The Chelsea 680GSAHX-P3AF or 680GSAHXP3AF is an 8-bolt power take-off from the Chelsea 680 Series, designed for medium to heavy-duty manual transmission applications including Eaton Fuller and Mack transmissions. The 680 Series features a cast iron housing with tapered cone bearings on the output shaft, delivering an intermittent torque rating of up to 375 lb-ft (508 Nm), check application pages for the actual rating confirmed for your unit. The series supports continuous operation with a 30% de-rating. Shift type for this series is wire/cable or mechanical, with the space-saving air shift cover designed to maximize clearance under the cab. Typical applications include aerial work, dump trucks, pneumatic blowers, refuse trucks, and fire and rescue equipment. Call us to confirm proper fit for your transmission and output configuration.
Features
Chelsea 680 Series, 8-bolt mounting for most manual transmission applications
Cast iron housing with tapered cone bearings on the output shaft
Intermittent torque rating up to 375 lb-ft (508 Nm), verify actual rating for your application
Continuous operation supported with 30% de-rating applied
Deep mount housing option available for Mack transmission applications
Suited for demanding vocational uses: aerial, blowers, dump, refuse, fire and rescue
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable or Mechanical
- Intermittent Torque: Up to 375 lb-ft (508 Nm), check application pages for confirmed rating
- Continuous Operation: Yes, with 30% de-rating
- Output Power: 56+ HP (42+ kW)
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Housing Material: Cast Iron
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other 8-bolt aperture manual transmissions
- Output Options: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Part Number: 680GSAHX-P3AF or 680GSAHXP3AF
Additional Information
The Chelsea 680 Series is documented in the 680 Series Parts List (HY25-2660-M1_US) and the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual. Additional application-specific torque ratings and output configurations are detailed in the Chelsea Power Take-Off General Information Catalog and PTO-PNI-250 (New 660/680 Series Ratio and Output Options). Confirm your specific transmission model and desired output type before ordering, the 680 Series spans 32 output options and four internal speed ratios. Not sure this is the right PTO for your rig? 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.
