The Muncie A20-A1012-HX3CBPW or A20A1012HX3CBPW is a medium-duty, 10-bolt clutch shift power take-off designed specifically for Allison 3000 and 4000 Series transmissions. The A20 Series carries a single intermittent/continuous torque rating and is available in three housing arrangements, giving installers flexibility across a range of truck configurations. A rotatable pump flange and shift cover with 360-degree rotation simplify installation and plumbing. Extended-length PTO mounting fasteners and increased clearance reduce fitment headaches. The proven clutch pack design, tapered roller bearings, and enlarged output shaft diameter contribute to long service life, while the maximized gear design keeps operating noise down. This unit is also compatible with the EX Drive shaft extension. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Designed for Allison 3000 and 4000 Series transmissions
Clutch shift engagement with proven clutch pack design
Shift cover allows 360-degree rotation for flexible installation
Rotatable pump flange with reduced leak paths
Tapered roller bearings and enlarged output shaft diameter for extended service life
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) |
