The Chelsea 680GQAHX-A5XD or 680GQAHXA5XD is a medium- to heavy-duty power take-off from the Chelsea 680 Series, engineered for manual transmissions with 8-bolt PTO apertures. The 680 Series is purpose-built for higher-torque demands, including pneumatic blower and hydraulic pump applications, and is a widely used PTO for Eaton Fuller transmissions. The cast iron housing and tapered cone bearings on the output shaft deliver strong load-bearing capability. The series supports continuous operation with a 30% de-rating and carries an intermittent torque rating of 301-400 lb-ft range (verify actual rating for this configuration on Chelsea application pages). A deep mount housing option is available within the series for Mack transmission fitment. Call us to confirm proper fit for your application.
Features
Chelsea 680 Series PTO with 8-bolt mounting for most manual transmission applications
Cast iron housing with tapered cone bearings on the output shaft for high load capacity
Suited for higher-torque demands including pneumatic blowers and hydraulic pumps
Supports continuous operation with 30% de-rating applied
Series intermittent torque range: 301-400 lb-ft (verify actual rating for this specific configuration)
Deep mount housing option available for Mack transmission applications within the series
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable or Mechanical (series options)
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, or Driveline (series options)
- Intermittent Torque: 301 to 400 lb-ft range (check application pages for this configuration)
- Continuous Operation: Yes, with 30% de-rating
- Output Power: 56+ HP, 51+ kW (series rating)
- 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 (series coverage)
- Housing Material: Cast iron
Additional Information
The Chelsea 680 Series is a recognized PTO family for vocational and municipal applications including aerial lifts, dump trucks, refuse trucks, fire and rescue, snow and ice removal, and service trucks. Thirty-two output options and four internal speed ratios are offered across the 680 Series platform. Parker Chelsea documents for this series include the 680 Series Parts List (HY25-2660-M1_US), the 680 Series Sales Literature, and the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual. Not sure this is your part? 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.
