The Chelsea 680 Series Power Take-Off, part number 680XHAHX-A3XK or 680XHAHXA3XK, is a medium- to heavy-duty 8-bolt PTO built for high-torque vocational applications including pneumatic blowers, dump trucks, and aerial equipment. It features a cast iron housing with tapered cone bearings on the output shaft for strong load-bearing capability, and a 1-1/4" round output shaft with key. Shift is wire/cable mechanical. The unit covers Eaton/Fuller and Volvo/Mack transmissions, with a deep-mount housing option available for Mack applications. Shaft power ratings run 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. Call us to confirm proper fit for your transmission and application.
Features
8-bolt mounting for broad coverage of manual transmission applications
Wire/cable mechanical shift type
1-1/4" round output shaft with key
Intermittent torque rating: 375 lb-ft / 508 Nm (verify actual rating on Chelsea application pages)
Shaft power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
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
- 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 (1,000 RPM), 107 HP (1,500 RPM) / 27 kW (500 RPM), 53 kW (1,000 RPM), 80 kW (1,500 RPM)
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
