plug

I can't remember changing the spark plugs in my Jeep, so I decided to knock it out today. The old plugs that came out looked terrible. They are NGK plugs, and I wonder if they are the factory plugs (2005 4.0 with 172k Miles on the odometer). New plugs: AutoLite Double Platinum Spark Plug...

any body knows the size of the core plugs on the cylinder head, i have a 1982 Jeep cj7 with 151ci/2.5L L4, VIN B for AMC and Head Cast #: 702 the core plug is in the rear of the head the front have a Thermostat Thermostat open to front thanks for any help you can provide

help have new pigtail but abc letters and oem colors on plug dont match whats on wiring diagram for veichle' Does anyone know if the abc on diagram is when your looking in female end of plug or male end? 1993 jeep cherokee

Should I change plug size and gap with turbo instead of stock recommended

Hello, I need some help I needed to change out my old spark plugs and wires yesterday, but after I swapped them out with new parts the engine refuses to turn over. I have quadruple checked the firing order (153624 going CW) and have put in and taken out the plugs and wires twice, even putting...