The Muncie A20-A1009-SX31X or A20A1009SX31X 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. The shift cover rotates 360 degrees for flexible installation, and a rotatable pump flange accommodates a variety of hydraulic setups. Extended-length PTO mounting fasteners and increased housing clearance simplify installation. Three housing arrangements are available, and the unit is compatible with the EX Drive shaft extension. Call us to confirm the correct configuration for your application.
Features
10-bolt clutch shift PTO for Allison 3000 and 4000 Series transmissions
Tapered roller bearings for extended PTO service life
360-degree rotating shift cover for flexible installation positioning
Rotatable pump flange to suit various hydraulic configurations
Increased output shaft diameter for higher durability
Compatible with EX Drive shaft extension; three housing arrangements available
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Compatible transmissions: Allison 3000 Series, Allison 4000 Series
- Shift cover rotation: 360 degrees
- Housing arrangements: Three available
- EX Drive shaft extension compatible: Yes
- Single intermittent/continuous torque rating applies across all speed ratios
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) |
