This article is about a/an mecha robo in Engine Sentai Go-Onger.

SeiKuu-O
Combined From:	Engine Toripter Engine Jetras Engine Jum-bowhale
Sentai Show:	Engine Sentai Go-Onger
First Appearance:
Last Appearance:
Number of Episode Appearances:	Full list of appearances
Length:	40.5 to 77 m
Width:	28.6 to 43.6 m
Height:	53 m
Weight:	3000 t
Speed:	km/h

"Engine Fusion - Mission Start! SeiKuu-O Tune up! Go-on!"

Engine Gattai SeiKuu-O (炎神合体セイクウオー, Enjin Gattai Seikuuō^?), known as the "Sky Punching King of the Heavens" (Sora o Seisuru Tenki no O), is formed when Engine Toripter, Jetras and Jum-bowhale combine.

Attacks are Toripcutter (Toripukatta), Jetras Boomerang (Jettorasu Bumeran), Jetori Turbulence (Jettori Tabyuransu), Seikuu Sonic (Seiku Sonikku) and its finisher is Seikuu Impulse (Seiku Inparusu).

Engine-O G9

See also: SkyRev Megazord

"G9 Formation - Engine Fusion! Engine-O G9 Tune up! Go-on!"

Engine-O G9 (エンジンオーＧ９, Enjin'ō Jī Nain), known as the "Earth and Air Reigning King" (空と大地に君臨する王, Sora to Daichi ni Kunrin suru Ō), is a combinations of Engines 1 to 9, piloted by the five Go-Ongers and the Go-On Wings team. The combination is simple, with Engines Toripter and Jetras landing on Engine-O G6's shoulders and Engine Jum-bowhale attaching to its back, Toripter's tails forming "goggles" for Speedor and Jetra's rudder and elevators form the helmet. Its finisher is G9 Grand Prix.

Other Combinations

• With Engine Gunpherd, SeiKuu-O becomes SeiKuu-O Gunpherd (Seikuo Ganpado), Toripter's turrets and the Gunpherd Gun in its Guntori Gunfire (Gantori Ganfaiya).

  

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  With Engine Birca, SeiKuu-O becomes SeiKuu-O Birca (Seikūō Baruka), using the Bircutter and Jetras's fangs in its Birtras Torahawk (Barutorasu Torahōku).
• Engine-O G9 combines with Engine Gattai Kyouretsu-O to form Engine-O G12.
• The Samurai Formation 23 is a formation between SamuraiHaOh and Engine-O G12 where Engine-O G9 breaks off to join an attack formation.

See Also

Mach Megazord