680ZQDAX-S5XD Chelsea 680 Series PTO

The Chelsea 680ZQDAX-S5XD or 680ZQDAXS5XD is a 680 Series Power Take-Off designed for medium- to heavy-duty manual transmission applications with an 8-bolt PTO aperture. The 680 Series is built around a cast iron housing with tapered cone bearings on the output shaft, giving it a higher torque rating suited to demanding jobs like pneumatic blowers, dump trucks, and refuse equipment. The series supports wire/cable or mechanical shift operation and is compatible with Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other transmissions. A deep-mount housing option covers Mack applications. Call us to confirm proper fit for your specific transmission and output configuration.

Features

Chelsea 680 Series PTO with 8-bolt mounting for most manual transmission applications
Cast iron housing with tapered cone bearings on the output shaft for long service life
Designed for higher-torque applications including pneumatic blowers and refuse equipment
Wire/cable or mechanical shift options available within the series
Compatible with Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other transmission manufacturers
Deep-mount housing option available for Mack transmission applications

Tech Specs

• Mounting Type: 8-Bolt
• Shift Type: Wire/Cable or Mechanical
• Continuous Operation: Yes, with 30% de-rating
• Intermittent Torque: Up to 375 lb-ft (508 Nm) - check application pages for actual torque ratings
• 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 aperture
• Housing: Cast iron with deep-mount option for Mack applications
• Dimensions (H x W x L): 8 in. x 10 in. x 14 in.

Additional Information

The Chelsea 680 Series is an economical, versatile PTO with four internal speed ratios and 32 output options, including a 360-degree rotatable flange for flexible pump fitment. Common applications include aerial equipment, snow and ice removal, fire and rescue, dump trucks, service trucks, refuse, and blower/product pumps. The space-saving air shift cover provides maximum clearance under the truck. Input shaft uses tapered bearings rather than needle bearings for greater load-bearing capability.
Related Parker Chelsea documents for this series include the 680 Series Parts List (HY25-2660-M1_US), the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual, and the Chelsea Power Take-Off General Information Catalog. Call Pro Gear and Transmission to confirm this part fits your specific transmission and output requirements.

Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.