Universal 1/8" NPT Temperature Sender for Oil/Water Monitoring (0–150°C / 0–300°F) Boat Accessories removing any old debris or

removing any old debris or impeller fragments

What is the warranty and return policy

It is also an interchange for Sierra 18-7955 and WSM 600-298

Lubricate the inside of the pump housing and the new impeller with a water-based lubricant or glycerin

Install the new cartridge insert

Universal 1/8" NPT Temperature Sender for Oil/Water Monitoring (0–150°C / 0–300°F) Boat Accessories removing any old debris orProduct Details This Universal 1 8" NPT Temperature Sender for Oil Water Monitoring (0150C 0300F) is a direct fit replacement for Mercury and Mariner outboard and inboard engines that require OEM part 12415. Engineered for accuracy, it monitors engine oil or water temperature to ensure your vessel operates within safe limits. It serves as a direct interchange for Mercury 12415 and Sierra 18 5896. Features a standard 1 8" NPT single wire threaded