The Chelsea 680ZQDAX-A3XY is an 8-bolt Power Take-Off from the 680 Series, engineered for medium- to heavy-duty manual transmission applications. The 680 Series features a cast iron housing with tapered cone bearings on the output shaft, designed to handle higher-torque demands such as pneumatic blowers. Output options span SAE A and SAE B pump flanges, ISO 7652 pump flange, and driveline configurations. Shift types include wire/cable and mechanical. The series carries an intermittent torque rating of 375 lb-ft (508 Nm), with continuous operation supported at a 30% de-rating. Compatible transmission manufacturers include Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and others with 8-bolt PTO apertures. Available from Pro Gear and Transmission.
Features
8-bolt mounting configuration fits most manual transmissions with 8-bolt PTO apertures
Cast iron housing with tapered cone bearings on the output shaft for extended service life
Intermittent torque rating: 375 lb-ft (508 Nm); continuous operation with 30% de-rating
Output options include SAE A pump flange, SAE B pump flange, ISO 7652 pump flange, and driveline
Wire/cable and mechanical shift types available
Compatible with Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other transmissions featuring 8-bolt apertures
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Intermittent Torque: 375 lb-ft (508 Nm)
- 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, and others with 8-bolt apertures
- Housing Material: Cast Iron
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
