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BMW G05 X5 xDrive45e B58 3.0L

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BMW G05 X5 xDrive45e B58 3.0L Engine Thermostat Parts

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Junction Heat Hose

ES#3441785 - 11538606278 - Junction Heat Hose - Hose coming off the small fitting on the thermostat - Genuine BMW - BMW

Hose coming off the small fitting on the thermostat affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
3441785
Mfg#:
11538606278
Ships in 3 Business Days
6% off MSRP

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

$84.99

This product was last offered at the strikethrough price on
06-07-2026

$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Junction Heat Hose

ES#4871933 - 11538606278 - Junction Heat Hose - Hose coming off the small fitting on the thermostat - Bremmen Parts - BMW

Hose coming off the small fitting on the thermostat affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4871933
Mfg#:
11538606278
In Stock
ON SALE! SAVE 21%
$54.99

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

$43.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Electronic Thermostat And Coolant Distribution Module

ES#4179814 - 11538642559 - Electronic Thermostat And Coolant Distribution Module - Thermostat controlled by the ECU for precise temperature control. - Genuine BMW - BMW

Thermostat controlled by the ECU for precise temperature control. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
4179814
Mfg#:
11538642559
In Stock
10% off MSRP

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

$491.99

This product was last offered at the strikethrough price on
06-07-2026

$443.99 USD
Free Shipping
on orders $49 and up

Water Pump & Thermostat Kit

ES#4810742 - 11518482251KT - Water Pump & Thermostat Kit - Includes a new water pump, heat management module, coolant outlet pipe, and all new o-ring seals - Genuine BMW - BMW

Includes a new water pump, heat management module, coolant outlet pipe, and all new o-ring seals affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models without the 48V Mild Hybrid package
For vehicles with the B58D (Gen2) engine only - Will not fit the earlier B58A (Gen1) engine

Brand:
Genuine BMW - Corporate Logo
ES#:
4810742
Mfg#:
11518482251KT
Ships in 3 Business Days
$715.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Radiator Return Pipe

ES#3421131 - 11538630023 - Radiator Return Pipe - Coolant pipe that runs from the thermostat next to the engine block - Genuine BMW - BMW

Coolant pipe that runs from the thermostat next to the engine block affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
3421131
Mfg#:
11538630023
Ships in 3 Business Days
7% off MSRP

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

$329.99

This product was last offered at the strikethrough price on
06-07-2026

$306.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PROFILE-GASKET

ES#2993815 - 11538658571 - PROFILE-GASKET - Gasket that goes between the thermostat and radiator return pipe - Genuine BMW - BMW

Gasket that goes between the thermostat and radiator return pipe affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2993815
Mfg#:
11538658571
In Stock
7% off MSRP

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

$14.99

This product was last offered at the strikethrough price on
06-07-2026

$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Electronic Thermostat And Coolant Distribution Module

ES#5433735 - 11538843406 - Electronic Thermostat And Coolant Distribution Module - Thermostat controlled by the ECU for precise temperature control. - Bremmen Parts - BMW

Thermostat controlled by the ECU for precise temperature control. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5433735
Mfg#:
11538843406
In Stock
ON SALE! SAVE 10%
$397.99

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

$358.01 USD
Free Shipping
on orders $49 and up

Electronic Thermostat And Coolant Distribution Module

ES#4872107 - 11538642559 - Electronic Thermostat And Coolant Distribution Module - Thermostat controlled by the engine computer for precise temperature control. - Ina - BMW

Thermostat controlled by the engine computer for precise temperature control. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
4872107
Mfg#:
11538642559
In Stock at Vendor
$349.98 USD
Free Shipping
on orders $49 and up

Thermostat O-ring

ES#2997891 - 11538658572 - Thermostat O-ring - O ring that seals the thermostat to the coolant pump - Genuine BMW - BMW

O ring that seals the thermostat to the coolant pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2997891
Mfg#:
11538658572
Ships in 3 Business Days
$9.99

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

$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Module Preformed Seal - Small

ES#4179841 - 11539494424 - Thermostat Module Preformed Seal - Small - Seals the connection between the heat management module and the engine block - Genuine BMW - BMW

Seals the connection between the heat management module and the engine block affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
4179841
Mfg#:
11539494424
Ships in 3 Business Days
13% off MSRP

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

$14.99

This product was last offered at the strikethrough price on
06-07-2026

$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Module Preformed Seal - Large

ES#4179842 - 11539494425 - Thermostat Module Preformed Seal - Large - Seals the connection between the heat management module and the engine block - Genuine BMW - BMW

Seals the connection between the heat management module and the engine block affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
4179842
Mfg#:
11539494425
Ships in 3 Business Days
13% off MSRP

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

$14.99

This product was last offered at the strikethrough price on
06-07-2026

$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring - Priced Each

ES#4179838 - 11539425963 - O-Ring - Priced Each - Seals the connection between the Heat Management Module and the water pump housing - Genuine BMW - BMW

Seals the connection between the Heat Management Module and the water pump housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
4179838
Mfg#:
11539425963
Ships in 3 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Electronic Thermostat And Coolant Distribution Module

ES#5456911 - V20-99-0005 - Electronic Thermostat And Coolant Distribution Module - Thermostat controlled by the ECU for precise temperature control. - Vemo - BMW

Thermostat controlled by the ECU for precise temperature control. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with the early B58C or B58D TU engine - Will not fit the B58N TU2 engine

Brand:
Vemo - Corporate Logo
ES#:
5456911
Mfg#:
V20-99-0005
Ships on Jul 16, 2026
Auto Notify
$336.99 USD

More About Engine Thermostat Parts

Your thermostat helps regulate engine temperatures by allowing the coolant to circulate through the radiator once it opens. If it fails, this might mean it never closes, but worst case, it could mean your coolant doesn't get to the radiator. Stay ahead of cooling issues by replacing your thermostat regularly with an OEM thermostat or quality aftermarket thermostat from our selection.

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