First of all, you need to make sure your engine is bad. If the driver kept going after the pump went bad and the thermostat indicated overheating, then the engine will require replacement.

If the vehicle was stopped immediately, you could try replacing the water pump.

If you determine you need an engine, I would recommend contacting our company, Low Mileage Engines. We sell used engines with an excellent warranty and can deliver to the mechanic of your choice. We also offer excellent remanufactured Jeep engines with great pricing.