The Muncie A20-A1005-HR51XBX or A20A1005HR51XBX is a medium-duty, clutch shift power take-off designed for Allison 3000 Series and 4000 Series transmissions, mounting via a 10-bolt pattern. The A20 Series uses a proven clutch pack design with tapered roller bearings for extended service life, and an increased output shaft diameter for added durability. The shift cover allows 360-degree rotation for flexible installation, while the rotatable pump flange and extended-length PTO mounting fasteners simplify fitment. Three housing arrangements are available, and the unit is compatible with the EX Drive shaft extension. The gear design is optimized to reduce operating noise. Call us to confirm the correct housing arrangement and ratio for your specific application.
Features
10-bolt clutch shift PTO for Allison 3000 Series and 4000 Series transmissions
Tapered roller bearings for extended PTO service life
360-degree rotatable shift cover and rotatable pump flange for flexible installation
Increased output shaft diameter for higher durability
Compatible with EX Drive shaft extension
Three housing arrangements available; extended-length mounting fasteners included
Additional Information
| SPEED | 3000 SERIES | 4000 SERIES | INTERMITTENT CONTINUOUS HP (KW) | INTERMITTENT/CONTINOUS |
| RATIO | ENGINE % | ENGINE % | HP (KW) @ 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) |
