Autotecnica TY0717617 Engine Coolant Thermostat / Water Inlet Assembly

OE-Style Cooling Control

Autotecnica TY0717617 is an engine coolant thermostat and water inlet assembly built for direct-fit cooling system service. It is engineered for Lexus applications that need a precise thermostat housing replacement with reliable hose connection points and stable coolant flow.

Key Features

• High-flow OE-style design for consistent engine cooling performance
• Factory-style housing dimensions for bolt-on installation
• PA6GF30 housing material helps resist warping and cracking
• 185-degree opening temperature for controlled coolant regulation
• Gasket or seal included for sealing at the housing interface
• Wax stainless thermostat construction for dependable temperature response

Detailed Description

This Autotecnica thermostat housing assembly is designed to match factory housing dimensions and support reliable coolant routing in Lexus GS350, IS250, IS350, RC350, RC300, GS450h, IS300, and GS300 applications. The TY0717617 uses a temperature-stable PA6GF30 housing and a wax stainless thermostat element to help maintain consistent operating temperature while reducing the risk of coolant leakage from a distorted housing. The 185-degree thermostat specification makes it a practical replacement for vehicles that require this exact opening temperature.

Autotecnica TY0717617 is a fitment-focused replacement for cooling system repairs where the original thermostat housing has aged, leaked, or lost proper sealing. This part cross-references Autotecnica TY0717617 for the same application.

What It Is Used For

• Replacing a leaking thermostat housing assembly
• Restoring proper coolant flow regulation
• Addressing overheating caused by thermostat or housing wear
• Fixing sealing issues at the coolant inlet connection
• Replacing a cracked or warped plastic housing

Installation Notes and Tips

Verify the opening temperature, housing dimensions, and connector style before installation. Inspect mating surfaces and coolant hoses for wear, and confirm the gasket or seal seats evenly during assembly. This part is listed with guaranteed fitment and is intended for bolt-on service in the specified Lexus applications.

Quality Assurance

Autotecnica backs this part with a 24-month unlimited mileage warranty. The housing is manufactured to factory dimensions and uses temperature-stable materials to support dependable cooling system service.