The Toyota 2.5 D-4D (2KD-FTV) is a durable and widely used 2.5-liter, 16-valve, DOHC, common-rail direct injection turbocharged diesel engine. Known for its excellent reliability and fuel efficiency, it provides dependable power and strong low-end torque for popular models like the Toyota Hilux pickup and Fortuner SUV. It balances performance with economy, making it a workhorse engine for diverse conditions.