Dodge Ram Super Heavy Duty Conversion Harness with 4 relays (two for each side: 1 for right low beam, 1 for right high beam, 1 for left low beam, 1 for left high beam) 9004 to 9004/9007 (converting from a single 9004 factory bulb to the dual 9004 & 9007 bulb Sport Model headlights). Allows use of all low beam bulbs on low beam (both 9004 & 9007) and all high beam bulbs on high beam.

Note: Only 1 needed for both left and right headlights- Includes 1 pair (2) Separate wire harnesses for left and right side headlights for dual or single batteries.

If you have a Dodge Ram Sport you will need to order the Dual Battery Super Heavy Duty Wire Harness w/4 relays 9004/9007 and use 2 sets (pairs) of this wire harness (one for 9004 & one for 9007), if you have a Dodge Ram and converting to the Sport headlights you just need 1 set of this wire harness.