The Muncie A20-A1007-SX31X or A20A1007SX31X is a medium-duty, clutch shift power take-off from the Muncie A20 Series, designed for Allison 3000 and 4000 Series transmissions. The 10-bolt mount uses a proven clutch pack design with tapered roller bearings to extend service life. A shift cover with 360-degree rotation simplifies plumbing and installation, while a rotatable pump flange and increased clearance make fitment easier on the vehicle. The enlarged output shaft diameter adds durability, and the gear geometry is optimized to reduce operating noise. Three housing arrangements are available, and the unit is compatible with the EX Drive shaft extension. Call us to confirm the correct ratio and housing arrangement for your application.
Features
10-bolt clutch shift PTO designed for Allison 3000 and 4000 Series transmissions
Tapered roller bearings for extended PTO service life
Shift cover with 360-degree rotation for flexible plumbing
Rotatable pump flange with increased clearance for easier installation
Enlarged output shaft diameter for added durability
Compatible with EX Drive shaft extension; three housing arrangements available
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) |
