The Chelsea 680 Series Power Take-Off Assembly, part number 680GFAHX-P3XY or 680GFAHXP3XY, is a medium- to heavy-duty PTO built for 8-bolt transmission openings on Eaton/Fuller, Volvo/Mack, and other compatible transmissions. It uses a wire/cable mechanical shift and delivers a 1-1/4" round output shaft with keyway. Intermittent torque rating for this series reaches up to 375 lb-ft (508 Nm) - check application pages for actual torque ratings on your specific installation. Shaft power output is rated at 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. The deep-mount housing option makes it a practical fit for Mack transmission applications. A genuine Chelsea part from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
8-Bolt mounting for broad coverage across Eaton/Fuller, Volvo/Mack, and other 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 actual rating on application pages
Shaft power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
Deep-mount housing option available 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
- Transmission Manufacturer: 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)
- 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.
