Replace your cracked or dried out components - Used in the lower portion of the 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
Plastic reservoir for the coolant system
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#:
3658436
Mfg#:
8K0121403AC
Ships in 1 Business Day
$130.00
This product was last offered at the strikethrough price on 07-23-2026
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 We Price Match - Give Us A Call or Chat!
Everything you need to replace your faded, cracked, or leaky 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
Brand:
ES#:
2649683
Mfg#:
8E0121403AKT2
Ships in 1 day
ON SALE!
$65.99
This product was last offered at the strikethrough price on 05-02-2026
Install new hardware with your new parts. 4.8x19
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 in the engine bay up to VIN 8D-W-00779, split is in the 1998 model year
Brand:
ES#:
467231
Mfg#:
N10003203
In Stock
25% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$2.78
This product was last offered at the strikethrough price on 10-15-2026
Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank
5X 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! For Vehicles with CYMC Engine Code Only
Plastic reservoir for cooling system
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
Plastic reservoir for cooling system
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
Located between the coolant expansion tank and the cylinder head coolant flange
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
Plastic pressure cap for 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
Brand:
ES#:
2091199
Mfg#:
8E0121321
Ships in 1-2 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.
$55.99
This product was last offered at the strikethrough price on 10-26-2026
Install a brand new expansion tank with a new cap and hardware
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
Brand:
ES#:
2966327
Mfg#:
8D0121403LXKT1
Ships in 1-2 days
ON SALE!
$49.99
This product was last offered at the strikethrough price on 05-02-2026
Coolant reservoir to cure hairline cracks, resolve false low-coolant warnings, and restore the structural integrity of your pressurized cooling system.
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
Expansion tank bracket that bolts up to the vehicle frame
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#:
3250330
Mfg#:
8W0121232L
Ships in 4 Business Days
12% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$48.99
This product was last offered at the strikethrough price on 10-26-2026
Adjustable clamp used on various hoses in the engine bay. 16-28x9
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 lower radiator hose to the expansion tank
Brand:
ES#:
6015
Mfg#:
N90561801
In Stock
3% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$5.91
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
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#:
2862682
Mfg#:
376737131
In Stock at Vendor
$47.17
This product was last offered at the strikethrough price on 08-14-2026
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
