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
Ships in 1-2 days
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 10-24-2026
Includes an OE replacement expansion tank
10X Entries Into Our F80 M3 Sweepstakes Includes durable brass coolant bleeder screw - no more stripped or broken bleeder screws!
Brand:
ES#:
2593211
Mfg#:
17111741167KT6
Ships in 1 Business Day
ON SALE!
SAVE 14%
$109.99
This product was last offered at the strikethrough price on 05-02-2026
Connects the expansion tank to the radiator
2X Entries Into Our F80 M3 Sweepstakes We Price Match - Give Us A Call or Chat! For vehicles with production date up to 09/1998
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
