Stant 13588 Engine Coolant Thermostat

OE Type Thermostat for Import Cooling Systems

Stant 13588 is an engine coolant thermostat built to OE-type dimensions and temperature control for a wide range of Audi, BMW, Jaguar, Mercedes-Benz, Volkswagen, Jeep, Lincoln, and Volvo applications. It opens at 176 degrees Fahrenheit and uses a stainless steel assembly for smooth, consistent operation in everyday cooling system service.

Key Features

• OE Type Thermostat design for factory-style fit and function
• 176 degrees Fahrenheit opening temperature
• Durable material construction for long service life
• Stainless steel assembly engineered for smooth performance
• Bypass plate diameter: 1.46 in.
• Flange diameter without seal: 2.64 in.
• Height from flange to bottom: 1 in.
• Height from flange to top of bridge: 1.19 in.

Product Details

This Stant OE Type Thermostat is built for drivers and technicians who need a direct replacement coolant thermostat with the correct operating temperature and OE-style construction. Part number 13588 is specified for many BMW 325i, BMW 535i, Audi 80 Quattro, Mercedes-Benz 300D, and Jaguar XJ6 applications, along with additional fitments across classic and late-model import platforms. The 176-degree rating supports proper engine warm-up and cooling system regulation in vehicles that call for this temperature specification.

The OE Type Thermostat line focuses on factory-style replacement parts with accurate dimensions and dependable internal movement. For buyers searching for a 176 degree thermostat for BMW M3, Audi A8 Quattro, or Mercedes-Benz 300SD applications, Stant 13588 provides the temperature and form factor needed for service work that follows original equipment requirements.

Fitment Highlights

• Fits 2002-2008 Audi A8 Quattro, N/A
• Fits 1995-1999 BMW M3, N/A
• Fits 1987-1995 BMW 325i, N/A
• Fits 1989-1995 BMW 525i, N/A
• Fits 1988-1997 Jaguar Vanden Plas, N/A
• Fits 1975-1985 Mercedes-Benz 300D, N/A
• Fits 1983-1988 Volkswagen Quantum, N/A

Common Cooling Issues Addressed

• Engine running cooler or hotter than the specified thermostat range
• Delayed warm-up after cold starts
• Temperature fluctuation caused by a worn thermostat element
• Cooling system service on OE-temperature import applications
• Replacement of a thermostat that no longer opens and closes smoothly

Installation Notes and Tips

Verify the required opening temperature and housing style before installation. Confirm flange diameter, bypass plate diameter, and overall height against the original thermostat to ensure proper seating and coolant flow control. Replace coolant and inspect the housing, gasket surfaces, and related cooling components during service for best results.

Quality Assurance

Stant OE Type Thermostat part number 13588 is built with durable materials and a stainless steel assembly to support consistent operation in OE-style cooling system applications. The design follows original equipment intent for fit and temperature control across the listed vehicles.