Replace cracked or dried out components
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Used to secure the coolant expansion tank
Brand:
ES#:
450311
Mfg#:
8K0129669
In Stock
8% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$12.99
This product was last offered at the strikethrough price on 06-04-2026
Keep proper pressure in your coolant system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat!
Keep proper pressure in your coolant system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat!
Brand:
ES#:
3690266
Mfg#:
5Q0121321
Ships on Sep 29, 2026
$18.99
This product was last offered at the strikethrough price on 04-02-2026
Plastic reservoir for the coolant system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat!
Brand:
ES#:
3658435
Mfg#:
8K0121403AC
In Stock at Vendor
$58.99
This product was last offered at the strikethrough price on 05-07-2026
Connects the expansion tank to the cylinder head flange
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Up to production date 4/9/2012
Brand:
ES#:
1285726
Mfg#:
8R0121081
Ships in 1 day
9% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$103.99
This product was last offered at the strikethrough price on 02-26-2026
Connects to the lower radiator hose
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat! Connects lower radiator hose to the coolant expansion tank hose and water pump hose
Keep proper pressure in your coolant system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat!
Connects to the lower radiator hose
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Connects lower radiator hose to the coolant expansion tank hose and water pump hose
Brand:
ES#:
470540
Mfg#:
N90692901
Ships in 1 day
9% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$32.99
This product was last offered at the strikethrough price on 02-26-2026
Plastic reservoir for the coolant system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat!
Keep proper pressure in your coolant system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4818658
Mfg#:
5Q0121321
In Stock
ON SALE!
SAVE 24%
$15.99
This product was last offered at the strikethrough price on 05-02-2026
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.
Lifetime Replacement
