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Sierra 18-3650 MerCruiser 140 Degree Thermostat and Gasket Kit

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Sierra 18-3650 MerCruiser 140 Degree Thermostat and Gasket Kit
Discounted Price: $23.61
Part Number: SIE18-3650
Sierra 18-3650 MerCruiser 140 Degree Thermostat and Gasket Kit. Aftermarket 140 degree thermostat fits multiple MerCruiser raw water cooled 4 cylinder marine engines.
  • Fits Mercruiser model 120 153CID raw water cooled engines from 1968 to 1972 with serial number range 2324347 to 3377340
  • Fits Mercruiser 2.5L 153 CID raw water cooled engines from 1987 to 1989 with serial number range B531854 to C853255
  • Fits Mercruiser 3.0L 181 CID raw water cooled engines from 1987 to 1989 with serial number range B450801 to C856558
  • Kit includes 18-3550 140 degree thermostat and 18-2831 housing gasket
  • Replaces Mercury 59078 thermostat and 27-47590 gasket
  • Replaces Mallory 9-43020, 9-43153

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