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
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
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
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 Business Day
ON SALE!
$49.99
This product was last offered at the strikethrough price on 05-02-2026
Connects the expansion tank to the left side water tube
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#:
6051
Mfg#:
8D0121109G
Back Ordered
2% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$48.00
This product was last offered at the strikethrough price on 10-28-2026
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
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 Up to VIN 8D-W-007799, split is in the 1998 model year
Brand:
ES#:
2586883
Mfg#:
8D0121403DUROKT
Back Ordered
ON SALE!
$34.99
This product was last offered at the strikethrough price on 05-02-2026
Connects the expansion tank to the hard water pipe
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#:
429389
Mfg#:
8D0121107C
Ships in 2 Business Days
16% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$37.99
This product was last offered at the strikethrough price on 08-31-2026
Runs from the bottom of the expansion tank to the water pipe
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
Includes integrated coolant level sensor
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! Up to VIN 8D-W-007799, split is in the 1998 model year
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!
Includes integrated coolant level sensor
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 Up to VIN 8D-W-007799, split is in the 1998 model year
Includes integrated coolant level sensor, does not include cap
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! From VIN 8D-W-007800, split is in the 1998 model year
Keep proper pressure in your coolant system
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!
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
