The Jeep Comanche offered three engine options: a 2.5-liter inline-four, a 2.8-liter V6, and a 4.0-liter inline-six.
The pickup, built from 1985 to 1992, used these three powertrains across different trims and years, with each delivering different levels of power, torque, and towing capability. This article reviews what those engines were and how they shaped the truck's performance.
Engine Options
Below is a concise rundown of the engines used in the Comanche over its production span.
- 2.5-liter inline-four (I4) — entry-level engine for base models; typically rated around 100–120 horsepower and 130–135 lb-ft of torque.
- 2.8-liter V6 — mid-range option offering more torque and smoother operation, generally producing roughly 140–165 horsepower and 170–190 lb-ft of torque.
- 4.0-liter inline-six (I6) — the workhorse in later and higher-trim models; produced about 170–190 horsepower and 220–235 lb-ft of torque.
Note: horsepower and torque varied by model year and emissions controls, and some late 1980s Comanche trims offered additional tuning or slight revisions.
2.5-Liter Inline-Four (I4)
The 2.5 L four-cylinder was the base powerplant for the earliest Comanches, delivering essential capability for the light pickup. It was known for durability and simplicity, though it offered modest acceleration and towing compared with the V6 options.
Output: approximately 100–120 hp and 130–135 lb-ft of torque, depending on year and state of tune. Transmission choices included manual gearboxes and, in later years, automatic options.
2.8-Liter V6
The 2.8 L V6 provided a middle ground between the base four-cylinder and the larger 4.0 L, balancing better torque for everyday driving and light towing with reasonable efficiency for its class.
Output: roughly 140–165 hp and 170–190 lb-ft of torque, with variations by year and driving configuration. This engine was offered on select trim levels during the mid to late 1980s into the early 1990s.
4.0-Liter Inline-Six (I6)
The 4.0 L inline-six became the defining engine for the Comanche’s later years, known for strong low-end torque and reliability. It powered most higher-trim trucks and remains a favorite among enthusiasts for its durability.
Output: about 170–190 hp and 220–235 lb-ft of torque, depending on calibration and emissions equipment. It was paired with a range of transmissions, including manual and automatic options, and offered the best overall payload and towing performance.
Summary: The Jeep Comanche offered three main engine choices—2.5L I4, 2.8L V6, and 4.0L I6—each with distinct strengths. The 2.5L was the economical starter, the 2.8L provided more grunt, and the 4.0L delivered the strongest performance for heavier loads and tougher terrain.