The Chelsea 660XHAHX-A3AK or 660XHAHXA3AK is a 660 Series Power Take-Off designed for most popular 6-bolt manual transmissions, including Eaton/Fuller and Volvo/Mack applications. The 660 Series uses one-piece gears and cast iron bearing caps with tapered cone bearings on both the input and output shafts, providing a higher load-bearing capability than needle-bearing designs. The series carries an intermittent torque rating up to 375 lb-ft 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. Typical applications include dump trucks, aerial devices, blowers, service trucks, and snow and ice removal equipment. Call us to confirm proper fit for your transmission and application.
Features
Chelsea 660 Series, fits most popular 6-bolt manual transmissions
Cast iron housing with tapered cone bearings on input and output shafts
Intermittent torque capacity up to 375 lb-ft (508 Nm) for the series
Supports continuous operation with a 30% de-rating
Shift options include wire/cable and mechanical actuation
Multiple output types: SAE A, SAE B, ISO 7652 pump flange, and driveline
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Intermittent Torque (Series): Up to 375 lb-ft (508 Nm)
- Continuous Operation: Yes, with 30% de-rating
- Output Power (Series): 56+ HP / 51+ kW
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Housing Material: Cast Iron
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, and other 6-bolt manual transmissions
Additional Information
Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
