� Gearbox Type : Automatic / 8-gear 8HP45, 8HP45X, 8HP45HIS. o Amarok (2011-2022). Gearbox Type: Automatic / 8-gear 8HP45, 8HP45X, 8HP45HIS. The ZF Automatic Transmission Gearbox Service Kit is designed to ensure optimal performance and longevity for your vehicle's transmission system.