2017-2019 KTM 500 EXC-F IMS 4.25 Gallon Fuel Tank Installation

Feb 27, 2020 | Motorcycle Builds, Motorcycle Gear Reviews, Videos

IMS 4.25 Gallon Oversized Tank Install

Cost: ~$420
Difficulty: 3/5
Tools Needed:
  • 8MM Socket with extension
  • Flathead screwdriver
  • 15MM, 17MM, & 19MM socket/wrenches
  • Razor to cut fuel line
  • Vise grips and snips to get old clamps off

IMS oversized fuel tank installs for MX/Dirt bikes are fairly straightforward IF you have the right parts on hand… We started this project assuming the stock fuel pump hardware (retaining nut and petcock/connector) would work with the new tank. Well, the IMS tank is roughly 2-3MM thinner than the factory tank so the hardware does not work.

So that can be a bummer, but otherwise this tank is awesome! You barely notice any difference on your knees and if you only put 2.5 gallons in it, the fuel is actually held lower so the center center of gravity is actually better. Great product, I just wish RockyMountain ATV/MC would state the the tank needs extra hardware to install that is not included.

If you are looking to do this install, definitely do yourself a favor and just buy the parts first, you can return them if you don’t use them.

New Hardware Part Numbers Needed From AOMC.mx (for 2017 KTM 500EXC, may be different for your bike, but probably best to have it on hand):
77707988017 KTM Factory Fuel Pump Connector
78107088014 NUT F. FUEL PUMP M12


Heat Shield – Design Engineering 010392 Reflect-A-GOLD High-Temperature Heat Reflective Adhesive Backed Sheet, 12″ x 24″ Sheet

IMS 4.25 Gallon Tank


To subscribe and follow the build and other adventure/enduro/truck videos, click here. 

Recent Bike Build Posts/Videos

Our Newsletter