The Chelsea 680 Series Power Take-Off, part number 680GFAHX-A3XY or 680GFAHXA3XY, is an 8-bolt mounted PTO designed for medium- to heavy-duty manual transmission applications. It uses a wire/cable mechanical shift and features a 1-1/4" round output shaft with keyway. Intermittent torque rating for this series is 375 lb-ft (508 Nm) - verify actual torque on the application pages for your specific installation. Shaft power delivery runs 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. The 680 Series suits transmissions from Eaton/Fuller and Volvo/Mack, making it a practical choice for dump trucks, blower applications, service trucks, and aerial equipment. Call us to confirm proper fit for your transmission.
Features
8-bolt mounting for broad coverage across manual transmission applications
Wire/cable mechanical shift type
1-1/4" round output shaft with key
Intermittent torque rating: 375 lb-ft (508 Nm) - check application pages for actual values
Shaft power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
Compatible with Eaton/Fuller and Volvo/Mack transmission platforms
Tech Specs
- Intermittent Torque: 301-400 lb-ft, 501+ Nm, 375 (Check Application Pages for Actual Torque Ratings) lb-ft, 508 (Check Application Pages for Actual Torque Ratings) Nm
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP, 51+ kW
- Transmission Manufacturer: Volvo/Mack, Eaton/Fuller, Other
- Output Shaft Type: 1-1/4" Round, 1-1/4" Round w/ Key
- Mounting Type: 8-Bolt
- Shaft Power: 500 RPM: 36, 1000 RPM: 71, 1500 RPM: 107 HP, 500 RPM: 27, 1000 RPM: 53, 1500 RPM: 80 kW
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
