Skip to content

Sierra 18-1989 Thermostat Housing Stainless Steel

Original price $219.99 - Original price $219.99
Original price
$219.99
$219.99 - $219.99
Current price $219.99

Sierra 18-1989 Thermostat Housing Stainless Steel

  • Fits various Mercruiser GM 4.3L; 5.7L; 7.4L and 8.2L applications
  • Stainless steel construction
  • Includes inserts; pipe plugs & thermostat gasket
  • Uses Sierra 18-1989K gasket service kit
  • Replaces Mercury 87290A4; 8M0061381; & 861006A1

Replaces OEM part # MERCURY MARINE 860256A4 MERCURY MARINE 861006A MERCURY MARINE 87290A4