The Muncie A20-A1011-XX1PBPX or A20A1011XX1PBPX is a medium-duty, clutch-shift power take-off designed for Allison 3000 and 4000 Series transmissions. It mounts via a 10-bolt pattern and features a shift cover that rotates 360 degrees, a rotatable pump flange, and three available housing arrangements, giving installers real flexibility on tight chassis. Tapered roller bearings extend service life, and an increased-diameter output shaft raises load capacity. The proven clutch pack carries a single intermittent/continuous torque rating across the speed range, and the gear set is optimized to reduce operating noise. Extended-length PTO mounting fasteners and improved clearances simplify installation. The unit is also compatible with the EX Drive shaft extension. Call us to confirm the right ratio and configuration for your specific application.
Features
10-bolt clutch shift PTO designed for Allison 3000 and 4000 Series transmissions
Shift cover allows full 360-degree rotation for flexible installation
Rotatable pump flange and three housing arrangements adapt to varied chassis layouts
Tapered roller bearings and increased output shaft diameter extend unit life
Proven clutch pack design with a single intermittent/continuous torque rating across available speed ratios
Compatible with Muncie EX Drive shaft extension
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Transmission compatibility: Allison 3000 Series and 4000 Series
- Shift cover rotation: 360 degrees
- Bearings: Tapered roller
- Housing arrangements: Three available
- EX Drive shaft extension: Compatible
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) |
