The Chelsea 680 Series Power Take-Off Assembly, part number 680GQAHX-P3RF or 680GQAHXP3RF, is a medium- to heavy-duty 8-bolt PTO suited for Eaton/Fuller and Volvo/Mack manual transmission applications. It uses a wire/cable mechanical shift and delivers a 1-1/4" round output shaft with keyway. Intermittent torque ratings for this series reach 375 lb-ft (508 Nm); verify actual torque for your application in the Chelsea application pages. Shaft power output scales from 36 HP at 500 RPM to 107 HP at 1500 RPM. The cast iron housing and tapered cone bearings on the output shaft suit higher-torque work like pneumatic blowers, and a deep-mount housing option addresses Mack transmission clearance needs. A genuine Chelsea part, sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Chelsea 680 Series, 8-bolt mounting for broad manual transmission coverage
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque up to 375 lb-ft (508 Nm) - check application pages for your specific rating
Shaft power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
Deep-mount housing option compatible with 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 Compatibility: Eaton/Fuller, Volvo/Mack, Other
- Output Shaft Type: 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.
