The Muncie A20-A1006-SX11XPX or A20A1006SX11XPX is a medium-duty, 10-bolt clutch shift power take-off engineered specifically for Allison 3000 Series and 4000 Series transmissions. The A20 Series design centers on a rotatable pump flange and a shift cover with 360-degree rotation, giving installers flexible mounting positions and extra clearance during installation. Tapered roller bearings extend service life, and an increased-diameter output shaft adds durability under sustained load. The gear geometry is optimized to reduce operating noise. A single intermittent/continuous torque rating simplifies spec selection, and three housing arrangements let you match the unit to your application. Extended-length PTO mounting fasteners and compatibility with the EX Drive shaft extension round out the fit options. Call us to confirm the correct housing arrangement and output configuration for your vehicle.
Features
Designed for Allison 3000 Series and 4000 Series transmissions
Clutch shift engagement with proven clutch pack design
Shift cover allows 360-degree rotation for flexible installation
Rotatable pump flange with increased clearance for easier mounting
Tapered roller bearings for extended PTO service life
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) |
