The Muncie A20-A1012-HR1BSPX or A20A1012HR1BSPX is a medium-duty, clutch shift power takeoff from the Muncie A20 Series, engineered specifically for Allison 3000 and 4000 Series transmissions via a 10-bolt mounting. The shift cover rotates 360 degrees for flexible installation routing, and the rotatable pump flange simplifies hydraulic hookup. Tapered roller bearings extend service life, while an increased output shaft diameter handles higher driveline loads. The gear set is designed to reduce operating noise, and the unit carries a single torque rating that applies to both intermittent and continuous duty cycles. Three housing arrangements are available, and extended-length PTO mounting fasteners come included. The unit is also compatible with the EX Drive shaft extension. Call us to confirm the correct configuration for your application.
Features
10-bolt clutch shift mounting designed for Allison 3000 and 4000 Series transmissions
Shift cover allows full 360-degree rotation for flexible installation
Rotatable pump flange simplifies hydraulic system connections
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for higher driveline load capacity
Compatible with EX Drive shaft extension; extended-length mounting fasteners included
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Compatible transmissions: Allison 3000 Series, Allison 4000 Series
- Shift cover rotation: 360 degrees
- Bearing type: Tapered roller bearings
- Housing arrangements: Three available
- Torque rating: Single rating covering both intermittent and continuous duty
- EX Drive shaft extension compatibility: 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) |
