The Muncie A20-A1010-HR31XPX or A20A1010HR31XPX is a medium-duty, 10-bolt clutch shift power take-off engineered for Allison 3000 and 4000 series transmissions. The A20 series uses a proven clutch pack design with tapered roller bearings for extended service life, and an increased-diameter output shaft for added durability under load. A rotatable pump flange and shift cover with 360-degree rotation simplify installation and mounting flexibility, while three available housing arrangements let you match the PTO to your application. Reduced leak paths and a gear set optimized for noise reduction are built into the design. The unit is also compatible with the EX Drive shaft extension. Call us to confirm proper fit for your specific transmission and truck configuration.
Features
Clutch shift design for Allison 3000 and 4000 series transmissions
Tapered roller bearings for extended PTO service life
Rotatable pump flange and 360-degree rotatable shift cover for flexible installation
Increased output shaft diameter for higher durability
Three housing arrangements available
Compatible with EX Drive shaft extension
Tech Specs
- Series: Muncie A20
- Mount: 10-bolt
- Shift type: Clutch shift
- Compatible transmissions: Allison 3000 series, Allison 4000 series
- Output shaft: Increased diameter (enhanced durability design)
- Pump flange: Rotatable
- Shift cover rotation: 360 degrees
- Housing arrangements: Three
- EX Drive shaft extension compatible: Yes
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) |
