Our club's inquisitive and inventive projects committee determined that the Jeep fan could fit additional cars if a simple adapter was used between the fan and the water pump flange. These adapters change the bolt circle to 2 1/2 inches and with the fan need a minimum clearance of 2 1/8". Using this adapter kit, the Jeep fan will fit the 1919-1922 Overland 4, and the 1923-1925 Overland models 91 & 92. Adapter Includes Hardware.