Description
Thermostat 8M0045990 is for MerCruiser sterndrive 8.2L Magnum and 8.2L EC MerCruiser inboard engines It is a 170°F thermostat.
- 170°F thermostat
- Easy to replace with common tools
- See your owner’s manual for removal of non-functioning thermostat and replacement of new thermostat
- Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser sterndrive
![Blue Sea 8361 AC Rotary Switch Panel 65 Ampere 3 Positions + OFF, 3 Pole [8361] Top Pick](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/blue-sea-8361-ac-rotary-switch-panel-65-ampere-3-positions-off-3-pole-8361-top-p.webp)
![Popular Shakespeare 5911 10″ VHF Antenna [5911]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/popular-shakespeare-5911-10-vhf-antenna-5911.webp)
![Markdown Shakespeare 5215 3‘ Stainless Steel Whip Antenna [5215]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/markdown-shakespeare-5215-3-stainless-steel-whip-antenna-5215.webp)
![Price Cut Shakespeare 5215-C-X 3‘ VHF Antenna [5215-C-X]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/price-cut-shakespeare-5215-c-x-3-vhf-antenna-5215-c-x.webp)
![One Day Deal Lectrotab Actuator Upper Bracket [BU]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/one-day-deal-lectrotab-actuator-upper-bracket-bu.webp)
![Buy Today TACO Marine Lumber – 24″ x 27″ x 1/4″ – White Starboard [P10-2524WHA27-1C]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/buy-today-taco-marine-lumber-24-x-27-x-1-4-white-starboard-p10-2524wha27-1c.webp)
![Lectrotab 12 V Heavy Duty Tab Actuator – 6 Cable [A-BK-20] Certified](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/lectrotab-12-v-heavy-duty-tab-actuator-6-cable-bk-20-certified.webp)