Thermostat Kit – Fits Mercury/Mariner 4-Stroke 8-40 HP (Replaces 825212A1, 825212001, 855676003) 15HP High-performance or modified engines often

High-performance or modified engines often require different temperature ratings and specialized components

It is compatible with a wide range of Yamaha 2-stroke and 4-stroke outboard motors from 6 HP to 300 HP

This part is a direct replacement for NorthBoat FO2003

this is a high-quality aftermarket part designed to meet or exceed OEM specifications

while others include only the pump

Thermostat Kit – Fits Mercury/Mariner 4-Stroke 8-40 HP (Replaces 825212A1, 825212001, 855676003) 15HP High-performance or modified engines oftenProduct Details This Thermostat Kit Fits Mercury Mariner 4 Stroke 8 40 HP Outboard Motors is an essential component for maintaining optimal engine temperature in Mercury Mariner 4 Stroke 840 HP outboard engines from 19952018, including specific 30 HP (19992005), 40 HP (19982018), and 50 HP (19952000) models. It serves as a direct cross reference for multiple OEM and aftermarket part numbers, including Mercury 825212A1, 825212001, 855676003, 825212T02,