The Muncie A20-A1006-HX31X or A20A1006HX31X is a medium-duty, 10-bolt clutch shift power take-off engineered for Allison 3000 and 4000 Series transmissions. The A20 Series mounts via a 10-bolt transmission interface and uses a proven clutch pack design activated through a shift cover that rotates 360 degrees, giving installers flexibility in routing shift linkage or air lines. Tapered roller bearings extend service life, and an increased-diameter output shaft adds durability under sustained hydraulic load. The rotatable pump flange and increased housing clearance simplify installation, while extended-length PTO mounting fasteners and reduced leak paths keep the installation clean. Three housing arrangements are available, and the unit is compatible with the Muncie EX Drive shaft extension. Call us to confirm the correct configuration for your application.
Features
10-bolt clutch shift mounting for Allison 3000 and 4000 Series transmissions
Shift cover with 360-degree rotation for flexible installation routing
Rotatable pump flange simplifies hydraulic plumbing orientation
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for higher durability under load
Compatible with Muncie EX Drive shaft extension
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) |
