Who makes the 4Runner engine?
The engine behind the Toyota 4Runner is built by Toyota Motor Corporation.
Across the model’s history, Toyota has designed and produced the engines used in the 4Runner. While regional models may share components from suppliers for certain parts, the core engine blocks and assemblies are produced by Toyota’s own powertrain divisions and plants around the world, reflecting the lineage from early four-cylinders to the current 4.0-liter V6 powerplant.
In-house Toyota engine families behind the 4Runner
The 4Runner has relied on a progression of Toyota-built engines, moving from reliable four-cylinders to modern V6 powertrains. The main Toyota engine families that have powered the 4Runner are listed below.
- 22R/22RE inline-four gasoline engines — used in early 4Runners, known for durability.
- 3VZ-E V6 — a 3.0-liter V6 used in the early to mid-1990s in some markets.
- 5VZ-FE 3.4-liter V6 — a larger V6 used in late 1990s to early 2000s models.
- 1GR-FE 4.0-liter V6 — the current and long-running powerplant in modern 4Runners.
These engines illustrate Toyota’s in-house development from simpler four-cylinders to capable V6 configurations, all designed and built by Toyota for use in the 4Runner lineup.
Notes on production and variations
Exact engine codes and production details can vary by model year and market. Because these engines are engineered in-house by Toyota, the core technology remains within the brand, even as regional assembly lines adapt to local regulations and supply chains.
Summary
In short, Toyota Motor Corporation is the maker of the 4Runner’s engine. Over the years the model has been powered by a sequence of Toyota-engineered families—beginning with the 22R/22RE four-cylinders and evolving through the 3VZ-E and 5VZ-FE to the current 1GR-FE 4.0-liter V6—demonstrating Toyota’s commitment to in-house powertrain development. For precise engine details on a specific 4Runner, refer to the vehicle’s VIN or owner’s manual.
