The Muncie A20-A1008-HX3BS or A20A1008HX3BS is a medium-duty clutch shift power take-off from the Muncie A20 Series, designed for Allison 3000 and 4000 Series transmissions. The 10-bolt mounting pattern pairs with a shift cover that allows 360-degree rotation, so the unit can be clocked to fit a wide range of installation angles. A rotatable pump flange and increased installation clearance simplify mounting. Tapered roller bearings extend service life, and an enlarged output shaft diameter improves durability under load. The proven clutch pack carries a single intermittent/continuous torque rating across three available housing arrangements. The unit is also compatible with the EX Drive shaft extension. Call us to confirm proper fit for your application.
Features
Designed for Allison 3000 and 4000 Series transmissions
10-bolt clutch shift engagement with proven clutch pack design
Shift cover with 360-degree rotation for flexible installation clocking
Rotatable pump flange and increased clearance for easier mounting
Tapered roller bearings and enlarged output shaft diameter for extended 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) |
