The Muncie A20-A1010-XX11XPX or A20A1010XX11XPX is a medium-duty, 10-bolt clutch shift power take-off engineered specifically for Allison 3000 and 4000 Series transmissions. The A20 Series uses a proven clutch pack design with tapered roller bearings to extend PTO service life, and an increased-diameter output shaft for added durability. A rotatable pump flange and shift cover with full 360-degree rotation simplify pump mounting and orientation at installation. Reduced leak paths and a maximized gear profile keep noise low in service. Three housing arrangements and compatibility with the EX Drive shaft extension add flexibility across truck configurations. Extended-length PTO mounting fasteners are included. Call us to confirm the right speed ratio and housing arrangement for your specific application.
Features
10-bolt clutch shift design for Allison 3000 and 4000 Series transmissions
Rotatable pump flange and 360-degree shift cover rotation for flexible installation
Tapered roller bearings extend PTO service life
Increased output shaft diameter for greater 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 % | @ 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) |
