The Chelsea 660XQAHX-A3AF or 660XQAHXA3AF is a 660 Series power take-off built for medium to heavy duty applications on 6-bolt manual transmissions, including Eaton/Fuller, Volvo/Mack, and other popular platforms. The 660 Series carries an intermittent torque rating of up to 375 lb-ft and supports continuous operation with a 30% de-rating. A cast iron housing and tapered cone bearings on the output shaft contribute to a high load-bearing capability. The series offers mechanical or wire/cable shift types, multiple output configurations including SAE A, SAE B, and ISO 7652 pump flanges, and Chelsea's 360-degree rotatable flange option for pump fitment flexibility. Call us to confirm proper fit for your specific transmission and application.
Features
Chelsea 660 Series, 6-bolt manual transmission mounting
Intermittent torque rating up to 375 lb-ft (508 Nm)
Cast iron housing with tapered cone bearings on output and input shafts
Supports continuous operation with 30% de-rating
Shift types include mechanical and wire/cable
Output options include SAE A, SAE B, ISO 7652 pump flanges, and driveline
Tech Specs
- Mounting Type: 6-Bolt
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, and other 6-bolt manual transmissions
- Intermittent Torque: Up to 375 lb-ft (508 Nm)
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Mechanical or Wire/Cable
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- 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.
