The Muncie A20-A1006-HR5CBPW or A20A1006HR5CBPW is a medium-duty, 10-bolt clutch shift power take-off engineered specifically for Allison 3000 and 4000 series transmissions. The A20 Series uses a proven clutch pack design paired with tapered roller bearings to extend PTO service life, and the increased-diameter output shaft adds durability under sustained load. A rotatable pump flange and a shift cover with 360-degree rotation give technicians flexibility during installation, while the increased clearance around the housing makes fitment noticeably easier. Three housing arrangements are available within the series, and the unit is compatible with the EX Drive shaft extension. Extended-length PTO mounting fasteners and reduced leak paths round out a design focused on long-term serviceability. Call us to confirm the correct configuration for your chassis and transmission.
Features
Clutch shift engagement, 10-bolt mount, designed 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 durability under load
Proven clutch pack design with single intermittent/continuous torque rating
Compatible with EX Drive shaft extension; three housing arrangements available
Tech Specs
- Brand: Muncie
- Series: A20
- Part Number: A20-A1006-HR5CBPW or A20A1006HR5CBPW
- Type: Medium-Duty Clutch Shift Power Take-Off
- Mount: 10-Bolt
- Application: Allison 3000 Series and 4000 Series Transmissions
- Shift Type: Clutch Shift
- Housing Arrangements: Three
- Pump Flange: Rotatable
- Shift Cover Rotation: 360 degrees
- EX Drive Shaft Extension Compatible: Yes
Additional Information
| SPEED | 3000 SERIES | 4000 SERIES | INTERMITTENT CONTINUOUS HP (KW) | INTERMITTENT/CONTINOUS |
| RATIO | ENGINE % | ENGINE % | HP (KW) @ 1,000 RPM | TORQUE LBS.FT. (NM) |
| 5 | 74% | 105% | 77 (57) | 400 (542) |
| 6 | 85% | 122% | 400 (542) | 77 (57) |
| 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) |
