Wiseco PK1006 Top End Piston Kit for Suzuki Quad - 66.5mm LT230 1985-1994

The Wiseco PK1006 is a complete top end piston kit designed for the 1985–1994 Suzuki LT230 Quad. Featuring a 66.50mm bore (+0.50mm oversize) and a 10.25:1 compression ratio, this kit delivers everything needed for a professional-quality top end rebuild or overbore service in a single package.

Kit Includes:

• Forged aluminum piston (4382M series)
• Ring set (2618XD)
• 16mm wrist pin (non-chromed, 2.299" length)
• Round wire pin locks / circlips (16mm pair)
• Top end gasket kit (W5066)

Key Specifications:

• Bore – Standard: 66.00mm
• Bore – Actual: 66.50mm (+0.50mm oversize)
• Stroke: 67.00mm
• Displacement: 233cc
• Compression Ratio: 10.25:1
• Note: Cylinder boring is required prior to installation

Why Wiseco Forged Pistons?

• Forged from high-strength aluminum alloy for superior toughness vs. cast pistons
• Condensed grain structure aligned to part features for improved mechanical properties and fatigue resistance
• Optimized strength-to-weight ratio for maximum ATV performance
• Armor Glide skirt coating reduces friction and minimizes scuffing
• Race-ready dome finish with smooth edges for improved combustion flow
• Horizontal slot pin oiling and pressure seal groove for maximum ring seal
• All pistons are forged and manufactured in the USA

Wiseco PK kits are a trusted choice for ATV top end rebuilds, providing race-proven components in one convenient package. Note: Wiseco pistons must only be used with Wiseco rings — ring types are not interchangeable.