20460011 Piston Ring Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta standard-size three-ring piston set for selected 98 mm bore D6-series industrial engines. One kit services one piston.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD620VE

• Engine Family: TAD
• HP Range: Approximately 260 HP
• Year Range: Approximately 2002-2012

⚙️ Key Features

• Standard 98 mm bore piston-ring set
• Three-ring compression and oil-control arrangement
• Used on Volvo Penta TAD620VE and TAD660VE
• One kit required per cylinder
• Engine type: 4-cylinder and 6-cylinder turbocharged industrial diesel, 98 mm bore

📋 Kit Contents

• 1 x top compression ring, 3.0 mm - supplied within kit 20460011; no separate Volvo Penta service number
• 1 x second compression ring, 2.0 mm - supplied within kit 20460011; no separate Volvo Penta service number
• 1 x oil-control ring, 3.0 mm - supplied within kit 20460011; no separate Volvo Penta service number

🔌 Function

Seals combustion pressure above the piston, controls oil on the cylinder wall and transfers piston heat into the liner.

⚠️ Common Signs of Failure

• Excessive crankcase blow-by
• Blue exhaust smoke and high oil consumption
• Reduced power or poor cylinder balance
• Broken, stuck or heavily worn piston rings

🛠️ 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

• 20799069 related Volvo BM reference
• 21771864 later related Volvo reference

OEM / Related Numbers

• 20799069 related reference
• 21771864 related reference
• 877458 related cylinder-liner kit
• 20460009 piston pin
• 21159226 piston-pin retaining ring

Other-Brand OEM Numbers

• Deutz 04250258
• Deutz 04250659
• MAHLE: 101 88 N0 / 10188N0
• GOETZE: 08-127800-00
• Kolbenschmidt: 800055210000

Aftermarket / Verified Equivalents

• Wilmink Group: PRK-011
• SLP: PRK-011

📦 Condition

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