Oversize Piston Kit 82.25mm (+0.25mm)
Fits Yamaha 75HP, 80HP, 85HP, 90HP 3-Cylinder 2-Stroke Outboards

This complete set of three oversize pistons is designed for rebuilding Yamaha 3-cylinder 2-stroke outboards. Each piston is precision-machined to 82.25mm (+0.25mm oversize) and includes the required rings, pin, and clips for a proper install.

Includes (x3 Pistons):
3 x Oversize pistons (82.25mm)
3 x Ring sets
3 x Wrist pins
6 x Circlips

Fits Yamaha 2-Stroke Models (Approx. 1990 & Newer):
75HP
80HP
85HP
90HP
(3-cylinder)

Not all variants of these models are compatible. Please contact us with your engine number if youre unsure.

Replaces OEM Yamaha Part Numbers:
688-11635-03
6H1-11635-0300 (and variants)

Why Buy from SSI Marine?

High-quality marine engine components in UK stock
Same-day dispatch before 1PM
Tracked shipping options
Expert support from marine professionals

Rebuild your Yamaha with confidence SSI Marine delivers reliable parts you can trust.