The Muncie A20-A1007-JX3II or A20A1007JX3II is a medium-duty, clutch shift power take-off engineered for Allison 3000 and 4000 Series transmissions. Part of the A20 Series, it uses a proven clutch pack design with tapered roller bearings to extend service life. The shift cover allows 360-degree rotation, and the pump flange is fully rotatable, giving installers flexibility in mounting orientation. Three housing arrangements are available across the series, and the design incorporates an increased output shaft diameter for greater durability along with extended-length PTO mounting fasteners. Leak paths are minimized, and the gear geometry is optimized to reduce operating noise. The unit is also compatible with the EX Drive shaft extension. Call Pro Gear and Transmission to confirm the exact configuration for your application.
Features
10-bolt clutch shift design for Allison 3000 & 4000 Series transmissions
Rotatable pump flange and 360-degree shift cover rotation for flexible mounting
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for higher durability
Extended-length PTO mounting fasteners and increased installation clearance
Compatible with EX Drive shaft extension
Tech Specs
- Transmission Fitment: Allison 3000 Series, Allison 4000 Series
- Shift Type: Clutch Shift
- Mounting: 10-Bolt
- Housing Arrangements: Three available
- Torque Rating: Single intermittent/continuous torque rating
- Shift Cover Rotation: 360 degrees
- Pump Flange: Rotatable
- 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) |
