4.0L Remanufactured Engine L4091JAF | Jeep Cherokee / Jeep Comanche / Jeep Wrangler 1991

Remanufactured 4.0L Inline-6 Engine Assembly | Jeep Cherokee / Jeep Comanche / Jeep Wrangler (1991)

Looking for a dependable replacement engine for your Jeep Cherokee, Comanche, or Wrangler? The Powertrain Company 4.0L engine is expertly remanufactured to meet and exceed original equipment (OE) performance standards, restoring the power, torque, and reliability that made this legendary Jeep engine so respected.

This 4.0L engine is precision remanufactured with premium OE-quality parts, updated components, and rigorous testing to ensure smooth performance and long-term dependability. Perfect for off-road adventures, daily driving, and classic Jeep restorations alike.

Why Choose a Powertrain Company Remanufactured 4.0L Jeep Engine?

Every Jeep 4.0L engine undergoes a meticulous rebuild process to deliver like-new performance:

• Complete disassembly, cleaning, and inspection of all components

• Precision machining to restore exact OEM factory tolerances

• High-quality pistons, rings, bearings, and gaskets installed

• Updated components to improve durability and reliability

• Pressure and leak testing for proven dependability

• SIM-tested for verified horsepower and torque before shipping

With a Powertrain Company 4.0L engine, you get a fully remanufactured unit that’s built to last, ready to install, and backed by expert craftsmanship.

Order your remanufactured 4.0L Jeep engine today and bring your Cherokee, Comanche, or Wrangler back to peak performance.

Vehicle Compatibility

This remanufactured 4.0L engine fits the following models:

Jeep Cherokee

• 1991 Jeep Cherokee

Jeep Comanche

• 1991 Jeep Comanche

Jeep Wrangler

• 1991 Jeep Wrangler