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Rullo Custom Cycles

Stealth Pop Up Gas Cap 2 Inch Aluminum Bung

Stealth Pop Up Gas Cap 2 Inch Aluminum Bung

Regular price $99.95 USD
Regular price Sale price $99.95 USD
Sale Sold out
Shipping calculated at checkout.
  • Machine finish aluminum gas cap
  • Aluminum gas cap male threaded base
  • Stainless steel hardware and components
  • Cold rolled steel or 6061 T6 aluminum threaded bung insert depending on model
  • Made in the USA

We have spent many hours perfecting the design of the Stealth Pop Up Gas Cap with the user in mind. The Stealth Pop Up Gas Cap is a perfect solution for anyone looking to make your gas cap "disappear" on your chopper, bobber, hot rod, or any other application. The machine-finished aluminum is an excellent paintable surface for you to match paint for an even more stealth appearance. A slight push down and a quarter turn allows the Stealth Gas Cap to pop up under light spring pressure from its base giving you a knurled surface to remove the cap as you would any other threaded cap. Reinstall the cap, then push down and give it a quarter turn and it remains flush with the top of the threaded bung insert. The Stealth Gas Cap and its base are CNC machined from aircraft quality 6061-T6 billet aluminum. We have used only the best components including anti-corrosive stainless steel cap screws, spring, and roll pin to connect the cap to its base assembly. We have seen other caps on the market with inferior hardware and plastic cap bases, but you will not find that with our design. The threaded bung that you will weld into your gas tank, hot rod body, or other location is CNC machined from solid 1018 cold rolled steel or 6061-T6 aluminum (depending on model) for easy welding. The shape is designed with welders/installers in mind. The top of the bung is a larger diameter than the rest of the base to allow for easy installation into a drilled hole, along with a chamfer for excellent weld penetration. The welding surface is relatively far from the threaded area of the bung to counteract any heat distortion when installing. The threads are standard 1 1/4"-12 which can easily be chased with a tap if ever necessary.

STPGC3 model: 2" Gas Cap: 2.0" diameter Aluminum Bung: 2.4" diameter at weld lip, 2.14 at body, 1.64 at base section (designed as clamp surface 1 5/8" ID hose if desired), 1.3" overall length

Part Number:



  • Aluminum cap
  • Aluminum bung

Shipping & Returns

Item typically ships within 1 -2 business days

Packaged Dimensions

Length = 3 in

Width =3 in

Depth = 2 in

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Chopper parts

Quality parts made in-house for the professional or garage builder alike.

  • Free Shipping

    Your order will ship for free in the contiguous 48 states. Read a little more regarding shipping here:

    Shipping Policy 
  • Hassle-Free Returns

    We accept returns for a 30 day period for any reason that you decide not to keep your purchase. Read about return details here:

    Returns & Refunds Policy