The Muncie A20-A1011-HX31XPX or A20A1011HX31XPX is a medium-duty 10-bolt clutch shift power takeoff designed for Allison 3000 and 4000 series transmissions. It runs a 1.11:1 ratio with electric/hydraulic engagement, left-hand rotation, and a 1-1/4" keyed output shaft. A standard hose kit is included. The shift cover rotates 360 degrees and the pump flange is rotatable, giving installers flexibility in tight bays. Three housing arrangements are available to suit different mounting requirements. Tapered roller bearings and an enlarged output shaft diameter contribute to extended service life. The clutch pack design carries a single intermittent/continuous torque rating, and gear geometry is optimized to keep operating noise low. Compatible with the EX Drive shaft extension. Call us to confirm the right housing arrangement and output configuration for your application.
Features
10-bolt mount for Allison 3000 and 4000 series transmissions
1.11:1 gear ratio, electric/hydraulic clutch shift, left-hand rotation
1-1/4" keyed output shaft with enlarged diameter for added durability
Rotatable pump flange and 360-degree rotating shift cover for flexible installation
Tapered roller bearings and proven clutch pack design rated for single intermittent/continuous torque
Three housing arrangements available; compatible with EX Drive shaft extension
Tech Specs
- Transmission Mount: Allison 3000 and 4000 series, 10-bolt
- Gear Ratio: 1.11:1
- Shift Type: Electric/Hydraulic clutch shift
- Rotation: Left-hand
- Output Shaft: 1-1/4" keyed
- Shift Cover Rotation: 360 degrees
- Housing Arrangements: Three available
- EX Drive Shaft Extension Compatible: 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) |
