The Chelsea 680 Series Power Take-Off Assembly, part number 680GQAHX-A5RE or 680GQAHXA5RE, is a medium- to heavy-duty PTO built for 8-bolt transmission openings on Eaton/Fuller, Volvo/Mack, and other compatible transmissions. The cast iron housing and tapered cone bearings on the output shaft contribute to the 680 Series' intermittent torque rating of 375 lb-ft (508 Nm - check application pages for actual ratings). Shift is wire/cable mechanical. The 1-1/4" round output shaft with keyway drives demanding accessories including pneumatic blowers. Shaft power delivery is 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. A deep-mount housing option supports Mack transmission installations. Call us to confirm proper fit for your specific transmission and application.
The Chelsea 680 Series is suited for vocational markets including aerial, dump truck, refuse, fire and rescue, snow and ice removal, service trucks, and blower and product pump applications. The 680 Series supports continuous operation with a 30% de-rating. Tapered input shaft bearings provide greater load-bearing capability compared to needle bearing designs. The series offers 32 output options and four internal speed ratios, giving technicians flexibility when matching pump flanges and output configurations to the application.
Features
Chelsea 680 Series PTO Assembly, part number 680GQAHX-A5RE
8-bolt mounting for Eaton/Fuller, Volvo/Mack, and other compatible transmissions
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque rating: 375 lb-ft / 508 Nm (verify actual rating on application pages)
Deep-mount housing option available for Mack transmission applications
Shaft power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
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
The Chelsea 680 Series is suited for vocational markets including aerial, dump truck, refuse, fire and rescue, snow and ice removal, service trucks, and blower and product pump applications. The 680 Series supports continuous operation with a 30% de-rating. Tapered input shaft bearings provide greater load-bearing capability compared to needle bearing designs. The series offers 32 output options and four internal speed ratios, giving technicians flexibility when matching pump flanges and output configurations to the application.
