The Chelsea 680ZFDAX-V3RK or 680ZFDAXV3RK 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 for demanding, higher-torque work such as pneumatic blowers. The series covers Eaton Fuller transmissions and includes a deep-mount housing option for Mack applications. Output options across the 680 Series include SAE A, SAE B, and ISO 7652 pump flanges plus driveline outputs, and shift types span wire/cable and mechanical. Continuous operation is supported with a 30% de-rating. Call us to confirm proper fit for your transmission and application.
Features
8-bolt mounting for most manual transmission applications with 8-bolt PTO apertures
Cast iron housing with tapered cone bearings on the output shaft for higher-torque applications
Compatible with Eaton Fuller transmissions; deep-mount housing option available for Mack applications
Intermittent torque rating: 301-400 lb-ft (501+ Nm) for the 680 Series - confirm actual rating for this configuration
Shift types include wire/cable and mechanical; continuous operation supported with 30% de-rating
Suited for aerial, dump truck, refuse, blower, fire and rescue, and snow and ice removal applications
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable or Mechanical
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, or Driveline
- Series Intermittent Torque: 301-400 lb-ft (501+ Nm) - check application data for this specific configuration
- Continuous Operation: Yes, with 30% de-rating
- Transmission Fitment: Eaton/Fuller, Volvo/Mack (deep-mount option), Daimler/Detroit, Other
- Output Power: 56+ HP / 51+ kW (series rating)
- Housing Material: Cast Iron
Additional Information
The Chelsea 680 Series is designed for vocational applications that demand a durable, higher-torque PTO, including pneumatic blowers, aerial equipment, dump trucks, refuse trucks, fire and rescue vehicles, and snow and ice removal equipment. The space-saving air shift cover is engineered to maximize clearance under the truck. The PTO input shaft uses tapered bearings rather than needle bearings for greater load-bearing capability. The 360-degree rotatable flange option across the 680 Series provides additional flexibility for pump fitment. Part number 680ZFDAX-V3RK is sold by Pro Gear and Transmission. Not sure this is the right PTO for your application? Give us a call.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
