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BMW G01 X3 sDrive30i B46 2.0L

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BMW G01 X3 sDrive30i B46 2.0L Engine Cooling Parts

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Coolant Expansion Tank

ES#5425971 - 17135A6A030 - Coolant Expansion Tank - Replaces missing or cracked coolant expansion tank. - Meyle - BMW

Replaces missing or cracked coolant expansion tank. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Meyle - Corporate Logo
ES#:
5425971
Mfg#:
17135A6A030
In Stock
ON SALE!
$75.99

This product was last offered at the strikethrough price on
07-14-2026

$73.71 USD
Free Shipping
on orders $49 and up
Scratch and Dent Item

Universal 12" Electric Fan - Black *Scratch And Dent*

ES#4920624 - 30102029SD - Universal 12" Electric Fan - Black *Scratch And Dent* - Scratch & Dent - Audi BMW MINI

ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product!

Brand:
Scratch & Dent - Corporate Logo
ES#:
4920624
Mfg#:
30102029SD
In Stock
ON SALE! SAVE 39%
$207.99

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

$127.00 USD
Free Shipping
on orders $49 and up

Coolant Hose Connector - Plastic

Located on the side of the engine block, includes gasket 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5446086
Mfg#:
11118511205P
In Stock
ON SALE! SAVE 20%
$15.99

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

$12.79 USD
Free Shipping
on orders $49 and up

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 For Our 25th Anniversary 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

Rein Coolant Expansion Tank - With Cap

ES#5470511 - 17135A6A030C - Rein Coolant Expansion Tank - With Cap - Replace your old brittle expansion tank - Rein - BMW

Replace your old brittle expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5470511
Mfg#:
17135A6A030C
Ships in 3 Business Days
$99.99 USD

Coolant Expansion Tank

ES#5491333 - 171386106612 - Coolant Expansion Tank - Coolant reservoir tank dedicated to the intake charge air cooler system - Rein - BMW

Coolant reservoir tank dedicated to the intake charge air cooler system 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5491333
Mfg#:
171386106612
Ships in 3 Business Days
$49.99 USD

Expansion Tank Kit

ES#5491326 - 17138610661 - Expansion Tank Kit - Coolant reservoir tank dedicated to the intake charge air cooler system - Rein - BMW

Coolant reservoir tank dedicated to the intake charge air cooler system 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5491326
Mfg#:
17138610661
Ships in 3 Business Days
$56.99 USD
Free Shipping
on orders $49 and up

Black Engine Coolant Reservoir Cap

ES#4882996 - 201-0393-BLK - Black Engine Coolant Reservoir Cap - Functional and stunningly stylish way to add a nice touch to any engine bay! - Precision Raceworks - BMW

Functional and stunningly stylish way to add a nice touch to any engine bay!

Brand:
Precision Raceworks - Corporate Logo
ES#:
4882996
Mfg#:
201-0393-BLK
Ships in 9 Business Days
$115.99

This product was last offered at the strikethrough price on
01-22-2026

$109.99 USD
Free Shipping
on orders $49 and up

Black Auxiliary Coolant Reservoir Cap

ES#4882954 - 201-0394-BLK - Black Auxiliary Coolant Reservoir Cap - Functional and stunningly stylish way to add a nice touch to any engine bay - Precision Raceworks - BMW

Functional and stunningly stylish way to add a nice touch to any engine bay

Brand:
Precision Raceworks - Corporate Logo
ES#:
4882954
Mfg#:
201-0394-BLK
Ships in 9 Business Days
$99.99

This product was last offered at the strikethrough price on
01-22-2026

$94.99 USD
Free Shipping
on orders $49 and up

Cylinder Head Gasket

ES#4940647 - 597.170 - Cylinder Head Gasket - Main cylinder head gasket 1.00MM (+0.3) (plus size) - Elring - BMW MINI

Main cylinder head gasket 1.00MM (+0.3) (plus size) 2X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production from 07/2015 with the B46/B48 Gen1 engine

Brand:
Elring - Corporate Logo
ES#:
4940647
Mfg#:
597.170
Special Order: No Guaranteed ETA
$134.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Cap

Keep your BMW’s cooling system performing exactly as intended with this premium replacement coolant expansion tank cap from Febi Bilstein. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Febi - Corporate Logo
ES#:
5491375
Mfg#:
46221
Special Order: No Guaranteed ETA
$19.99 USD
Free Shipping
on orders $49 and up

Expansion Tank - Vaico

ES#4861046 - 17135A6A030 - Expansion Tank - Vaico - Replace your old and brittle expansion tank. Fits B46 B58 S58 egines - Vaico - BMW

Replace your old and brittle expansion tank. Fits B46 B58 S58 egines We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4861046
Mfg#:
17135A6A030
Special Order: No Guaranteed ETA
$151.99 USD
Free Shipping
on orders $49 and up

Mechanical Water Pump

ES#4714615 - 11518482250 - Mechanical Water Pump - Replace your faulty coolant pump to keep engine temperatures under control - Vaico - BMW

Replace your faulty coolant pump to keep engine temperatures under control We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4714615
Mfg#:
11518482250
Special Order: No Guaranteed ETA
$144.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Housing & Heat Management Module Kit - Level 1

ES#5425168 - g2xb48dofhl1KT - Oil Filter Housing & Heat Management Module Kit - Level 1 - Includes the main components needed to replace the two biggest B48 cooling issues - featuring an upgraded Aluminum Oil Filter Housing and new Coolant Thermostat Module - Assembled By ECS - BMW

Includes the main components needed to replace the two biggest B48 cooling issues - featuring an upgraded Aluminum Oil Filter Housing and new Coolant Thermostat Module 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without Energy Recovery System (S1CEA)
For later models with the B48 Gen2 (B48D) engine only - Not compatible with earlier Gen1 engines

Brand:
Assembled By ECS - Corporate Logo
ES#:
5425168
Mfg#:
G2XB48DOFHL1KT
Back Ordered
Auto Notify
ON SALE!
$1106.99

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

$1018.90 USD
Free Shipping
on orders $49 and up
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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