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This product was last offered at the strikethrough price on
08-17-2026
To make sure your temperature readings are as accurate as possible, replace your temperature sensor with a high quality OEM Bosch temperature sensor.
OEM replacement for BMW part # 13621709967, 13621709966, and 13621284397. Bosch coolant temperature sensor mounted in the cylinder head on models with the M42, M50 and S50 engines.
Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.
As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
This item fits the following BMWs:
1988-1991 E30 BMW 318i 318is 318ic M3
1992-1995 E36 BMW 318i 318is 318ti 318ic 325i 325is 325ic M3
3/1987-1988 E28 BMW 528e
1985-1988 E28 BMW535i 535is M5
1989-1995 E34 BMW 525i 535i M5
1985-1989 E24 BMW 635csi M6
1984-1987 E23 BMW 735i
1988-1992 E32 BMW 735i 735il
This product was last offered at the strikethrough price on
08-19-2026
This product was last offered at the strikethrough price on
08-19-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
The BMW E28 M5 and E24 M6, two iconic early M cars, have solidified their status as sought-after classics from the 1980s. However, the cooling systems from that era fall short when compared to modern designs, often presenting issues with durability and efficiency. To tackle this problem, CSF and A/C Solutions collaborated to create a High-Performance All-Aluminum Radiator specifically for the E28 and E24, combining superior cooling performance with a precise factory fit.
The original OE radiator featured an aluminum core paired with plastic end tanks—a design notorious among BMW enthusiasts for eventual failures, such as leaks at the seams or cracking plastic tanks caused by years of heat cycling.
CSF's Classic Series Radiator offers significant upgrades over the original design, most notably its advanced all-aluminum construction. Built with TIG-welded, 100% aluminum materials, this radiator provides enhanced strength, durability, and longevity, ensuring it can withstand even the most demanding driving conditions. With a 1-row 31mm aluminum core, CSF's B-tube technology, and nearly twice the number of cooling fins and tubes compared to the OE radiator, the new design delivers exceptional cooling performance. Additionally, its multi-louvered fins are optimized to maximize airflow, ensuring superior thermal efficiency. The radiator installs seamlessly in the factory location, requiring no modifications or cutting.
Another thoughtful upgrade is the addition of a drain plug. Unlike the factory radiator, which lacks this feature, CSF's new design simplifies tasks like coolant flushes or engine removals, making maintenance more convenient for enthusiasts. This small but practical detail further enhances the overall user experience.
Features:
1-Row – 31mm Ultra-High-Performance Core
Cooling Tubes with CSF’s Exclusive B-Tube Technology
6.5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact
CNC Machined Mounting Brackets and OEM Style Inlet/Outlet
100% All Aluminum TIG-Welded Construction
Satin Black Finish for an OEM+ Look and Feel
True Plug-and-Play “Drop-in Fit” Installation Requires Absolutely No Modifications
Two M14x1.5 Temperature Sensor Ports on left side tank (Plugs Included)
Individually Leak and Pressure Tested
2-Year Limited Warranty
Applications:
1984-1988 BMW E28 M5 (US and Euro)
1984-1989 BMW E24 M635CSi
1987-1989 BMW E24 M6
OEM Part Numbers:
BMW: 17112226082
BMW: 17112225061
BMW: 17112226018
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
08-31-2026
This product was last offered at the strikethrough price on
08-31-2026
This product was last offered at the strikethrough price on
08-31-2026
This product was last offered at the strikethrough price on
08-31-2026
This product was last offered at the strikethrough price on
08-31-2026
This product was last offered at the strikethrough price on
08-31-2026
This product was last offered at the strikethrough price on
08-31-2026
This product was last offered at the strikethrough price on
08-31-2026
This product was last offered at the strikethrough price on
08-31-2026
This product was last offered at the strikethrough price on
08-31-2026
Thermostat 80C is a crucial component for controlling the temperature in BMW engines, ensuring optimal performance and protection. Designed to open at 80°C, this thermostat helps your engine reach its ideal operating temperature quickly while preventing overheating. Engineered specifically for BMW vehicles, the Thermostat 80C ensures precise temperature regulation, enhancing both engine efficiency and longevity. Available at Turner Motorsport, this direct-fit replacement offers easy installation and reliable performance.
The Thermostat 80C from Turner Motorsport is the perfect choice for BMW owners looking to maintain optimal engine temperature, ensuring smooth operation and extending the life of their vehicle.