The Chelsea 660XSAHX-A3AF or 660XSAHXA3AF is a 660 Series Power Take-Off designed for medium to heavy-duty applications on popular 6-bolt manual transmissions. The 660 Series features a cast iron housing with tapered cone bearings on the output shaft and tapered bearings on the input shaft, giving this unit a torque capacity up to 375 lb-ft intermittent. Continuous operation is supported with a 30% de-rating. The 660 Series offers output power of 56+ HP and is compatible with Eaton/Fuller, Volvo/Mack, and other transmission manufacturers. Call us to confirm proper fit for your application.
Features
Chelsea 660 Series, 6-bolt mounting for most popular manual transmissions
Cast iron housing with cast iron bearing caps for long service life
Tapered cone bearings on both input and output shafts
Intermittent torque capacity up to 375 lb-ft (508 Nm)
Continuous operation capable with 30% de-rating
Compatible with Eaton/Fuller, Volvo/Mack, and other transmission manufacturers
Tech Specs
- Mounting Type: 6-Bolt
- Series: Chelsea 660
- Intermittent Torque Capacity: 375 lb-ft (508 Nm)
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable or Mechanical
- Housing Material: Cast Iron
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, and other 6-bolt manual transmissions
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 660 Series is suited for vocational and municipal equipment, aerial devices, dump trucks, service trucks, snow and ice removal, and blower and product pump applications. The series offers twenty-six output options including a 360-degree rotatable flange for optimal pump fitment, four internal speed ratios, and ten shift options. Output shaft options across the 660 Series include SAE A, SAE B, SAE BB, and SAE C pump splines, a 1-1/4 in. round shaft, DIN 5462 pump spline, and a 1410 companion flange. Part number 660XSAHX-A3AF is also referenced as SP660XSAHX-A3AF. Parker Chelsea publishes the 660 Series Parts List (HY25-2660-M1_US) and a dedicated Sales Literature sheet for this series.Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
