The Muncie A20-A1007-HX5IIBX or A20A1007HX5IIBX is a medium-duty, 10-bolt clutch shift power takeoff designed specifically for Allison 3000 and 4000 series transmissions. The A20 series uses a proven clutch pack design and tapered roller bearings to extend PTO service life, while an increased output shaft diameter adds durability under sustained loads. The shift cover allows 360-degree rotation, giving installers flexibility to position the air shift connection where it works best. A rotatable pump flange and increased housing clearance simplify installation, and extended-length PTO mounting fasteners are included. The unit carries a single intermittent/continuous torque rating and is available in three housing arrangements. It is also compatible with the EX Drive shaft extension. Available from Pro Gear and Transmission - call us to confirm proper fit for your application.
Features
Designed for Allison 3000 and 4000 series transmissions
Clutch shift engagement with proven clutch pack design
Shift cover allows 360-degree rotation for flexible installation
Tapered roller bearings for extended PTO service life
Rotatable pump flange and increased clearance for easier installation
Compatible with EX Drive shaft extension
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Transmission compatibility: Allison 3000 series, Allison 4000 series
- Housing arrangements: Three
- 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) |
