Wiseco K615M865 Forged Piston Kit 1988-1992 Celica All-Trac / 91-95 MR2 3S-GTE

Vehicle Fitment

• 1988-1992 Toyota Celica All-Trac / GT-Four (2.0 L 3S-GTE)
• 1993-1995 Toyota Celica (3S-GTE, 2.0 L I4)
• 1991-1995 Toyota MR2 Turbo (2.0 L 3S-GTE)

Features

• Forged 2618 aluminum for high strength and durability
• ArmorGlide® skirt coating to reduce friction and noise
• Dished crown design (-6.0 cc) for safe compression under boost
• Precision-machined ring grooves with anti-detonation design
• Forced pin-oiling for enhanced lubrication under high stress
• 22 mm wrist pin for strength and stability
• Designed for turbo or high-RPM performance applications
• Comes with a high-performance ring set (8650XX)

Specifications

• Bore: 86.50 mm
• Compression Height: 35.00 mm
• Piston Dish Volume: -6.0 cc
• Compression Ratio: ~9.0:1
• Wrist Pin Diameter: 22.00 mm
• Piston Material: 2618 Forged Aluminum
• Set Quantity: 4 Pistons
• Ring Set Included: 8650XX
• Nominal Piston Weight: ~363 g

Included Components

• 4x forged pistons
• 4x 22 mm wrist pins
• 1x 8650XX ring set
• Circlips / retaining locks

Product Description

The Wiseco K615M865 is a high-performance forged piston kit built for the Toyota 2.0 L 3S-GTE turbo engine, commonly found in Celica All-Trac / GT-Four and MR2 Turbo models. These pistons are made from strong 2618 aluminum to withstand the rigors of boosted and high-RPM operation.

With a dished crown of -6.0 cc, the pistons maintain a moderate compression ratio (~9.0:1), making them suitable for performance turbo applications. The ArmorGlide® coating on the skirts helps reduce friction and wear under load. Forced-pin oiling improves lubrication, and precision ring grooves with a high-performance ring set (8650XX) ensure excellent sealing and durability.

This kit is ideal for serious engine builds - whether you're rebuilding for racing or strengthening your turbo setup. Proper installation is essential: check ring gaps, verify clearances, and follow torque specifications to ensure reliability and enhanced performance.