The Chelsea 880GMAHX-P3AF or 880GMAHXP3AF is an 8-bolt, lever mechanical shift power take-off assembly from the 880 Series, built for heavy-duty applications including bulk haulers, fire trucks, oil field equipment, aerial units, and large truck recovery. The output shaft is a 1-1/2" 10-tooth spline paired with a 1410 companion flange. Intermittent torque is rated at 500 lb-ft (678 Nm); check Chelsea application pages to confirm the actual rating for your specific installation. Shaft power output is 48 HP at 500 RPM and 95 HP at 1000 RPM. This PTO fits transmissions from Volvo/Mack, Allison, and Eaton/Fuller, among others. A genuine Chelsea part available from Pro Gear and Transmission. Call us to confirm fit for your specific transmission.
The Chelsea 880 Series is designed for high-torque, high- and low-speed applications using constant mesh input gears. Tapered cone bearings provide strong load-bearing capacity. Typical applications include bulk haulers, winch systems, fire trucks, oil field equipment, aerial units, and large-truck recovery. The 880 Series supports continuous operation with a 30% torque de-rating applied. Lubricant options within the series include pressure lube (P) and non-pressure lube (X) configurations, as encoded in the part number. Output flange options within the series include SAE B, SAE C, and ISO 7652 pump flanges in addition to the driveline flange on this unit. Refer to the Chelsea 880 Series Parts List (HY25-2880-M1_US) and the Chelsea Service Manual (HY25-6880-M1/US) for complete rebuild and application data.
Features
8-bolt mounting type compatible with most manual transmissions, including Volvo/Mack, Allison, and Eaton/Fuller
Lever mechanical shift with optional air control shift available
1-1/2" - 10-tooth spline output shaft with 1410 series companion flange
Intermittent torque capacity up to 500 lb-ft (678 Nm); verify actual rating on Chelsea application pages
Shaft power output: 48 HP at 500 RPM, 95 HP at 1000 RPM
Dual-pump output allows mounting a hydraulic pump on each end of the PTO
Removable shift cover for straightforward backlash adjustment
Rugged cast iron housing construction
Tech Specs
- INTERMITTENT TORQUE: 500 lb-ft / 678 Nm (Check Chelsea application pages for actual torque rating for your application)
- TRANSMISSION COMPATIBILITY: Volvo/Mack, Allison, Eaton/Fuller, and other 8-bolt aperture transmissions
- SHIFT TYPE: Lever Mechanical
- OUTPUT SHAFT TYPE: 1-1/2" - 10-tooth spline with 1410 series companion flange
- MOUNTING TYPE: 8-Bolt
- OUTPUT POWER: 56+ HP / 51+ kW
- SHAFT POWER: 48 HP (500 RPM), 95 HP (1000 RPM) / 36 kW (500 RPM), 71 kW (1000 RPM)
Additional Information
The Chelsea 880 Series is designed for high-torque, high- and low-speed applications using constant mesh input gears. Tapered cone bearings provide strong load-bearing capacity. Typical applications include bulk haulers, winch systems, fire trucks, oil field equipment, aerial units, and large-truck recovery. The 880 Series supports continuous operation with a 30% torque de-rating applied. Lubricant options within the series include pressure lube (P) and non-pressure lube (X) configurations, as encoded in the part number. Output flange options within the series include SAE B, SAE C, and ISO 7652 pump flanges in addition to the driveline flange on this unit. Refer to the Chelsea 880 Series Parts List (HY25-2880-M1_US) and the Chelsea Service Manual (HY25-6880-M1/US) for complete rebuild and application data.
Parts Manual: Chelsea 880 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
