Auxiliary M998 Gas tank

[Rich7312]

What's the best way to install a 2nd gas tank on a 1990 M998? One gas tank doesn't have a lot of range.

 

[Dock Rocker]

What's the best way to install a 2nd gas tank on a 1990 M998? One gas tank doesn't have a lot of range.

You can certainly toss a gravity feed tank in the back. Not very tacti-cool but it would work.


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[juanprado]

Some later armored heavy models had a 2nd rear fuel tank. Some of the more hmmwv knowledgeable folks can expand.

http://www.hmmwvinscale.com/hmmwvauxfueltank.htm

 

[DatGuyC]

The Hummer H1's had auxiliary tanks. You have to get a rear bumper and later style trailer hitch for the tank to mount to, plus all the specific things like brackets and skid plate.

 

[Retiredwarhorses]

I had an H1 many moons ago with dual under fender fuel tanks....

 

[NormB]

MILSPEC is good too, brackets are available from many sources to mount in/outside truck or on bumper.



You DID specify “best way” which is debatable. Having a detachable, portable “tank” if you run out of fuel is a plus in my mind.

YMMV (see what I did there?).

 

[Action]

What's the best way to install a 2nd gas tank on a 1990 M998? One gas tank doesn't have a lot of range.

Hmmwv dont have gas tanks....

 

[911joeblow]

There are also several 'universal' tanks that will work too. You can just pump them into the main tank.

 

[Action]

Nobody wanted these when I had them for sale. They had a hole cut in fender top for fill and used a valve to gravity feed the main tank. I think they went in a dumpster or recycled.

 

[JoeJrTheBarber]

Get creative !
The racecar / off road community loves their build to fit aluminum fuel cells.
I am sure you can either retro fit / have one made for your specific needs..