The Chelsea 680QFMEX-56RF is an 8-bolt Power Take-Off from the Chelsea 680 Series, 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 for long service life and high torque capability. Output options include SAE A, SAE B, and ISO 7652 pump flanges, as well as driveline configurations. The series supports wire/cable or mechanical shift, and is compatible with Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other transmissions. A deep mount housing option covers Mack applications. Pro Gear and Transmission carries this genuine Chelsea part.
Features
8-Bolt mounting for broad manual transmission coverage including Eaton/Fuller and Mack
Cast iron housing with tapered cone bearings on input and output shafts
Multiple output types: SAE A, SAE B, ISO 7652 pump flange, and driveline
Wire/cable or mechanical shift options
Deep mount housing option available for Mack transmission applications
Suited for high-torque vocational applications including pneumatic blowers, aerial, and dump trucks
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable or Mechanical
- Output Types: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, Other
- Continuous Operation: Yes, with 30% de-rating
- Series Intermittent Torque Rating: 301-400 lb-ft (check application pages for actual torque ratings)
- Series Output Power: 56+ HP / 51+ kW
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
