The Muncie A20-A1010-SX3PBPX or A20A1010SX3PBPX is a medium-duty, 10-bolt clutch shift power take-off engineered for Allison 3000 and 4000 series transmissions. The A20 series carries a single intermittent/continuous torque rating, which simplifies application selection compared to units with separate duty-cycle limits. Speed ratios range from 5 through 15, covering a wide spread of output requirements. The rotatable pump flange and shift cover with 360-degree rotation give the installer real flexibility in tight engine compartments, while extended-length PTO mounting fasteners and increased clearance reduce installation time. Tapered roller bearings protect the output shaft under sustained load, and the enlarged output shaft diameter adds durability at the drive connection. Three housing arrangements and compatibility with the EX Drive shaft extension make it adaptable across multiple truck configurations. Call Pro Gear and Transmission to confirm the correct housing arrangement and ratio for your application.
Features
10-bolt clutch shift PTO for Allison 3000 and 4000 series transmissions
Single intermittent/continuous torque rating across all speed ratios (5 through 15)
Rotatable pump flange and 360-degree rotatable shift cover for flexible installation
Tapered roller bearings and increased output shaft diameter for extended service life
Three housing arrangements with compatibility for EX Drive shaft extension
Extended-length PTO mounting fasteners and increased clearance for easier installation
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) |
