Coolant Fill Necks

Shop coolant fill necks at XT Motorsports — where every build gets the XT treatment. As an authorized dealer for 450+ performance brands, XT Motorsports stocks coolant fill necks with live inventory and fast US shipping. Use the XT Garage vehicle selector to confirm fitment before you buy.

5 products
Vibrant Weld On Radiator Filler Neck - 32mm ID (1.25in) - 20980
Vibrant Weld On Radiator Filler Neck - 32mm ID (1.25in) - 20980
Vibrant
$40.99 $30.79 Sale
Koyo 13-16 Scion FR-S / Subaru BRZ Aluminum Filler Neck - FN2320
Koyo
$98.20
Mishimoto 42mm Aluminum CNC Fill Neck - MMFN-L
Mishimoto 42mm Aluminum CNC Fill Neck - MMFN-L
Mishimoto
$24.00 $21.95 Sale
Mishimoto 32mm Aluminum CNC Fill Neck - MMFN-S
Mishimoto 32mm Aluminum CNC Fill Neck - MMFN-S
Mishimoto
$24.00 $21.95 Sale
Vibrant Weld On Radiator Filler Neck - 42mm ID (1.65in) - 20982
Vibrant Weld On Radiator Filler Neck - 42mm ID (1.65in) - 20982
Vibrant
$44.99 $33.50 Sale