Various Parts


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Sierra SIE18-3290 Marine Elbow Connector, OMC 321886 Replacement Hose Adapter for Boat Exhaust Systems
  • Suggested Retail Price $7.98
SIERRA SIE18-3300 Woodruff Key for Mercury Yamaha Marine Outboard
  • Suggested Retail Price $9.99
Sierra SIE18-3500 Marine Thermostat Vernatherm J / E Replacement for BRP OMC
  • Suggested Retail Price $59.98
Sierra Marine Thermostat 143 Degree for Mercury Outboard Replacement
  • Suggested Retail Price $48.99
THERMOSTAT
  • THERMOSTAT
  • AMMA Marine
  • Code: SIE18-3543
  • Ensure reliable engine temperature control and optimal performance on the water with the Amma Marine thermostat, designed as a direct replacement for Mercury and OMC outboard engines. Built to endure …
  • Suggested Retail Price $46.99
Sierra 18-3549 120°F Outboard Thermostat for Mercury Mariner OEM Replacement
  • Suggested Retail Price $44.98
Sierra 18-3550 Marine Thermostat 140°F Replacement for Mercruiser Mercury
  • Suggested Retail Price $46.98
THERMOSTAT
  • THERMOSTAT
  • AMMA Marine
  • Code: SIE18-3551
  • Maintain optimal engine temperature in your marine outboard with this reliable boat engine thermostat from AMMA Marine. Designed for precise cooling, it regulates coolant flow to help prevent overheating and …
  • Suggested Retail Price $34.99
THERMOSTAT
  • THERMOSTAT
  • AMMA Marine
  • Code: SIE18-3553
  • Maintain optimal engine temperature in your Mercury outboard with the dependable AMMA Marine Thermostat. This thermostat is engineered as a direct replacement for OEM parts 62981, 66850, 75692, and 75692B, …
  • Suggested Retail Price $39.98
THERMOSTAT
  • THERMOSTAT
  • AMMA Marine
  • Code: SIE18-3554
  • Maintain optimal engine temperature with this dependable marine thermostat from AMMA Marine. Designed as a direct replacement for popular BRP/OMC and Volvo Penta outboard and inboard engines, it helps ensure …
  • Suggested Retail Price $46.98
Sierra SIE18-3555 Marine Thermostat for Mercury Outboard 99155 OEM Replacement
  • Suggested Retail Price $36.98
Sierra SIE18-3556 Marine Engine Thermostat for Mercury Force Chrysler Outboards
  • Suggested Retail Price $31.98
Sierra Marine Thermostat Replacement for Mercury, OMC, Volvo, Force
  • Suggested Retail Price $45.98
Sierra SIE18-3558 Marine Engine Thermostat for BRP OMC Volvo 3853799 982554
Sierra SIE18-3560 Marine Engine Thermostat Replacement for BRP OMC 384719
  • Suggested Retail Price $45.99
Sierra 120 Degree Thermostat Kit for Mercury Outboard 70-125HP Replacement
  • Suggested Retail Price $37.98
THERMOSTAT w / GASKET
  • THERMOSTAT w / GASKET
  • SIERRA
  • Code: SIE18-3609
  • Sierra 18-3609 Yamaha 50C Thermostat & Gasket Kit Fits Models: 25 (1996-98,2001-02), 40 (1991-99, 01), C40 (1997-02), P40 (1998), 50 (1991-97, 1999-02), C50 (1998-01), P50 (1991-96), …
Sierra 18-3618 Thermostat Kit for Volvo Penta With Gasket and Seal
  • Suggested Retail Price $46.98
Sierra 18-3621 Marine Thermostat Kit 160°F for Mercruiser OMC Indmar
  • Suggested Retail Price $53.98
Sierra 18-3623 Thermostat for Yamaha Outboard, Replaces 6E5-12411-02-00, OEM Spec
  • Suggested Retail Price $79.99
Sierra 18-3635 Mercury Thermostat Kit for 75-115 HP & 150 EFI 4-Stroke Outboards OEM Replacement
  • Suggested Retail Price $199.99
THERMOSTAT KIT
  • THERMOSTAT KIT
  • AMMA Marine
  • Code: SIE18-3644
  • Keep your engine at the optimal temperature with this complete thermostat kit, designed for dependable cooling system maintenance using premium Sierra components. This kit includes everything required for a full …
  • Suggested Retail Price $54.98
ENS. THERMOSTAT
  • ENS. THERMOSTAT
  • AMMA Marine
  • Code: SIE18-3646
  • Maintain optimal engine temperature with this high-quality 140°F thermostat kit from AMMA Marine, designed for reliable cooling in marine outboard engines. This complete assembly ensures proper coolant flow, helping …
  • Suggested Retail Price $57.99
Sierra Marine Thermostat Kit SIE18-3647 – Mercury 807252 Replacement
  • Suggested Retail Price $89.98