The Muncie A20-A1007-HH1PB or A20A1007HH1PB 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 rotatable pump flange and a shift cover that allows 360-degree rotation, giving installers meaningful flexibility on tight chassis. Extended-length PTO mounting fasteners and increased clearance around the unit simplify installation. Internally, tapered roller bearings extend service life, and the larger output shaft diameter handles higher drive loads. A proven clutch pack design carries a single intermittent/continuous torque rating, and the maximized gear profile reduces operating noise. Three housing arrangements are offered, and the unit is compatible with the EX Drive shaft extension. Call us to confirm the right ratio and configuration for your application.
Features
10-bolt clutch shift PTO for Allison 3000 and 4000 Series transmissions
Rotatable pump flange with shift cover allowing 360-degree rotation
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for higher drive load capacity
Extended-length PTO mounting fasteners with increased installation clearance
Compatible with EX Drive shaft extension; three housing arrangements available
Tech Specs
- Transmission Mount: Allison 3000 and 4000 Series, 10-bolt
- Shift Type: Clutch Shift
- Shift Cover Rotation: 360 degrees
- Housing Arrangements: Three
- Output Shaft: Increased diameter design
- Bearings: Tapered roller
- Torque Rating: Single intermittent/continuous rating
- EX Drive Compatibility: Compatible with EX Drive shaft extension
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) |
