The Muncie A20 Series 10-bolt clutch shift power take-off, part number A20-A1012-H23BBPX or A20A1012H23BBPX, is a medium-duty PTO engineered specifically for Allison 3000 Series and 4000 Series automatic transmissions. The shift cover rotates a full 360 degrees, and the pump flange is also rotatable, giving installers flexibility in tight engine compartments. Extended-length PTO mounting fasteners and increased component clearances further simplify installation. Tapered roller bearings and an increased-diameter output shaft are built in to extend service life, while a maximized gear design keeps operating noise down. The unit carries a single intermittent/continuous torque rating, is available in three housing arrangements, and is compatible with the Muncie EX Drive shaft extension. Call us to confirm the right configuration for your application.
Features
Clutch shift design for Allison 3000 Series and 4000 Series automatic transmissions
10-bolt mounting, three housing arrangements available
Shift cover with 360-degree rotation and rotatable pump flange for flexible installation
Extended-length PTO mounting fasteners with increased clearance for easier fitment
Tapered roller bearings and increased output shaft diameter for extended service life
Compatible with Muncie EX Drive shaft extension
Tech Specs
- Shift type: Clutch shift
- Transmission mount: 10-bolt
- Compatible transmissions: Allison 3000 Series, Allison 4000 Series
- Housing arrangements: Three
- Shift cover rotation: 360 degrees
- Output shaft: Increased diameter (enhanced durability)
- Torque rating type: Single intermittent/continuous rating
- 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) |
