If you need a replacement control box for your Skyjack scissor lift, this is the one! Part numbers 156879 and 156991 fit multiple Skyjack models including SJIII 3215, 3219, 3220, 3226, 4620, 4626, 4632, 6826, and 6832. The installation couldn't be simpler - it's plug and play! Just remove your old or broken unit and connect this new one. The quality is top-notch with premium materials and cutting-edge design that ensures perfect compatibility with your equipment. No complicated programming or special tools needed. These control boxes are built to withstand tough working conditions and provide reliable performance day after day. Perfect for maintenance facilities, construction companies, or anyone operating Skyjack equipment. The precise engineering means it will integrate seamlessly with your lift's existing systems. Having a reliable control box is crucial for safe and efficient operation - this one delivers exactly what you need. Keep your equipment running smoothly without expensive downtime. The durability means you won't be replacing this again anytime soon. Whether you're a professional mechanic or facility manager, this replacement part will get your equipment back in service quickly and reliably. Stock up to avoid future downtime!