Mercury 59078T-3 140 Degree Thermostat Kit - MW
Mercury - Mercruiser 59078T-3 140 Degree Thermostat Kit
Mercury 59078T3 Thermostat is designed to help regulate proper engine operating temperature, protecting older MerCruiser engines from overheating or inefficient cooling. Built specifically for pre-1998 GM-based MerCruiser inline engines, this thermostat helps maintain consistent performance and engine reliability.
Manufactured to Mercury OEM specifications, the kit includes both the thermostat and cork gasket for a correct seal and dependable installation using common tools.
Features:
- Designed for older MerCruiser inline 4- and 6-cylinder engines made by General Motors
- Helps regulate proper engine operating temperature
- Includes thermostat and cork thermostat gasket
- Supports efficient engine performance and protection
- Easy replacement using common shop tools
- Manufactured to Mercury OEM standards for fit, function, and durability
Replaces:
- Mallory 9-43153
- GLM 13370
- Redline RL3650
WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov




