The Chelsea 660 Series Power Take-Off, part number 660ZQDAX-A3XK or 660ZQDAXA3XK, is a 6-bolt mounted PTO built for medium to heavy-duty vocational applications including dump trucks, aerial devices, service trucks, and snow removal equipment. Shift type is wire/cable mechanical. The output shaft is a 1-1/4" round with keyway. Intermittent torque capacity for the 660 Series reaches 375 lb-ft (508 Nm); verify actual rating for your specific application on Chelsea's application pages. Shaft power output is rated at 36 HP (27 kW) at 500 RPM, 71 HP (53 kW) at 1,000 RPM, and 107 HP (80 kW) at 1,500 RPM. Compatible transmissions include Eaton/Fuller, Hino, Volvo/Mack, and other 6-bolt applications. Call us to confirm proper fit for your truck and transmission.
The Chelsea 660 Series is suited for aerial, construction, vocational, and municipal equipment where torque demands exceed what smaller PTO series can handle. Supported applications include blower and product pumps, aerial devices, dump trucks and trailers, service trucks, and snow and ice removal equipment. The series supports continuous operation with a 30% de-rating. Four internal speed ratios and multiple shift options make the 660 Series adaptable across a wide range of truck and body configurations.
Features
6-Bolt mounting fits most popular manual transmissions including Eaton/Fuller, Hino, and Volvo/Mack
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque capacity up to 375 lb-ft (508 Nm) for the 660 Series - check application pages for your specific rating
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 extended service life
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
- Output Shaft Type: 1-1/4" Round with Key
- Mounting Type: 6-Bolt
- Shaft Power: 36 HP / 27 kW (500 RPM), 71 HP / 53 kW (1,000 RPM), 107 HP / 80 kW (1,500 RPM)
Additional Information
The Chelsea 660 Series is suited for aerial, construction, vocational, and municipal equipment where torque demands exceed what smaller PTO series can handle. Supported applications include blower and product pumps, aerial devices, dump trucks and trailers, service trucks, and snow and ice removal equipment. The series supports continuous operation with a 30% de-rating. Four internal speed ratios and multiple shift options make the 660 Series adaptable across a wide range of truck and body configurations.
Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
