Upgrade the visual appeal of your engine bay with Vargas Turbo Technologies' Billet Caps!
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
Upgrade the visual appeal of your engine bay with Vargas Turbo Technologies' Billet Caps!
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
Replacement expansion tank cap for your BMW
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#:
4732065
Mfg#:
17135A1BD89
In Stock
6% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$34.99
This product was last offered at the strikethrough price on 10-26-2026
Includes connector housing with terminals and seals. Commonly used for the coolant level sensor.
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#:
4772597
Mfg#:
61132359999
In Stock
ON SALE!
SAVE 25%
$10.99
This product was last offered at the strikethrough price on 06-13-2026
Seals the high temp circuit expansion tank, preventing coolant and pressure loss
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#:
4181514
Mfg#:
17138665638
In Stock
6% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$34.99
This product was last offered at the strikethrough price on 10-26-2026
Replacement plastic coolant reservoir for the high temp circuit that cools your engine block and cylinder head - includes an 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
Brand:
ES#:
4181509
Mfg#:
17138610652
Ships in 1 day
6% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$198.99
This product was last offered at the strikethrough price on 10-26-2026
Upgrade the visual appeal of your engine bay with Vargas Turbo Technologies' Billet Caps!
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 This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap
Connects the cylinder head to 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 For Pre-LCI models with the earlier B46D engine
Brand:
ES#:
4181361
Mfg#:
17128654824
Ships in 1 day
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$57.99
This product was last offered at the strikethrough price on 10-26-2026
Upgrade the visual appeal of your engine bay with Vargas Turbo Technologies' Billet Caps!
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
Dress up your engine bay with new coolant expansion tank caps
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 model years up to 2023
Replacement plastic coolant reservoir for the low temp circuit that cools your intercooler
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 Pre-LCI models only
Brand:
ES#:
4181510
Mfg#:
17138610653
Ships in 1 day
6% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$170.99
This product was last offered at the strikethrough price on 10-26-2026
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#:
4861045
Mfg#:
17135A1BD89
Ships in 1 Business Day
$24.99
This product was last offered at the strikethrough price on 05-07-2026
Dress up your engine bay with new coolant expansion tank caps
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 model years up to 2023
Connects the cylinder head to the 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 For Pre-LCI models with the earlier B46D engine
Seals the high temp circuit expansion tank, preventing coolant and pressure loss
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
Replacement plastic coolant reservoir for the low temp circuit that cools your intercooler
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 LCI models only
Brand:
ES#:
4757672
Mfg#:
17135A270D3
Ships in 3 Business Days
6% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$170.99
This product was last offered at the strikethrough price on 10-26-2026
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
