Replacement plastic coolant reservoir for the high temp circuit that cools your engine block and cylinder head - includes an integrated coolant level sensor
Brand:
ES#:
4181509
Mfg#:
17138610652
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.
$198.99
This product was last offered at the strikethrough price on 08-27-2026
Upgrade the visual appeal of your engine bay with Vargas Turbo Technologies' Billet Caps!
2X Entries Into Our F80 M3 Sweepstakes 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
For models with the earlier B48D, B46D, or B46X engines - Not compatible with the later models that feature the B48N/B48P engine
Brand:
ES#:
4181361
Mfg#:
17128654824
In Stock
ON SALE!
$54.99
This product was last offered at the strikethrough price on 08-26-2026
Whether you’re under the hood for a weekend project or keeping a high-performance engine in peak shape, the last thing you want to worry about is a brittle cooling system. That’s where the Rein Automotive Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
5470478
Mfg#:
17138610652
Back Ordered
$119.99 USD
Lifetime Replacement
More About Cooling Expansion Tank Parts
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
