The Muncie A20-A1006-SX3BBPX or A20A1006SX3BBPX is a medium-duty, 10-bolt clutch shift power take-off engineered for Allison 3000 and 4000 Series transmissions. The A20 Series design centers on a proven clutch pack with tapered roller bearings for extended service life and an increased-diameter output shaft for added durability. A rotatable pump flange and shift cover with 360-degree rotation simplify installation and adapter positioning. Reduced leak paths and noise-optimized gear geometry address two of the most common field complaints on older PTO designs. Three housing arrangements are available within the series, and the unit accepts an EX Drive shaft extension. Extended-length PTO mounting fasteners are included. Call us to confirm the right configuration for your application.
Features
10-bolt clutch shift PTO for Allison 3000 & 4000 Series transmissions
Rotatable pump flange with 360-degree shift cover rotation for flexible installation
Tapered roller bearings for increased PTO service life
Increased output shaft diameter for higher durability
Reduced leak paths and noise-optimized gear design
Compatible with EX Drive shaft extension; extended-length mounting fasteners included
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Transmission application: Allison 3000 Series and 4000 Series
- Housing arrangements: Three
- Pump flange: Rotatable
- Shift cover rotation: 360 degrees
- Bearings: Tapered roller
- EX Drive shaft extension: Compatible
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) |
