The Muncie A20-A1012-HX3BB or A20A1012HX3BB is a medium-duty clutch shift power take-off from Muncie's A20 Series, designed for Allison 3000 and 4000 Series transmissions. The shift cover rotates 360 degrees for flexible installation, and the rotatable pump flange simplifies hydraulic plumbing. Tapered roller bearings and an increased-diameter output shaft extend service life, while a proven clutch pack design and maximized gear geometry keep noise low. Three housing arrangements and extended-length PTO mounting fasteners give installers real flexibility, and the unit is compatible with the EX Drive shaft extension. Call Pro Gear and Transmission to confirm the correct configuration for your application.
Features
Clutch shift design for Allison 3000 and 4000 Series transmissions
Shift cover allows 360-degree rotation for flexible mounting
Rotatable pump flange for easier hydraulic plumbing
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for added durability
Compatible with EX Drive shaft extension
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Transmission application: Allison 3000 Series and 4000 Series
- Housing arrangements: Three
- Shift cover rotation: 360 degrees
- Drive shaft extension compatibility: 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) |
