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BMW E46 325Ci M54 2.5L

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BMW E46 325Ci M54 2.5L Engine Cooling Parts

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Auxiliary Fan Switch

ES#2684762 - 13621433077 - Auxiliary Fan Switch - Comes with related o-ring - URO - BMW

Comes with related o-ring 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Mounted in lower radiator hose, controls operation of auxiliary fan

Brand:
URO - Corporate Logo
ES#:
2684762
Mfg#:
13621433077
Back Ordered
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

C-Clip Nut

For a ST4.8 screw

Brand:
Genuine BMW - Corporate Logo
ES#:
205424
Mfg#:
07146955207
Ships in 1 day
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#5456617 - 3141362103 - Coolant Temperature Sensor - Built with thermistor technology to maintain signal integrity under extreme temperature cycles, preventing overheating and poor fuel economy. - Meyle - BMW

Built with thermistor technology to maintain signal integrity under extreme temperature cycles, preventing overheating and poor fuel economy. 5X Entries Into Our F80 M3 Sweepstakes

Brand:
Meyle - Corporate Logo
ES#:
5456617
Mfg#:
3141362103
Ships on Dec 10, 2026
$8.99 USD
Free Shipping
on orders $49 and up

E46 Expanding Rivet - Priced Each

ES#2702207 - 17111712963 - E46 Expanding Rivet - Priced Each - Fan shroud expanding clamp/rivet - Vaico - BMW

Fan shroud expanding clamp/rivet We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2702207
Mfg#:
17111712963
Ships in 1 Business Day
$3.99

This product was last offered at the strikethrough price on
05-07-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bleeder Screw with O-Ring for Cooling System

ES#2868197 - 17111712788 - Bleeder Screw with O-Ring for Cooling System - Comes with O-Ring - Febi - BMW

Comes with O-Ring We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2868197
Mfg#:
17111712788
Ships in 1 Business Day
$3.99

This product was last offered at the strikethrough price on
05-07-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Mounting Clamp

ES#2814070 - 17111707777 - Expansion Tank Mounting Clamp - Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank - Hamburg Tech - BMW

Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814070
Mfg#:
17111707777
Ships in 1 Business Day
ON SALE! SAVE 20%
$6.11

This product was last offered at the strikethrough price on
09-03-2026

$4.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Radiator Mount - Priced Each

ES#205342 - 17111178412 - Lower Radiator Mount - Priced Each - Rubber lower mount for your radiator - MTC - BMW

Rubber lower mount for your radiator

Brand:
MTC - Corporate Logo
ES#:
205342
Mfg#:
17111178412
Back Ordered
$2.03 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring - Priced Each

ES#2581151 - 13621743299 - O-Ring - Priced Each - Replacement o-ring for the temperature sensor - Victor Reinz - BMW

Replacement o-ring for the temperature sensor

Brand:
Victor Reinz - Corporate Logo
ES#:
2581151
Mfg#:
13621743299
Ships in 1 Business Day
$1.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Gasket

ES#4316576 - 11537509357 - Thermostat Housing Gasket - Needs to be replaced once removed - URO - BMW

Needs to be replaced once removed 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4316576
Mfg#:
11537509357
In Stock
$2.99 USD
Free Shipping
on orders $49 and up

Phillips Head Screw

ES#14547 - 07119904307 - Phillips Head Screw - M4x6 - Genuine BMW - BMW MINI

M4x6

Brand:
Genuine BMW - Corporate Logo
ES#:
14547
Mfg#:
07119904307
Ships in 7 Business Days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CSF Universal Large Single-Pass Cooler

ES#5470103 - 8371 - CSF Universal Large Single-Pass Cooler - Universal cooler used for: engine oil, transmission oil, power-steering, differential oil, and as a water/coolant heat exchanger. - CSF - Audi BMW Volkswagen Mercedes Benz MINI

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

Brand:
CSF - Corporate Logo
ES#:
5470103
Mfg#:
8371
Ships in 3 Business Days
$499.00 USD
Free Shipping

Essentials Bundle

ES#5435255 - MMB-E46-002 - Essentials Bundle - The Mishimoto Essentials Bundle is a comprehensive cooling solution designed to address the notorious "weak points" of the BMW E46 cooling system. - Mishimoto - BMW

The Mishimoto Essentials Bundle is a comprehensive cooling solution designed to address the notorious "weak points" of the BMW E46 cooling system. For vehicles with manual transmission

Brand:
Mishimoto - Corporate Logo
ES#:
5435255
Mfg#:
MMB-E46-002
Ships in 3 Business Days
$1127.99 USD

Thermostat With Housing

ES#4726368 - 11537509227 - Thermostat With Housing - A common item to crack causing leaks - Vemo - BMW

A common item to crack causing leaks

Brand:
Vemo - Corporate Logo
ES#:
4726368
Mfg#:
11537509227
Ships in 1 Business Day
$175.00

This product was last offered at the strikethrough price on
05-07-2026

$170.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 3

ES#2497307 - 17119071519KT3 - ECS Cooling System Refresh Kit - Level 3 - The ultimate kit to cover all the necessary components - featuring OEM contents - Genuine BMW - BMW

The <font color='red'> ultimate</font> kit to cover all the necessary components - featuring OEM contents For vehicles with automatic transmission only and production date up to 09/2002

Brand:
Genuine BMW - Corporate Logo
ES#:
2497307
Mfg#:
17119071519KT3
Ships in 3 Business Days
$2327.99 USD
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 3

ES#2497304 - 17119071517KT2 - ECS Cooling System Refresh Kit - Level 3 - The ultimate cooling refresh kit - with OEM components - Genuine BMW - BMW

The <font color='red'> ultimate</font> cooling refresh kit - with OEM components For vehicles with manual transmission only and production date from 05/2005

Brand:
Genuine BMW - Corporate Logo
ES#:
2497304
Mfg#:
17119071517KT2
Ships in 3 Business Days
$2304.99

This product was last offered at the strikethrough price on
09-09-2026

$2303.99 USD
This product is lifetime replacement eligible Partial Replacement

More About Engine Cooling Parts

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.

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