BMW Radiators & Cooling System Overhaul Kits for BMW 3 Series E46 (1999-2005)

Clear BMW chassis
We sell only OEM Behr, Original BMW, or approved aftermarket upgrade radiators for your BMW. It seems BMW took some shortcuts when it came to radiator design and used too many weak materials like plastic for critical connections. The core and sizing of the radiators are generally sufficient for the intended application but problems can occur at hose connections, upper or lower necks, and plastic end tanks. The radiators we sell are all OEM designs to keep the quality high. In some cases the OEM has made design improvements to prevent past issues. There are a number of non-OEM replacement radiators that use even cheaper materials and poor workmanship which only leads to more problems. On some models we offer OEM alternatives that perform as upgrades to the original designs and we also offer full race all-aluminum radiator upgrades that solve all of the issues with plastic radiators.

E46 M3 Fluidyne / Turner Aluminum Radiator Upgrade
Turner Motorsport - Corporate Logo
T#:187009
Mfg#: FHP13X-01E46M
In Stock
$694.95
$694.95

FAE Coolant Temperature Sensor - E46 E39 E82 E9X E60 E63 E38 E65 X3 X5 Z4
FAE - Corporate Logo
T#:2472
Mfg#: 13621433077
In Stock
$19.95
$19.95

Coolant Expansion Tank - E46 (non-M), X3, X5 3.0
Packaged by Turner - Corporate Logo
T#:338020
Mfg#: 17117573781
In Stock
Sale - Save 5% $69.42
Starting at $65.88
Sale - Save 5% $69.42
Starting at $65.88
Genuine BMW Coolant Expansion Tank - E46 M3
Genuine BMW - Corporate Logo
T#:13185
Mfg#: 17112283344
In Stock
22% off MSRP $165.98
$129.00
Free Shipping
22% off MSRP $165.98
$129.00
Free Shipping



Complete Cooling System Overhaul Package - 1999-2006 E46 323i 325i 328i 330i
Packaged by Turner - Corporate Logo
T#:340196
Mfg#: E46COOLINGPACK
In Stock
Sale - Save 5% $374.67
Starting at $357.61
Free Shipping
Sale - Save 5% $374.67
Starting at $357.61
Free Shipping
Expansion Tank Mounting Bracket - E46 - Manual Trans
Genuine BMW - Corporate Logo
T#:13180
Mfg#: 17111436250
In Stock
17% off MSRP $69.43
$57.66
Free Shipping on orders $99 and up
17% off MSRP $69.43
$57.66
Free Shipping on orders $99 and up


E46 323/325/328/330 Manual, Z4 OEM Behr Radiator
Mahle-Behr - Corporate Logo
T#:1219
Mfg#: 17119071518
In Stock
$134.69
$134.69
OEM Style Hose Clamps
Turner Motorsport - Corporate Logo
T#:338927
Mfg#: HOSE-CLAMPS
In Stock
Sale - Save 74% $2.19
Starting at $0.57
Free Shipping on orders $99 and up
Sale - Save 74% $2.19
Starting at $0.57
Free Shipping on orders $99 and up
CSF High Performance Aluminum Radiator - E46 M3
CSF - Corporate Logo
T#:384654
Mfg#: 7058
In Stock
$549.00
$549.00


Expansion Tank Mounting Bracket - E46 E85 Z4 - Auto Trans
Genuine BMW - Corporate Logo
T#:12560
Mfg#: 17111436251
In Stock
17% off MSRP $69.43
$57.66
Free Shipping on orders $99 and up
17% off MSRP $69.43
$57.66
Free Shipping on orders $99 and up

High Performance Cooling System Upgrade - E46 M3
Packaged by Turner - Corporate Logo
T#:557315
Mfg#: E46MPCKT
In Stock
$1,568.49
Free Shipping
$1,568.49
Free Shipping
E46 Non-M Mishimoto Performance Aluminum Radiator
Mishimoto - Corporate Logo
T#:391596
Mfg#: MMRAD-E46
In Stock
Starting at $371.25
Starting at $371.25

Genuine BMW Coolant Expansion Tank
Genuine BMW - Corporate Logo
T#:360752
Mfg#: 17117573781
In Stock
23% off MSRP $120.28
$92.95
Free Shipping
23% off MSRP $120.28
$92.95
Free Shipping

E46 325i/ci 01-05 (M56 Engine) OE BMW Radiator
Genuine BMW - Corporate Logo
T#:5799
Mfg#: 17117513922
In Stock
8% off MSRP $408.51
$375.88
Limited Qty Sale
8% off MSRP $408.51
$375.88
Limited Qty Sale


Complete Cooling System Overhaul Package - 2001-2006 E46 M3
Turner Motorsport - Corporate Logo
T#:338740
Mfg#: TMS338740
In Stock
Starting at $509.30
Free Shipping
Starting at $509.30
Free Shipping
Radiator *Scratch And Dent*
OEM - Corporate Logo
T#:408787
Mfg#: 17117513922SD
In Stock
$267.07
Limited Qty Sale
$267.07
Limited Qty Sale