The Muncie A20-A1005-XX31XPX or A20A1005XX31XPX is a medium-duty, 10-bolt clutch shift power take-off designed for Allison 3000 and 4000 Series transmissions. The A20 Series uses a proven clutch pack design with tapered roller bearings to extend PTO service life, and an increased-diameter output shaft for added durability. The shift cover rotates 360 degrees, and the rotatable pump flange allows flexible hydraulic plumbing layouts. 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 simplify fitting. Call us to confirm the correct speed ratio and housing arrangement for your specific application.
Features
Medium-duty clutch shift design for Allison 3000 and 4000 Series transmissions
Tapered roller bearings for extended PTO service life
Shift cover with 360-degree rotation for flexible mounting orientation
Rotatable pump flange simplifies hydraulic plumbing
Increased output shaft diameter for higher durability
Compatible with Muncie EX Drive shaft extension
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Transmission application: Allison 3000 Series and 4000 Series
- Housing arrangements: Three available
- Shift cover rotation: 360 degrees
- Bearings: Tapered roller
- EX Drive shaft extension compatibility: Yes
- Speed ratio 5 - Allison 3000 Series engine %: 74% / 4000 Series engine %: 105% / HP (kW) at 1,000 RPM: 77 (57) / Torque lbs.ft. (Nm): 400 (542)
- Speed ratio 6 - Allison 3000 Series engine %: 85% / 4000 Series engine %: 122% / HP (kW) at 1,000 RPM: 77 (57) / Torque lbs.ft. (Nm): 400 (542)
- Speed ratio 7 - Allison 3000 Series engine %: 99% / 4000 Series engine %: 141% / HP (kW) at 1,000 RPM: 79 (59) / Torque lbs.ft. (Nm): 415 (563)
- Speed ratio 8 - Allison 3000 Series engine %: 114% / 4000 Series engine %: 163% / HP (kW) at 1,000 RPM: 69 (51) / Torque lbs.ft. (Nm): 360 (488)
- Speed ratio 9 - Allison 3000 Series engine %: 122% / 4000 Series engine %: 175% / HP (kW) at 1,000 RPM: 65 (48) / Torque lbs.ft. (Nm): 340 (461)
- Speed ratio 10 - Allison 3000 Series engine %: 131% / 4000 Series engine %: 187% / HP (kW) at 1,000 RPM: 59 (44) / Torque lbs.ft. (Nm): 310 (420)
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) |
