The Muncie A20-A1005-SX3X4PX or A20A1005SX3X4PX is a medium-duty, 10-bolt clutch shift power take-off engineered for Allison 3000 and 4000 Series transmissions. The A20 Series uses a proven clutch pack design with tapered roller bearings to extend service life, and an increased-diameter output shaft for added durability under load. The shift cover rotates a full 360 degrees, and the rotatable pump flange lets you position the output to suit your installation. Extended-length PTO mounting fasteners and increased housing clearance simplify installation, while a maximized gear design keeps noise low. The unit is also compatible with the EX Drive shaft extension. Call us to confirm proper fit for your specific transmission and application.
Features
10-bolt clutch shift PTO for Allison 3000 and 4000 Series transmissions
Proven clutch pack design with tapered roller bearings for extended PTO life
360-degree rotatable shift cover and rotatable pump flange for flexible installation
Increased output shaft diameter for higher durability
Three housing arrangements available; compatible with EX Drive shaft extension
Extended-length mounting fasteners and increased clearance for easier installation
Tech Specs
- Shift Type: Clutch Shift
- Mount: 10-Bolt
- Transmission Compatibility: Allison 3000 Series, Allison 4000 Series
- Housing Arrangements: Three
- Shift Cover Rotation: 360 degrees
- Output Shaft: Increased diameter design
- Drive Extension Compatibility: EX Drive shaft extension
- Speed Ratio 5 - 3000 Series Engine %: 74%, 4000 Series Engine %: 105%, HP (kW) @ 1,000 RPM: 77 (57), Torque lbs.ft. (Nm): 400 (542)
- Speed Ratio 6 - 3000 Series Engine %: 85%, 4000 Series Engine %: 122%, HP (kW) @ 1,000 RPM: 77 (57), Torque lbs.ft. (Nm): 400 (542)
- Speed Ratio 7 - 3000 Series Engine %: 99%, 4000 Series Engine %: 141%, HP (kW) @ 1,000 RPM: 79 (59), Torque lbs.ft. (Nm): 415 (563)
- Speed Ratio 8 - 3000 Series Engine %: 114%, 4000 Series Engine %: 163%, HP (kW) @ 1,000 RPM: 69 (51), Torque lbs.ft. (Nm): 360 (488)
- Speed Ratio 9 - 3000 Series Engine %: 122%, 4000 Series Engine %: 175%, HP (kW) @ 1,000 RPM: 65 (48), Torque lbs.ft. (Nm): 340 (461)
- Speed Ratio 10 - 3000 Series Engine %: 131%, 4000 Series Engine %: 187%, HP (kW) @ 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) |
