The Chelsea 272GCHVP-B5XD is a 272 Series PowerShift power take-off (PTO) configured for compatible Allison transmissions. This build combines a 12V electric-over-hydraulic integral shift system, pressure lubrication, a 25/47 gear ratio, and a 1-1/4" round keyed output shaft for demanding vocational-truck auxiliary drive applications.
The 272 Series is designed for high-torque hot-shift operation where reliable PTO engagement is required without a conventional manual shift mechanism. This configuration uses Chelsea's metric stud mounting and assembly arrangement 5, with the PTO positioned left-side bulge down / right-side bulge up depending on the transmission opening used.
With a continuous and intermittent torque rating of 300 ft-lb, the Chelsea 272 is well suited for hydraulic pumps, driveline-driven equipment, water truck systems, dump bodies, utility equipment, and other vocational applications when the transmission and PTO opening match the specified configuration.
Key Features
| Feature |
Details |
| PowerShift / Hot Shift |
12V electric-over-hydraulic integral PTO engagement |
| Allison Transmission Input |
Configured for compatible Allison transmission applications |
| Pressure Lubricated |
Provides active lubrication to support PTO durability under demanding service |
| 1-1/4" Keyed Output |
Round standard shaft with 5/16" keyway for driveline or auxiliary equipment connection |
| Metric Stud Mounting |
Chelsea 272 Series mounting configuration with metric stud kit |
| Arrangement 5 |
Left side bulge down / right side bulge up orientation |
Specifications
| Attribute |
Details |
| Brand |
Chelsea / Parker |
| Manufacturer Part Number |
272GCHVP-B5XD |
| Series |
272 Series |
| PTO Type |
PowerShift / Hot Shift |
| Transmission Input |
Allison |
| Mounting Option |
Metric stud kit |
| Gear Ratio |
25/47 |
| Approximate Speed Ratio |
0.53:1 |
| Shift Type |
12V electric/hydraulic, integral |
| Lubrication |
Pressure lube |
| Assembly Arrangement |
5 - left side bulge down / right side bulge up |
| Output Shaft |
1-1/4" round standard keyed shaft |
| Keyway |
5/16" |
| Continuous Torque Rating |
300 ft-lb |
| Continuous / Intermittent HP @ 500 RPM |
29 HP |
| Continuous / Intermittent HP @ 1,000 RPM |
57 HP |
| Approximate PTO Weight |
49 lb |
Applications
| Application |
Use Case |
| Water Trucks |
PTO drive for compatible hydraulic or mechanical water-truck equipment |
| Hydraulic Pump Drives |
Provides auxiliary power for compatible hydraulic pump systems |
| Vocational Trucks |
Suitable for auxiliary equipment on properly matched Allison transmission installations |
| Dump & Utility Equipment |
Hot-shift PTO operation for compatible hydraulic and driveline-driven accessories |
