22734313 Piston Ring Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta 0.50mm oversize piston-ring set for one cylinder of the Deutz-derived TAD420VE / D4D / D4E engine family. The ring set is matched to a 101.5mm oversize bore and piston. Four kits are required for a complete four-cylinder TAD420VE.

🚤 Compatibility

Typically suits:

• Volvo Penta TD420VE
• Volvo Penta TAD420VE

• Engine Family: TD, TAD
• Year Range: Approximately late 1990s - 2010s

⚙️ Key Features

• Genuine Volvo Penta 0.50mm oversize piston-ring kit
• Correct current Volvo Penta part number 22734313
• Nominal 101.5mm oversize bore application
• Complete ring set for one piston
• Engine type: Volvo Penta / Volvo / Deutz 2012-family turbocharged diesel

📋 Kit Contents

• 1 × upper compression ring - serviced under 22734313
• 1 × lower compression ring - serviced under 22734313
• 1 × oil-control ring assembly - serviced under 22734313

🔌 Function

The compression rings seal combustion pressure, while the oil-control ring meters the lubricating-oil film on the cylinder wall.

⚠️ Common Signs of Failure

• Blue smoke and high oil consumption
• Broken or seized piston rings
• Cylinder bore or piston ring grooves worn beyond specification
• Standard rings incorrectly installed in an oversize bore

🛠️ 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

• 22734313 → Supersedes 20840002

OEM / Related Numbers

• 20840002 earlier number superseded by this part
• 21252233 related standard piston-ring kit
• 20460013 related piston
• 20460009 related gudgeon pin
• 21159226 related snap ring

Other-Brand OEM Numbers

• VOE22734313
• Kolbenschmidt: 800057310050
• Goetze / MAHLE: 10191N2 application cross-reference

Aftermarket / Verified Equivalents

• ENGITECH: ENT047023 050
• Perfect Circle: 08-127907-00
• SRP: PRK-34313
• Dumper Depot: PRK-002

📦 Condition

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