2 Namura .040 Over Bore Piston Kits for Sea-Doo 580 1990-1996 77mm SEE LIST
2 Namura .040 Over Bore Piston Kits for Sea-Doo 580 1990-1996 77mm SEE LIST
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2 Namura .040 Over Bore Piston Kits for Sea-Doo
These two Namura .040 over bore piston kits are designed for Sea-Doo 580 personal watercraft from 1990 to 1996, featuring a 77mm bore size to replace worn pistons and restore engine compression.
Overview
These 2 Namura .040 over bore piston kits are precision-crafted for Sea-Doo 580 engines built between 1990 and 1996. Each kit includes rings and wrist pin, providing a complete piston replacement for the 77mm bore. Ideal for restoring compression and performance in your Sea-Doo watercraft, these piston kits deliver reliable operation.
Built For Performance
- Precision-machined from high-strength aluminum alloy
- Includes .040 over bore rings for proper sealing
- Lightweight design reduces reciprocating mass
- Heat-treated for durability under high RPM
- Direct replacement for original pistons
Fits These Machines
- for Sea-Doo 580 (1990-1996)
On-The-Job Use
- Rebuilding or replacing worn pistons in Sea-Doo 580 engines
- Maintaining or restoring performance in personal watercraft
- Engine overhaul and top-end rebuilds
Specs At A Glance
| Part Number(s) | Namura .040 Over Bore Piston Kit |
| Bore Size | 77mm |
| Oversize | .040 |
| Compatibility | Sea-Doo 580 (1990-1996) |
Good To Know
Q: Are these piston kits compatible with stock cylinders? A: Yes, the .040 over bore size requires the cylinder to be bored to match; they are designed for engines already bored .040 over.
Q: Does this kit include piston rings and pins? A: Yes, each kit includes rings and a wrist pin for a complete piston replacement.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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