Sierra Marine Parts Catalog

748 THERMOSTAT APPLICATION (Cont.) Engine/Model CID/#CYL YearRange Beginning Serial# EndingSerial# Housing Thermostat Cover Thermostat& GasketKit Thermostat GasketsReq. Gaskets Req.- Design II GasketsReq.- Design III BLACK SCORPION SKI 350/V-8 1996-2001 0F800000 M391599 18-3530-1 18-3647 18-3649 18-0398 BLACK SCORPION SKI 350/V-8 2003-2006 M391600 W690192 ➈ 18-3647 18-3649 18-0398 BLACK SCORPION SKI 350/V-8 2006-2007 W690193 W698432 ➈ 18-3647 18-3649 18-0398 BLACK SCORPION SKI 350/V-8 2003-2007 M391600 W698433 ➉ 18-3647 18-3649 18-0398 SCORPION 350 350/V-8 2008-2010 W698433 &UP ➈ 18-3647 18-3649 18-0398 SCORPION 350 350/V-8 2008-2010 W698433 &UP ➉ 18-3647 18-3649 18-0398 SCORPION 350 EC 350/V-8 2008-2010 W698433 &UP ➇ 18-3647 18-3649 18-0398 233 MCM (FORD) 351/V-8 1975-1977 4173000 4902304 18-3646 18-3551 18-2834 233 MIE (FORD) 351/V-8 1975-1977 4173000 4902304 18-3646 18-3551 18-2834 255 MCM/MIE (FORD) 351/V-8 1973-1974 3258728 4178299 18-3646 18-3551 18-2834 377 MAG FWC 377/V-8 2008-2010 A300000 &UP ❻ , ➅ 18-0398 377 MAG FWC DTS 377/V-8 2008-2010 A300000 &UP ❻ , ➆ 18-0398 377 MAG FWC EC 377/V-8 2008-2010 A300000 &UP ❻ , ➇ 18-0398 377 MAG FWC EC DTS 377/V-8 2008-2010 A300000 &UP ❻ , ➆ , ➇ 18-0398 377 MAG 377/V-8 2008-2010 A300000 &UP ❼ , ➃ 18-3647 18-3649 18-0398 377 MAG 377/V-8 2008-2010 A300000 &UP ❼ , ➄ 18-3647 18-3649 18-0398 377 MAG EC 377/V-8 2008-2010 A300000 &UP ❼ , ➇ 18-3647 18-3649 18-0398 377 SCORPION MCM 377/V-8 1999-2005 L416146 M907201 18-1977-1 18-3551 18-0398 18-2553 377 SCORPION SKI 377/V-8 1997-1998 K000656 L600314 18-3647 18-3649 18-0398 MX6.2L MPI FWC 377/V-8 2000-2001 L680003 M299999 18-3531 ❻ 18-3568 18-3555 18-0398 MX6.2L MPI 377/V-8 2000-2001 L680003 M299999 18-3530-1 ❼ 18-3647 18-3649 18-0398 MX6.2L MPI FWC 377/V-8 2002 M300000 M599999 ❻ 18-3568 18-3555 18-0398 MX6.2L MPI FWC 377/V-8 2002-2007 M600000 A299999 ❻ 18-0398 MX6.2L MPI 377/V-8 2002-2007 M300000 A299999 ❼ , ➃ 18-3647 18-3649 18-0398 MX6.2L MPI 377/V-8 2002-2007 M300000 A299999 ❼ , ➄ 18-3647 18-3649 18-0398 MX6.2L MPIHORIZON 377/V-8 2002 M300000 M599999 ❻ 18-3568 18-3555 18-0398 MX6.2L MPIHORIZON 377/V-8 2002-2007 M600000 A299999 ❻ 18-0398 MX6.2L MPIHORIZON MIE 377/V-8 2002 M300000 M316999 ❻ 18-3568 18-3555 18-0398 MX6.2L MPIHORIZON MIE 377/V-8 2002-2010 M317000 &UP ❻ 18-0398 MX6.2L MPI MIE FWC 377/V-8 1999-2002 L670000 M316999 ❻ 18-3568 18-3555 18-0398 MX6.2L MPI MIE FWC 377/V-8 2002-2010 M317000 &UP ❻ , ➅ 18-0398 MX6.2L MPIMIEFWC DTS 377/V-8 2008-2010 A0900000 &UP ❻ , ➆ 18-0398 MX6.2L MPIMIE FWCEC 377/V-8 2008-2010 A0900000 &UP ❻ , ➅ , ➇ 18-0398 MX6.2L MPIMIEFWC ECDTS 377/V-8 2008-2010 A0900000 &UP ❻ , ➆ , ➇ 18-0398 MX6.2L MPI MIE 377/V-8 2002-2010 M300000 &UP ❼ 18-3647 18-3649 18-0398 MX6.2L MPI MIE 377/V-8 2008-2010 A0900000 &UP ❼ 18-3647 18-3649 18-0398 MX6.2L BLACK SCORPION 377/V-8 2001-2002 L005601 M391599 18-3530-1 18-3647 18-3649 18-0398 MX6.2L BLACK SCORPION 377/V-8 2003-2006 M391600 W690192 ➈ 18-3647 18-3649 18-0398 MX6.2L BLACK SCORPION 377/V-8 2006-2007 W690192 W698432 ➈ 18-3647 18-3649 18-0398 SCORPION377 377/V-8 2008-2010 W698433 &UP ➈ 18-3647 18-3649 18-0398 SCORPION377 377/V-8 2008-2010 W698433 &UP ➉ 18-3647 18-3649 18-0398 SCORPION377 HO EC 377/V-8 2008-2010 A091488 A092170 ➇ 18-3647 18-3649 18-0398 325 MCM/MIE 427/V-8 1969-1972 2278747 3780449 18-3646 18-3551 18-2553 18-0398 ❶ Design I ❷ Design II ❸ Design III ❹ Aluminum Exhaust Manifold ❺ Cast Iron Exhaust Manifold ❻ Closed Cooling ❼ Standard Cooling ❽ With check ball ❾ Without check ball ❿ SN 4167000 & Up ➀ Original thermostat housing listed as NLA. Order update kit 87290A23 ➁ Original thermostat housing listed as NLA. Order update kit 90736A24 ➂ Complete thermostat housing kit kit ➃ Single and 3-point drain system ➄ 7-point drain system ➅ Mechanical Throttle Body ➆ Digital Throttle Body ➇ Emission Control Engine ➈ Manual drain system ➉ Air Actuated drain system ☞ Old Design ♠ New Design ♣ 160 degree ♥ For Stainless Steel version use 18-1989 I/O — MERCRUISER - Cooling System