Includes both the Engine Coolant Expansion Tank and Charge Air Cooler Coolant Expansion Tank, plus both of the expansion tank caps
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
4776041
Mfg#:
17138677649EKT
Ships in 1 Business Day
ON SALE!
$204.99
This product was last offered at the strikethrough price on 10-31-2026
Overheating, a leaking radiator or a stuck thermostat are common on aging E46s, and the surrounding parts usually aren't far behind.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
5527219
Mfg#:
BMW101346KT
Ships in 7 Business Days
ON SALE!
$773.99
This product was last offered at the strikethrough price on 10-20-2026
Upgrade to AutoTecknic’s Pre-Preg Carbon Fiber Coolant Expansion Tank Cap Cover in Red Carbon and give your BMW the exclusive, high-performance look it deserves.
Universal cooler used for: engine oil, transmission oil, power-steering, differential oil, and as a water/coolant heat exchanger.
2X Entries Into Our F80 M3 Sweepstakes Universal fitment design - modifications may be necessary to run this cooler
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.
Partial Replacement
