The Chelsea 680 Series Power Take-Off Assembly, part number 680XQAHX-A3GF or 680XQAHXA3GF, is a medium- to heavy-duty PTO built for 8-bolt transmission openings on Eaton/Fuller, Volvo/Mack, and other compatible transmissions. This unit uses a wire/cable mechanical shift and carries an intermittent torque rating in the 301-400 lb-ft range, with application-specific ratings up to 375 lb-ft (508 Nm) - verify your exact rating on the Chelsea application pages. Output is through a 1-1/4" round shaft with keyway, delivering 56+ HP at rated output. Shaft power output is 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. The deep-mount housing option accommodates Mack transmission installations. Designed specifically for higher-torque duty cycles including pneumatic blower drives. Available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
8-bolt mounting pattern fits most manual transmissions with 8-bolt PTO apertures
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque rating up to 375 lb-ft (508 Nm) - check application pages for confirmed rating
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: 301-400 lb-ft (501+ Nm); application-specific rating 375 lb-ft / 508 Nm - check application pages for confirmed value
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP (51+ kW)
- Compatible Transmission Manufacturers: Eaton/Fuller, Volvo/Mack, Other
- Output Shaft Type: 1-1/4" Round with Key
- Mounting Type: 8-Bolt
- Shaft Power: 36 HP (27 kW) at 500 RPM, 71 HP (53 kW) at 1000 RPM, 107 HP (80 kW) at 1500 RPM
Additional Information
