The Muncie A20-A1007-SX3CB or A20A1007SX3CB is a medium-duty, clutch shift power takeoff from the A20 Series, designed specifically for Allison 3000 and 4000 Series transmissions via a 10-bolt mounting interface. The shift cover rotates 360 degrees, and the pump flange is fully rotatable for flexible installation in tight engine compartments. Tapered roller bearings and an increased-diameter output shaft extend service life, while a maximized gear profile reduces operating noise. The unit carries a single intermittent/continuous torque rating, is available in three housing arrangements, and accepts the EX Drive shaft extension. Call us to confirm the correct housing arrangement and gear speed for your application.
Features
Designed for Allison 3000 and 4000 Series transmissions, 10-bolt mount
Clutch shift engagement with proven clutch pack design
360-degree rotatable shift cover and rotatable pump flange for flexible installation
Tapered roller bearings and increased output shaft diameter for extended service life
Maximized gear design for reduced operating noise
Compatible with EX Drive shaft extension; three housing arrangements available
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Application: Allison 3000 Series and 4000 Series transmissions
- Shift cover rotation: 360 degrees
- Housing arrangements: Three
- Output shaft: Increased diameter
- Drive shaft extension compatibility: EX Drive shaft extension
- Speed 5 - 3000 Series engine %: 74%, 4000 Series engine %: 105%, HP (kW) @ 1,000 RPM: 77 (57), Torque lbs.ft. (Nm): 400 (542)
- Speed 6 - 3000 Series engine %: 85%, 4000 Series engine %: 122%, HP (kW) @ 1,000 RPM: 77 (57), Torque lbs.ft. (Nm): 400 (542)
- Speed 7 - 3000 Series engine %: 99%, 4000 Series engine %: 141%, HP (kW) @ 1,000 RPM: 79 (59), Torque lbs.ft. (Nm): 415 (563)
- Speed 8 - 3000 Series engine %: 114%, 4000 Series engine %: 163%, HP (kW) @ 1,000 RPM: 69 (51), Torque lbs.ft. (Nm): 360 (488)
- Speed 9 - 3000 Series engine %: 122%, 4000 Series engine %: 175%, HP (kW) @ 1,000 RPM: 65 (48), Torque lbs.ft. (Nm): 340 (461)
- Speed 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) |
