Wiseco 4874M06800 Forged Piston Kit High Compression - 68mm 12.9 1 4-Stroke

The Wiseco 4874M06800 is a high-performance forged piston kit featuring a 68.00mm bore diameter and an aggressive 12.9:1 compression ratio with a domed piston design. Engineered, forged, and machined in the USA at Wiseco's facility in Mentor, OH, this piston kit is built to withstand the demands of high-performance 4-stroke engines.

Key Features:

• Forged from high-silicon, low-expansion aluminum alloy for superior strength, reduced weight, improved heat transfer, and extended service life
• Dedicated forging design optimizes the strength-to-weight ratio for maximum performance
• ArmorGlide moly-coated skirt reduces friction and improves scuff resistance
• Horizontal slot pin oiling for improved lubrication and reduced wrist pin friction
• Pressure seal groove for maximum ring seal and combustion efficiency
• Diamond-turned CNC finish guarantees precision sizing with no variation
• Compatible with all cylinder bore compositions, including nikasil, iron, and sleeve applications
• Sold individually — each kit includes piston, rings (ring set 2677XA), wrist pin, and circlips

Compared to cast pistons, Wiseco's forged construction features condensed, aligned grain structure that delivers higher mechanical properties and greater resistance to impact and fatigue — critical for high-compression performance applications. Each design is validated through in-house dyno testing to deliver the power and reliability demanded by serious riders and race teams.

Specifications:

• Bore Diameter: 68.00mm
• Compression Ratio: 12.9:1
• Piston Style: Domed
• Engine Type: 4-Stroke, 4-Valve
• Displacement: 636cc
• MPN: 4874M06800 | Ring Set: 2677XA