The Chelsea 660 Series Power Take-Off Assembly, part number 660XQAHX-V3GK or 660XQAHXV3GK, is a 6-bolt mounted PTO designed for medium- to heavy-duty vocational applications. It uses a wire/cable mechanical shift and delivers an intermittent torque capacity up to 375 lb-ft (508 Nm). The 1-1/4" round output shaft with keyway transfers power to hydraulic pumps or driveline accessories on trucks spec'd with Eaton/Fuller, Volvo/Mack, Hino, or other compatible transmissions. Shaft power output is rated at 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. Cast iron bearing caps and one-piece gears contribute to the 660 Series' load-bearing capability in demanding cycles. Call us to confirm proper fit for your transmission and application.
The Chelsea 660 Series is suited for aerial devices, dump trucks, service trucks, snow and ice removal equipment, and blower and product pump applications. Four internal speed ratios and ten shift options are available across the 660 Series family, with 26 output configurations including Chelsea's 360-degree rotatable flange. The stronger tapered bearings on the input shaft, compared to needle-bearing designs, increase load-bearing capability in high-demand cycles. Greaseable shaft options support field maintenance. Refer to Chelsea application pages to confirm the torque rating and gear ratio for this specific configuration.
Features
6-bolt mounting, compatible with Eaton/Fuller, Volvo/Mack, Hino, and other manual transmissions
Wire/cable mechanical shift operation
Intermittent torque capacity up to 375 lb-ft (508 Nm); continuous operation available with 30% de-rating
1-1/4" round output shaft with keyway
Shaft power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
One-piece gears and cast iron bearing caps for sustained load-bearing capability
Tech Specs
- Intermittent Torque: 375 lb-ft (508 Nm) - Check Application Pages for Actual Torque Ratings
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable, Mechanical
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Hino, Other
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 36 HP / 27 kW at 500 RPM; 71 HP / 53 kW at 1,000 RPM; 107 HP / 80 kW at 1,500 RPM
- Dimensions (H x W x L): 8.38" x 10.38" x 14.25"
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. Four internal speed ratios and ten shift options are available across the 660 Series family, with 26 output configurations including Chelsea's 360-degree rotatable flange. The stronger tapered bearings on the input shaft, compared to needle-bearing designs, increase load-bearing capability in high-demand cycles. Greaseable shaft options support field maintenance. Refer to Chelsea application pages to confirm the torque rating and gear ratio for this specific configuration.
