Keep an accurate read on your engine’s temperature with the SKP Engine Coolant Temperature Sensor SKTX121. It installs as a direct-fit replacement for a range of classic Mercedes-Benz models, including the 1988-1989 190D [L5-2.5L], 1990-1993 190E [L6-2.6L], 1990-1993 300D [L5-2.5L], 1990-1991 300E [L6-2.6L and L6-3.0L], 1992 300SD [L6-3.4L], 1986-1991 560SEC [V8-5.6L], and 1990-1991 560SEL [V8-5.6L] — see the Buyer’s Guide tab for the full list of covered applications.
- Job it does: Measures engine coolant temperature and sends that signal so the system can adjust fuel delivery, timing, and the temperature reading.
- Direct-fit replacement: Installs in place of the original sensor on the listed Mercedes-Benz applications.
- One per application: The listed vehicles use one sensor each; this listing is for a single unit.
- Country of origin: China.
Signs the original sensor may need replacing include erratic or inaccurate temperature gauge readings, hard cold starts, or a coolant-temperature-related trouble code. If a faulty coolant temperature sensor is the cause, this part replaces it; diagnose the underlying issue before installing.
Interchange: 1712654 · 006 545 45 24 · 0065454524 · TX121. Manufacturer part number SKTX121.
