The Muncie A20-A1012-SR31XPX or A20A1012SR31XPX is a medium-duty, 10-bolt clutch shift power take-off engineered for Allison 3000 and 4000 Series transmissions. The shift cover rotates a full 360 degrees, and the pump flange is also rotatable, giving installers flexibility in tight mounting situations. Increased component clearances simplify the installation process. Tapered roller bearings support the output shaft to extend service life, and an increased-diameter output shaft adds durability under load. The proven clutch pack design carries a single intermittent/continuous torque rating across the applicable speed range. Three housing arrangements accommodate different application requirements. The unit is compatible with the EX Drive shaft extension system. Call us to confirm proper fit for your specific transmission and application.
Features
Designed for Allison 3000 and 4000 Series transmissions
Clutch shift engagement with proven clutch pack design
Shift cover and pump flange each allow 360-degree rotation
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for added durability
Compatible with EX Drive shaft extension; three housing arrangements available
Tech Specs
- Shift Type: Clutch Shift
- Transmission Mounting: 10-Bolt
- Compatible Transmissions: Allison 3000 Series, Allison 4000 Series
- Shift Cover Rotation: 360 degrees
- Pump Flange: Rotatable
- Housing Arrangements: Three
- EX Drive Shaft Extension Compatible: Yes
- Torque Rating: Single intermittent/continuous rating
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) |
