Your engine relies on a steady temperature to stay healthy and efficient. With the Rein CTA0079, you’re getting OE-level quality and a frustration-free install that gets your car back to peak performance.
2X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
5470515
Mfg#:
11537644811
Ships in 4 Business Days
$322.99
This product was last offered at the strikethrough price on 06-11-2026
Replacement thermostat With Housing for B46 and B48
2X Entries Into Our F80 M3 Sweepstakes We Price Match - Give Us A Call or Chat! For vehicles with the earlier Gen1 B48/B46 only - not compatible with the later Gen2 B48 (TU) engines
Main pump with metal bracket
10X Entries Into Our F80 M3 Sweepstakes For models with the B48D, B46D, or B46X engines only and without the Energy Recovery System - Not for the earlier Gen1 or later Gen3 engines
Brand:
ES#:
5425181
Mfg#:
11518650988
In Stock
ON SALE!
SAVE 50%
$237.99
This product was last offered at the strikethrough price on 08-18-2026
Includes new oil cooler and gaskets!
2X Entries Into Our F80 M3 Sweepstakes We Price Match - Give Us A Call or Chat! For vehicles with the earlier B46A/B48A (Gen1) Engine Only - Not compatible with the B46D/B48D Engine
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
