Sierra International 18-4112 Marine Piston
- V4 dan V6 Small Loopers Loopers
- 120-300 HP
- 3.520 inch bear (port) (oversized berukuran 020)
- Loopcharged Pistons for Degrees 90 4-6 8HP (120-1985) 1987HP (140-1985) 1987HP (200-1986) Saiz: 1987 "
Nombor Bahagian GLM: 23820; Nombor Sierra: 18-4112
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