![GROCO 6 Port Oil Change System w/Reversing Switch - 12V [G-6A 12V]](https://www.dockfittingworks.com/wp-content/uploads/2026/10/groco-6-port-oil-change-system-w-reversing-switch-12v-g-6a-12v.webp)
6 Port Oil Change System with Reversing Switch – 12V
Features:
- Powerful Gear pump Delivers Nearly twice the Flow as Competitive Models
- TouchPad Controlled
- Bronze Manifold System
- System Sizes from 3 Valves to 6 Valves
- Resettable Overcurrent and Dry Run Protection
- Cover Conceals Pump and Circuitry on G Series
- Oil Pan Adaptors Available for all Common Marine engines
![GROCO 6 Port Oil Change System w/Reversing Switch - 24V [G-6A 24V]](https://www.dockfittingworks.com/wp-content/uploads/2026/10/groco-6-port-oil-change-system-w-reversing-switch-24v-g-6a-24v.webp)
![GROCO 4 Port Oil Change System w/Reversing Switch - 12V [G-4A 12V]](https://www.dockfittingworks.com/wp-content/uploads/2026/10/groco-4-port-oil-change-system-w-reversing-switch-12v-g-4a-12v.webp)
![GROCO 3 Port Oil Change System w/Reversing Switch - 24V [G-3A 24V]](https://www.dockfittingworks.com/wp-content/uploads/2026/10/groco-3-port-oil-change-system-w-reversing-switch-24v-g-3a-24v.webp)