The Chelsea 880GMAHX-A3AF or 880GMAHXA3AF is a heavy-duty 8-bolt Power Take-Off assembly from the Chelsea 880 Series, designed for high-torque, high-cycle applications including bulk haulers, fire trucks, oil field equipment, aerial units, and large recovery trucks. It uses a lever mechanical shift and delivers a 1-1/2"-10 spline output shaft with a 1410 Series companion flange. Shaft power reaches 48 HP at 500 RPM and 95 HP at 1000 RPM, with an intermittent torque rating of 500 lb-ft (678 Nm) - verify your specific application on Chelsea's application pages. The cast iron housing and tapered cone bearings support demanding duty cycles. A genuine Chelsea part, available from Pro Gear and Transmission. Call us to confirm proper fit for your transmission.

The 880 Series is Chelsea's 8-bolt heavy-duty PTO line built for constant-mesh input and high-torque intermittent service. The removable shift cover simplifies backlash adjustment during installation. Tapered cone bearings provide load-bearing capacity suited to oil field, winch, aerial, and fire apparatus duty cycles. Compatible with a wide range of transmissions including Eaton Endurant. The part number 880GMAHX-A3AF is also referenced as SP880GMAHX-A3AF. Continuous operation is supported with a 30% de-rating applied.
Features
8-bolt mounting fits most manual transmissions compatible with the 880 Series aperture
Lever mechanical shift with optional air control shift available
1-1/2"-10 spline output shaft with 1410 Series companion flange
Intermittent torque rated to 500 lb-ft (678 Nm) - confirm rating on Chelsea application pages
Shaft power: 48 HP at 500 RPM, 95 HP at 1000 RPM
Dual-pump output allows mounting a hydraulic pump on each end of the PTO
Tech Specs
- Intermittent Torque: 500 lb-ft / 678 Nm (verify actual rating on Chelsea application pages)
- Transmission Compatibility: Volvo/Mack, Allison, Eaton/Fuller, and other compatible 8-bolt transmissions
- Shift Type: Lever mechanical
- Output Shaft Type: 1-1/2"-10T spline with 1410 Series companion flange
- Mounting Type: 8-bolt
- Shaft Power: 48 HP (500 RPM), 95 HP (1000 RPM) / 36 kW (500 RPM), 71 kW (1000 RPM)
- Output Power: 56+ HP / 51+ kW
Additional Information

The 880 Series is Chelsea's 8-bolt heavy-duty PTO line built for constant-mesh input and high-torque intermittent service. The removable shift cover simplifies backlash adjustment during installation. Tapered cone bearings provide load-bearing capacity suited to oil field, winch, aerial, and fire apparatus duty cycles. Compatible with a wide range of transmissions including Eaton Endurant. The part number 880GMAHX-A3AF is also referenced as SP880GMAHX-A3AF. Continuous operation is supported with a 30% de-rating applied.