The Chelsea 680 Series Power Take-Off, part number 680XHAHX-A5AF or 680XHAHXA5AF, is a medium-to-heavy-duty PTO built for 8-bolt manual transmission apertures. The cast iron housing and tapered cone bearings on both the input and output shafts deliver a high intermittent torque rating characteristic of the 680 Series, making it well suited for demanding applications such as pneumatic blowers, dump trucks, and aerial equipment. The 680 Series supports continuous operation with a 30% de-rating and offers shift options including wire/cable and mechanical. The series covers Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other transmission families, with a deep-mount housing option for Mack applications. Call us to confirm proper fit for your specific transmission and output configuration.
Features
Chelsea 680 Series Power Take-Off, 8-bolt mounting for most manual transmission applications
Cast iron housing with tapered cone bearings on input and output shafts
Designed for higher-torque work including pneumatic blowers, dump trucks, and aerial equipment
Wire/cable and mechanical shift options available within the series
Supports continuous operation with a 30% de-rating
Compatible with Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other transmission manufacturers; deep-mount housing option for Mack applications
Tech Specs
- Mounting Type: 8-Bolt
- Series: Chelsea 680
- Shift Type: Wire/Cable or Mechanical
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and others
- Continuous Operation: Yes, with 30% de-rating
- Output Options (series): SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Shaft Options (series): Round Shaft (1-1/4 in. with 5/16 in. key), SAE A (5/8 in. - 9T), SAE B (7/8 in. - 13T), SAE BB (1 in. - 15T), SAE C (1-1/4 in. - 14T), DIN 5462 Pump Spline, 1410 Companion Flange
- Shaft Power (series): 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Housing: Cast Iron
- NMFC Code: 128520 - Hydraulic PTOs, Pumps, Motors, etc.
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
