Sierra 18-3647 Thermostat Kit for Mercury Mercruiser Outboards (71°C)

 

Part No: SM-18-3647

Sierra Marine thermostat kit 18-3647 will replace the following thermostats:

- Mercury/Mercruiser 807252Q5

- Mercury 807252T5

- Sierra 18-3647D

- Mallory 9-43157

Thermostat Kit Contents:

- 18-3649 Thermostat 160°F / 71.1°C (807252-2)

- 18-2844 Thermostat Cover Gasket (27-48818-1)

- 18-2552 Thermostat Cover Gasket (27-33179-2)

- 18-2553 Thermostat Cover Gasket (27-47510)

- 18-7173 O-Ring (25-30224)

- 18-2917 Thermostat Housing Gasket (27-53045-1 & 27-33918)

The thermostat, gaskets and O-ring are suitable for the following engines:

Mercruiser:

- 200/5.0L (0B525982 - 0F600999)

- 230/5.0LX GM (0B525982 - 0F600999)

- 260/5.7L GM (0B525982 - 0F600999)

- 262 Mag Alpha (0F803800 - 0K999999)

- 262 Mag Bravo (0F803800 - 0K999999)

- 4.3L/LX GM (0F000878 - 0F601126)

- 4.3L/LX/LXH Alpha (0F601127 - 0K999999)

- 4.3L/LX/LXH Bravo (0F601127 - 0K999999)

- 4.3L/LH/EFI Alpha (0L010044 & Up)

- 4.3L/LH/EFI (0L010044 & Up)

- 5.0L/EFI Alpha (0L012052 & Up)

- 5.0L/EFI Bravo (0L012052 & Up)

- 5.7 GM Alpha (0F225560 - 0K999999)

- 5.7 GM Bravo (0F225560 - 0K999999)

- 5.7L/EFI GM Alpha (0L010037 & Up)

- 5.7L/EFI GM Bravo (0L010037 & Up)

- 5.7L Ski (0B514627 & Up)

- 5.7L MIE (0F025000 - 0F622099)

- 5.7L MIE (0F622100 - 0K999999)

- 5.7L MIE (0F622100 - 0K999999)

- 5.7L MIE (0L002003 & Up)

- 350 Mag (0B252882 - 0K999999)

- 350 Mag (0B252882 - 0K999999)

- 350 Mag Ski (0D505450 - 0K999999)

- 350 Mag EFI Ski (0F215561 - 0K999999)

- 350 Mag MPI/MIE (0L010019 & Up)

- 350 Mag MPI Ski (0F350583 & Up)

- Scorpion Ski (0F800000 & Up)

- 7.4L/LX GM (0F352000 - 0K999999)

- 7.4L MPI/TBI (0F563052 & Up)

- 7.4L MIE (0F820142 - 0K999999)

- 7.4L MIE (0F820142 - 0K999999)

- 454 Mag MCM/Ski (0F305000 - 0K999999)

- 502 EFI/MPI MCM (0F8026000 - 0K999999)

- 502 Mag MPI (0L017000 & Up)

- 8.2L MIE (0D857200 - 0F350274)

- 8.2L MIE (0F350275 - 0F819619)

- 8.2L MIE (0D857200 - 0F819619)

- 8.2L MPI/MIE (0F819620 & Up)

 

Brand	Sierra
Suitable For	Mercruiser
Contents	Thermostat 18-3649, 3x Cover Gaskets 18-2552, 18-2553 & 18-2844, O-Ring 18-7173, Housing Gasket 18-2917