The Muncie A20 Series power take-off, part number A20-A1010-HX3X4 or A20A1010HX3X4, is a medium-duty clutch shift PTO engineered specifically for Allison 3000 and 4000 Series transmissions via a 10-bolt mount. The shift cover rotates 360 degrees for flexible installation, and the rotatable pump flange allows multiple plumbing orientations without repositioning the unit. Tapered roller bearings extend service life, while the enlarged output shaft diameter adds durability under sustained loads. Extended-length mounting fasteners are included, and the unit is compatible with the Muncie EX Drive shaft extension. Three housing arrangements are available to suit different chassis configurations. Call us to confirm the right housing and ratio for your application.
Features
Designed for Allison 3000 and 4000 Series transmissions, 10-bolt mount
Clutch pack design with a single intermittent/continuous torque rating
Shift cover allows 360-degree rotation for installation flexibility
Rotatable pump flange and reduced leak paths
Tapered roller bearings for extended PTO service life
Compatible with Muncie EX Drive shaft extension; three housing arrangements available
Tech Specs
- Transmission Application: Allison 3000 Series and 4000 Series
- Mount: 10-bolt
- Shift Type: Clutch shift
- Shift Cover Rotation: 360 degrees
- Housing Arrangements: Three
- Bearing Type: Tapered roller
- EX Drive Compatibility: Compatible with Muncie 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) |
