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BMW E63 645Ci N62 4.4L

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BMW E63 645Ci N62 4.4L Cooling Expansion Tank Parts

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CAP- EXPANSION TANK

ES#2801014 - 17117639021 - CAP- EXPANSION TANK - Cap for plastic expansion tank - Meistersatz - BMW

Cap for plastic expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Meistersatz - Corporate Logo
ES#:
2801014
Mfg#:
17117639021
Ships in 3 Business Days
$30.99

This product was last offered at the strikethrough price on
06-10-2026

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Vent Plug

ES#3410129 - 11531436850 - Expansion Tank Vent Plug - Plug that goes on top of expansion tank. Made in Germany. - Rein - BMW

Plug that goes on top of expansion tank. Made in Germany. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rein - Corporate Logo
ES#:
3410129
Mfg#:
11531436850
Back Ordered
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fluid Level Sensor

ES#4328150 - 17117546548 - Fluid Level Sensor - This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level - Meyle - BMW

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:
Meyle - Corporate Logo
ES#:
4328150
Mfg#:
17117546548
Special Order: No Guaranteed ETA
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank With Cap - E6x

ES#5374546 - EPK0128 - Expansion Tank With Cap - E6x - Includes fluid level sensor - Rein - BMW

Includes fluid level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rein - Corporate Logo
ES#:
5374546
Mfg#:
EPK0128
Back Ordered
$86.99

This product was last offered at the strikethrough price on
04-27-2026

$74.99 USD
Free Shipping
on orders $49 and up

More About Cooling Expansion Tank Parts

A common source of overheating problems is a broken or leaking coolant expansion tank. Replace it with an OEM coolant expansion tank or quality aftermarket expansion tank to prevent future woes.

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