The Muncie A20 Series power take-off A20-A1009-SX31XPX or A20A1009SX31XPX is a medium-duty, clutch-shift PTO designed specifically for Allison 3000 and 4000 Series transmissions, mounting via a 10-bolt interface. The shift cover rotates a full 360 degrees, and the pump flange is also rotatable, giving installers flexible plumbing and mounting orientations. Tapered roller bearings support extended service life, and the increased-diameter output shaft handles higher drive loads. Three housing arrangements are available, and the unit is compatible with the Muncie EX Drive shaft extension. Extended-length PTO mounting fasteners and increased installation clearance round out a design focused on reducing installation time. Call Pro Gear and Transmission to confirm the correct housing arrangement and gear speed for your application.
Features
10-bolt clutch shift design for Allison 3000 and 4000 Series transmissions
Shift cover with 360-degree rotation for flexible installation orientation
Rotatable pump flange simplifies hydraulic plumbing layout
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for higher durability under load
Compatible with Muncie EX Drive shaft extension
Tech Specs
- Mount: 10-bolt Allison interface
- Shift type: Clutch shift
- Compatible transmissions: Allison 3000 Series, Allison 4000 Series
- Shift cover rotation: 360 degrees
- Housing arrangements: Three available
- Output shaft: Increased diameter (see series data)
- Bearings: Tapered roller
- EX Drive compatibility: Yes, 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) |
