Rein CTN0076 Engine Coolant Thermostat

OE Thermostat Insert for BMW Cooling Systems

The Rein CTN0076 engine coolant thermostat is an OE-quality thermostat insert built for precise temperature control and consistent cooling system response. It includes a gasket or seal and is calibrated to start opening at 92°C for BMW applications that require this specification.

Key Features

• Engine coolant thermostat insert for BMW cooling system service
• Start to open temperature: 92°C
• Silver finish
• Gasket or seal included
• OE-quality metal and component construction
• Temperature-calibrated for consistent operation
• Part number: CTN0076

Detailed Description

Rein CTN0076 is designed as a direct-fit thermostat insert for BMW engines that use a 92°C opening specification. Rein builds these thermostat inserts with OE-level materials and calibrated response characteristics to match the original cooling system behavior, helping maintain stable engine operating temperature. This part cross-references BMW 11537511083 for the same application. The CTN0076 part number is a practical reference when sourcing an engine coolant thermostat for BMW 318i, 325i, 328i, 528i, Z3, and M3 applications.

Compatible With BMW Applications

• Fits 1998-1999 BMW 323i, N/A
• Fits 1998-1999 BMW 323is, N/A
• Fits 1997-1999 BMW 328i, N/A
• Fits 1996-1999 BMW 328is, N/A, 92c
• Fits 1997-1998 BMW 528i, N/A
• Fits 1997-1998 BMW Z3, N/A
• Fits 1996 BMW 328i, N/A, 92c
• Fits 1992-1995 BMW 318i, N/A
• Fits 1992-1995 BMW 318is, N/A
• Fits 1995 BMW 318ti, N/A
• Fits 1992-1995 BMW 320i, N/A, 92c
• Fits 1992-1995 BMW 325i, N/A, 92c
• Fits 1992-1995 BMW 325is, N/A, 92c
• Fits 1991-1995 BMW 525i, N/A, 92c
• Fits 1994-1995 BMW M3, N/A, 92c
• Fits 1993 BMW 525iT, N/A, 92c

What It Helps Address

• Engine running too cool or too warm due to thermostat wear
• Delayed coolant flow control during warm-up
• Temperature fluctuation in the cooling system
• Cooling system service on BMW models using a 92°C thermostat
• Replacement of a worn or sticking thermostat insert

Installation Notes and Tips

Verify the thermostat housing style and the required opening temperature before installation. Replace the thermostat insert during cooling system service when the original unit shows signs of sticking, slow response, or age-related wear. Confirm the seal seats correctly and follow the vehicle service procedure for coolant refill and bleeding after installation. Use the CTN0076 part number to match the correct BMW thermostat application.

Quality Assurance

Rein positions this thermostat insert as an OE-quality replacement built to meet or exceed original material standards. The calibrated 92°C opening point and included seal support consistent fitment and serviceability for BMW cooling system repairs.