Replacement thermostat With Housing for B46 and B48
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! For vehicles with the earlier Gen1 B48/B46 only - not compatible with the later Gen2 B48 (TU) engines
Brand:
ES#:
4686052
Mfg#:
11537644811
In Stock
ON SALE!
SAVE 15%
$223.99
This product was last offered at the strikethrough price on 05-02-2026
Includes heat exchanger and gaskets. Manufactured from cast aluminum instead of plastic for improved durability - Rein Part Number HEU0115
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Brand:
ES#:
4820375
Mfg#:
11428596283
In Stock
$393.99
This product was last offered at the strikethrough price on 12-08-2025
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.
Aluminum Connector, Gasket, and Temperature Sensor
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Connects the coolant expansion tank to the upper radiator hose. Featuring durable silicone construction & pre-installed factory connectors for easy installation!
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Brand:
ES#:
4877300
Mfg#:
006402LA03
In Stock
ON SALE!
SAVE 30%
$101.99
This product was last offered at the strikethrough price on 05-02-2026
Aluminum construction for improved durability over stock design! Includes an integrated thermostat.
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Brand:
ES#:
4759997
Mfg#:
11538635689M
In Stock
ON SALE!
SAVE 20%
$125.99
This product was last offered at the strikethrough price on 05-02-2026
Retains OEM fitment with superior looks and durability. Pre-assembled with factory connectors for easy installation! Replaces OE# 17127604542.
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Brand:
ES#:
4820972
Mfg#:
008642LA02
In Stock
ON SALE!
$73.99
This product was last offered at the strikethrough price on 05-02-2026
A common item to crack causing leaks.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4669228
Mfg#:
11537598865
In Stock
ON SALE!
SAVE 10%
$77.99
This product was last offered at the strikethrough price on 05-02-2026
Replaces the stock plastic flange found in the thermostat to cylinder head coolant hose that is known to fail
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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
