The Muncie A20-A1011-SX3X4PX or A20A1011SX3X4PX is a medium-duty, 10-bolt clutch shift power take-off engineered for Allison 3000 and 4000 Series transmissions. The A20 Series features a shift cover with 360-degree rotation, a rotatable pump flange, and extended-length PTO mounting fasteners for added installation clearance. Tapered roller bearings extend PTO service life, and the increased-diameter output shaft handles greater drivetrain loads. A maximized gear design reduces operating noise, and reduced leak paths cut maintenance intervals. The unit carries a single intermittent/continuous torque rating, is available in three housing arrangements, and is compatible with the EX Drive shaft extension. Call us to confirm the right arrangement for your transmission and application.
Features
10-bolt clutch shift PTO designed for Allison 3000 and 4000 Series transmissions
Shift cover allows 360-degree rotation for flexible installation positioning
Rotatable pump flange and extended-length mounting fasteners for easier installation
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for greater durability under load
Compatible with the EX Drive shaft extension; available in three housing arrangements
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Transmission compatibility: Allison 3000 Series and 4000 Series
- Torque rating: Single intermittent/continuous rating
- Housing arrangements: Three
- EX Drive shaft extension: Compatible
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) |
