The Baja Designs 448091 is a 40-inch OnX6+ LED light bar sold as a roof-mount kit for the Polaris RZR Pro R. The sleek profile of the 40-inch OnX6+ LED light bar produces 39,430 raw lumens at 28.2A to illuminate zones 3 and 4 due to the high-performance spot reflectors. That long-throw pattern suits high-speed running on trails, dunes, and dry lake beds. Against the 40-inch S8 kit, the manufacturer lists 25,400 raw lumens at 240 W, so this kit is the choice when reach matters more than power draw. uService Technology - the ability to change and customize your lens without voiding your warranty is another reason to pay for this bar, since you can adjust the optic without giving up coverage.
Per the manufacturer, this kit is for the 2022–2026 Polaris RZR Pro R. Everything needed for a bolt-on setup comes in the box: the OnX6+ 40-inch light bar, mounting brackets, wiring harness, and all essential components, so buyers searching for a RZR Pro R 40 inch roof light bar kit with matched brackets and harness get a complete package. Owners who want a plug-in, no-guesswork fit will appreciate that the harness and brackets are designed for this specific roof. Key search terms include OnX6+ 40 inch roof bar Pro R, 39430 lumen UTV light bar, and Baja Designs 448091 install.
The manufacturer lists fitment for 2022–2026 Polaris RZR Pro R models. Model-year coverage is described inconsistently across sources, so confirm your exact year and roof configuration with the manufacturer before ordering.
Per the manufacturer, the OnX6+ is rated at 39,430 raw lumens and 355 W (28.2 A), while the S8 is rated at 25,400 raw lumens and 240 W (16 A). The S8 specification highlights an amber backlight marker feature, which the OnX6+ listing does not mention.
Owners on user forums report that a rollover or a large low-hanging branch can break a roof-mounted light bar or its mounting brackets, so protective mounting or a bar guard is worth considering for trail use.
Per the manufacturer's Polaris Pro-R roof kit install sheet, you start by folding back the roll cage boot and feeding the light connector up through the bracket opening. Attach each bracket to the roof with a 10mm socket and T40 Torx, using the included nyloc nuts and washers, and leave the bolts loose for adjustment. With an assistant, seat the bar in its brackets using a 7/16-inch wrench. Center the bar and tighten the two rear T40 bolts, then remove the bar, tighten the front bolts, and reinstall it. The sheet also calls for cutting material and widening a bracket hole into a slot so a bolt can pass, so read that step carefully before cutting anything. Owners on user forums suggest using larger washers under the roof bolts so the fasteners do not pull through the plastic roof panel.
