The Chelsea 680 Series Power Take-Off, part number 680ZQDAX-A5AF or 680ZQDAXA5AF, is a medium- to heavy-duty PTO built for 8-bolt transmission openings on Eaton/Fuller, Volvo/Mack, and other compatible transmissions. Shift is accomplished via wire/cable mechanical actuation. The 1-1/4" round output shaft (with key) delivers intermittent torque rated at 375 lb-ft (508 Nm), verify your exact application on Chelsea's application pages. Shaft power output runs 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. The 680 Series cast iron housing and tapered cone bearings on the output shaft suit it well for pneumatic blower and other higher-torque vocational duty. A deep mount housing option is available for Mack transmission applications. Call us to confirm proper fit for your truck and transmission.
The Chelsea 680 Series is a cast iron PTO designed for vocational applications including aerial, dump truck, refuse, fire and rescue, snow and ice removal, service trucks, and blower/product pump duty. The 680 Series features tapered cone bearings on the output shaft for high load capacity, and the input shaft uses tapered bearings rather than needle bearings for greater load-bearing capability. A space-saving air shift cover provides maximum clearance under the truck. The series offers 32 output options including Chelsea's 360-degree rotatable flange for improved pump fitment, four internal speed ratios, and ten shift options.
Features
Chelsea 680 Series PTO, part number 680ZQDAX-A5AF or 680ZQDAXA5AF
8-bolt mounting type for broad manual transmission coverage
Wire/cable mechanical shift actuation
1-1/4" round output shaft with key
Intermittent torque rated at 375 lb-ft (508 Nm), confirm via Chelsea application pages
Shaft power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
Deep mount housing option for Mack transmission applications
Suited for higher-torque vocational duty including pneumatic blowers
Tech Specs
- Intermittent Torque: 375 lb-ft / 508 Nm (check Chelsea application pages for your specific rating)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP / 51+ kW
- Output Shaft Type: 1-1/4" Round with Key
- Mounting Type: 8-Bolt
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Other
- 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)
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 680 Series is a cast iron PTO designed for vocational applications including aerial, dump truck, refuse, fire and rescue, snow and ice removal, service trucks, and blower/product pump duty. The 680 Series features tapered cone bearings on the output shaft for high load capacity, and the input shaft uses tapered bearings rather than needle bearings for greater load-bearing capability. A space-saving air shift cover provides maximum clearance under the truck. The series offers 32 output options including Chelsea's 360-degree rotatable flange for improved pump fitment, four internal speed ratios, and ten shift options.
