Also called a Heat Management Module, this electronic thermostat controls coolant flow based on engine temperatures
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! For models with the B48D, B46D, or B46X engines only - Not for the earlier Gen1 or later Gen3 engines
Brand:
ES#:
5433734
Mfg#:
11538642560
In Stock
ON SALE!
$356.99
This product was last offered at the strikethrough price on 05-02-2026
Main cylinder head gasket 1.00MM (+0.3) (plus size)
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with production from 07/2015 with the B46/B48 Gen1 engine
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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
5470515
Mfg#:
11537644811
Ships in 3 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
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 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
Allows oil to drain from the turbo and return back to the engine
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat! For models with the Gen1 B46/B48 engine only - Not for the Gen2 TU engines
Serious engine oil cooling for the most demanding engines
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For custom applications only. Not a direct bolt on.
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.
