The Chelsea 680 Series Power Take-Off Assembly, part number 680XQAHX-A5GF or 680XQAHXA5GF, is a medium- to heavy-duty 8-bolt PTO built for high-torque vocational applications including pneumatic blowers, dump trucks, refuse, and aerial units. The cast iron housing uses tapered cone bearings on the output shaft and tapered bearings on the input shaft for strong load-bearing capability. Output is through a 1-1/4" round shaft with keyway. Shift is wire/cable mechanical. The series covers Eaton/Fuller and Volvo/Mack transmissions, with a deep-mount housing option for Mack applications. Shaft power reaches 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. Confirm fitment for your specific transmission before ordering, or call Pro Gear and Transmission to verify the right match.
The Chelsea 680 Series is suited for aerial, snow and ice removal, fire and rescue, dump truck and trailer, service trucks, refuse, and blower and product pump applications. The 360-degree rotatable flange output option and four internal speed ratios within the series provide broad fitment flexibility across vocational platforms.
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
Cast iron housing with tapered cone bearings on output shaft and tapered input shaft bearings
Deep-mount housing option covers Mack transmission applications
Shaft power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
Tech Specs
- Intermittent Torque: 301-400 lb-ft (501+ Nm); 375 lb-ft / 508 Nm (check application pages for actual torque ratings)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP (51+ kW)
- Transmission 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)
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 680 Series is suited for aerial, snow and ice removal, fire and rescue, dump truck and trailer, service trucks, refuse, and blower and product pump applications. The 360-degree rotatable flange output option and four internal speed ratios within the series provide broad fitment flexibility across vocational platforms.
