The Muncie A20-A1011-HX3IIPX (also referenced as A20A1011HX3IIPX) is a medium-duty, clutch shift power take-off designed for Allison 3000 and 4000 Series transmissions, mounting via a 10-bolt interface. The A20 Series uses a proven clutch pack design with tapered roller bearings to extend PTO service life, and features an increased-diameter output shaft for added durability. A rotatable pump flange and a shift cover with 360-degree rotation simplify installation and hydraulic plumbing. Three housing arrangements are available, and the unit is compatible with the EX Drive shaft extension. Maximized gear geometry reduces operating noise, and reduced leak paths help keep the installation clean. Call us to confirm proper fit for your specific Allison application.
Features
10-bolt clutch shift design for Allison 3000 and 4000 Series transmissions
Rotatable pump flange with 360-degree shift cover rotation for flexible installation
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for higher durability
Three housing arrangements available; compatible with EX Drive shaft extension
Reduced leak paths and maximized gear design for quieter, cleaner operation
Tech Specs
- Shift Type: Clutch Shift
- Mount Interface: 10-Bolt
- Compatible Transmissions: Allison 3000 Series, Allison 4000 Series
- Housing Arrangements: Three available
- Pump Flange: Rotatable
- Shift Cover Rotation: 360 degrees
- Drive Shaft Extension: Compatible with EX Drive shaft extension
- Torque Rating: Single intermittent/continuous rating (see ratings table below)
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) |
