Thermostat Housings

Mercruiser Thermostat Housing 9-42501 ~~$319.99~~ $225.50 On Sale! 9-42501 Mallory thermostat housing fits MCM / MIE GM V6 V8 305, 350, 454, 502 with closed cooling. Replaces Mercruiser 861188A1.	Mercruiser Thermostat Housing 9-42502 ~~$176.99~~ $146.19 On Sale! 9-42502 Mallory thermostat housing fits MCM / MIE GM V6 - V8 305, 350, 454, 502, 504 early design. Replaces Mercruiser 87290A4. Sold individually.
Mercruiser Thermostat Housing 9-42503 ~~$57.99~~ $49.99 On Sale! 9-42503 Mallory thermostat housing fits MCM / MIE V6-V8 454, 502, 482. Offset bolt pattern. Replaces Mercruiser 47442A1. Sold individually.	Mercruiser Thermostat Housing 9-42504 ~~$219.95~~ $165.99 On Sale! 9-42504 Mallory thermostat housing fits MCM / MIE GM V8 305, 350, 454, 502 with closed cooling. Replaces Mercruiser 55131A5. Sold individually.
Mercruiser Thermostat Housing 9-42505 ~~$209.95~~ $169.99 On Sale! 9-42505 Mallory thermostat housing fits MCM / MIE 185 229CID 330, 340, 7.4L, 454 Mag, 370, 425, 465. Replaces Mercruiser 90736A18.	Mercruiser Thermostat Housing 9-42506 ~~$49.99~~ $41.99 On Sale! 9-42506 Mallory thermostat housing fits MCM / MIE GM V6 V8 305, 350, 454, 502, 540 with straight accross bolt pattern. Replaces Mercruiser 47441A1. Sold individually.