Namura .010 Over Bore Piston Kit for Sea-Doo 580 PWC 1990-1996 76.25mm SEE LIST

.010 Over Bore Piston Kit for Sea-Doo

This .010 over bore piston kit fits Sea-Doo 580 PWC models from 1990 to 1996, offering a 76.25mm piston to restore compression and extend engine life. OEM cross-reference numbers are included in the fitment list for easy identification.

Overview

This .010 over bore piston kit for Sea-Doo 580 PWC delivers a precise replacement for worn cylinders, helping you regain lost power and reliability. Designed as a direct-fit upgrade, it includes a piston and rings to simplify your engine rebuild.

Built For Performance

• Precision-machined 76.25mm piston for accurate fitment
• High-strength alloy construction resists thermal stress
• Low-tension rings reduce friction and improve fuel economy
• Skirt coating provides anti-scuff protection during break-in
• Strict quality control ensures consistent weight and dimensions

Fits These Machines

• for Sea-Doo 580 PWC (1990-1996)

On-The-Job Use

• Rebuilding Sea-Doo 580 engines after cylinder wear or scuffing
• Replacing piston due to loss of compression or piston slap
• Restoring performance for recreational watercraft use
• Engine refresh projects requiring a .010 over bore

Specs At A Glance

Good To Know

Q: Can I install this piston kit without professional machining? A: No, the cylinder must be bored to match the .010 over size; attempting installation without correct machining will cause piston seizure or poor ring seal.

Q: Are the rings pre-gapped? A: Rings are supplied as standard; final end gap should be checked and adjusted according to your engine's service manual for optimal performance.

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