The Toyota 1GR-FE engine is a 4.0-liter V6 from Toyota’s GR engine family, built for durability, torque, and off-road capability. It features an aluminum alloy block with cast-iron cylinder liners, a DOHC (dual overhead camshaft) 24-valve configuration, and VVT-i (Variable Valve Timing with intelligence) on the intake camshafts in early versions, and later on both intake and exhaust (Dual VVT-i). It produces between 236 and 270 horsepower, and around 266 to 278 lb-ft of torque, depending on the version and application. Designed primarily for trucks and SUVs, the 1GR-FE has a rear- or four-wheel-drive layout and is known for its strong low-end torque, making it ideal for towing, hauling, and rugged terrain.

The 1GR-FE engine is widely used across Toyota’s global body-on-frame vehicle lineup, including models like the Toyota Tacoma, Toyota 4Runner, Toyota FJ Cruiser, Toyota Land Cruiser Prado, and Toyota Hilux (in some markets). It has also been used in the Toyota Tundra and Toyota Fortuner, showcasing its versatility in both light and heavy-duty platforms. Known for its reliability and long service life, the 1GR is popular among off-road enthusiasts and fleet operators alike. In later years, it received updates such as Dual VVT-i and an improved ACIS (Acoustic Control Induction System) for better efficiency and smoother power delivery. Its reputation for strength and resilience has made it a favorite in harsh environments and demanding applications around the world.