Introduced in 1968, the Toyota Hilux - sold in America as the Pickup - gained popularity thanks to its straightforward mechanics, restrained power levels, and reinforced drivelines. Toyota's image for producing nearly indestructible trucks was firmly established by the 1990s, and this extended to the 4Runner as well.

The cast-iron 22R-E stands out as the core element behind Toyota's reputation for longevity in the 1980s and 1990s. This engine represented a fuel-injected version of the 2.4-liter 22R inline-four. While not flashy or high-output, delivering about 105 to 116 horsepower based on the year, these powerplants were renowned for their longevity. The 22R-E served as a reliable workhorse engine rather than something for enthusiasts to admire.

Its cast-iron block was key to this endurance. Although iron adds mass, it offers greater resilience to harsh conditions, ideal for a truck motor. The iron construction provided a solid base capable of withstanding ongoing demands. Typical Toyota trucks and 4Runners endured thermal cycles, rigorous operation, neglect in maintenance, hauling loads, and extended low-speed runs without issues.

The 22R-E incorporated a forged-steel crankshaft, an aluminum single-cam cylinder head, and a timing chain. These traditional robust features complemented the contemporary fuel injection. Such elements simplified upkeep, troubleshooting, and extending service life. Though not exciting in specs for speed seekers, they rendered the 22R-E dependable.

Creating a reputation through reliability

This dependability was crucial given the engine's applications. The 22R-E drove Toyota Pickups and 4Runners at a time when the brand's compact trucks earned acclaim for tackling tough jobs effortlessly. In the United States, the Pickup and initial 4Runner shared platforms, with the first 4Runner essentially an SUV built on truck foundations. A dependable four-cylinder was essential, shaping the vehicle's overall character.

Consequently, the engine gained fame not for speed but for its refusal to fail. Properly cared for units often exceed hundreds of thousands of miles, with some Hilux examples surpassing a million miles. The Hilux's storied status reinforced this perception. These vehicles were basic, practical, and tough to destroy, and the 22R-E embodied that ethos.

While the cast-iron block alone did not render the Toyota Pickup and 4Runner indestructible, it supplied a robust base enabling the rest. Heavy, straightforward, and reinforced, it was precisely the foundation needed for an enduring truck.