The Chelsea 680 Series Power Take-Off, part number 680ZFDAX-A5XD or 680ZFDAXA5XD, is an 8-bolt mount PTO built for medium- to heavy-duty applications on Eaton/Fuller and Volvo/Mack transmissions. It shifts via wire/cable mechanical actuation and delivers 56+ HP output, with shaft power rated at 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. The output shaft is a 1-1/4" round with keyway. Intermittent torque is rated at 375 lb-ft (508 Nm), verify actual torque against Chelsea application pages for your specific installation. The deep-mount housing option accommodates Mack transmission applications, and the cast iron housing with tapered cone bearings on the output shaft handles higher-torque demands such as pneumatic blowers. Call us to confirm proper fit for your truck and transmission.
Features
8-bolt mounting for broad coverage across manual transmission applications
Wire/cable mechanical shift actuation
1-1/4" round output shaft with keyway
Intermittent torque rated at 375 lb-ft (508 Nm), confirm via Chelsea application pages
Deep-mount housing option for Mack transmission fitment
Cast iron housing with tapered cone bearings on input and output shafts for high-torque durability
Tech Specs
- Intermittent Torque: 375 lb-ft / 508 Nm (Check Chelsea Application Pages for actual torque rating for your application)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 36 HP / 27 kW at 500 RPM; 71 HP / 53 kW at 1,000 RPM; 107 HP / 80 kW at 1,500 RPM
- Output Shaft Type: 1-1/4" Round with Key
- Mounting Type: 8-Bolt
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Other
Additional Information
