The Chelsea 680 Series Power Take-Off, part number 680XSDAX-P5XD or 680XSDAXP5XD, is a medium- to heavy-duty 8-bolt mount PTO built on a cast iron housing with tapered cone bearings on the output shaft. Shift type is wire/cable mechanical. The output shaft measures 1-1/4" round with keyway, and the unit delivers 56+ HP output power. Intermittent torque rating for this series reaches 375 lb-ft (508 Nm) - check application pages for the actual rating in your installation. Shaft power at common engine speeds: 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. The deep-mount housing option accommodates Mack transmission applications, and the unit is also compatible with Eaton/Fuller and other 8-bolt transmission openings. Typical vocational uses include pneumatic blowers, dump trucks, aerial equipment, and refuse vehicles. Call us to confirm proper fit for your specific transmission.
Features
8-bolt mounting for broad coverage across manual transmission applications
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque up to 375 lb-ft (508 Nm) - verify rating for your application
Cast iron housing with tapered cone bearings on input and output shafts for higher load capacity
Deep-mount housing option available for Mack transmission fitment
Tech Specs
- Intermittent Torque: 375 lb-ft / 508 Nm (check application pages for actual rating in your installation)
- 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 (1000 RPM), 107 HP (1500 RPM) / 27 kW (500 RPM), 53 kW (1000 RPM), 80 kW (1500 RPM)
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Other 8-bolt openings
- Continuous Operation: Yes, with 30% de-rating
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
