The Muncie A20-A1010-SX3XXPX or A20A1010SX3XXPX is a medium-duty, 10-bolt clutch shift power take-off engineered specifically for Allison 3000 and 4000 Series transmissions. The A20 Series carries a single intermittent/continuous torque rating, simplifying spec selection. Available in three housing arrangements, it features a rotatable pump flange and a shift cover with 360-degree rotation to ease installation clearance. Tapered roller bearings extend PTO service life, and the increased-diameter output shaft adds durability under sustained loads. Gear geometry is optimized for noise reduction, and reduced leak paths keep maintenance intervals manageable. The unit is compatible with the EX Drive shaft extension and uses extended-length PTO mounting fasteners. A genuine Muncie part, sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Designed for Allison 3000 and 4000 Series transmissions
10-bolt clutch shift engagement
Shift cover allows 360-degree rotation for flexible installation
Rotatable pump flange with increased clearance
Tapered roller bearings for extended PTO service life
Compatible with EX Drive shaft extension
Additional Information
| SPEED | 3000 SERIES | 4000 SERIES | INTERMITTENT CONTINUOUS HP (KW) | INTERMITTENT/CONTINOUS |
| RATIO | ENGINE % | ENGINE % | 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) |
