK-10337

📦 Condition

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