MAHLE 224-3732WR.020 Engine Piston Set with Rings (.020 Oversize)

The MAHLE 224-3732WR.020 Engine Piston Set is a premium OE-quality replacement piston assembly designed for diesel engine rebuilds and performance upgrades. This piston set features a .020" oversize bore specification, making it ideal for engines that require machining during rebuild operations.

OE-Quality Engineering:

MAHLE pistons are manufactured to original equipment standards, incorporating advanced design features that ensure reliable performance and longevity. The standard bore size is 107mm/4.210", with the .020 oversize bringing it to approximately 4.230". Each piston features compensated ring grooves that ensure proper ring loading and oil control, along with expansion-controlled designs that allow for tight fitting clearances to reduce engine noise, wear, and emissions while improving oil control.

Complete Installation Package:

• Pre-installed piston rings for convenient installation
• Wrist pins and retaining clips included
• Lightweight aluminum construction for reduced reciprocating mass
• Ring groove specifications: 3.0 x 2.0 x 3.0 mm
• Flat-top combustion chamber design

Superior Construction:

Cast from high-temperature resistant aluminum alloys, these pistons deliver exceptional strength and durability under demanding conditions. The precision-engineered design provides optimal sealing, reduced friction, and improved power delivery. MAHLE's expansion-controlled design technology minimizes piston-to-cylinder wall clearance, resulting in quieter operation and extended engine life.

About MAHLE:

MAHLE is one of the world's largest OE piston manufacturers, supplying components to major automotive manufacturers globally. Their pistons are trusted by professional engine builders and DIY mechanics alike for their consistent quality and precision fitment.

Note: This is a .020" oversize piston set intended for engines that have been bored oversize during machine shop preparation. Verify your engine's bore specifications before ordering.