The Muncie A20-A1007-HX3BB or A20A1007HX3BB is a medium-duty clutch shift power takeoff from the Muncie A20 Series, engineered specifically for Allison 3000 and 4000 Series transmissions via a 10-bolt mounting interface. The shift cover rotates a full 360 degrees for flexible installation, and the rotatable pump flange adapts to multiple plumbing orientations. Tapered roller bearings extend service life, and the enlarged output shaft diameter adds durability under load. Reduced leak paths and a maximized gear profile keep operation quiet. Three housing arrangements and compatibility with the EX Drive shaft extension give this unit broad installation flexibility across vocational truck applications. Call us to confirm proper fit for your specific transmission and chassis configuration.
Features
10-bolt clutch shift PTO for Allison 3000 and 4000 Series transmissions
Shift cover with full 360-degree rotation for flexible installation
Rotatable pump flange accommodates multiple plumbing orientations
Tapered roller bearings for extended PTO service life
Enlarged output shaft diameter for added durability under load
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) |
