King Caucasus Kabuto (Japanese: キングコーカサスカブト) is from the Super Sentai series "Ohsama Sentai King-Ohger" (2023–2024), which never received a Power Rangers adaptation and is therefore Japan-exclusive. It is the robot form of the Caucasuskabuto Castle (コーカサスカブト城), the royal castle of the kingdom of Shugodom, styled after a Caucasus/Atlas beetle. In the series it is the oldest "Shugod" (guardian-god mecha) and functions not as a single Ranger's team mecha but as a colossal castle-mecha; it is non-sentient and can only be operated by a descendant of Shugodom's royal family using the Ohger CrownLance (within the story tied to the red king Gira / Kuwagata Ohger).

The mecha performs a three-stage transformation: from castle, through a beetle/vehicle form (Shugod mode, a tank/ship hybrid), to the colossal robot King Caucasus Kabuto. It wields the Guardian Weapon known as the Hercules Axe; its finisher ("King Caucasus Kabuto Finish") channels golden energy into the axe for a powerful slash. Its defining trait is combination: King Caucasus Kabuto joins with all the other Shugods (the King-Ohgers' insect mecha) to form the grand combination God King-Ohger — at 20 united units, the largest mecha combination in Super Sentai up to that point.

The DX toy was released by Bandai (Japan) on 5 August 2023 as the "DX King Caucasus Kabuto Guardian Weapon Hercules Axe Set." Made of high-grade plastic, it is distinguished by an elaborate high-gloss chrome (metallic) plating. The item reproduces the three-stage transformation (castle → Shugod → robot), stands roughly 380 mm tall in robot mode, and can be assembled with the separately sold DX Shugods into the approximately 490 mm God King-Ohger; the Hercules Axe is included as an accessory. Because King-Ohger was never adapted into Power Rangers, this mecha exists only as a Japanese DX release and was never issued as a Power Rangers toy.