Cherokee Harness - Headlight Services Jeep Cherokee XJ 1986-2001 Headlamp Upgrade - Cibie or Hella (6054 replacement) 200mm rectangular e-code headlamps. See Headlamps page. Bulb Upgrade - H4/9003 bulbs. I highly reccomend the Osram Rallye H4 bulb with our harness. See Bulbs page do have off-road high-watt bulbs available, please inquire.Wiring · Bulbs · Headlamps · What Fits My Vehicle · FAQs H4 Upgraded Headlight Harness - K Suspension H4 Wiring Harness Upgrade for any vehicle with the H4 light plug Increase your OEM lighting output by a minimum of 50% (usually more)Save your light switch from burning up like they always doTake the load off the system and wire your lights directly to the battery!Plug 'n Play designNo wiring needed Watch our video below for some guidance on how the install will go!