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BMW E46 323i M52 2.5L

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BMW E46 323i M52 2.5L Engine Cooling Parts

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Universal Oil Cooler - 19 Row

ES#2764082 - MM0CUL - Universal Oil Cooler - 19 Row - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764082
Mfg#:
MM0CUL
In Stock at Vendor
$536.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 Radiator Hose - Lower

ES#24801 - 11531436408 - E46 Radiator Hose - Lower - A common source of cooling system failure - Genuine BMW - BMW

A common source of cooling system failure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
24801
Mfg#:
11531436408
In Stock
$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

M52TU/M54 Mechanical Thermostat Conversion

ES#4709399 - 008785LA01T - M52TU/M54 Mechanical Thermostat Conversion - Upgrade from your all-in-one plastic thermostat assembly to a stout and reliable billet mechanical thermostat setup! - Turner Motorsport - BMW

Upgrade from your all-in-one plastic thermostat assembly to a stout and reliable billet mechanical thermostat setup! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4709399
Mfg#:
008785LA01T
Ships on Sep 22, 2026
ON SALE!
Starting at $306.77 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#4773000 - 64218376153 - Expansion Tank Hose - Expansion tank to heater core - Bremmen Parts - BMW

Expansion tank to heater core affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4773000
Mfg#:
64218376153
Ships on Sep 23, 2026
Auto Notify
ON SALE! SAVE 20%
$47.99

This product was last offered at the strikethrough price on
05-02-2026

$38.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 3 plus

ES#3706700 - 17119071519gKT2 - ECS Cooling System Refresh Kit - Level 3 plus - The ultimate cooling refresh kit - with aftermarket components, featuring an ECS Aluminum Pulley, Stewart water pump and Aluminum Radiator - Assembled By ECS - BMW

The <font color='red'> ultimate</font> cooling refresh kit - with aftermarket components, featuring an ECS Aluminum Pulley, Stewart water pump and Aluminum Radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For Automatic Vehicles Only!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3706700
Mfg#:
17119071519GKT2
Ships in 6 Business Days
$1481.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

SuperCool Performance Coolant - Pre-Mixed - 1 Gallon

ES#4338527 - 81215 - SuperCool Performance Coolant - Pre-Mixed - 1 Gallon - Redline's state of the art coolant offering premium performance and protection. Fortified with Waterwetter! - Redline - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Redline's state of the art coolant offering premium performance and protection. Fortified with Waterwetter! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Redline - Corporate Logo
ES#:
4338527
Mfg#:
81215
In Stock
$54.99 USD
Free Shipping
on orders $49 and up

Mishimoto Universal Curved Blade Electrical Fan - 16"

ES#4265264 - MMFAN-16C - Mishimoto Universal Curved Blade Electrical Fan - 16" - 1850 CFM. High performance fan with curved blades. - Mishimoto - Audi BMW Volkswagen Mercedes Benz MINI Porsche

1850 CFM. High performance fan with curved blades. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
4265264
Mfg#:
MMFAN-16C
In Stock
$117.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump - Remanufactured

ES#2534328 - 11517527799 - Water Pump - Remanufactured - Features a metal impeller for reliability - URO - BMW

Features a metal impeller for reliability affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534328
Mfg#:
11517527799
In Stock
$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW Water Pump Pulley Locking Tool

ES#2593813 - 001170SCH01A - BMW Water Pump Pulley Locking Tool - Make your water pump or fan clutch a simple install. Holds the head of pulley bolts for fast fan clutch and water pump pulley removal. - Schwaben - BMW
ECS Tuning recommends this product.

Make your water pump or fan clutch a simple install. Holds the head of pulley bolts for fast fan clutch and water pump pulley removal. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Schwaben - Corporate Logo
ES#:
2593813
Mfg#:
001170SCH01A
In Stock
ON SALE! SAVE 30%
$43.99

This product was last offered at the strikethrough price on
05-02-2026

$30.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Fan Shroud

ES#2709708 - 17111436259 - Cooling Fan Shroud - Create your best air flow - URO - BMW

Create your best air flow affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2709708
Mfg#:
17111436259
In Stock
$52.89 USD
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#178073 - 64218376153 - Expansion Tank Hose - Expansion tank to heater core - Genuine BMW - BMW

Expansion tank to heater core affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
178073
Mfg#:
64218376153
In Stock
13% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$79.29

This product was last offered at the strikethrough price on
06-04-2026

$69.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fluid Level Sensor

ES#2874178 - 17137553919 - Fluid Level Sensor - This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level - Febi - BMW MINI

This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2874178
Mfg#:
17137553919
In Stock
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Oil Cooler - 19 Row, with Thermostat - Black

ES#2764104 - MM0CULTBK - Universal Oil Cooler - 19 Row, with Thermostat - Black - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764104
Mfg#:
MM0CULTBK
Ships in 4 Business Days
$599.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2777575 - 17117639022 - Expansion Tank Cap - Replace worn or missing pieces. - Genuine BMW - BMW

Replace worn or missing pieces. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2777575
Mfg#:
17117639022
Ships in 1 Business Day
21% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$34.96

This product was last offered at the strikethrough price on
06-04-2026

$27.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#3023872 - 17111742231 - Expansion Tank Cap - Replace when performing cooling service. - Mahle-Behr - BMW

Replace when performing cooling service. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
3023872
Mfg#:
17111742231
In Stock
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AAF Aluminum Radiator Mounting Kit - E46

ES#4501373 - 11641 - AAF Aluminum Radiator Mounting Kit - E46 - Mount your new radiator the right way! - Advanced Auto Fabrication - BMW

Mount your new radiator the right way! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Advanced Auto Fabrication - Corporate Logo
ES#:
4501373
Mfg#:
11641
In Stock at Vendor
$189.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime 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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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