water filler neck
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Billet Water Filler Neck by Drag Race Solutions

Our Polished Billet Aluminum Water Filler Necks are machined with a -12AN female straight o-ring port in the front.  This allows for use of the size fitting of choice for your application.  Fittings are sold separately for this reason. -12, -10 and -08 fittings available.

The Polished finish has been tumble polished first and then professionally polished to a mirror finish.

Racers ourselves, We spent a tremendous amount of time making sure of the fit for the radiator cap, insuring the pressue seal and locking mechanism work as well as possible for extreme racing conditions.

Our Billet one-piece designed top expansion portion is unique to the industry and bolts to the base plate with an o-ring seal by 4 provided stainless steel cap screws.  1/4" push lock overflow fitting also provided.


  • Item #: 3300-001P

Billet Water Filler Necks - Polished Aluminum

Price: $219.99
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