John Deere 4450 Tractor Parts

The John Deere 4450 was introduced in 1982 as part of the '50 Series' tractor lineup, replacing the earlier 4440. Production continued through 1986. At its heart lies a John Deere 6.8L (414 cu in) 6-cylinder diesel engine, producing approximately 140 to 160 horsepower, depending on the exact configuration. The engine's reliable design contributed significantly to the tractor's reputation for longevity. Available transmissions included a Quad-Range transmission offering 16 forward and 6 reverse gears, or a Power Shift transmission for smoother gear changes under load. The 4450's PTO delivered around 135 horsepower, available in both 540 and 1000 RPM options to accommodate a wide range of implements. Its hydraulic system offered a capacity of approximately 29 GPM, powering multiple remote valves for hydraulic implements. It features a Category II 3-point hitch, providing ample lift capacity for tillage equipment, planters, and other implements. The 4450 was commonly used in row crop farming, hay production, livestock operations for feeding and manure handling, and various tillage applications. Distinguishing it from other models in the lineup, the 4450 offered a balance of power, features, and affordability that appealed to a broad range of farmers.