Roll Bar Fire Extinguisher Mount
This page is for a project to build your own Roll Bar mount
fire extinguisher mount. Simple parts, low cost, and all that
stuff. The photo of the right is the first version I made
mounted in the Sunbeam Tiger on the roll bar. I need to
move it down a few inches to make sure it never gets in the
way of the seat.
Top view, no extinguisher
Side view of mounted extinguisher
Bottom view
Vibration Mount Pipe Clamp
This is a simple project for something that is a minimal fire safety for track days. I will eventually add a Safecraft installed Halon
fire supression system. The bracket design was from something that I saw on the web for Porsche cars from Brey-Krause
Performance. Looked like it was really simple to make and it was. Loads cheeper, with some parts from McMaster-Carr. Also
can be made for any sized roll bar. Again nothing magical, and no need to spend $$$$ on it. The fire extinguisher is a Halotron
and purchased from McMaster-Carr as well. This is a bit larger then the small ones that are often used. You will need to order 2
of the brackets to make a double strap bracket. The included bracket is not usable, and the bracket on the head of the
extinguisher must be removed. If you go with the dry chemical version of the extinguisher you will only need one bracket as the
one that comes with it is the same as the spare. Part numbers for McMaster-Carr parts are below.
Top View, note you have to pull a strap off another bracket and
pop-rivet it on. Add some foam tape to cover it up.

Bottom view of the bracket and the pipe clamps. Bracket is about
3.5" wide by about 10.5" long by  3/16" (0.1875") Thick 6061-T6
aluminum, which was cut out of a 4" wide strip with my Miller
Plasma Cutter. If you can use a pencil you can use a plasma
cutter! Clean up with belt sander.
Note the bracket could be a bit
shorter if needed. User your extinguisher bracket as a guide. Or if
using the Brey-Krause Quick release Extinguisher bracket very
short.
End View of the bracket. Note you can get it for most any sized pipe
depending on your roll bar. I have an Autopower Roll Bar that is
1-3/4" diameter pipe. They also come with zinc plated plate that is
not shown. It can be used to replace the bottom plate (Has built in
threads) which is made of black oxide steel. In any case you will
likely need longer bolts. I'm going to use the Zinc plate
non-threaded plate with lock nuts. The size of the bolts for that will
be 3-1/4"
McMaster-Carr Part Numbers

P/N 3015T31
Description : Std Duty Single Line Damping Vibration Clamp Weld-Mount, Zinc-Plated Steel, for 1-3/4" Tube OD
About $4.50 Each, 2 required

P/N
6487T9
Vehicle Mount Bracket for 3-11/32" Dia Cylinder Class ABC Dry Chemical Fire Extinguisher
About $5 Each (2 Required for Halotron, 1 for ABC Dry Chemical)

You can use either the Halotron or Dry Chemical ABC types. These are 2.5lb units and a tick larger then most. The
Halotron is a bit shorter then the Dry Chemical version, but more money.

P/N 37015T31
Class Bc Halotron Extinguisher 2-B:C UL Rating, 2-1/2 lb Capacity, Wall Bracket (Buckyeye)
About $85 Each

P/N
6487T72
Class ABC Dry Chemical Fire Extinguisher 1-A:10-B:C UL Rating, 2-1/2 lb Cap, Vehicle Bracket (Buckeye)
In stock at $27.10 Each

Misc. Stuff
And a piece of metal about 8" to 10.5"L x 3.5"W x 0.1875" Thick. I used 6061-T6  From Online Metals (see links). Nuts,
Bolts and washers as mentioned. I used stainless button heads for red mount to the top plate with Nylok's on most
everything.
Halotron - Left
Dry Chem - Right
Some added shots of a second mount. This one was for the Mustang (The Ripper). I made it a couple of inches
shorter after taking my own advice. Show below is the Dry Chemical extinguisher mounted. But I have a Halotron that
will replace it. One thing that I forgot to mention is check the center bolts that mount the extinguisher bracket (Red
one) to the top plate. These can hit the roll bar if not trimmed.
The last bit of work is for the Halotron extinguisher has a hook type of mount that must be removed to be able to use
the standard bracket. This is not hard, clamp it into a vice and twist it off. It mars up the nice anodized head a bit, but
not much you can do.
Click the Link to Online Metals if you need
metal, plastic or other materials in small
quantity and cuts. They are very easy to get
what you need for your projects. Most of the
projects above use metal from them. And
Prices are pretty good.