Wiseco 6651M86 Forged Piston Kit Mitsubishi 4B11T 86mm Bore Spherical Dish

The Wiseco 6651M86 is a forged performance piston kit designed for the Mitsubishi 4B11-T turbocharged engine with a standard 86mm bore. Featuring a spherical dish crown design, this piston is optimized for forced-induction applications where a reduced compression ratio is essential for reliable high-boost performance.

Key Features:

• Forged aluminum construction — manufactured from high-strength aluminum alloy for superior durability under high heat and pressure
• Spherical dish crown — reduces effective compression ratio to complement turbocharger or supercharger setups
• 86mm bore diameter — standard bore size for the Mitsubishi 4B11-T engine
• CNC-machined to tight tolerances — ensures consistent sizing, proper ring seal, and minimal blowby
• ArmorGlide® skirt coating — reduces friction, resists scuffing, and promotes quieter operation
• Offset wrist pin — reduces piston slap and noise for smoother operation
• Pro Tru Sport Compact Series — engineered specifically for high-performance street and track applications

The Wiseco 6651M86 piston kit includes pistons, wrist pins, and ring sets, giving engine builders everything needed for a complete bottom-end rebuild. Wiseco has been a trusted name in forged piston technology for over 80 years, delivering race-proven durability for performance enthusiasts worldwide.