The Chelsea 880 Series Power Take-Off Assembly, part number 880XJAHX-H3AF or 880XJAHXH3AF, is an 8-bolt heavy-duty PTO designed for high-torque, high and low speed applications on manual transmissions from Eaton/Fuller, Volvo/Mack, and Allison, among others. It uses a lever mechanical shift and delivers intermittent torque rated at 500 lb-ft (678 Nm) - check application pages for your specific torque rating. The output shaft is a 1-1/2"-10T spline with a 1410 companion flange. Shaft power measures 48 HP at 500 RPM and 95 HP at 1000 RPM. Typical applications include bulk haulers, fire trucks, oil field equipment, aerial units, winch systems, and large recovery trucks. Call us to confirm proper fit for your transmission.

The Chelsea 880 Series is suited for demanding on-highway and off-highway work including bulk hauling, fire apparatus, oil field equipment, aerial applications, winch systems, and large truck recovery. Constant mesh input gears support both high and low speed operation. Tapered cone bearings provide load-bearing capability across the torque range. The series supports continuous operation with a 30% de-rating applied. Available output flange and spline options within the 880 Series family include SAE B, SAE BB, SAE C pump splines, DIN 5462 pump spline, and the 1410 companion flange - this specific unit, 880XJAHX-H3AF, is configured with the 1-1/2"-10T spline and 1410 flange output.
Features
8-Bolt mounting for compatibility with most manual transmissions including Eaton/Fuller, Volvo/Mack, and Allison
Lever mechanical shift as standard; optional air control shift available for the 880 Series
1-1/2"-10T spline output with 1410 companion flange; dual-pump output allows mounting a pump on each end
Intermittent torque rating of 500 lb-ft (678 Nm) - verify actual rating on application pages
Shaft power: 48 HP at 500 RPM, 95 HP at 1000 RPM
Removable shift cover enables simpler, more accurate backlash adjustment during installation
Tech Specs
- Intermittent Torque: 500 lb-ft / 678 Nm (check application pages for actual torque rating)
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Allison, and other manufacturers
- Shift Type: Lever Mechanical
- Output Shaft Type: 1-1/2" - 10T Spline with 1410 Companion Flange
- Mounting Type: 8-Bolt
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 48 HP at 500 RPM; 95 HP at 1000 RPM (36 kW at 500 RPM; 71 kW at 1000 RPM)
- Housing Material: Cast Iron
Additional Information

The Chelsea 880 Series is suited for demanding on-highway and off-highway work including bulk hauling, fire apparatus, oil field equipment, aerial applications, winch systems, and large truck recovery. Constant mesh input gears support both high and low speed operation. Tapered cone bearings provide load-bearing capability across the torque range. The series supports continuous operation with a 30% de-rating applied. Available output flange and spline options within the 880 Series family include SAE B, SAE BB, SAE C pump splines, DIN 5462 pump spline, and the 1410 companion flange - this specific unit, 880XJAHX-H3AF, is configured with the 1-1/2"-10T spline and 1410 flange output.
Parts Manual: Chelsea 880 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
