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Bolt-On Aluminum Filler Cap Bung

SKU C73-746
Select By Fill Cap Size
Regular price $42.99

Spend $175 to get free shipping
Crafted-in-USA Stiletto Replacement Boot and Wire Kit 2-1 4 Inch OD x 1-1 2 Inch ID: 9 Peaks: Dwarf Mod-lite Rack N Pinions

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Easy Turn Filler Cap with O-Ring

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1-5/8 Inch Aluminum Bolt-On Bung
1-1/4-12 Straight Thread
4 on 2 in. Bolt Circle
9/16 in. Bung Height
(Replacement base O-Ring is C73-748)

2 Inch Aluminum Bolt-On Bung
1-1/2-12 Straight Thread
4 on 2.25 in. Bolt Circle
9/16 in. Bung Height
(Replacement base O-Ring is C73-768)

2-3/4 Inch Aluminum Bolt-On Bung
2-1/4-10 Straight Thread
5 on 3.125 in. Bolt Circle
11/16 in. Bung Height
(Replacement base O-Ring is C73-789)

The base of the bung is machined to accept an O-ring for a leak proof installation.

Bolt-On Bung


Pro-werks Fill Cap Bungs are available separately without the cap. These bolt-on style aluminum bungs come in several types and sizes, and do not require welding. Select anodized colors are available and include mounting hardware - so you won't need to run all over town looking for it!

Properly sized  for the "radially squeezed" O-ring standard of the signature Pro-werks Easy Turn Fill Cap.

The selection of weld-able bungs is also available; including several different heights in your choice of Steel, Aluminum or Stainless steel materials.

Note: Welding should always be performed by a qualified welder.


Great caps. Great colors.


These bungs utilize the popular non-vented Easy Turn Fill Caps that are available variety of Pro-Werks Brilliance anodized colors or beautifully Micro-polished aluminum finish - the finishes are impeccable.

The right size matters.
capsizes Easy Turn Fill Cap with O-Ring
Easy Turn Fill Caps come in many sizes and are packaged as complete assemblies with your choice of one of the many versatile mounting options, or each component is also available separately.
Be sure to check out the entire line up - Billet aluminum Easy Turn Fill Caps are a Pro-Werks specialty.  

Finish Your Tank

We also offer a full line of weld-in plumbing bungs to complete your tank project.

Click the images below to view all the options.

FemaleSteelFull NPT Female Weld In Bung

FAQ

Q: What should I use to lubricate the Buna O-ring?
A: Applied periodically, a light coating of Dielectric grease has proven to work well as an O-ring lubricant.

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