Description
The Chelsea 680 Series Power Take-Off, part number 680XHAHX-A3XD or 680XHAHXA3XD, is an 8-bolt mounted PTO assembly built for medium- to heavy-duty vocational applications including pneumatic blowers, dump trucks, and aerial equipment. It uses a wire/cable mechanical shift and delivers output shaft power of 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. The 1-1/4″ round output shaft is available with keyway. Intermittent torque for the 680 Series ranges from 301 to 400 lb-ft (501+ Nm), with application-specific ratings of 375 lb-ft (508 Nm) – confirm your application torque requirements before ordering. Compatible with Eaton/Fuller and Volvo/Mack transmissions with an 8-bolt PTO aperture; a deep-mount housing option supports Mack applications. The cast iron housing and tapered cone bearings on both the input and output shafts contribute to the series’ high torque capacity. A genuine Chelsea part from Pro Gear and Transmission. Call us to confirm proper fit for your specific transmission.
Features
8-Bolt mounting for broad coverage of manual transmissions with 8-bolt PTO apertures
Wire/cable mechanical shift type
1-1/4″ round output shaft with keyway option
Intermittent torque rating 301-400 lb-ft (501+ Nm); application-specific rating 375 lb-ft / 508 Nm – check application pages for actual torque ratings
Shaft power: 36 HP (500 RPM), 71 HP (1,000 RPM), 107 HP (1,500 RPM)
Deep-mount housing option available for Mack transmission applications
Tech Specs
- Intermittent Torque: 301-400 lb-ft (501+ Nm); application-specific: 375 lb-ft / 508 Nm (verify actual rating on application pages)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP, 51+ kW
- Compatible Transmissions: Eaton/Fuller, Volvo/Mack, Other
- Output Shaft Type: 1-1/4″ Round; 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)
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
