Piston Kit for Mitsubishi 4A91T Engine (75mm Cylinder Diameter) — MW250875A
The piston assembly for the Mitsubishi 4A91T (1.5L turbocharged) engine features a standard bore of 75mm and is constructed from ZL109 aluminum alloy, having been specifically engineered for high-performance turbocharged applications. Its key technical specifications include a piston ring configuration of 1.2mm–1.2mm–2.0mm, a piston pin diameter ranging from 14mm to 18mm, and a typical compression ratio of approximately 10.5:1; the entire assembly has been meticulously designed to ensure exceptional durability.
Description
Piston Assembly Technical Specifications:
Engine Model: 1.5L Inline-4 Turbocharged (4A91T) | Bore: 75 mm (Standard Specification)
Material: ZL109 Aluminum Alloy
Piston Ring Configuration:
First Ring: 1.2 mm (Gas Ring / Compression Ring)
Second Ring: 1.2 mm (Scraper Ring / Oil Control Ring)
Third Ring: 2.0 mm (Oil Ring, Spiral Design) | Piston Pin (Wrist Pin): Diameter approx. 14 mm – 18 mm
Assembly Components: Piston, Piston Pin, Circlips (Retaining Rings), and Piston Rings
Compression Ratio: Typically 10.5:1
