The 2005 Ford Explorer Sport Trac offered two engine options: a 4.0-liter V6 as standard and an optional 4.6-liter V8 for higher trim levels.
In the 2005 lineup, Ford aimed to balance payload and versatility with a mid-size pickup-inspired SUV. The Sport Trac shared its engine family with other Ford trucks and SUVs of the era, giving buyers a choice between a capable V6 for daily driving and a larger V8 for increased towing and off-road performance. Exact engine configuration can vary by model and production date, so checking the vehicle’s VIN or window sticker is the best way to confirm which engine your specific Sport Trac has.
Engine options
The following summarizes the two gasoline engines that were available for the 2005 Sport Trac.
4.0-liter V6 (SOHC) — A mid-size V6 offering around 210 horsepower and roughly 254 lb-ft of torque. This engine was the standard choice on many Sport Trac models and is known for a balance of daily usability and payload capability.
4.6-liter V8 (Modular) — An optional larger V8 delivering more torque and stronger towing capability, with roughly 235–250 horsepower and about 290–300 lb-ft of torque depending on the exact configuration and year.
Both engines were paired with Ford’s automatic transmission lineup of the era, and the choice typically influenced towing, acceleration, and fuel economy more than overall daily practicality. To know the exact engine in a particular vehicle, verify the window sticker or VIN.
Summary
In short, the 2005 Ford Explorer Sport Trac could be equipped with a standard 4.0-liter V6 or an available 4.6-liter V8. The V8 offered more power and torque for towing and heavier use, while the V6 provided adequate performance for everyday driving. Always confirm the engine on a specific vehicle via its documentation or VIN for precise specifications.