The Chelsea 680XFAHX-A3GJ or 680XFAHXA3GJ is an 8-bolt power take-off from the Chelsea 680 Series, built for medium- to heavy-duty manual transmission applications. The 680 Series is a common fit for Eaton Fuller transmissions, with a deep-mount housing option for Mack applications. A cast iron housing and tapered cone bearings on the output shaft give the series its high torque capability, making it well suited to demanding work like pneumatic blowers, dump trucks, and refuse equipment. The series supports continuous operation with a 30% de-rating and carries intermittent torque ratings of 301 to 400 lb-ft. Call us to confirm proper fit for your specific transmission and application.
Features
8-Bolt mounting for most manual transmission applications with 8-bolt PTO apertures
Cast iron housing with tapered cone bearings on the output shaft for high torque capability
Designed for higher-torque applications including pneumatic blowers, dump trucks, and refuse equipment
Deep-mount housing option available for Mack transmission applications
Supports continuous operation with a 30% de-rating
Compatible with Eaton Fuller, Volvo/Mack, and Daimler/Detroit transmission families
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable or Mechanical
- Intermittent Torque Rating: 301 to 400 lb-ft (series rating; check application pages for actual torque)
- Continuous Operation: Yes, with 30% de-rating
- 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
- Housing Material: Cast iron
- Output Shaft Bearing: Tapered cone bearings
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 680 Series supports a wide range of output configurations, including SAE A pump flange, SAE B pump flange, ISO 7652 pump flange, and driveline outputs. Output shaft options across the series include a 1-1/4" round shaft with 5/16" key, SAE A 5/8"-9T pump spline, SAE B 7/8"-13T pump spline, SAE BB 1"-15T pump spline, SAE C 1-1/4"-14T pump spline, DIN 5462 pump spline, and a 1410 companion flange. Chelsea's 360-degree rotatable flange option is available across the series for flexible pump fitment. Common vocational applications include aerial equipment, snow and ice removal, fire and rescue, dump trucks, service trucks, refuse, and blower and product pumps.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
