Sierra International 18-4111 Marine Piston
- V4 and V6 Small Bore Loopers
- 120-300 HP
- 3.520 inch bore (starbord) (.020 oversize bore)
- Loopcharged Pistons for 90 Degrees V4/V6/V8 120HP (1985-1987) 140HP (1985-1987) 200HP (1986-1987) 225HP (1986-1987) 275HP (1985-1987) 300HP (1985-1987) Size: 3.500 + .020
GLM Part Number: 23830; Sierra Part Number: 18-4111
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