The Chelsea 660 Series Power Take-Off, part number 660GQAHX-A3XY or 660GQAHXA3XY, is a 6-bolt PTO assembly built for medium- to heavy-duty vocational applications. The 660 Series carries an intermittent torque rating up to 375 lb-ft (508 Nm) - verify the exact rating for your application on the Chelsea application pages. Wire/cable mechanical shift. Output is a 1-1/4" round shaft with keyway. Compatible transmissions include Eaton/Fuller, Volvo/Mack, Hino, and other 6-bolt manual transmission platforms. Shaft power output reaches 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. The cast iron housing and tapered cone bearings on the output shaft contribute to long service life in demanding cycles. Call us to confirm proper fit for your transmission.
The Chelsea 660 Series is suited for aerial devices, dump trucks, service trucks, snow and ice removal equipment, and blower and product pump applications. Continuous operation is supported with a 30% de-rating applied. The 660 Series offers four internal speed ratios and ten shift options across the product family, with 26 output configurations including Chelsea's 360-degree rotatable flange for flexible pump positioning. Applicable Parker Chelsea reference documents include the 660 Series Parts List (HY25-2660-M1_US) and the 660 Series Sales Literature, available through Parker Chelsea.
Features
6-bolt mounting for compatibility with Eaton/Fuller, Volvo/Mack, Hino, and other popular manual transmissions
Wire/cable mechanical shift operation
1-1/4" round output shaft with keyway
Intermittent torque capacity up to 375 lb-ft (508 Nm) - check application pages for your specific configuration
Shaft power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
One-piece gears, cast iron bearing caps, and greaseable shaft options for durability in demanding vocational cycles
Tech Specs
- Intermittent Torque: 301-400 lb-ft range; 375 lb-ft / 508 Nm (check application pages for actual rating for your configuration)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP / 51+ kW
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Hino, and other 6-bolt manual transmissions
- Output Shaft Type: 1-1/4" Round with key
- Mounting Type: 6-Bolt
- Shaft Power: 36 HP (500 RPM), 71 HP (1,000 RPM), 107 HP (1,500 RPM) / 27 kW (500 RPM), 53 kW (1,000 RPM), 80 kW (1,500 RPM)
Additional Information
The Chelsea 660 Series is suited for aerial devices, dump trucks, service trucks, snow and ice removal equipment, and blower and product pump applications. Continuous operation is supported with a 30% de-rating applied. The 660 Series offers four internal speed ratios and ten shift options across the product family, with 26 output configurations including Chelsea's 360-degree rotatable flange for flexible pump positioning. Applicable Parker Chelsea reference documents include the 660 Series Parts List (HY25-2660-M1_US) and the 660 Series Sales Literature, available through Parker Chelsea.
