Aluminum Running Board Car Model: TOYOTA Highlander D Material: Alunimum and EPDM. Aluminum Running Board Part No:RB-HL04 Car Model: TOYOTA Highlander D Material: Alunimum and EPDM. 1. Give your vehicle a sure step that prevents slipping in any weather. 2. Solid aluminum construction that mounts to your frame with a custom mounting kit, and a super high-grip specialized step. 3. No drilling, No ...