Proflow water outlet O-ring gaskets will fit your Proflow billet aluminium water necks. They are made of high-strength rubber to keep your intake manifold and cooling system leak-free.

More From This Category

Proflow Water Neck O-Ring, Rubber, Water Outlet, fits Billet Water neck TH809

Proflow Water Neck O-Ring, Rubber, Water Outlet, fits Billet Water neck TH809

$12.66

Proflow Aluminium Water Neck & Thermostat kit LS Chev For Holden 45 degree Swivel Chrome

Proflow Aluminium Water Neck & Thermostat kit LS Chev For Holden 45 degree Swivel Chrome

$76.63

Proflow Aluminium Water Neck, For Ford 289-302, 351W O'Ring Style Black, Each

Proflow Aluminium Water Neck, For Ford 289-302, 351W O'Ring Style Black, Each

$37.66