The Chelsea 680 Series Power Take-Off, part number 680XQAHX-H3XD or 680XQAHXH3XD, is an 8-bolt mount PTO built for medium to heavy-duty manual transmission applications. The 680 Series features a cast iron housing with tapered cone bearings on the output shaft, supporting an intermittent torque rating up to 375 lb-ft (508 Nm). The series is compatible with Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other transmission families, including a deep-mount housing option for Mack applications. Output options span SAE A, SAE B, and ISO pump flanges as well as driveline configurations. Continuous operation is supported with a 30% de-rating. Common applications include pneumatic blowers, dump trucks, refuse, fire and rescue, and aerial equipment. Call us to confirm proper fit for your application.
Features
8-bolt mounting for broad manual transmission coverage including Eaton/Fuller and Volvo/Mack
Cast iron housing with tapered cone bearings on input and output shafts for high load capacity
Intermittent torque rating up to 375 lb-ft (508 Nm); continuous operation with 30% de-rating
Deep-mount housing option available for Mack transmission applications
Multiple output configurations: SAE A, SAE B, ISO 7652 pump flanges, and driveline
Suited for high-torque vocational uses including pneumatic blowers, dump trucks, refuse, and aerial equipment
Tech Specs
- Mounting Type: 8-Bolt
- Series: Chelsea 680
- Intermittent Torque: Up to 375 lb-ft (508 Nm) - check application pages for actual rating
- Continuous Operation: Yes, with 30% de-rating
- Output Types: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Shift Type: Wire/Cable or Mechanical
- Compatible Transmissions: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, Other
- Housing Material: Cast Iron
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
