The Chelsea 660GQAHX-A3AF or 660GQAHXA3AF is a 660 Series Power Take-Off built for medium to heavy duty applications on most popular 6-bolt manual transmissions, including Eaton/Fuller and Volvo/Mack units. The 660 Series carries a series torque capacity up to 375 lb-ft intermittent, supported by a cast iron housing with tapered cone bearings on the output shaft and tapered bearings on the input shaft for greater load capacity than needle-bearing designs. Shift type options within the series include wire/cable and mechanical. Output power within the series reaches 56+ HP. Call us to confirm proper fitment for your specific transmission and application.
Features
Chelsea 660 Series Power Take-Off, part number 660GQAHX-A3AF or 660GQAHXA3AF
6-bolt mounting fits most popular manual transmissions including Eaton/Fuller and Volvo/Mack
Series intermittent torque capacity up to 375 lb-ft (508 Nm)
Cast iron housing with tapered cone bearings on the output shaft for long service life
Tagged input shaft uses tapered bearings rather than needle bearings for greater load-bearing capability
Supports continuous operation with 30% de-rating; shift types include wire/cable and mechanical
Tech Specs
- Mounting Type: 6-Bolt
- Transmission Compatibility: Most popular 6-bolt manual transmissions (Eaton/Fuller, Volvo/Mack, and others)
- Series Intermittent Torque Capacity: 375 lb-ft (508 Nm)
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable or Mechanical
- Output Power (series): 56+ HP / 51+ kW
- Shaft Power (series): 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Housing Material: Cast iron
- Bearing Type - Output Shaft: Tapered cone bearings
- Bearing Type - Input Shaft: Tapered bearings
Additional Information
The Chelsea 660 Series is suited for aerial devices, dump trucks, service trucks, snow and ice removal equipment, and blower and product pump applications. The series offers twenty-six output options, including a 360-degree rotatable flange for pump positioning flexibility, four internal speed ratios, and ten shift options. Parker Chelsea documents available for this series include the 660 Series Parts List (HY25-2660-M1_US) and the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual. Pro Gear and Transmission carries genuine Chelsea PTO units - call us to confirm this part number is the right fit for your truck and transmission.Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
