The Chelsea 680 Series Power Take-Off, part number 680XRAHX-A3GF or 680XRAHXA3GF, is a medium- to heavy-duty 8-bolt PTO designed for wire/cable mechanical shift operation. It mounts to transmissions from Eaton/Fuller, Volvo/Mack, and other compatible 8-bolt aperture gearboxes, with a deep-mount housing option suited to Mack transmission applications. The output shaft is a 1-1/4" round with key configuration, capable of delivering 56+ HP at the output. Intermittent torque is rated at 375 lb-ft (508 Nm) - check application pages for actual torque ratings specific to your installation. Shaft power output runs 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. Built for higher-torque demands such as pneumatic blower drives, it is available from Pro Gear and Transmission. Call us to confirm proper fit for your transmission application.
Features
8-Bolt mounting covers most manual transmissions with an 8-bolt PTO aperture
Wire/cable mechanical shift type
1-1/4" round output shaft with key
Intermittent torque rated at 375 lb-ft (508 Nm) - verify against application pages for your specific installation
Shaft power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
Deep-mount housing option available for Mack transmission applications
Tech Specs
- Intermittent Torque: 375 lb-ft / 508 Nm (check application pages for actual torque ratings)
- Shift Type: Wire/Cable, Mechanical
- Mounting Type: 8-Bolt
- Output Shaft Type: 1-1/4" Round with Key
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 36 HP (500 RPM), 71 HP (1,000 RPM), 107 HP (1,500 RPM) / 27 kW (500 RPM), 53 kW (1,000 RPM), 80 kW (1,500 RPM)
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Other 8-Bolt aperture transmissions
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
