Mahle

WRX209927P10

Mahle Pistons PowerPak Plus Subuaru WRX 2.5L STI, FORRESTER, LEGACY - Part # WRX209927P10

Pins

2618 Aluminum Alloy
100% Genuine Mahle Product
Comes complete with pistons, pins and rings to simplify the piston purchasing process

Forged piston for performance applications; Fully-machined crown; Grafal anti-Friction coating on skirts*; Phosphate-coated to reduce micro-welding and pin galling**; Pin bores binished on CNC boring equipment; Deburred; High strength, light weight steel pins; Race proven round wire locks; Low drag ring pak; Light weight slipper kirt forgings; 2618 Aluminum Alloy; Hard Anodized Top ring groove for Extreme Duty Applications | * MAHLE's GRAFAL® skirt coating reduces drag, scuffing, friction and cylinder bore wear; reduces piston noise.; ** Phosphate coating provides the grey appearance to the MAHLE piston. This dry lubricant coating (not to be confused with a thermal film coating) provides a lubricant film in the pin bores and ring grooves until the oiling system of the engine reaches operating pressure; particularly useful during the initial start-up or break-in of engines to protect against galling and microwelding. The piston crown is still machineable. | Part Number: WRX209927P10; Application: Subuaru WRX 2.5L STI, FORRESTER, LEGACY; Bore: 99.75mm; Stroke: 79.0mm; Rod: 130.4mm; Pin Diameter: 23mm; Compression Height: 30.7mm; Crown Volume: -22cc; Weight (Grams): 401; Compression Ratio (56cc): 9.0:1

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