Wiseco 6582M86 Pro Tru Sport Compact Forged Piston 86mm Bore with Rings & Pins

The Wiseco 6582M86 is a Pro Tru Sport Compact Series forged replacement piston with an 86mm bore diameter, sold as an individual unit complete with rings and pins. Engineered for sport compact engine builders who demand forged-piston strength without the cost of a full custom billet, this piston delivers the precision and durability Wiseco is renowned for across professional motorsport.

Key Features:

• Forged aluminum construction — produced using dedicated near-net-shape forgings specific to the final piston profile, resulting in a stronger and lighter piston than cast or hypereutectic alternatives
• American made — forged and CNC-machined in Mentor, Ohio using state-of-the-art forging presses and precision CNC equipment
• Plasma moly ring package included — pre-gapped 1/16", 1/16", 3/16" ring set provides excellent cylinder seal, reduced friction, and extended service life
• Rings and wrist pins included — everything needed for a complete piston replacement; recommended ring set cross-reference: 8600XX
• Sport compact crown and valve pocket design — crown thickness and ring lands engineered to handle power adders including turbochargers, superchargers, and nitrous oxide
• ArmorGlide skirt coating — Wiseco's proprietary friction-reducing bonded skirt treatment promotes wear reduction and tighter piston-to-wall clearances for quieter, more efficient operation
• Multiple compression ratio options available — Pro Tru Sport Compact pistons are offered in a variety of dome volumes, allowing the engine builder to dial in the exact compression ratio for their build

The Wiseco Pro Tru Sport Compact line bridges the gap between OEM replacement and full race-spec components, making it an ideal choice for performance street builds, track-day cars, and engine rebuilds requiring improved strength over factory pistons. The 6582M86 is sold as a single piston, making it a convenient replacement for damaged or worn pistons in an existing set.