The Baja Designs OnX6+ 40-inch straight bar (MPN 454003) is a clear-lens driving/combo light built around the brand's High Speed Spot reflector, which the manufacturer says is the same optic its Team Enlightened racers use. Its aircraft-grade aluminum housing carries a mil-spec hard anodize finish, and the manufacturer's OnX6+ listings cite IP69K water resistance and IK10 impact resistance. Against a stock bumper light or a generic bar, the case for this one is durability plus a beam that reaches down the trail while the wide driving portion still lights the near field, backed by a limited lifetime warranty.
Because the bar uses industry-standard 40-inch sizing, it mounts through common aftermarket bracket systems on truck, SUV, and off-road front bumpers. Hi/lo switching depends on the 640119 harness, which the manufacturer says must be ordered separately because this bar ships without one. Owners on user forums describe pulling the bumper to re-aim the light and routing the wiring so nothing gets pinched during reassembly. Searches for a 40 inch driving combo LED light bar, Baja OnX6+ hi/lo harness, or Baja 454003 bumper install usually point to these exact questions.
No. The manufacturer states this bar does not include a harness and that the 640119 OnX6+ harness must be used for 30-50 inch OnX6+ bars.
Yes, the bar supports high and low modes through the included Hi-Low dongle. The manufacturer notes that using the dimming mode requires a separate switch to ground the green control wire.
Mounting is a moderate DIY job. The manufacturer publishes an installation sheet for the 454003, so review it before starting. Owners on user forums report attaching the brackets to two 14mm bolts at the back of the bumper, then sliding the bar into the bumper from the top. Expect to remove the bumper to make fine aim adjustments later, and double-check that no wires are pinched when reinstalling the bumper.
