If your missing an end cap buy Westin's R5 Nerf Step Bars replacement end caps. Fits on to all Westin R5 Nerf Step Bars (regular size or wheel-to-wheel) which includes 4 end caps.

• Incl. 4 End Caps With Integrated LED Lights And Wiring Harness
• Solid State Relays Are Easy To Hide; Resist Weather/Vibrations
• Bolts On To All R5 Nerf Step Bars And R5 W2W Nerf Step Bars
• Bright White Light Illuminates Step Bar And Door Sill Area
• Tough Plastic Injection Molded End Caps Screw On Easily
• Magnetic Switches Control The Lights When Doors Open
• Makes Getting Into The Vehicle Safer At Night
• Black molded plastic construction
• Plug And Play Harness
• No drilling required
• Replacement end cap
• 1 Year Warranty