The Chelsea 880 Series Power Take-Off Assembly, part number 880GRAHX-H3XV or 880GRAHXH3XV, 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, and the unit delivers 48 HP at 500 RPM and 95 HP at 1000 RPM. Compatible with Volvo/Mack, Allison, and Eaton/Fuller transmissions among others, this 880 Series unit features a cast iron housing and a removable shift cover for straightforward backlash adjustment. The dual-pump output design allows a hydraulic pump to be mounted on each end. Typical applications include fire trucks, bulk haulers, oil field equipment, winch systems, and large recovery trucks. Call us to confirm proper fit for your specific transmission.
The Chelsea 880 Series is designed for high-torque, heavy-duty applications across oil and gas, aerial, mining, and on-highway markets. The 880 Series supports continuous operation with a 30% de-rating and features constant mesh input gears suited for both high and low speed use. Tapered cone bearings provide excellent load-bearing capability under demanding conditions. Common applications include bulk haulers, fire trucks, oil field equipment, aerial platforms, winch systems, and large truck recovery.
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 on the 880 Series
1-1/2"-10T spline output shaft with 1410 companion flange
Up to 500 lb-ft intermittent torque (678 Nm); 95 HP at 1000 RPM
Dual-pump output allows a hydraulic pump on each end of the PTO
Removable shift cover for simplified, accurate backlash adjustment
Tech Specs
- INTERMITTENT TORQUE: 500 lb-ft / 678 Nm (Check Application Pages for Actual Torque Ratings)
- SHIFT TYPE: Lever Mechanical
- MOUNTING TYPE: 8-Bolt
- 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 1000 RPM (36 kW at 500 RPM; 71 kW at 1000 RPM)
- TRANSMISSION MANUFACTURER: Volvo/Mack, Allison, Eaton/Fuller, Other
Additional Information
The Chelsea 880 Series is designed for high-torque, heavy-duty applications across oil and gas, aerial, mining, and on-highway markets. The 880 Series supports continuous operation with a 30% de-rating and features constant mesh input gears suited for both high and low speed use. Tapered cone bearings provide excellent load-bearing capability under demanding conditions. Common applications include bulk haulers, fire trucks, oil field equipment, aerial platforms, winch systems, and large truck recovery.
Parts Manual: Chelsea 880 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
