The Chelsea 680 Series Power Take-Off, part number 680XHAHX-P3XY or 680XHAHXP3XY, is an 8-bolt mount PTO built for medium- to heavy-duty manual transmission applications. It uses a wire/cable mechanical shift and delivers output power of 56+ HP (51+ kW), with shaft power rated at 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. Intermittent torque is rated at 375 lb-ft (508 Nm) - check application pages for actual torque ratings on your specific installation. The 1-1/4" round output shaft (with key option available) suits a wide range of hydraulic pump configurations. A deep-mount housing option supports Mack transmission installations. The 680 Series was designed for higher-torque vocational work including pneumatic blowers, dump trucks, and refuse applications. Call us to confirm proper fit for your transmission.
Features
8-Bolt mounting for broad manual transmission coverage including Eaton/Fuller and Volvo/Mack
Wire/cable mechanical shift type
Intermittent torque rating: 375 lb-ft (508 Nm) - verify against application pages for your installation
Shaft power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
1-1/4" round output shaft with key option available
Deep-mount housing option 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
- Output Power: 56+ HP / 51+ kW
- Transmission Manufacturer: Eaton/Fuller, Volvo/Mack, Other
- Output Shaft Type: 1-1/4" Round, 1-1/4" Round with Key
- Mounting Type: 8-Bolt
- Shaft Power: 36 HP (500 RPM), 71 HP (1000 RPM), 107 HP (1500 RPM) / 27 kW (500 RPM), 53 kW (1000 RPM), 80 kW (1500 RPM)
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
