Engine Gattai EngineOh Height: 51.5 meters Length: 45.5 meters Width: 25 meters Weight: 2800 tons Speed: 730 km/hour Power Output: 1200 Speedor, Buson and BearV can unite to form EnginesOh, the King of Engines. EngineOh's primary weapon is the Go-OnSword, it is also armed with the defensory BeiShield. Finisher attack is the Go-on Grand Prix.

EngineOh Birca Height: 51.5 meters Length: 47.4 meters Width: 25 meters Weight: 3400 tons Speed: 740 km/hour Power Output: 1450 Engineoh recieves a power-up by performing the Engine Armament with Birca to form Engineoh Birca. Using the Bircutter, they can perform the Bircutter Slash. It is first formed in Episode 5.

EngineOh Gunpherd Height: 51.5 meters Length: 49.8 meters Width: 25 meters Weight: 3400 tons Speed: 740 km/hour Power Output: 1450 Engineoh recieves a power-up by performing the Engine Armament with Gunpherd to form Engineoh Gunpherd. They perform the Gunpherd Gunfire with the Gunpherd Gun. It is first formed in Episode 6.

EngineOh G6 Height: 51.5 meters Height: 63 meters Width: 55.5 meters Length: 25 meters Weight: 6000 tons Speed: 760 km/hour Power Output: 2500 EngineOh G6 is the combination of EngineOh and GunBirOh, created when Renn modified all six Engines for new G6 Formation based on Carrigator's fusion ability and Bomper's knowledge of Engines. Not only did the Engines had to be modified, but the Blaster Soul System had to be downloaded. All five heroes enter in a brand new cockpit and their steering wheels become Handle Busters. One of its attacks is the G6 Kick and G6 Grand Prix is the finisher which fires all its weapons in the energy form, initiated by the Go-ongers using their Handle Busters.

Engine-Oh Jetripter Height: 51.5 meters Height: 51.5 meters Width: 48..5 meters Length: 25 meters Weight: 4400 tons Speed: 800 km/hour Power Output: 2000 EngineOh G6 is the combination of EngineOh, Triptor, and Jetoras. Using its right arm's Toriper Rotor as defensive and offensive attacks. The left arm is used as the Jetras Bow in the Jetori Bullseye attack. It premiered in Episode 18.

Engine-Oh G9 Height: 70 meters Length: 60.5 to 94.4 meters Width: 33.8 to 54.5 meters Weight: 9000 tons Speed: Mach 1.5 Power Output: 4000 EngineOh G9 is the combination of EngineOh, Triptor, Jetoras, Birca, Gunpherd, Carrigator, and Jum-bowhale. This formation occurs in Episode 22. Its finishing attack is the G9 Grand Prix.

Engine-Oh G12 Height: 93 meters Length: 60.5 to 94.4 meters Width: 44.0 to 53.4 meters Weight: 12000 tons Speed: 800km EngineOh G12 is the combination of EngineOh, Gunbir-Oh, Seiku-Oh, and Kyoretsu-Oh. This formation occurs in Episode 35.