757M08500 Wiseco Piston Kit .040 for Yamaha Wave Runner XL1200 1998 85.00 mm

.040 Piston Kit for Yamaha Wave Runner XL1200

This Wiseco .040 oversize piston kit is built for the 1998 Yamaha Wave Runner XL1200, with an 85.00 mm bore and OEM cross-reference 757M08500 for a precise fit.

Overview

This .040 piston kit for Yamaha Wave Runner XL1200 delivers a proven top-end rebuild solution for a worn or scored cylinder. The 85.00 mm oversize piston restores compression and smooths out the powerband on the water. It is a direct-fit choice for riders and shops rebuilding the 1998 XL1200 engine.

Built For Performance

• 85.00 mm oversize bore for .040 over stock cylinder
• Wiseco forged construction for strength under load
• OEM cross-reference 757M08500 for confident fitment
• Ring set included for a complete top-end job
• Wrist pin and clips included where specified by kit

Fits These Machines

• for Yamaha Wave Runner XL1200 1998

On-The-Job Use

• Top-end rebuilds on the 1998 XL1200 engine
• Bores that require .040 over sizing
• Marine engine shops and DIY rebuilds
• Restoring compression after cylinder wear

Specs At A Glance

Good To Know

Q: Does this kit fit a stock cylinder? A: It is a .040 oversize kit, so the cylinder must be bored to 85.00 mm before installation. Confirm your bore size before ordering.

Q: Is this an original Yamaha part? A: No, this is a Wiseco piston kit made to fit the 1998 Yamaha Wave Runner XL1200. It is not an original Yamaha product.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.