The Chelsea 680 Series Power Take-Off, part number 680XHAHX-A3GK or 680XHAHXA3GK, is a medium- to heavy-duty PTO built for manual transmissions with 8-bolt PTO apertures. The 680 Series features a cast iron housing with tapered cone bearings on the output shaft for high torque capability and extended service life. The series is rated for intermittent torque in the 301-400 lb-ft range and supports continuous operation with a 30% de-rating. Shift options include wire/cable and mechanical actuation. Compatible transmission manufacturers include Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and others. The 680 Series suits higher-torque vocational work such as pneumatic blowers, dump bodies, aerial equipment, and refuse applications. Call us to confirm proper fit for your application.
Features
8-bolt mounting for common medium- and heavy-duty manual transmissions
Cast iron housing with tapered cone bearings on both input and output shafts
Intermittent torque rating: 301-400 lb-ft; continuous operation supported with 30% de-rating
Wire/cable and mechanical shift options available within the 680 Series
Multiple output types: SAE A, SAE B, ISO 7652 pump flange, and driveline
Deep mount housing option available for Mack transmission applications
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable or Mechanical
- Intermittent Torque: 301-400 lb-ft (check application pages for actual rating)
- Continuous Operation: Yes, with 30% de-rating
- Output Types: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and others
- Housing Material: Cast Iron
- Bearing Type: Tapered Cone (input and output)
Additional Information
The Chelsea 680 Series PTO is suited to vocational and municipal markets including aerial, snow and ice removal, fire and rescue, dump truck and trailer, service trucks, refuse, and blower and product pump applications. Parker Chelsea documents available for this series include the 680 Series Owner's Manual, the 680 Series Parts List (HY25-2660-M1_US), and the Chelsea PTO General Information Catalog. Part number 680XHAHX-A3GK is also referenced as SP680XHAHX-A3GK. Not sure this is the right PTO for your transmission? Give us a call.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
