Stainless steel impeller and 20% increase in flow!
When it comes to cooling, Stewart is the final word in high performance pumps. The ultimate in BMW cooling with a limited lifetime warranty!
Brand:
ES#:
2581452
Mfg#:
888010330
In Stock
$219.99
This product was last offered at the strikethrough price on 06-15-2026
Upgrade to a much more durable connection from your cylinder head to your thermostat! Commonly referred to as a "Mickey Mouse" flange/adapter.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
3552811
Mfg#:
024797ECS01
In Stock
ON SALE!
SAVE 25%
$76.99
This product was last offered at the strikethrough price on 06-13-2026
Looks, performance, and reliability - upgrade your cooling system today!
10X Entries Into Our F80 M3 Sweepstakes Upgrade over the OE achilles heel plastic sides and easily-stripped plastic drain plug.
Brand:
ES#:
3023150
Mfg#:
006084ECS01AKT
In Stock
ON SALE!
SAVE 25%
$420.99
This product was last offered at the strikethrough price on 06-13-2026
The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
4876067
Mfg#:
008682LA02
In Stock
ON SALE!
SAVE 20%
$434.99
This product was last offered at the strikethrough price on 06-13-2026
Includes housing and sealing o-ring
10X Entries Into Our F80 M3 Sweepstakes Low-temp thermostat reduces stresses on engine components and improves performance
Brand:
ES#:
4158502
Mfg#:
11537586885
In Stock
ON SALE!
SAVE 20%
$93.99
This product was last offered at the strikethrough price on 05-02-2026
Ultra-efficient dual-core, triple-pass radiator from the leader in E46 M3 cooling. Cooler engine temps mean more power and longer life of engine components.
2X Entries Into Our F80 M3 Sweepstakes
Retains OEM fitment with superior looks and durability. Includes stainless steel hose clamps and pre-installed factory style connectors.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
5435391
Mfg#:
008643LA03
In Stock
$253.99
This product was last offered at the strikethrough price on 06-13-2026
The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
5425426
Mfg#:
050595LA03
Ships on Oct 5, 2026
ON SALE!
SAVE 20%
$509.99
This product was last offered at the strikethrough price on 06-13-2026
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.
