The Chelsea 660XSAHX-H3XD or 660XSAHXH3XD is a 660 Series Power Take-Off designed to fit most popular 6-bolt manual transmissions, including Eaton/Fuller and Volvo/Mack applications. The 660 Series is built around a cast iron housing with tapered cone bearings on both the output and input shafts, giving it a series torque capacity of up to 375 lb-ft for medium to heavy duty vocational work. Shift type options across the series include wire/cable and mechanical, with output configurations spanning SAE A, SAE B, and SAE C pump flanges, driveline, and multiple spline options. Common applications include dump trucks, aerial devices, service trucks, and snow and ice removal equipment. Pro Gear and Transmission carries this genuine Chelsea part. Call us to confirm proper fit for your application.
Parker Chelsea documentation available for this series includes the 660 Series Parts List (HY25-2660-M1_US), the 660 Series Sales Literature, the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual, and the Chelsea PTO General Information Catalog. Contact Pro Gear and Transmission if you need help identifying the correct configuration for your application.
Features
Chelsea 660 Series Power Take-Off, part number 660XSAHX-H3XD or 660XSAHXH3XD
6-bolt mounting fits most popular manual transmissions including Eaton/Fuller and Volvo/Mack
Cast iron housing with tapered cone bearings on input and output shafts
Series intermittent torque capacity up to 375 lb-ft (508 Nm)
Shift options include wire/cable and mechanical
Suited for aerial, dump truck, service truck, and snow and ice removal applications
Tech Specs
- Mounting Type: 6-Bolt
- Compatible Transmissions: Eaton/Fuller, Volvo/Mack, and other popular manual 6-bolt transmissions
- Series Intermittent Torque Capacity: Up to 375 lb-ft (508 Nm)
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable or Mechanical
- Output Types (series): SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Shaft Options (series): Round Shaft 1-1/4" - 5/16" Key; SAE A 5/8" - 9T Pump Spline; SAE B 7/8" - 13T Pump Spline; SAE BB 1" - 15T Pump Spline; SAE C 1-1/4" - 14T Pump Spline; 3/4" - 11T Pump Spline; 1410 Companion Flange
- 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: Tapered Cone (input and output shafts)
- Lubricant: No Pressure Lube (X designation)
- NMFC Code: 128520 (Hydraulic PTOs, Pumps, Motors, etc.)
Additional Information
The Chelsea 660 Series is well suited for vocational applications demanding more torque than the 442 Series provides. The space-saving air shift cover is designed for maximum clearance under the truck. The series offers four internal speed ratios and 26 output configurations, including Chelsea's 360-degree rotatable flange for flexible pump positioning. Applicable markets include construction equipment, aerial, dump and trailer, municipal, and service truck operations.Parker Chelsea documentation available for this series includes the 660 Series Parts List (HY25-2660-M1_US), the 660 Series Sales Literature, the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual, and the Chelsea PTO General Information Catalog. Contact Pro Gear and Transmission if you need help identifying the correct configuration for your application.
Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
