Composed of genuine Audi parts to fix your leaking coolant expansion tank.
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Brand:
ES#:
2649681
Mfg#:
8E0121403AKT1
Ships in 3 Business Days
$139.99
This product was last offered at the strikethrough price on 08-31-2026
Connects the expansion tank to the radiator
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Brand:
ES#:
450277
Mfg#:
8K0121109AA
Ships in 9 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.
$154.99
This product was last offered at the strikethrough price on 08-31-2026
Install new hardware with your new parts.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat! Used in securing the coolant expansion tank
Ensure a proper seal on hose connections. 17x12
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Secures the expansion tank hose on both sides.
Keep proper pressure in your coolant system
2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat! From VIN 8D-W-007800, split is in the 1998 model year
Replace a broken connector to restore function
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For the expansion tank level sensor from VIN 8D-W-007800, split is in the 1998 model year
Brand:
ES#:
251883
Mfg#:
1J0973723
Ships in 1 day
10% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$19.99
This product was last offered at the strikethrough price on 10-26-2026
Plastic reservoir for the coolant system
2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Brand:
ES#:
3658435
Mfg#:
8K0121403AC
Ships in 3 Business Days
$58.99
This product was last offered at the strikethrough price on 05-07-2026
Piece that the rubber grommet sits into on the bracket
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Install new hardware with your new parts. M6
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Used in securing the coolant expansion tank
Brand:
ES#:
470213
Mfg#:
N90570802
In Stock
19% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$3.55
This product was last offered at the strikethrough price on 10-28-2026
Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply From VIN 8D-W-007800, split is in the 1998 model year
Brand:
ES#:
5388801
Mfg#:
8D0121403L
In Stock
ON SALE!
SAVE 15%
$23.99
This product was last offered at the strikethrough price on 09-16-2026
Replace your cracked or faded expansion tank.
2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Plastic pressure cap for expansion tank
2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Plastic reservoir for the coolant system, cap not included.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Replace your old coolant tank and stop those pesky leaks
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
436246
Mfg#:
8E0121403A
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.
$81.99
This product was last offered at the strikethrough price on 08-31-2026
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
