- "When the war droids breached the armory, the uprising became a catastrophe. They were juggernauts, and for them it was as easy as returning home."
- ―Conflagration: An Eyewitness Report of the Great Droid Uprising
The juggernaut operated in a bipedal configuration, and had two alternate methods of propulsion. It could use twin outrigger jets to propel itself into the air for bursts up to one minute, or the jets could convert into intake propellers for underwater use. Unfortunately, the droids propellers would often jam, sinking the droid. The juggernaut was armed with a wide beam sonic stunner and a high powered shatter beam, but its primary weapon was the pulse-wave rifle.
They were first commissioned in 4800 BBY by Supreme Chancellor Vocatara, and they quickly saw service in the Gank Massacres. During the Great Sith War, Juggernaut war droids provided soldiers of Galactic Republic with much-needed supplies, since thanks to the versatility of their jet packs they were able to reach Republic personnel well behind enemy lines. During the Great Droid Revolution, however, they were used by HK-01, shredding the Republic rocket-jumpers in an air battle over Monument Plaza. Most of the droids were quickly decommissioned after HK-01 was deactivated.
- "Battle for Mandalore"—Challenge 58 (First mentioned)
- The Emperor's Pawns"—Star Wars Gamer 5 "
- The New Essential Guide to Droids
- Knights of the Old Republic Campaign Guide
- Jedi Academy Training Manual
- The Essential Guide to Warfare