The Muncie A20-A1011-HX3BS or A20A1011HX3BS is a medium-duty clutch shift power take-off from the Muncie A20 Series, engineered specifically for Allison 3000 and 4000 Series transmissions via a 10-bolt mount. The shift cover rotates 360 degrees for flexible installation, and the rotatable pump flange simplifies hydraulic plumbing. Tapered roller bearings extend service life, and an enlarged output shaft diameter adds durability under load. The clutch pack carries a single intermittent/continuous torque rating across the speed range, and the gear geometry is optimized to reduce operating noise. Three housing arrangements accommodate different installation requirements, and extended-length PTO mounting fasteners are included. The unit is also compatible with the EX Drive shaft extension. 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 installation
Rotatable pump flange simplifies hydraulic hookup
Tapered roller bearings for extended PTO service life
Enlarged output shaft diameter for added durability
Compatible with EX Drive shaft extension; three housing arrangements available
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) |
