Wiseco WK1066 Pro-Lite 66mm Forged Piston Kit for SL650 Kawasaki PWC

The Wiseco WK1066 is a Pro-Lite series forged piston kit designed for the Kawasaki SL650 personal watercraft, featuring a 66.00mm bore diameter. Built from high-silicon, low-expansion aluminum alloy, this piston delivers superior strength, reduced weight, improved heat transfer, and extended service life compared to OEM cast pistons.

Pro-Lite Series Features:

• Dedicated forging — race-proven design utilizing aerospace-grade aluminum alloy for an optimized strength-to-weight ratio
• CNC diamond-turned finish — precision machining ensures consistent sizing with zero variation for reliable fitment across all cylinder bore types
• Horizontal slot-pin oiling — reduces friction and provides scuff resistance, along with a pressure seal groove for maximum ring seal
• Compatible bore compositions — installs confidently in cast iron, chrome, nikasil, and boron composite cylinder bores
• Oversize availability — wide range of oversizes available to extend the life of cast iron lined cylinders; chrome, nikasil, and boron composite cylinders can be resleeved to accept Wiseco oversizes

Kit Contents:

• 1x Pro-Lite forged piston (66.00mm)
• Ring set — 2598CD (66.00mm)
• Wrist pin — S511 (18mm x 2.244", non-chromed)
• Round wire pin locks — CW18 (18mm, pair)

The Wiseco WK1066 Pro-Lite piston kit is an ideal choice for PWC rebuilds and performance upgrades, backed by Wiseco's decades of experience supplying forged pistons to both competitive racers and recreational riders.