The Chelsea 680XHAHX-A3AZ or 680XHAHXA3AZ is a 680 Series power take-off built for medium to heavy-duty manual transmission applications with an 8-bolt PTO aperture. The 680 Series uses a cast iron housing with tapered cone bearings on the output shaft, designed to handle higher torque demands such as pneumatic blowers. A deep mount housing option covers Mack transmission applications, and the air shift cover is designed to conserve clearance under the truck. The 680 Series supports up to 375 lb-ft intermittent torque and continuous operation with a 30% de-rating applied. Compatible transmission manufacturers include Eaton/Fuller, Volvo/Mack, and Daimler/Detroit. Available from Pro Gear and Transmission. Call us to confirm proper fit for your specific transmission and application.
Features
8-bolt mounting for common medium to heavy-duty manual transmission apertures
Cast iron housing with tapered cone bearings on the output shaft for higher torque loads
680 Series intermittent torque rating up to 375 lb-ft (508 Nm)
Deep mount housing option for Mack transmission applications
Space-saving air shift cover for maximum clearance under the truck
Suited for demanding applications including pneumatic blowers, aerial, dump truck, refuse, and fire and rescue
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable or Mechanical
- Intermittent Torque: Up to 375 lb-ft (508 Nm) - check application pages for actual torque rating
- Continuous Operation: Yes, with 30% de-rating
- Output Power: 56+ HP (42+ kW)
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Compatible Transmission Manufacturers: Eaton/Fuller, Volvo/Mack, Daimler/Detroit
- Output Types Available (series): SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 680 Series is covered in Parker's 680 Series Owner's Manual (HY25-2660-M1_US) and the Chelsea Power Take-Off General Information Catalog. Applications for this series include aerial equipment, snow and ice removal, fire and rescue, dump trucks and trailers, service trucks, refuse vehicles, and blower and product pump installations. If you are not certain this is the correct unit for your truck or transmission, give us a call before ordering.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
