The Muncie A20-A1008-SX3CBPW or A20A1008SX3CBPW is a medium-duty, 10-bolt clutch shift power take-off from the A20 Series, designed for Allison 3000 and 4000 Series transmissions. The shift cover allows 360-degree rotation, and the rotatable pump flange simplifies plumbing orientation during installation. Tapered roller bearings extend service life, and the increased output shaft diameter adds durability under sustained load. A proven clutch pack design carries a single intermittent/continuous torque rating across three available housing arrangements. The unit is compatible with the EX Drive shaft extension and uses extended-length PTO mounting fasteners. Call Pro Gear and Transmission to confirm the correct housing arrangement and ratio 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; pump flange is fully rotatable
Tapered roller bearings for extended PTO service life
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
- Application: Allison 3000 Series and 4000 Series transmissions
- Housing arrangements: Three
- Shift cover rotation: 360 degrees
- Torque rating: Single intermittent/continuous rating
- 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) |
