The Muncie A20-A1005-HX1BS or A20A1005HX1BS is a medium-duty, 10-bolt clutch shift power takeoff engineered specifically for Allison 3000 and 4000 Series transmissions. The A20 Series mounts with extended-length PTO fasteners and accepts three housing arrangements, giving installers flexibility for tight bays. A rotatable pump flange and shift cover with 360-degree rotation reduce repositioning time during installation. The proven clutch pack design pairs with tapered roller bearings for extended service life, while the increased output shaft diameter handles higher drive loads. Gear geometry is optimized to minimize operating noise. The unit is also compatible with the EX Drive shaft extension. Call Pro Gear and Transmission to confirm the correct configuration 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 increased clearance for easier mounting
Tapered roller bearings for extended PTO service life
Compatible with EX Drive shaft extension
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) |
