Updated <font color='green'>Green</font> sensor with square/round connector. Please check existing sensor color
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1 large 4 pin connector and 1 small 10 pin connector
2X Entries Into Our F80 M3 Sweepstakes We Price Match - Give Us A Call or Chat! For vehicles with a 10 pin connector with VIN up to 9M-X-999 000 only, split is in the 1999 model year
Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head
5X Entries Into Our F80 M3 Sweepstakes We Price Match - Give Us A Call or Chat!
Brand:
ES#:
8541
Mfg#:
059919501A
In Stock
$11.11
This product was last offered at the strikethrough price on 04-30-2026
Clean up your engine bay or replace your cracked unit with a new coolant expansion tank
5X Entries Into Our F80 M3 Sweepstakes We Price Match - Give Us A Call or Chat!
Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.
Lifetime Replacement
