What spark plug for 1999 ranger 6-cylinder 3.0 engine?

The correct spark plug for a 1999 Ford Ranger 3.0L 6-cylinder engine depends slightly on the exact specifications of your vehicle and what was originally installed. However, the most common and widely recommended spark plug is the Autolite XP5224.

Always double-check your owner's manual for the manufacturer's recommended spark plug. If you don't have the manual, you can also consult a reputable auto parts store (like AutoZone, Advance Auto Parts, or NAPA) with your vehicle's VIN for the most accurate information. They can look up the specifications for your specific truck.