BMW G23 430i B46 2.0L Engine Coolant Flanges & Parts

Includes the components needed to replace the two biggest B48 cooling issues, plus most of the "while you are in there" parts we highly recommend replacing - featuring an Aluminum Oil Filter Housing, Coolant Thermostat Module, and coolant pump assembly! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without Energy Recovery System (S1CEA)
For Pre-LCI models with the B48 Gen2 (B48D) engine only - Not compatible with later Gen3 engines

Brand:

ES#:

5425175

Mfg#:

G2XB48DOFHL2KT

$1733.99 USD

Add to Cart

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on orders $49 and up

Partial Replacement

Replace leaking or worn coolant flange with this Genuine BMW part affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For B48TU Gen 2 applications (B46D/B48D)

Brand:

ES#:

4732047

Mfg#:

11515A74E79

4% off MSRP

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

$133.99

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

$128.99 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

Connects the cylinder head to the water pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Pre-LCI models with the earlier B46D engine

Brand:

ES#:

4179820

Mfg#:

11538650984

2% off MSRP

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

$138.99

This product was last offered at the strikethrough price on
03-04-2026

$135.99 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

Measurements: 20x3 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:

ES#:

3674114

Mfg#:

C32348

$3.99

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

$2.99 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without Energy Recovery System (S1CEA)
For Pre-LCI models with the B48 Gen2 (B48D) engine only - Not compatible with later Gen3 engines

Brand:

ES#:

5425168

Mfg#:

G2XB48DOFHL1KT

$1093.99 USD

Add to Cart

Free Shipping

on orders $49 and up

Partial Replacement

Our most comprehensive kit yet, including the majority of components that should be replaced when repalcing your oil filter housing and thermostat module - featuring an Aluminum Oil Filter Housing, Coolant Thermostat Module, and coolant pump assembly! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without Energy Recovery System (S1CEA)
For Pre-LCI models with a production date from 07/2021+ with Control DSC (S8WEA)

Brand:

ES#:

5425190

Mfg#:

G2XB48DOFHL3AKT

$2359.99 USD

Add to Cart

Partial Replacement

Our most comprehensive kit yet, including the majority of components that should be replaced when repalcing your oil filter housing and thermostat module - featuring an Aluminum Oil Filter Housing, Coolant Thermostat Module, and coolant pump assembly! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without Energy Recovery System (S1CEA)
For Pre-LCI models with a production date up to 07/2021 or a production date from 07/2021+ without Crontrol DSC (S8WEA)

Brand:

ES#:

5425185

Mfg#:

G2XB48DOFHL3KT

$2359.99 USD

Add to Cart

Partial Replacement