The Chelsea 660XHAHX-A3AZ or 660XHAHXA3AZ is a 660 Series Power Take-Off designed for medium to heavy-duty applications on most popular 6-bolt manual transmissions from Eaton/Fuller, Volvo/Mack, and other manufacturers. The 660 Series carries an intermittent torque rating up to 375 lb-ft (508 Nm), backed by a cast iron housing and tapered cone bearings on both the output and input shafts for strong load-bearing capability. 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. Continuous operation is supported with a 30% de-rating. Call us to confirm proper fit and output configuration for your specific application.
Applicable Parker Chelsea reference documents: 660 Series Parts List (HY25-2660-M1_US), 660 Series Sales Literature, Chelsea PTO General Information Catalog, and the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual.
Features
Chelsea 660 Series, 6-bolt mounting for most popular manual transmissions
Intermittent torque rating up to 375 lb-ft (508 Nm)
Cast iron housing with tapered cone bearings on input and output shafts
Shift options: wire/cable or mechanical actuation
Output options include SAE A, SAE B, ISO 7652 pump flanges, and driveline
Continuous operation capable with 30% de-rating applied
Tech Specs
- Mounting Type: 6-Bolt
- Transmission Compatibility: Most popular 6-bolt manual transmissions (Eaton/Fuller, Volvo/Mack, and others)
- Intermittent Torque: Up to 375 lb-ft (508 Nm)
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable or Mechanical
- 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: Cast Iron
- Bearings: Tapered cone bearings on input and output shafts
Additional Information
The Chelsea 660 Series is suited for aerial devices, dump trucks, service trucks, snow and ice removal equipment, and blower or product pump installations. The space-saving air shift cover design maximizes clearance under the truck. Chelsea offers 26 output options for this series, including a 360-degree rotatable flange for flexible pump positioning, four internal speed ratios, and ten shift options.Applicable Parker Chelsea reference documents: 660 Series Parts List (HY25-2660-M1_US), 660 Series Sales Literature, Chelsea PTO General Information Catalog, and the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual.
Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
