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Volkswagen MK6 Coolant Level Sensors

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Coolant Expansion Tank

ES#3991834 - 1K0121407F - Coolant Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - Genuine Volkswagen Audi - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3991834
Mfg#:
1K0121407F
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.

$81.16

This product was last offered at the strikethrough price on
08-17-2026

$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#4766175 - 1K0121407A - Coolant Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - Bremmen Parts - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766175
Mfg#:
1K0121407A
In Stock
ON SALE! SAVE 11%
$18.99

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

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank - With Cap

ES#4883474 - 1K0121407A - Coolant Expansion Tank - With Cap - See your coolant levels clearly again, comes with coolant level sensor - Rein - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4883474
Mfg#:
1K0121407A
In Stock
$24.49 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank - With Cap

ES#3189265 - 603-253 - Coolant Expansion Tank - With Cap - See your coolant levels clearly again, comes with coolant level sensor - Dorman - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor

Brand:
Dorman - Corporate Logo
ES#:
3189265
Mfg#:
603-253
Ships in 1 Business Day
$44.93

This product was last offered at the strikethrough price on
08-07-2026

$42.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3626009 - 1K0121407A - Coolant Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - URO - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3626009
Mfg#:
1K0121407A
In Stock
$19.49

This product was last offered at the strikethrough price on
08-04-2026

$19.47 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor Connector

ES#311321 - 1J0973202 - Coolant Level Sensor Connector - Connects to the coolant level sensor built into the expansion tank - Genuine Volkswagen Audi - Audi Volkswagen

Connects to the coolant level sensor built into the expansion tank

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
311321
Mfg#:
1J0973202
Ships in 1-2 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.

$42.99

This product was last offered at the strikethrough price on
08-17-2026

$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2499502 - 1K0121407A - Coolant Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - Vaico - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2499502
Mfg#:
1K0121407A
In Stock at Vendor
$48.99

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

$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#5346938 - EPT0030 - Coolant Expansion Tank - Does not include cap - Rein - Audi Volkswagen

Does not include cap 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5346938
Mfg#:
EPT0030
In Stock
$20.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank

ES#3139113 - 1K0121407A - Coolant Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - Hudson - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor

Brand:
Hudson - Corporate Logo
ES#:
3139113
Mfg#:
1K0121407A
Ships in 1 day
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
This product has been superseded to ES#4766175

Coolant Expansion Tank

ES#4876891 - 1K0121407F - Coolant Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor. - Bremmen Parts - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4876891
Mfg#:
1K0121407F
No longer available

Coolant Expansion Tank

See your coolant levels clearly again, comes with coolant level sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4343694
Mfg#:
1K0121407
Special Order: No Guaranteed ETA
$24.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#4900411 - 1K0121407F - Coolant Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - Meyle - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4900411
Mfg#:
1K0121407F
Special Order: No Guaranteed ETA
$30.99 USD
Free Shipping
on orders $49 and up

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