The Chelsea 660XFAHX-V3XD or 660XFAHXV3XD is a 660 Series Power Take-Off Assembly designed for medium to heavy duty vocational applications. It mounts to 6-bolt manual transmissions compatible with Eaton/Fuller, Hino, Volvo/Mack, and other manufacturers. The wire/cable mechanical shift mechanism is standard on this configuration, and the output shaft is a 1-1/4" round with keyway. Intermittent torque capacity for the 660 Series reaches 375 lb-ft (508 Nm), with shaft power rated at 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. The 660 Series uses cast iron bearing caps and tapered cone bearings on the output shaft along with one-piece gears for durability under load. Typical applications include dump trucks, aerial devices, service trucks, and snow and ice removal equipment. Call us to confirm proper fit for your application.

• Intermittent Torque: 375 lb-ft / 508 Nm (check application pages for actual torque ratings)
• Shift Type: Wire/Cable, Mechanical
• Output Power: 56+ HP / 51+ kW
• Transmission Compatibility: Eaton/Fuller, Hino, Volvo/Mack, Other
• Output Shaft Type: 1-1/4" Round with key
• Mounting Type: 6-Bolt
• 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)
• Dimensions (H x W x L): 8.38" x 10.38" x 14.25"

The Chelsea 660 Series is suited for aerial, construction, vocational, and municipal equipment requiring more torque capacity than the 442 Series. The 660 Series supports continuous operation with a 30% de-rating. Output options across the series include SAE A and SAE B pump flanges, ISO 7652 pump flange, and driveline outputs, with four internal speed ratios and ten shift options available. Parker Chelsea publishes a dedicated 660 Series Parts List (HY25-2660-M1_US) and a 660 Series Sales Literature document, along with the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual, for full application and service reference.