The Muncie A20-A1007-HR31XPX or A20A1007HR31XPX is a medium-duty, 10-bolt clutch shift power takeoff engineered for Allison 3000 and 4000 Series transmissions. The shift cover rotates a full 360 degrees, and the pump flange is rotatable as well, giving installers flexibility in tight engine compartments. A proven clutch pack design handles both intermittent and continuous duty under a single torque rating, while tapered roller bearings extend PTO service life. The output shaft diameter is enlarged for durability, leak paths are minimized by design, and gear geometry is optimized to reduce noise. Three housing arrangements are available, and the unit accepts the EX Drive shaft extension. Call us to confirm the correct housing arrangement and rotation for your application.
Features
Designed for Allison 3000 and 4000 Series transmissions
Clutch shift engagement with 10-bolt mounting
Shift cover allows 360-degree rotation for installation flexibility
Rotatable pump flange for simplified plumbing layout
Tapered roller bearings for extended PTO service life
Compatible with EX Drive shaft extension
Three housing arrangements available
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Compatible transmissions: Allison 3000 Series, Allison 4000 Series
- Shift cover rotation: 360 degrees
- Torque rating: Single intermittent/continuous rating
- Housing arrangements: Three
- EX Drive shaft extension: Compatible
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% | 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) |
