Push Fuel Cap and Adapter
Billet aluminum. Two inches of thread. One honest fill. A Boyd tank gives you a 2 inch NPSM neck and a threaded cap; and the first time you stop for fuel with a passenger waiting you remember that a threaded cap needs two hands and somewhere to put it down. This adapter threads onto that neck and turns it into an OEM style push cap. Click and fill; click and go. It works with Hagan; Tanks INC; Permacap and the other long course thread caps; and the cap comes with it. It is CNC machined aluminum; not a cast part with a machined face. It raises the neck 5/8 inch plus whatever your cap adds; which is worth measuring against a bed floor or a filler door before you order. Small part. It is the one you touch every single time you drive the truck.
Install Level: Beginner - threads onto the existing filler neck
Threads onto any Boyd 2 inch NPSM filler neck.
Adds 5/8 inch of neck height plus the height of the cap.
Works with Hagan; Tanks INC; Permacap and other OEM style long course thread caps.
FFG Push Fuel Cap and Adapter | Precision CNC Machined Aluminum | Convert Any Boyd 2" NPSM
Transform your fuel system from basic to brilliant with Fat Fender Garage's Push Fuel Cap and Adapter – precision CNC-machined aluminum engineering that converts any Boyd 2" NPSM neck to modern OEM-style convenience.
This isn't just an adapter – it's the bridge between vintage style and modern function. Thread it effortlessly onto your Boyd neck and instantly unlock compatibility with today's popular click-and-fill caps. No more wrestling with awkward fills or compromising your build's clean lines. Works With Hagan, Tanks INC, Permacap, and many other OEM-style caps
Built for builders who demand both authenticity and convenience, this adapter proves you don't have to choose between classic character and modern fuel system performance.
What's Included
- Every complete adapter brings you:
- All hardware included for straightforward installation
- Effortless threading onto any Boyd 2" NPSM neck
- Instant conversion to OEM-style click-and-fill compatibility
- Precision CNC-machined aluminum construction
- 5/8" neck height increase plus your cap's height
- Universal compatibility with long course thread caps
Vendor: Fat Fender Garage
Material: precision CNC machined aluminum
Thread: fits Boyd 2 inch NPSM filler neck
Output: OEM style long course thread; accepts push and click-and-fill caps
Neck height increase: 5/8 inch plus the height of your cap
Contents: push fuel cap; adapter; all mounting hardware
Published compatible cap brands: Hagan; Tanks INC; Permacap
Listed price 81.99 USD
Variant count: 3
No weight; outside diameter or finish specification is published on this listing
Tagged across the full classic Ford; Bronco and Chevy truck range because fitment is defined by the neck and not by the vehicle.
Accepts OEM style long course thread caps including Hagan; Tanks INC and Permacap.
Adds 5/8 inch of neck height plus the height of the cap; check clearance under a bed floor or filler door before ordering.
