Four Seasons 86371 Engine Coolant Water Outlet

Overview

Four Seasons 86371 is an engine coolant water outlet for select Toyota Tacoma applications. It is a plastic outlet assembly with no thermostat and no gasket or seal included, built for direct replacement of the original coolant outlet design.

Fits 2016-2023 Toyota Tacoma, N/A, with engine oil cooler and water outlet application details. Four Seasons Water Outlet line focuses on cooling-system components engineered and tested for dependable operation, and part number 86371 is cross-referenced to Gates CO35077 for the same application.

Key Features

• Plastic coolant outlet construction for the engine cooling system
• Outlet style without thermostat for applications that use a separate thermostat housing
• 1.39 in inlet diameter for proper hose connection sizing
• 4.55 in overall height with 0.56 in mounting flange width
• Four Seasons 86371 for cooling-system service and replacement

Detailed Description

This engine coolant water outlet is part of Four Seasons' Water Outlet line and is intended for cooling-system repair where the original outlet has cracked, warped, or begun leaking. The plastic construction, outlet style, and thermostat-free design make it a practical replacement for the specified Toyota Tacoma fitment. Part number 86371 is also referenced as 86371 in interchange listings and cross-references Gates CO35077 for the same application.

Common Repair Uses

• Replacing a leaking coolant outlet
• Restoring proper coolant flow at the outlet connection
• Addressing cracked or heat-damaged plastic housing
• Correcting fitment issues caused by a worn mounting flange
• Servicing the cooling system during thermostat-related repairs

Installation Notes

Verify hose diameter, mounting flange dimensions, and application details before installation. This outlet does not include a thermostat, gasket, or seal, so those components must be sourced separately if required by the repair. Confirm the vehicle's cooling-system configuration matches the listed Tacoma application before replacing the part.

Quality Assurance

Four Seasons states that its products are engineered and tested for years of trouble-free operation, backed by more than 50 years of mobile A/C experience. Part number 86371 is built for cooling-system service with a focus on consistent replacement performance.