The Muncie A20-A1005-SX3CB or A20A1005SX3CB is a medium-duty, 10-bolt clutch shift power take-off engineered for Allison 3000 and 4000 Series transmissions. The A20 Series design centers on a proven clutch pack with a single intermittent/continuous torque rating, tapered roller bearings for extended service life, and an increased-diameter output shaft for added durability. The shift cover rotates a full 360 degrees and the pump flange is rotatable, giving installers more flexibility during mounting. Three housing arrangements are available, and the unit accepts the EX Drive shaft extension. Extended-length PTO mounting fasteners and increased installation clearance further simplify the job. Call us to confirm proper fit for your specific vehicle and transmission configuration.
Features
Medium-duty clutch shift design for Allison 3000 and 4000 Series transmissions
Rotatable pump flange and 360-degree rotating shift cover for flexible installation
Tapered roller bearings for increased PTO service life
Increased output shaft diameter for higher durability
Single intermittent/continuous torque rating across the speed range
Compatible with EX Drive shaft extension; three housing arrangements available
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Application: Allison 3000 Series and 4000 Series transmissions
- Shift cover rotation: 360 degrees
- Housing arrangements: Three
- Shaft extension compatibility: 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) |
