The Chelsea 660ZFDAX-W3AZ or 660ZFDAXW3AZ is a 660 Series Power Take-Off designed for medium to heavy-duty applications on most popular 6-bolt manual transmissions, including Eaton/Fuller and Volvo/Mack units. The 660 Series features a cast iron housing with tapered cone bearings on the output shaft, and tapered bearings on the input shaft in place of needle bearings for greater load-bearing capability. The series carries an intermittent torque rating up to 375 lb-ft (508 Nm) and supports continuous operation with a 30% de-rating. Shift options include wire/cable and mechanical actuation. Output configurations span SAE A, SAE B, and ISO 7652 pump flanges as well as driveline outputs. Call us to confirm proper fit and output configuration for your application.
Features
6-bolt mounting fits most popular manual transmissions including Eaton/Fuller and Volvo/Mack
Cast iron housing with tapered cone bearings on output shaft and tapered bearings on input shaft
Intermittent torque rating up to 375 lb-ft (508 Nm); continuous operation supported with 30% de-rating
Output options include SAE A, SAE B, and ISO 7652 pump flanges and driveline configurations
Wire/cable and mechanical shift types available in the 660 Series
Space-saving air shift cover design for maximum clearance under the truck
Tech Specs
- Mounting Type: 6-Bolt
- Transmission Compatibility: Most popular 6-bolt manual transmissions (Eaton/Fuller, Volvo/Mack)
- Intermittent Torque: Up to 375 lb-ft (508 Nm) - check application pages for actual torque ratings
- Continuous Operation: Yes, with 30% de-rating
- Output Types: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP (42+ kW)
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Housing Material: Cast Iron
Additional Information
Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
