The Chelsea 880 Series Power Take-Off Assembly, part number 880XQAHX-A5AF or 880XQAHXA5AF, is an 8-bolt, lever mechanical shift PTO rated for up to 500 lb-ft intermittent torque (678 Nm). The output shaft is a 1-1/2"-10T spline with a 1410 companion flange, suited to high-torque driveline applications. Shaft power measures 48 HP at 500 RPM and 95 HP at 1,000 RPM. Compatible with Volvo/Mack, Allison, and Eaton/Fuller transmissions, among others. The 880 Series targets bulk haulers, fire trucks, oil field equipment, large recovery trucks, and aerial applications. A cast iron housing and tapered cone bearings handle sustained heavy-duty loads. The removable shift cover simplifies backlash adjustment during installation. Call us to confirm proper fit for your transmission application.

The Chelsea 880 Series is engineered for high and low speed, high-torque applications using constant mesh input gears. Tapered cone bearings provide strong load-bearing performance under continuous and intermittent demand. Continuous operation is supported with a 30% de-rating applied. Common application markets include oil and gas, aerial work platforms, mining, fire apparatus, and on-highway heavy recovery vehicles. Output flange options across the 880 Series include SAE B, SAE C, and ISO 7652 pump flanges in addition to driveline configurations.
Features
8-bolt mounting for compatibility with most manual transmissions including Volvo/Mack, Allison, and Eaton/Fuller
Lever mechanical shift; optional air control shift available within the 880 Series
1-1/2"-10T spline output with 1410 companion flange for driveline connections
Intermittent torque rating: up to 500 lb-ft (678 Nm) - verify actual rating on application pages
Shaft power: 48 HP at 500 RPM, 95 HP at 1,000 RPM
Dual-pump output allows mounting a hydraulic pump on each end of the PTO
Removable shift cover for straightforward backlash adjustment during installation
Tech Specs
- INTERMITTENT TORQUE: 500 lb-ft / 678 Nm (Check Application Pages for Actual Torque Ratings)
- SHIFT TYPE: Lever Mechanical
- MOUNTING TYPE: 8-Bolt
- TRANSMISSION COMPATIBILITY: Volvo/Mack, Allison, Eaton/Fuller, Other
- OUTPUT SHAFT TYPE: 1-1/2" - 10T Spline with 1410 Companion Flange
- OUTPUT POWER: 56+ HP / 51+ kW
- SHAFT POWER: 48 HP at 500 RPM, 95 HP at 1,000 RPM (36 kW at 500 RPM, 71 kW at 1,000 RPM)
Additional Information

The Chelsea 880 Series is engineered for high and low speed, high-torque applications using constant mesh input gears. Tapered cone bearings provide strong load-bearing performance under continuous and intermittent demand. Continuous operation is supported with a 30% de-rating applied. Common application markets include oil and gas, aerial work platforms, mining, fire apparatus, and on-highway heavy recovery vehicles. Output flange options across the 880 Series include SAE B, SAE C, and ISO 7652 pump flanges in addition to driveline configurations.