20793531 Set | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta 108mm Piston Ring Set - Part Number: 20793531

Application-specific 108mm piston ring set used in the piston, connecting-rod and crankshaft assembly on the listed Volvo Penta engines. Seals combustion pressure, controls lubricating oil and transfers piston heat into the 108 mm cylinder liner.

⚙️ Key Features

• Genuine Volvo Penta 108mm piston ring set

• Direct service replacement for part number 20793531

• Designed for the piston, connecting-rod and crankshaft assembly

• Seals combustion pressure, controls lubricating oil and transfers piston heat into the 108 mm cylinder liner

• One-cylinder piston-ring set for a 108mm cylinder bore

📋 Set Contents

• Top compression ring - serviced within Piston Ring Set Part Number 20793531

• Second compression ring - serviced within Piston Ring Set Part Number 20793531

• Oil-control ring assembly - serviced within Piston Ring Set Part Number 20793531

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20793531 (Volvo Penta piston-ring set reference)

• 21299547 / 7420793531 / Deutz 04200432 / 04900839 (cross-reference numbers)

OEM / Related Numbers:

• VOE20793531 / 7420793531 - Volvo and Renault prefixed formats

• 108mm - cylinder-bore specification

• 20585982 - connecting rod

• 21191452 - later connecting-rod reference

• 11700325 - small-end bushing

• 11700326 - connecting-rod screws

• 20405577 - piston pin

• 20766790 - standard big-end bearing

• 20717211 - 0.25mm undersize big-end bearing

• 20565188 - 0.50mm undersize big-end bearing

• 20793531 - piston-ring set

• 20793619 - piston-cooling oil nozzle

• 20790423 / 20790428 - oversize big-end bearing kits

Aftermarket / Verified Equivalents:

• MAHLE: 099 RS 00127 0N0

• Kolbenschmidt: 800071210000

• Freccia: FR10-516600

🚤 Compatibility

Commonly used on:

• Volvo Penta D7E/TAD560/TAD750/TAD760-series crank mechanism

Typically suits:

• Engine models:

• TAD560VE; TAD561VE; TAD734GE; TAD750GE

• TAD752GE; TAD753GE; TAD754GE; TAD750VE

• TAD760VE; TAD761VE; TAD762VE; TAD763VE

• TAD764VE; TAD765VE

• HP Range: Approximately 180HP - 320HP

• Engine Type: 7-litre inline-six turbocharged industrial diesel

• Year Range: Approximately 2004 - 2016

• Serial / Production Notes: Connecting rod 20793636 is documented through engine serial 10564690; later production from serial 10564691 uses 21191452.

🔌 Function

Seals combustion pressure, controls lubricating oil and transfers piston heat into the 108 mm cylinder liner.

Common signs of failure:

• Excessive crankcase blow-by

• High engine-oil consumption or blue exhaust smoke

• Low compression, difficult starting or reduced power

• Heavy carbon deposits or stuck rings

• Cylinder glazing, scoring or poor leak-down results

Service / Installation Notes:

• The set services one 108mm cylinder; confirm the required engine quantity before ordering.

• Measure liner bore, ring end gap and groove clearance and stagger the ring gaps during assembly.

• This set services one cylinder; order the correct number of sets for the engine configuration.

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging