Dorman 904-066 DEF filler neck for the 2017-2019 Ford F-250 Super Duty V8 6.7L and other vehicles carries diesel exhaust fluid from the fill point to the DEF tank. It is a direct replacement for an original filler neck that is leaking or has failed.
- Part of the Dorman OE Solutions line
- Designed to help ensure reliable, secure transfer of DEF from the fill point to the DEF tank
- Designed, manufactured and tested to strict specifications for reliable service
- Plastic, rubber and steel construction
- Bolt-on attachment method
Quick facts
- Part: Dorman 904-066 DEF filler neck
- Fits: 2017-2019 Ford F-250 Super Duty V8 6.7L and other vehicles
- Material: Plastic, rubber, steel
- Condition: New
A leaking or failed neck can show up as DEF dripping or pooling near the fill point, a cracked or damaged neck, or fluid escaping as you fill. Before replacing it, look the neck over with the engine off for cracks, wet spots or residue, because a leak elsewhere in the DEF line can look similar. One neck goes on each truck.
Fits
This DEF filler neck also fits the 2017-2019 Ford F-350 Super Duty V8 6.7L and the 2017-2019 Ford F-450 Super Duty V8 6.7L.
Specifications
Fit and size
- Quantity per vehicle: 1
- Attachment method: bolt on
- Length: 29 in
- Height: 6 in
- Width: 12 in
Build and materials
- Material: plastic, rubber, steel
- Condition: new
- Country of origin: United States
In the box
One DEF filler neck. Mounting hardware and a cap are not included, so plan on new bolts, since the old ones may not be reusable.
Interchange: HC3Z5J232D · HC3Z5J232H
Frequently Asked Questions
Does the Dorman 904-066 DEF filler neck fit a 2017-2019 Ford F-350 Super Duty V8 6.7L?
Yes, Dorman 904-066 fits the 2017-2019 Ford F-350 Super Duty V8 6.7L; if your truck is not named here, find it in the "Vehicles it fits" section on this page.
Does this DEF filler neck come with a cap or mounting bolts?
No, the package holds one DEF filler neck, and a cap and mounting hardware are not included.
What is the Dorman 904-066 DEF filler neck made of?
Dorman 904-066 is made of plastic, rubber and steel. It attaches with a bolt-on method.
Where is this DEF filler neck made?
The country of origin for this DEF filler neck is the United States.
Does Dorman 904-066 replace number HC3Z5J232D?
Yes. HC3Z5J232D is one of the numbers Dorman 904-066 replaces, along with HC3Z5J232H.
