The Muncie A20-A1005-HX1BBPW or A20A1005HX1BBPW is a medium-duty, 10-bolt clutch shift power take-off engineered for Allison 3000 and 4000 Series transmissions. The A20 Series uses a proven clutch pack design with tapered roller bearings to extend service life, and features a shift cover with 360-degree rotation for flexible installation. A rotatable pump flange and increased housing clearance simplify mounting, while an enlarged output shaft diameter adds durability at the drive end. Gear geometry is maximized for reduced operating noise, and reduced leak paths keep maintenance intervals manageable. Three housing arrangements are available, and the unit accepts the EX Drive shaft extension for added application flexibility. Call us to confirm the correct arrangement for your truck.
Features
10-bolt clutch shift PTO for Allison 3000 and 4000 Series transmissions
Rotatable pump flange with 360-degree rotating shift cover for flexible mounting
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for added drive-end durability
Maximized gear design to minimize operating noise
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) |
