Sierra Marine Parts Catalog

741 18-1994 THERMOSTAT HOUSING Replaces: 87290A4 For: Stainless Steel Version use 18-1989 18-1993 THERMOSTAT HOUSING Replaces: 78984A08, 78984A1, 78459A1, 59861A4, 59861A1 18-1989 THERMOSTAT HOUSING Replaces: 8M0061381, 861006A1 Stainless Steel Use 18-1989K Thermostat Service Kit for replacement parts 18-1910 THERMOSTAT HOUSING KIT Replaces: 47587, 47587A2, 47588, 60372A1, 60372A2, 63908A2, 861493A07, 861493A3 Fits: 3.0L GM 1999-Up, S/N 0L340999-Lower 18-1989K THERMOSTAT SERVICE KIT Service Kit for 18-1989 Thermostat Housing THERMOSTAT APPLICATION 18-1977-1 THERMOSTAT HOUSING Replaces: 47441, 47441A1 Fits: 225, GM 260, 228, 898/198, 185R, 898R, 228R, 2GR I/O — MERCRUISER - Cooling System 18-1508 THERMOSTAT SEAL Replaces: 25-8071341 Fits: Vazer (2007 & UP), GM V6 & V8 with closed cooling systems (1996 & UP) Engine/Model CID/#CYL YearRange Beginning Serial# EndingSerial# Housing Thermostat Cover Thermostat& GasketKit Thermostat GasketsReq. Gaskets Req.- Design II GasketsReq.- Design III ROVER 3140000 UP 18-3551 60 68/L4 1965-1968 1887079 2049044 18-3551 80 80/L4 1966-1969 2049045 2851423 18-3551 90 96/L4 1970-1972 2851424 3226957 18-3557 18-2831 100 VASER 98/L4 2007-2010 w995000 &UP 18-1508 110 153/L4 1963-1966 1537370 2044033 ❹ 18-3551 110 153/L4 1963-1966 1821720 2044033 ❺ 18-3551 120 153/L4 1964-1972 1666601 3377340 ❹ 18-3551 120 153/L4 1964-1966 1725593 2046624 ❺ 18-3551 120 153/L4 1967 2046625 2324346 ❺ 18-3551 120 153/L4 1968-1972 2324347 3377340 18-3650 ❺ , ➂ 18-3650 18-3550 18-2831 120 153/L4 1972-1986 3377341 B531853 18-3650 ➂ 18-3650 18-3550 18-2831 2.5L 153/L4 1987-1989 B531854 C853255 18-3650 ➂ 18-3650 18-3550 18-2831 140 181/L4 1968-1986 2508261 B450800 18-3650 ➂ 18-3650 18-3550 18-2831 140(6CYL) 1538930 1725960 — 18-3551 — 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 18-3668 THERMOSTAT KIT Replaces: 807252T4, 807252Q4 —CONTAINS— Part # Description O.E.# 18-2552 Thermostat Cover Gasket 27-33179-2 18-2553 Thermostat Cover Gasket 27-47510 18-2554 Thermostat Cover Gasket 27-41812 18-3551 Thermostat 59137 18-7173 O-Ring 25-30224 18-2917 Thermostat Housing Gasket 27-53045-1, 27-33918 ➀ 18-3668D 18-3667 THERMOSTAT KIT —CONTAINS— Part # Description O.E.# 18-2555 Thermostat Cover Gasket 27-89656-1 18-3555 Thermostat 99155A1 18-3530-1 THERMOSTAT HOUSING Replaces: 860256A4, 860256A2 For: GM V6 and V8 (305 & 350 ci) 18-3531 THERMOSTAT HOUSING Replaces: 807074A1, 808064A1, 861188A1 Fits: MCM/MIE GM V-6 & V-8 (305, 350, 454 & 502 cid) engines w/closed cooling systems