The Chelsea 823GMAHX-V3GS or 823GMAHXV3GS is a heavy-duty 823 Series Power Take-Off assembly built for high-torque applications including oil field, logging, and pumper/cleaner trucks. It mounts via an 8-bolt pattern and fits automatic and manual transmissions from Eaton/Fuller, Volvo/Mack, Allison, and other manufacturers. Shift is lever/mechanical. The output shaft is a 1-1/2" 10-tooth spline with a 1410 series companion flange. Intermittent torque rating reaches 500 lb-ft (678 Nm); check application pages for actual torque ratings for your specific setup. Shaft power is rated at 48 HP (36 kW) at 500 RPM and 95 HP (71 kW) at 1000 RPM, with output power exceeding 56 HP (51 kW). Continuous operation is supported with a 30% de-rating. A genuine Chelsea part, sold by Pro Gear and Transmission. Call us to confirm proper fit for your transmission.
The Chelsea 823 Series features a cast iron housing with tapered cone bearings on the output shaft for greater load-bearing capability. The series offers seven internal speed ratios and four shift options, making it adaptable across a wide range of high-torque mobile, oil and gas, and forestry equipment applications. Direct mount pump outputs are available, and the 823 Series comes standard with a 1410 Series companion flange.
Features
8-Bolt mounting pattern fits automatic and manual transmissions from Eaton/Fuller, Volvo/Mack, Allison, and other manufacturers
Lever/mechanical shift type
Intermittent torque: 500 lb-ft (678 Nm) - check application pages for actual ratings
Output shaft: 1-1/2" 10-tooth spline with 1410 series companion flange
Shaft power: 48 HP at 500 RPM, 95 HP at 1000 RPM
Suited for oil field, logging, pumper/cleaner truck, and mining applications
Tech Specs
- Intermittent Torque: 500 lb-ft / 678 Nm (check application pages for actual torque ratings for your application)
- Shift Type: Lever, Mechanical
- Mounting Type: 8-Bolt
- Output Shaft Type: 1-1/2" 10-tooth spline with 1410 Series Companion Flange
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 48 HP (36 kW) at 500 RPM; 95 HP (71 kW) at 1000 RPM
- Continuous Operation: Yes, with 30% de-rating
- Compatible Transmission Manufacturers: Eaton/Fuller, Volvo/Mack, Allison, Other
- Mounting Aperture: 8-Bolt PTO
Additional Information
The Chelsea 823 Series features a cast iron housing with tapered cone bearings on the output shaft for greater load-bearing capability. The series offers seven internal speed ratios and four shift options, making it adaptable across a wide range of high-torque mobile, oil and gas, and forestry equipment applications. Direct mount pump outputs are available, and the 823 Series comes standard with a 1410 Series companion flange.
Parts Manual: Chelsea 823 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
