The Chelsea 680GSAHX-S3AF is an 8-bolt power take-off from the Chelsea 680 Series, built for medium- to heavy-duty manual transmission applications on Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other compatible platforms. The 680 Series uses a cast iron housing with tapered cone bearings on the output shaft, a design that supports higher-torque work such as pneumatic blowers. This unit carries an air shift cover that saves space and maximizes clearance under the cab. The 680 Series supports continuous operation with a 30% de-rating and intermittent torque ratings up to 375 lb-ft (508 Nm). Available from Pro Gear and Transmission.
Features
8-bolt mounting for broad manual transmission coverage including Eaton/Fuller and Volvo/Mack applications
Air shift (wire/cable or mechanical shift options in the 680 Series)
Cast iron housing with tapered cone bearings on the output shaft
Intermittent torque rating: 375 lb-ft (508 Nm); continuous operation with 30% de-rating
SAE A pump flange output
Designed for higher-torque demands such as pneumatic blowers, aerial, dump, and refuse applications
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Air Shift (Wire/Cable or Mechanical)
- Output Type: SAE A Pump Flange
- Intermittent Torque: 375 lb-ft (508 Nm) - check application pages for actual rating
- Continuous Operation: Yes, with 30% de-rating
- Transmission Compatibility (Series): Eaton/Fuller, Volvo/Mack, Daimler/Detroit, Other
- Housing: Cast Iron
- Output Shaft Bearings: Tapered Cone
- Output Power (Series): 56+ HP, 51+ kW
- Shaft Power (Series): 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
