The Chelsea 680XRAHX-A3GZ or 680XRAHXA3GZ is an 8-bolt power take-off from the Chelsea 680 Series, a medium- to heavy-duty PTO designed for Eaton/Fuller, Mack, Volvo, Daimler/Detroit, and other manual transmissions with an 8-bolt PTO aperture. The 680 Series carries an intermittent torque rating of up to 375 lb-ft (508 Nm) and supports continuous operation with a 30% de-rating. The cast iron housing and tapered cone bearings on the output shaft deliver long service life in high-torque applications such as pneumatic blowers, dump trucks, aerial equipment, and refuse vehicles. Shift type for this series includes wire/cable and mechanical options. Call us to confirm the correct output and shift configuration for your specific transmission.
Features
8-bolt mounting for broad transmission coverage including Eaton/Fuller and Mack applications
Cast iron housing with tapered cone bearings on both the input and output shafts for high load capacity
Intermittent torque rating up to 375 lb-ft (508 Nm); continuous operation supported with 30% de-rating
Output power capability of 56+ HP (51+ kW)
Series supports multiple output types: SAE A, SAE B, and ISO pump flanges, plus driveline output
Deep mount housing option available within the 680 Series for Mack transmission applications
Tech Specs
- Mounting Type: 8-Bolt
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, Other manual transmissions
- Intermittent Torque: Up to 375 lb-ft (508 Nm) - check application pages for actual rating
- 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
- Shift Type: Wire/Cable or Mechanical
- Output Types: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Housing Material: Cast Iron
- Lubrication: No Pressure Lube (X designation)
Additional Information
The Chelsea 680 Series is suited for vocational applications including aerial work, snow and ice removal, fire and rescue, dump trucks, service trucks, refuse vehicles, and blower or product pump systems. The series offers four internal speed ratios and ten shift options, with 32 output configurations including a 360-degree rotatable flange for flexible pump fitment. Applicable Parker Chelsea reference documents include the 680 Series Owner's Manual, the 680 Series Parts List (HY25-2660-M1_US), and the Chelsea PTO General Information Catalog. Not sure this is the right PTO for your application? Give us a call and we will help confirm the fit.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
