Green coolant temp sensor, located commonly in the cooling flange near the head
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
5X Entries Into Our F80 M3 Sweepstakes We Price Match - Give Us A Call or Chat! For vehicles with VIN from 3B-X-491,581, split is in the 1999 model year.
Brand:
ES#:
8541
Mfg#:
059919501A
In Stock
$11.11
This product was last offered at the strikethrough price on 04-30-2026
Also called the viscous coupling. a commonly overlooked source of overheating
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Seals the oil filter adapter to the engine block
2X Entries Into Our F80 M3 Sweepstakes We Price Match - Give Us A Call or Chat! For vehicles with AUG or AWM engine codes only.
Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank
2X 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
