Description
The Chelsea 680 Series Power Take-Off Assembly, part number 680GSAHX-A5AF or 680GSAHXA5AF, fits manual transmissions with an 8-bolt PTO aperture and covers Eaton/Fuller and Volvo/Mack applications. This unit shifts via wire/cable mechanical actuation and features a 1-1/4″ round output shaft with key. Intermittent torque capacity ranges from 301 to 400 lb-ft (501+ Nm), with a rated peak of 375 lb-ft (508 Nm), verify the exact figure for your application on the Chelsea application pages. The cast iron housing with tapered cone bearings on the output shaft and tapered input shaft bearings deliver strong load-bearing capability suited to pneumatic blowers, dump trucks, aerial units, and refuse vehicles. Shaft power output reaches 107 HP at 1,500 RPM. Call us to confirm proper fit for your transmission.
Features
8-Bolt mounting for broad coverage across compatible manual transmission applications
Wire/cable mechanical shift actuation
1-1/4″ round output shaft with key
Intermittent torque rating 301-400 lb-ft (501+ Nm); 375 lb-ft (508 Nm) peak, verify on 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 available for Mack transmission applications
Tech Specs
- Intermittent Torque: 301-400 lb-ft (501+ Nm); 375 lb-ft / 508 Nm, check application pages for actual rating
- 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 (1,000 RPM), 107 HP (1,500 RPM) / 27 kW (500 RPM), 53 kW (1,000 RPM), 80 kW (1,500 RPM)
- Dimensions (H x W x L): 8.38″ x 10.38″ x 10.75″









