The Muncie A20-A1008-HR1CBPW or A20A1008HR1CBPW is a medium-duty, 10-bolt clutch shift power takeoff engineered specifically for Allison 3000 and 4000 Series transmissions. The shift cover rotates 360 degrees, and the pump flange is fully rotatable, so installation adapts to tight underbody clearances without rerouting plumbing. A proven clutch pack design carries a single intermittent and continuous torque rating across the speed range, removing guesswork when spec-ing duty cycles. Tapered roller bearings and an increased-diameter output shaft extend service life, while minimized leak paths and noise-optimized gearing keep the unit running cleanly. Three housing arrangements and compatibility with the EX Drive shaft extension give integrators additional flexibility. Available from Pro Gear and Transmission. Call us to confirm the right ratio and housing arrangement for your chassis.
Features
10-bolt clutch shift PTO for Allison 3000 and 4000 Series transmissions
Fully rotatable pump flange and 360-degree rotating shift cover for flexible installation
Single intermittent and continuous torque rating across all available speed ratios
Tapered roller bearings and increased output shaft diameter for extended service life
Three housing arrangements available; compatible with EX Drive shaft extension
Extended-length PTO mounting fasteners and increased clearance for easier installation
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) |
