What is spark plug wire order on 4.0 liter?

There's no single "spark plug wire order" for a 4.0L engine. The firing order depends entirely on the make, model, and year of the vehicle. 4.0L engines are used in many different vehicles, and each will have a unique firing order.

To find the correct spark plug wire order for *your* 4.0L engine, you need to:

1. Identify your vehicle: Know the make, model, and year.

2. Consult your owner's manual: This is the most reliable source. The firing order will be clearly stated.

3. Look online: Search online using the vehicle's make, model, year, and "spark plug wire order" or "firing order." Many automotive forums and repair manuals will have this information.

Without knowing the specific vehicle, it's impossible to provide the correct spark plug wire order.