The Chelsea 823XMAHX-M4GS is an 823 Series Power Take-Off built for high-torque applications including oil field equipment, logging, pumper cleaner trucks, and mining operations. It mounts via an 8-bolt PTO aperture and fits automatic and manual transmissions from Allison, Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other manufacturers. The 823 Series uses a mechanical lever shift and delivers output through an SAE C pump flange or driveline connection, with the 1410 Series companion flange as standard. The cast iron housing features tapered cone bearings on the output shaft for heavy load capacity. Pro Gear and Transmission carries this genuine Chelsea part for demanding vocational applications.
Features
8-Bolt mounting aperture, fits automatic and manual transmissions
Mechanical lever shift (air shift also available in the 823 Series)
SAE C pump flange and driveline output options
Cast iron housing with tapered cone bearings on the output shaft
Seven internal speed ratios available within the 823 Series
Suited for oil field, logging, pumper cleaner, and mining equipment
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Mechanical Lever
- Output Type: SAE C Pump Flange, Driveline
- Output Shaft Type: SAE C (1-1/4" - 14T) Pump Spline; 1410 Series Companion Flange standard
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 48 HP at 500 RPM; 95 HP at 1000 RPM
- Intermittent Torque: 401-500 lb-ft range (check application pages for actual torque ratings)
- Continuous Operation: Yes, with 30% de-rating
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Volvo/Mack, Daimler/Detroit, Other
Additional Information
Parts Manual: Chelsea 823 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
