The Muncie A20 Series 10-Bolt Clutch Shift Power Take-Off, part number A20-A1011-HX1BSPX or A20A1011HX1BSPX, is a medium-duty PTO engineered specifically for Allison 3000 and 4000 Series transmissions. The shift cover rotates a full 360 degrees for flexible mounting, and the rotatable pump flange simplifies hydraulic plumbing. Tapered roller bearings extend service life, while an enlarged output shaft diameter adds durability under load. The clutch pack design carries a single intermittent/continuous torque rating, and the unit is compatible with the EX Drive shaft extension. Extended-length PTO mounting fasteners and increased housing clearance ease installation. Three housing arrangements are available to suit different mounting requirements. Call us to confirm the right configuration for your application.
Features
Designed for Allison 3000 and 4000 Series transmissions
Clutch shift operation with proven clutch pack design
Shift cover allows 360-degree rotation for flexible mounting
Rotatable pump flange for simplified hydraulic plumbing
Tapered roller bearings for extended PTO service life
Compatible with EX Drive shaft extension; three housing arrangements available
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Transmission compatibility: Allison 3000 Series and 4000 Series
- Shift cover rotation: 360 degrees
- Housing arrangements: Three
- Output shaft: Increased diameter design
- EX Drive shaft extension: Compatible
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) |
