The Muncie A20-A1006-HX31XPX or A20A1006HX31XPX is a medium-duty, 10-bolt clutch shift power take-off built for Allison 3000 and 4000 Series transmissions. It runs a 0.63:1 gear ratio with electric/hydraulic shift activation, left-hand rotation, and a 1-1/4-inch keyed output shaft. A standard hose kit is included. The shift cover allows 360-degree rotation for flexible mounting, and the rotatable pump flange simplifies installation in tight engine bays. Tapered roller bearings extend service life, and the increased output shaft diameter adds durability under sustained load. The design carries a single intermittent/continuous torque rating and is compatible with the Muncie EX Drive shaft extension. Call us to confirm proper fit for your application.
Features
Fits Allison 3000 and 4000 Series transmissions via 10-bolt mounting
0.63:1 gear ratio with electric/hydraulic clutch shift activation
Left-hand rotation; 1-1/4-inch keyed output shaft
Shift cover with 360-degree rotation and rotatable pump flange for flexible installation
Tapered roller bearings and increased output shaft diameter for extended service life
Compatible with Muncie EX Drive shaft extension; standard hose kit included
Tech Specs
- Gear Ratio: 0.63:1
- Shift Type: Electric/Hydraulic Clutch Shift
- Mounting: 10-Bolt
- Rotation: Left-Hand (LH)
- Output Shaft: 1-1/4 inch Keyed
- Transmission Application: Allison 3000 Series, Allison 4000 Series
- Housing Arrangements: Three
- Torque Rating: Single Intermittent/Continuous Rating
- EX Drive Compatibility: Compatible with Muncie EX Drive Shaft Extension
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) |
