The Muncie A20-A1011-HX1X4PX or A20A1011HX1X4PX is a medium-duty, 10-bolt clutch shift power take-off designed for Allison 3000 and 4000 Series transmissions. The A20 Series mounts with extended-length fasteners and accepts three housing arrangements, giving installers flexibility on a range of truck configurations. A 360-degree rotating shift cover and rotatable pump flange simplify installation and 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 set is optimized to reduce operating noise. The unit is also compatible with the Muncie EX Drive shaft extension. Call us to confirm proper fit for your application.
Features
10-bolt clutch shift design for Allison 3000 and 4000 Series transmissions
Rotatable pump flange and 360-degree rotating shift cover for flexible installation
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for added durability
Three available housing arrangements
Compatible with Muncie 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) |
