The Muncie A20 Series power take-off, part number A20-A1006-SX1X4PX or A20A1006SX1X4PX, is a medium-duty clutch shift PTO engineered for Allison 3000 and 4000 Series transmissions. The 10-bolt mounting pattern pairs with a shift cover that rotates 360 degrees, allowing flexible installation orientation. A rotatable pump flange and increased housing clearance simplify mounting. Tapered roller bearings and an enlarged output shaft diameter contribute to extended service life, while the maximized gear design keeps noise levels down. The unit supports a single intermittent/continuous torque rating and is available in three housing arrangements. Compatible with the EX Drive shaft extension. Call us to confirm proper fit for your application.
Features
10-bolt clutch shift mounting for Allison 3000 and 4000 Series transmissions
Shift cover with 360-degree rotation for flexible installation orientation
Rotatable pump flange with increased housing clearance for easier installation
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for higher 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 % | INTERMITTENT/CONTINUOUS HP (KW) @ 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) |
