Monocle Motors was an engine company run by the Northern Cyclopes Ma Gasket, Sump and Torque.

Percy Jackson and The Olympians

The Lost Hero


Leo Valdez, who defeated the Cyclopes.

Jason Grace, Piper McLean, and Leo Valdez landed there when their dragon Festus crash landed due to an attack by Khione, the Greek goddess of snow. The Cyclopes caught Jason and Piper while Leo was off looking for Festus. The Cyclopes knocked Jason out and beat him to a pulp. Leo found his friends tied up and about to be eaten but he defeated the Cyclopes because of his pyrokentic powers. It is unknown what happened to Monocle Motors after Leo killed the Cyclopes. Or how soon it will take them to reform.


  • Monocle motors has a red eye logo.
  • According to Ma Gasket, Monocle Motors made weapons during the 2nd Titan war, but were forced to shut down because the war ended too quickly.
  • The cyclopes that run Monocle motors all have mechanical themed names.
    • Gasket: A seal which fills the space between two surfaces to prevent leakage;
    • Sump: An oil pan which is a reservoir for liquid to drain into;
    • Torque: A rotating force.
Locations (CHB)
Magical Locations: Olympus | Camp Half-Blood | Camp Jupiter | Aeolia | C.C.'s Spa and Resort | Daedalus' Workshop | Lotus Hotel and Casino | Mount Othrys | Ogygia | Pan's Cave | Sea of Monsters | The Labyrinth | Tartarus
Cities, States, and Towns: Alaska | Bar Harbor | Chicago | Detroit | Gila Claw | Jamestown | Long Island | Manhattan | New York City | Quebec | San Francisco | Vancouver | Westport
Other Locations: Apennine Mountains | Aunty Em's Gnome Emporium | Crusty's Water Bed Palace | Empire State Building | Gateway Arch | Grand Canyon | Greece | Hoover Dam | Junkyard of the Gods | Mount Saint Helens | Polyphemus' Island | ROFL | Rome | Triple G Ranch | Waterland | Mount Etna | Mount Diablo | Mount Tamalpais | Pikes Peak