Part numbers are:
006 545 64 24 (original equipment in OM603 only) 105ºC/128ºC with blue top
006 545 42 24 (used in M102 and OM601 engines) 105ºC/120ºC with gray top
006 545 61 24 (used in M102-3-4 and OM602 engines) 100ºC/110ºC with red top

Don't forget to install the crush washer if you change switches.

__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970