The Muncie A20-A1005-HH3BBPX or A20A1005HH3BBPX is a 10-bolt clutch-shift power take-off engineered for Allison 3000 and 4000 Series transmissions. The A20 Series mounts with extended-length PTO fasteners and features a shift cover that rotates 360 degrees, letting installers position it without rerouting shift linkage. A rotatable pump flange and increased clearance around the housing simplify installation in tight spaces. Tapered roller bearings and an enlarged output shaft diameter extend service life, while a proven clutch pack design carries a single intermittent/continuous torque rating across the speed range. The unit is also compatible with the EX Drive shaft extension for flexible driveline configurations. Call us to confirm proper fit for your specific application.
Features
Clutch-shift engagement, 10-bolt mounting, for Allison 3000 and 4000 Series transmissions
Shift cover with 360-degree rotation for flexible linkage positioning
Rotatable pump flange and increased housing clearance for easier installation
Tapered roller bearings and enlarged output shaft diameter for extended service life
Single intermittent/continuous torque rating across all available speed ratios
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) |
