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Thermostat Kit with Sleeve Replacement for MerCruiser Quicksilver V6 and V8 Engines 4.3, 5.0, 5.7, 7.4, 8.2L - 18-3668, 23-47508T, 807252Q4

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$25.00

$ 11 .99 $11.99

In Stock
  • Replaces Part #’s: 807252Q4, 807252T4, 18-3668, 23-47508T, 47508T, 59137, 59137A1, 32728, 35884, 8072521, 8072531, 807252T1, 8M0089715, 25-30224, 30224, 27-33179-2, 33179-2, 27-47510, 47510, 27-41812, 41812, 18-3551, 18-7173, 18-2552, 18-2553, 18-2554, 13390, 13250
  • Includes: 1x Brass Sleeve (23-47508T), 1x Thermostat (18-3551, 59137, 807252T1), 1x O-Ring (25-30224, 18-7173), 1x Gasket (27-33179-2, 18-2552), 1x Gasket (27-47510, 18-2553), 1x Gasket (27-41812, 18-2554)
  • For Use On: 1983 - 1996 MerCruiser V6 and V8 GM Engines That Use a 140 Degree Thermostat
  • Fits 1983 and newer GM V-6 and V-8 engines with standard cooling, requiring a 140-degree thermostat


or Use On the Following MerCruiser Models: (HP/Model / CID / Serial # / Year) 185 / 229 (V6) / 6330183 - 6919655 / 1983 - 1984 175 / 262 (V6) / 0B527955 - 0B773242 / 1987 185 / 262 (V6) / 0A331455 - 0B527954 / 1985-1986 205 / 262 (V6) / 0B527955 - 0B775129 / 1985-1987 4.3L / 262 (V6) / 0B773243 - 0F601126 / 1987-1995 898 / 305 (V8) / 6218462 - 689905 / 1983-1984 200 / 305 (V8) / 6899058 - 0B774444 / 1985-1987 228 / 305 (V8) / 6218462 - 6899268 / 1982-1984 230 / 305 (V8) / 6899269 - 0B773739 / 1985-1987 230 MIE / 305 (V8) / 5907058 - 0B78151 / 1981-1987 5.0L / 305 (V8) / 0B774445 - 0F600999 / 1988-1995 5.0L MIE / 305 (V8) / 0B788152 - 0C396832 / 1988 5.0LX / 305 (V8) / 5907058 - 0F600999 / 1988-1995 260 / 350 (V8) / 6218462 - 0B788151 / 1982-1987 260 MIE / 350 (V8) / 5907058 - 0B788151 / 1981-1987 300 / 350 (V8) / 6668677 - 0B430367 / 1985-1986 300 Mag / 350 (V8) / 0A635178 - 0F600999 / 1986-1995 350 Mag Ski / 350 (V8) / 0D505450 - 0K040399 / 1991-1996 5.7L / 350 (V8) / 0B773305 - 0F600999 / 1988-1995 5.7L MIE / 350 (V8) / 0B788152 - 0F600999 / 1988-1995 5.7L Ski / 350 (V8) / 0A338533 - 0F775199 / 1985-1995 330 MIE / 454 (V8) / 6083145 - 0B816540 / 1982-1987 340 MIE / 454 (V8) / 5889914 - 0B788365 / 1981-1987 370 / 454 (V8) / 6721528 - 0B714586 / 1985-1987 454 Mag Alpha/Bravo / 454 (V8) / 0A631894 - 0F304999 / 1986-1994 525 SC / 454 (V8) / 0D456000 - 0L415623 / 1991-1999 7.4L / 454 (V8) / 0B771113 - 0F351999 / 1988-1994 7.4L MIE / 454 (V8) / 0B788366 - 0F349999 / 1988-1994 390 MCM & MIE / 482 (V8) / 2781129 - 3042731 / 1969-1970 460 / 482 (V8) / 4179554 - 6181046 / 1983-1986 465 / 502 (V8) / 0C849992 - 0F213244 / 1990-1994 500, 500 EFI / 502 (V8) / 0F213293 & UP / 1994-2004 502 Mag / 502 (V8) / 0C878221 - 0F114528 / 1990-1993 8.2L MIE / 502 (V8) / 0C878221 - 0D857199 / 1990-1992


captain ron
Reviewed in the United States on June 11, 2024
this thermostat does not open till 170 degrees also gasket is not the grounding type,
Jim Martin
Reviewed in the United States on May 3, 2024
Item does not operate at specified temperature when tested. Did not open until 160 deg. Housing gasket does not have proper grounding inserts. What a waste of time. Delayed getting boat out. Don’t waste your money.