14 of 14 Items
14 of 14 Items
If your XJ’s misfiring, idling rough, or just feels sluggish, a tune-up kit is one of the first things owners reach for. Spark plugs, plug wires, distributor cap & rotor—these wear over time, especially if you’ve got higher mileage, hot weather driving, or dirty conditions. Forums are full of people saying they get “back the liveliness” in their 4.0L after replacing those basics.
Our tune-up kits are built for Cherokees from 1984-2001. They bundle the stuff you need—spark plugs, wires, cap & rotor, maybe filters—so you don’t have to source each part separately. Having everything in one kit saves time and helps avoid mismatched parts that don’t play well together.
A good tune-up doesn’t just restore spark—it smooths out idling, helps fuel economy a bit, tames misfires, and makes driving more predictable. If you haven’t done one in a while (or ever), this is a cheap upgrade that shows up in every drive.