Driver(s): Jim Koehler
Engine: Blown 575 Chevrolet Block
Horsepower: 1800
Transmission Coan/Bewick Turbo 400
Tires 66" Terra
Hot Wheels, Speed Channel, RJS Racing Equipment, Coan powersports, Lucas Oil, ISP, NGK Spark Plugs, Masters Tool & Die, Wiseco Performance Products, Aristo Cast, PTM Corporation, Van Fiberglass, SNS Chrome, Kinsler, Burkard, Boyce Equipment & Parts Company, Bewick Transmission, Bell helmets, Aurora Bearing Company, Auto-Air Colors, SATA, Crossroads, B&M, Modern Stripping, GreenGrease.net, Dynamic Speed Center, Smullen Fire Trucks, UBI Sott, Visit Las Vegas
In 1997, a Monster Jam® truck with a mind of its own busted onto the Monster Jam scene. Avenger was created with a hot rod in mind, 1957 body, and only one person capable of handling its violent nature: Jim Koelher. Jim and Avenger have been to every Monster Jam World Finals since it first began in 1999. Jim acknowledges the fans in helping him make it to the Monster Jam World Finals because Avenger was voted “Fan Favorite.” Avenger had two bigger event highlights, when it was crowned the Monster Jam World Finals Freestyle Champion in 2003 and again in 2011.