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BMW M3 Radiator Parts

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High Performance Water Pump - With O-Ring

ES#2581452 - 888010330 - High Performance Water Pump - With O-Ring - Stainless steel impeller and 20% increase in flow! - Stewart Components - BMW

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:
Stewart Components - Corporate Logo
ES#:
2581452
Mfg#:
888010330
In Stock
$219.99

This product was last offered at the strikethrough price on
06-15-2026

$204.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Installation Kit with Thermostat

It's no secret that modern turbocharged BMW engines run hot. Whether you're turning laps at the track or sitting in summer traffic, high oil temperatures are the enemy of engine longevity and performance. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5481206
Mfg#:
OTN54.T85KT2
Ships in 1-3 days
ON SALE!
$390.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mosselman S55 Billet Oil Thermostat - Silver

ES#4446093 - OTS55.T85 - Mosselman S55 Billet Oil Thermostat - Silver - The MSL thermostat ensures a cooler oil temperature which will result in more stable performance - Mosselman Turbosystems - BMW

The MSL thermostat ensures a cooler oil temperature which will result in more stable performance

Brand:
Mosselman Turbosystems - Corporate Logo
ES#:
4446093
Mfg#:
OTS55.T85
Ships in 4 Business Days
$459.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Billet Cylinder Head Outlet Hose Adapter

ES#3552811 - 024797ECS01 - ECS Billet Cylinder Head Outlet Hose Adapter - Upgrade to a much more durable connection from your cylinder head to your thermostat! Commonly referred to as a "Mickey Mouse" flange/adapter. - ECS - BMW

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 For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
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

$57.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Performance Aluminum Radiator - M50 M52 S50 S52

ES#3023150 - 006084ecs01aKT - High Performance Aluminum Radiator - M50 M52 S50 S52 - Looks, performance, and reliability - upgrade your cooling system today! - ECS - BMW

Looks, performance, and reliability - upgrade your cooling system today! 10X Entries For Our 25th Anniversary Sweepstakes!
Upgrade over the OE achilles heel plastic sides and easily-stripped plastic drain plug.

Brand:
ECS - Corporate Logo
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

$315.71 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 High Performance Aluminum Radiator

ES#2992660 - 7058 - E46 M3 High Performance Aluminum Radiator - 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. - CSF - BMW

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 For Our 25th Anniversary Sweepstakes!

Brand:
CSF - Corporate Logo
ES#:
2992660
Mfg#:
7058
In Stock
$645.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CSF Engine Oil Cooler - S55 F80/F82/F83/F87C

ES#4623378 - 8220 - CSF Engine Oil Cooler - S55 F80/F82/F83/F87C - The factory ducting and shrouds are all reused with no modifications necessary. - CSF - BMW

The factory ducting and shrouds are all reused with no modifications necessary. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
CSF - Corporate Logo
ES#:
4623378
Mfg#:
8220
In Stock
$549.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Aluminum Water Pump Pulley - Black

ES#2855687 - 001977ECS03A - ECS Aluminum Water Pump Pulley - Black - Finally, a durable, attractive water pump pulley that won't break! - ECS - BMW

Finally, a durable, attractive water pump pulley that won't break! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2855687
Mfg#:
001977ECS03A
In Stock
ON SALE!
$104.99

This product was last offered at the strikethrough price on
06-13-2026

$99.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#2955401 - 17117562079 - Radiator - Replace your leaking radiator. Multi-fit, work with BMWs with an automatic transmissions. - Nissens - BMW
ECS Tuning recommends this product.

Replace your leaking radiator. Multi-fit, work with BMWs with an automatic transmissions. We Price Match - Give Us A Call or Chat!

Brand:
Nissens - Corporate Logo
ES#:
2955401
Mfg#:
17117562079
In Stock
$174.52 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BigPack BMW M3 E90/E92 DKG DCT

ES#4849634 - BIG-M3-DCT - BigPack BMW M3 E90/E92 DKG DCT - The Do88 BigPack BMW M3 E90/E92 DKG DCT cooling kit is engineered to meet the highest standards, providing BMW M3 owners with a reliable, efficient, and performance-driven cooling solution. - DO88 - BMW

The Do88 BigPack BMW M3 E90/E92 DKG DCT cooling kit is engineered to meet the highest standards, providing BMW M3 owners with a reliable, efficient, and performance-driven cooling solution. For BMW M3 E90 and E92 models with DKG/DCT transmission

Brand:
DO88 - Corporate Logo
ES#:
4849634
Mfg#:
BIG-M3-DCT
Ships on Aug 5, 2026
Auto Notify
$3041.99

This product was last offered at the strikethrough price on
07-15-2026

$2616.99 USD

Performance Thermostat - 90C

ES#2807159 - 11537586885-90C - Performance Thermostat - 90C - Includes housing and sealing o-ring - Hamburg Tech - BMW

Includes housing and sealing o-ring We Price Match - Give Us A Call or Chat! Low-temp thermostat reduces stresses on engine components and improves performance

Brand:
Hamburg Tech - Corporate Logo
ES#:
2807159
Mfg#:
11537586885-90C
In Stock
$114.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High-Performance Engine Oil Cooler - G8X

ES#4727508 - 8266 - High-Performance Engine Oil Cooler - G8X - Keep your engine oil tempratures in check even under the harshest of track conditions with CSF's performance S58 oil cooler! - CSF - BMW

Keep your engine oil tempratures in check even under the harshest of track conditions with CSF's performance S58 oil cooler! 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
CSF - Corporate Logo
ES#:
4727508
Mfg#:
8266
In Stock
$599.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Silicone Radiator Hose Kit

ES#2718145 - 003628ECS01 - Silicone Radiator Hose Kit - Retains OEM fitment with superior looks and durability! - ECS - BMW

Retains OEM fitment with superior looks and durability! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2718145
Mfg#:
003628ECS01
In Stock
ON SALE! SAVE 25%
$113.99

This product was last offered at the strikethrough price on
06-13-2026

$85.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E36 High Performance Aluminum Radiator

ES#2992603 - 3054 - E36 High Performance Aluminum Radiator - Featuring an all-aluminum tank and core. Lower engine temperatures mean more power and longer life of engine components! - CSF - BMW

Featuring an all-aluminum tank and core. Lower engine temperatures mean more power and longer life of engine components! 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
CSF - Corporate Logo
ES#:
2992603
Mfg#:
3054
In Stock
$395.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Aluminum Heat Exchanger - Polished Finish

ES#3194402 - 8075 - Performance Aluminum Heat Exchanger - Polished Finish - Keep intake temperatures low with this dual-core heat exchanger! - CSF - BMW

Keep intake temperatures low with this dual-core heat exchanger! 2X Entries For Our 25th Anniversary Sweepstakes!
Drop-in fitment that requires no modifications

Brand:
CSF - Corporate Logo
ES#:
3194402
Mfg#:
8075
In Stock
$699.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Aluminum Radiator

ES#2764251 - MMRADE3692 - Performance Aluminum Radiator - Upgrade your cooling - lifetime warranty! - Mishimoto - BMW

Upgrade your cooling - lifetime warranty!

Brand:
Mishimoto - Corporate Logo
ES#:
2764251
Mfg#:
MMRADE3692
In Stock
$360.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Radiator Parts

Keep it cool with a new radiator or upgrade for better cooling capacity with aftermarket performance radiator options.

Let us help you find the parts that fit your BMW

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