The Chelsea 660 Series Power Take-Off, part number 660XQAHX-W3XD or 660XQAHXW3XD, is a 6-bolt PTO assembly engineered for medium to heavy duty vocational applications including dump trucks, aerial devices, service trucks, and snow removal equipment. It uses wire/cable mechanical shifting and delivers up to 375 lb-ft intermittent torque (508 Nm), with shaft power rated at 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. The 1-1/4" round output shaft with keyway suits a wide range of hydraulic pump configurations. Compatible transmissions include Eaton/Fuller, Volvo/Mack, Hino, and other 6-bolt applications. One-piece gears, cast iron bearing caps, and tapered cone bearings on the output shaft contribute to long service life under demanding load cycles. Continuous operation is supported with a 30% de-rating. Call us to confirm proper fit for your transmission and pump configuration.
Features
6-bolt mounting fits most popular manual transmissions including Eaton/Fuller, Volvo/Mack, and Hino
Wire/cable mechanical shift type
Intermittent torque capacity up to 375 lb-ft (508 Nm); continuous operation supported with 30% de-rating
1-1/4" round output shaft with keyway
One-piece gears for higher torque capacity
Cast iron bearing caps with greaseable shaft options
Tech Specs
- 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 Manufacturer: Eaton/Fuller, Hino, Volvo/Mack, Other 6-Bolt
- Output Shaft Type: 1-1/4" Round; 1-1/4" Round with Key
- Mounting Type: 6-Bolt
- Shaft Power: 36 HP / 27 kW (500 RPM), 71 HP / 53 kW (1000 RPM), 107 HP / 80 kW (1500 RPM)
- Continuous Operation: Yes, with 30% de-rating
- Dimensions (H x W x L): 8.38" x 10.38" x 14.25"
Additional Information
