Wiseco K615M865AP Forged Piston Kit for 1989-1995 Toyota Celica / MR2 3S-GTE

Vehicle Fitment

• 1989-1995 Toyota Celica GT-Four / All-Trac (2.0 L 3S-GTE)
• 1990-1995 Toyota MR2 Turbo (2.0 L 3S-GTE)

Features

• Forged 2618 aluminum for maximum strength and resilience
• ArmorPlating (AP) coating for reduced friction and wear
• Dished crown (-6.0 cc) for lower compression, ideal for turbo use
• Strutted forging design to improve rigidity and durability
• Fully machined crown and ring grooves for high-performance sealing
• Forced pin-oiling to ensure excellent lubrication under load
• Designed to handle high RPM and boost pressures
• Includes high-performance ring set

Specifications

• Bore: 86.50 mm
• Compression Height: 35.00 mm
• Piston Dish: -6.0 cc
• Compression Ratio: ~8.96:1
• Wrist Pin Diameter: 22 mm
• Piston Material: 2618 forged aluminum
• Ring Set Included: 8650XX
• Set Quantity: 4 pistons
• Nominal Piston Weight: ~363 g

Included Components

• 4x forged pistons
• 4x 22 mm wrist pins
• 1x high-performance ring set (8650XX)
• Circlips / wrist-pin retainers

Product Description

The Wiseco K615M865AP is a pro-series, forged piston kit designed for Toyota's turbocharged 3S-GTE 2.0 L engine, used in Celica GT-Four / All-Trac and MR2 Turbo models from 1989 to 1995. The dished crown (-6.0 cc) maintains a lower compression ratio (~8.96:1), making it ideal for high-boost applications while providing strength and reliability.

Made from 2618 aluminum, these pistons are highly durable and feature ArmorPlating® coating to reduce friction and wear. The strutted-forge design enhances rigidity under high stress, and forced pin-oiling ensures wrist pins stay properly lubricated during boosted or high-RPM operation. Precision ring grooves and the included high-performance ring set guarantee excellent sealing and long life.

This kit is perfect for builders pursuing performance or race-oriented 3S-GTE engine builds. Proper installation is essential: verify clearances, torque correctly, and confirm ring gaps to ensure optimal performance and longevity under high-stress conditions.