The Muncie A20 Series power take-off, part number A20-A1009-HR31XPX or A20A1009HR31XPX, is a medium-duty, clutch shift PTO designed for Allison 3000 and 4000 Series transmissions. The A20 Series is built around a proven clutch pack design with tapered roller bearings to extend service life, and features an enlarged output shaft diameter for added durability at the wheel end. The shift cover rotates a full 360 degrees for flexible mounting, and a rotatable pump flange simplifies hydraulic hookup. Three housing arrangements are available, and the unit accepts the EX Drive shaft extension. Extended-length PTO mounting fasteners and increased installation clearance ease the bolting process. Call us to confirm the right configuration for your application.
Features
Clutch shift engagement for Allison 3000 and 4000 Series transmissions
Proven clutch pack design with tapered roller bearings for extended PTO life
360-degree rotating shift cover and rotatable pump flange for flexible installation
Increased output shaft diameter for higher durability
Compatible with EX Drive shaft extension
Extended-length PTO mounting fasteners with increased installation clearance
Additional Information
| SPEED | 3000 SERIES | 4000 SERIES | INTERMITTENT CONTINUOUS HP (KW) | INTERMITTENT/CONTINOUS |
| RATIO | ENGINE % | ENGINE % | @ 1,000 RPM | TORQUE LBS.FT. (NM) |
| 5 | 74% | 105% | 77 (57) | 400 (542) |
| 6 | 85% | 122% | 77 (57) | 400 (542) |
| 7 | 99% | 141% | 79 (59) | 415 (563) |
| 8 | 114% | 163% | 69 (51) | 360 (488) |
| 9 | 122% | 175% | 65 (48) | 340 (461) |
| 10 | 131% | 187% | 59 (44) | 310 (420) |
| 11 | 151% | 215% | 52 (39) | 275 (373) |
| 12 | 162% | 231% | 50 (37) | 265 (359) |
| 15 | 201% | 287% | 39 (29) | 205 (278) |
