The Chelsea 660XFAHX-H3XD or 660XFAHXH3XD is a 660 Series Power Take-Off assembly built for medium- and heavy-duty vocational applications including dump trucks, aerial devices, and service trucks. The 660 Series mounts to 6-bolt manual transmissions from Eaton/Fuller, Volvo/Mack, Hino, and other compatible manufacturers. Shift is accomplished via wire/cable mechanical actuation. The output shaft is a 1-1/4" round configuration with keyway, and output power for the series reaches 56+ HP with shaft power rated at 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. Intermittent torque capacity for the 660 Series reaches up to 375 lb-ft (508 Nm) - confirm the exact rating for your application on the Chelsea application pages. Call us to confirm proper fit for your transmission and installation.

• Mounting Type: 6-Bolt
• Shift Type: Wire/Cable, Mechanical
• Output Shaft Type: 1-1/4" Round with Key
• Intermittent Torque (Series): Up to 375 lb-ft / 508 Nm (check application pages for actual torque ratings)
• Output Power: 56+ HP / 51+ kW
• Shaft Power: 36 HP (500 RPM), 71 HP (1000 RPM), 107 HP (1500 RPM) / 27 kW (500 RPM), 53 kW (1000 RPM), 80 kW (1500 RPM)
• Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Hino, and other 6-bolt manual transmissions
• Continuous Operation: Yes, with 30% de-rating

The Chelsea 660 Series is suited for aerial, construction, and municipal vocational applications including blower and product pumps, aerial devices, dump trucks, snow and ice removal equipment, and service trucks. The 660 Series features tapered cone bearings on the output shaft and tapered bearings on the input shaft for strong load-bearing capability. Twenty-six output options and four internal speed ratios make this a versatile series. Parker Chelsea documents available for this series include the 660 Series Parts List (HY25-2660-M1_US) and the 660 Series Sales Literature.