John Deere 4039 Engine

The John Deere 4039 is a 3.9-liter, 4-cylinder diesel engine designed for industrial and equipment applications. Known for mechanical reliability and durable construction, the 4039 platform has been widely used in agricultural and construction equipment.

Available in factory remanufactured configurations, the 4039 engine provides dependable performance for replacement use in machinery requiring proven mid-range horsepower.