The Muncie A20-A1012-SX3X4 or A20A1012SX3X4 is a medium-duty clutch shift power takeoff from Muncie's A20 Series, engineered specifically for Allison 3000 and 4000 Series automatic transmissions. The 10-bolt mounting pattern pairs with a shift cover that rotates 360 degrees, letting you position the control port to suit tight installations. A rotatable pump flange and increased housing clearances simplify initial fitment. Inside, tapered roller bearings and an enlarged output shaft diameter extend service life, while a proven clutch pack design carries a single intermittent and continuous torque rating across three available housing arrangements. The unit is also compatible with the EX Drive shaft extension for added installation flexibility. Call us to confirm the right speed ratio and housing arrangement for your application.
Features
10-bolt clutch shift PTO for Allison 3000 and 4000 Series transmissions
Shift cover allows 360-degree rotation for flexible control-port positioning
Rotatable pump flange simplifies hydraulic circuit layout
Tapered roller bearings and increased output shaft diameter for extended service life
Single intermittent/continuous torque rating; available in three housing arrangements
Compatible with 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) |
