Wiseco K683M82AP Forged Pistons for 97-02 Mitsubishi 4G93/4G94 1.8L 2.0L

Vehicle Fitment

• 1997-2002 Mitsubishi Mirage (1.8L I4, 4G93)
• 1997-2002 Mitsubishi Lancer (1.8L I4, 4G93)
• 2002-2005 Mitsubishi Lancer (2.0L I4, 4G94)

Fitment Notes

• Engine-specific forged piston set for Mitsubishi 4G93 and 4G94 naturally aspirated engines only.
• Requires machine work and professional engine assembly.
• Not compatible with turbocharged 4G63 or MIVEC engine variants.

Features

• Forged from high-strength 2618 aluminum alloy for superior durability.
• Designed for high-performance street and competition engine builds.
• Dish-style piston crown optimized for naturally aspirated compression ratios.
• Precision-machined ring lands for improved ring seal and longevity.
• ArmorGlide skirt coating reduces friction and cylinder wall wear.
• Engineered to handle increased RPM and cylinder pressures.
• Direct-fit design for Mitsubishi 4G93 and 4G94 engine platforms.
• Matched piston-to-pin geometry for proper balance and reliability.

Specifications

• Part Number: K683M82AP
• Bore Diameter: 82.00 mm
• Engine Type: Inline-4, Naturally Aspirated
• Material: 2618 forged aluminum
• Wrist Pin Diameter: 19 mm
• Piston Crown: Dish
• Application: Engine rebuild / performance upgrade

Included Components

• 4x Forged Pistons
• 4x Wrist Pins
• 4x Piston Ring Sets

Product Description

The Wiseco K683M82AP Forged Piston set is engineered for Mitsubishi 4G93 and 4G94 inline-four engines used in select Mirage and Lancer applications. Manufactured from high-strength 2618 forged aluminum, these pistons provide significantly greater durability than cast OEM pistons, making them ideal for high-RPM and performance-oriented engine builds.

Featuring a dish-style crown and precision-machined ring lands, this piston set is optimized for naturally aspirated configurations while maintaining reliable compression characteristics. ArmorGlide skirt coating helps reduce friction and wear, extending engine life under demanding conditions. This complete kit includes pistons, wrist pins, and rings, and is intended for professional engine rebuild applications where strength, consistency, and performance are critical.