Includes a genuine 87�C thermostat, housing, o-ring and stretch bolts
10X Entries Into Our F80 M3 Sweepstakes For vehicles with AEB or ATW engine codes only.
Brand:
ES#:
2580971
Mfg#:
030121121BKT1
In Stock
ON SALE!
SAVE 24%
$36.99
This product was last offered at the strikethrough price on 05-02-2026
Updated <font color='green'>Green</font> sensor with square/round connector. Please check existing sensor color
For vehicles with VIN from 3B-X-491,581, 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
For vehicles with VIN from 3B-X-491,581, split is in the 1999 model year.
Connects the lower radiator port to the water pump and expansion tank
We Price Match - Give Us A Call or Chat! For vehicles with AEB or ATW engine codes only, with VIN from 8D-Y-120001, split is in the 2000 model year.
Brand:
ES#:
4696212
Mfg#:
4B0121055F
Ships in 1 day
$50.99
This product was last offered at the strikethrough price on 05-07-2026
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
