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BMW E66 745Li N62 4.4L

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BMW E66 745Li N62 4.4L Engine Cooling Parts

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Thermostat - 105C

ES#205475 - 11537586885 - Thermostat - 105C - Includes housing and sealing o-ring - Genuine BMW - BMW

Includes housing and sealing o-ring

Brand:
Genuine BMW - Corporate Logo
ES#:
205475
Mfg#:
11537586885
Ships in 3 Business Days
8% off MSRP

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

$135.99

This product was last offered at the strikethrough price on
05-06-2026

$124.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal Oil Cooler - 19 Row, with Thermostat

ES#2764437 - MM0CULT - Universal Oil Cooler - 19 Row, with Thermostat - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764437
Mfg#:
MM0CULT
In Stock at Vendor
$599.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

New Water Pump - With O-Ring

ES#2748228 - 11517524551 - New Water Pump - With O-Ring - High quality, German-made pump featuring a metal impeller - Geba - BMW

High quality, German-made pump featuring a metal impeller Vehicles with a production date from 09/2003

Brand:
Geba - Corporate Logo
ES#:
2748228
Mfg#:
11517524551
Ships in 1-2 days
$214.99

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

$208.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pipe Service Kit

ES#2724958 - 11141439975KT1 - Water Pipe Service Kit - Addresses common low-mileage failure caused by poor OEM o-ring/pipe design. More advanced service kit with German-made Geba water pump with metal impeller - Assembled By ECS - BMW

Addresses common low-mileage failure caused by poor OEM o-ring/pipe design. More advanced service kit with German-made Geba water pump with metal impeller 10X Entries For Our 25th Anniversary Sweepstakes!
Innovative collapsible water pipe greatly reduces time required to complete service!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2724958
Mfg#:
11141439975KT1
Ships in 6 Business Days
ON SALE!
$1112.99

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

$1026.20 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Universal 12" Electric Fan - Black

ES#4147274 - 30100375 - Universal 12" Electric Fan - Black - 861 CFM. High performance puller fan with straight blades. - Spal - Audi BMW MINI

861 CFM. High performance puller fan with straight blades.

Brand:
Spal - Corporate Logo
ES#:
4147274
Mfg#:
30100375
In Stock at Vendor
13% off MSRP

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

$114.99

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

$99.99 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.

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

8 Piece Fluid Line Stopper Kit

ES#2748908 - 005939SCH01A - 8 Piece Fluid Line Stopper Kit - This kit contains 2 of each size Shark type clamps designed to make a temporary seal on the end of an open line. Includes clamps with 5/16",3/8" and 1/2" open slot. Also contains double seal clamps for banjo style fittings. - Schwaben - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

This kit contains 2 of each size Shark type clamps designed to make a temporary seal on the end of an open line. Includes clamps with 5/16",3/8" and 1/2" open slot. Also contains double seal clamps for banjo style fittings. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Schwaben - Corporate Logo
ES#:
2748908
Mfg#:
005939SCH01A
In Stock
ON SALE! SAVE 23%
$54.99

This product was last offered at the strikethrough price on
04-26-2026

$42.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Relief Flush

ES#2608077 - 040202 - Radiator Relief Flush - Concentrated cleansing agent that effectively cleans your cooling system! - DEI - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Concentrated cleansing agent that effectively cleans your cooling system!

Brand:
DEI - Corporate Logo
ES#:
2608077
Mfg#:
040202
In Stock
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Electric Water Pump

ES#2792715 - 64116922699 - Auxiliary Electric Water Pump - Improves coolant flow allowing hot air to blow while the engine is off - Pierburg - BMW

Improves coolant flow allowing hot air to blow while the engine is off

Brand:
Pierburg - Corporate Logo
ES#:
2792715
Mfg#:
64116922699
Ships in 1-2 days
$130.27 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal Fan Mount Kit

ES#2764772 - MMFANMOUNT - Universal Fan Mount Kit - Through radiator mounts for custom applications - Mishimoto - Audi BMW Volkswagen MINI

Through radiator mounts for custom applications

Brand:
Mishimoto - Corporate Logo
ES#:
2764772
Mfg#:
MMFANMOUNT
In Stock
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement kit - 90C

ES#2966600 - 11537586885KT - Thermostat Replacement kit - 90C - Low-temp thermostat reduces stresses on engine components and improves performance - Assembled By ECS - BMW

Low-temp thermostat reduces stresses on engine components and improves performance 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2966600
Mfg#:
11537586885KT
In Stock
ON SALE!
$146.99

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

$142.76 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Radiator Stop-Leak - 250mL

ES#3514566 - 20132 - Radiator Stop-Leak - 250mL - Put a stop to that coolant leak! - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Put a stop to that coolant leak! 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3514566
Mfg#:
20132
In Stock
25% off MSRP

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

$15.95

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

$11.99 USD
Free Shipping
on orders $49 and up

Auxiliary Fan Switch

ES#1866446 - 13621433077 - Auxiliary Fan Switch - Comes with related o-ring - FAE - BMW

Comes with related o-ring

Brand:
FAE - Corporate Logo
ES#:
1866446
Mfg#:
13621433077
In Stock
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal 16" Electric Fan - Black

ES#3247470 - 30102048 - Universal 16" Electric Fan - Black - 1959 cfm. High performance pusher fan with curved blades. - Spal - Audi BMW MINI

1959 cfm. High performance pusher fan with curved blades.

Brand:
Spal - Corporate Logo
ES#:
3247470
Mfg#:
30102048
In Stock
$207.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Coolant System Tester

ES#199581 - 83300494417 - Universal Coolant System Tester - Checks the engine cooling system for water tightness to ensure there are no leaks. - Genuine BMW - BMW MINI

Checks the engine cooling system for water tightness to ensure there are no leaks.

Brand:
Genuine BMW - Corporate Logo
ES#:
199581
Mfg#:
83300494417
Ships in 3 Business Days
$796.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Replacement Universal Oil Cooler - 19 Row

ES#2855412 - MM0C-19 - Replacement 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

Brand:
Mishimoto - Corporate Logo
ES#:
2855412
Mfg#:
MM0C-19
In Stock
$218.99

This product was last offered at the strikethrough price on
05-06-2026

$196.99 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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