The Chelsea 660XRAHX-A3GF or 660XRAHXA3GF is a 6-bolt power take-off assembly from the Chelsea 660 Series, built for medium- to heavy-duty vocational applications including dump trucks, aerial devices, service trucks, and snow removal equipment. It delivers up to 375 lb-ft intermittent torque (508 Nm) and shifts via wire/cable mechanical actuation. The 1-1/4" round output shaft with keyway transfers drive power rated at 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. The cast iron housing and tapered cone bearings on the output shaft contribute to the 660 Series' long service life. Compatible transmissions include Eaton/Fuller, Volvo/Mack, Hino, and other 6-bolt applications. Call us to confirm proper fit for your transmission and application.
The 660 Series offers four internal speed ratios and up to twenty-six output configurations, including Chelsea's 360-degree rotatable flange for optimal pump fitment. Applications include blower and product pumps, aerial devices, dump trucks, service trucks, and snow and ice removal equipment. Markets served include aerial, construction, vocational, and municipal equipment.
Features
6-Bolt mounting fits most popular manual transmissions including Eaton/Fuller, Volvo/Mack, and Hino
Intermittent torque rating up to 375 lb-ft (508 Nm) - check application pages for actual torque ratings
Wire/cable mechanical shift actuation
1-1/4" round output shaft with keyway
Shaft power output: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
One-piece gears, cast iron bearing caps, and 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 Compatibility: Eaton/Fuller, Volvo/Mack, Hino, Other 6-bolt
- 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)
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The 660 Series offers four internal speed ratios and up to twenty-six output configurations, including Chelsea's 360-degree rotatable flange for optimal pump fitment. Applications include blower and product pumps, aerial devices, dump trucks, service trucks, and snow and ice removal equipment. Markets served include aerial, construction, vocational, and municipal equipment.
Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
