HiFeedor 75692Q2 Thermostat Kit for Marine V6 135-200HP | 143°F Replacement (2-Pack)

Overview

The HiFeedor 75692Q2 Thermostat Kit delivers a practical, two-piece upgrade for modern marine V6 engines in the 135–200 HP range. Designed around a stable 143°F operating threshold, this kit aims to help your cooling system maintain a consistent temperature during routine cruising, fishing, or family outings. By consolidating two thermostats into one kit, it streamlines service and reduces downtime when a replacement is needed.

Each thermostat is crafted to fit within common marine cooling layouts, offering a straightforward path to restore predictable cooling performance without guesswork. While performance can vary with engine condition and installation, this kit provides a solid option for keeping your motor within its comfortable thermal zone on the water.

What's Included

• 2 thermostats for a complete replacement set

Compatibility and Replacement Notes

• FITS: V‑6 135–150HP engines (S/N A904646 and later), V‑6 175HP (S/N C100861 and later), and V‑6 200HP (S/N 6435503 and later).
• RATED TEMPERATURE: 143°F, designed to support steady cooling performance under typical boating loads.
• REPLACEMENTS: Compatible with GLM 13340, 30610, 75692Q2, 75692Q 2, 27-62386, 27-62386001, Evinrude 310058, Mallory 9-60002.
• NOTE: Will not fit DFI Optimax motors.

Why Choose HiFeedor

Two thermostats in one kit reduce service steps and minimize downtime. The components are designed to withstand marine conditions and deliver consistent performance across typical operating cycles. The 143°F spec offers a balanced approach to cooling, potentially helping to avoid overheating during high-demand use, without making guarantees about outcomes.

Installation and Care

• Verify engine model and serial compatibility before purchase.
• Power down the vessel and follow standard procedures when replacing thermostats.
• Inspect hoses and clamps for wear and replace as needed after installation.

If you encounter any issues with the product, please contact us for assistance. We’re ready to help you solve the problem promptly.