The Muncie A20-A1007-HX3CB or A20A1007HX3CB is a medium-duty clutch shift power take-off from the Muncie A20 Series, designed specifically for Allison 3000 and 4000 Series transmissions. The 10-bolt mounting pattern pairs with a rotatable pump flange and a shift cover that allows 360-degree rotation, giving installers flexibility in tight engine compartments. Tapered roller bearings extend service life, and the increased output shaft diameter is built for higher torque loads. Gear geometry is optimized for noise reduction, leak paths are minimized at the housing, and the unit accepts the Muncie EX Drive shaft extension. Three housing arrangements are available within the series, and extended-length PTO mounting fasteners are included. Call Pro Gear and Transmission to confirm the correct configuration for your application.
Features
10-bolt clutch shift PTO 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 torque capacity
Maximized gear design minimizes operating noise
Compatible with Muncie EX Drive shaft extension
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Application: Allison 3000 Series and Allison 4000 Series transmissions
- Housing arrangements: Three available
- Pump flange: Rotatable
- Shift cover rotation: 360 degrees
- Output shaft: Increased diameter (higher durability)
- 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) |
