The Muncie A20-A1007-SX3BB or A20A1007SX3BB is a medium-duty, 10-bolt clutch shift power take-off engineered for Allison 3000 and 4000 Series transmissions. It carries a single intermittent/continuous torque rating across the available speed ratios, rated at 77 lb.ft. (57 Nm) intermittent/continuous at ratio positions 5 and 6, stepping through 79 lb.ft. (59 Nm) at position 7 and scaling down through the higher ratios. The shift cover rotates a full 360 degrees for flexible installation positioning, and the rotatable pump flange accommodates multiple hydraulic circuit layouts. Tapered roller bearings and an increased-diameter output shaft contribute to extended service life. Three housing arrangements are available, and the unit is compatible with the EX Drive shaft extension. Call us to confirm the correct ratio and housing configuration for your application.
Features
10-bolt clutch shift mount designed for Allison 3000 and 4000 Series transmissions
Single intermittent/continuous torque rating; 77 lb.ft. (57 Nm) at ratio positions 5 and 6
360-degree rotatable shift cover and rotatable pump flange for flexible installation
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for added durability
Compatible with EX Drive shaft extension; three housing arrangements available
Tech Specs
- Transmission Compatibility: Allison 3000 Series, Allison 4000 Series
- Mount: 10-bolt clutch shift
- Shift Cover Rotation: 360 degrees
- Pump Flange: Rotatable
- Output Shaft: Increased diameter (heavy-duty)
- Bearings: Tapered roller
- Housing Arrangements: Three available
- EX Drive Shaft Extension: Compatible
- Torque Rating (Ratio 5): 77 lb.ft. (57 Nm) intermittent/continuous
- Torque Rating (Ratio 6): 77 lb.ft. (57 Nm) intermittent/continuous
- Torque Rating (Ratio 7): 79 lb.ft. (59 Nm) intermittent/continuous
- Torque Rating (Ratio 8): 69 lb.ft. (51 Nm) intermittent/continuous
- Torque Rating (Ratio 9): 65 lb.ft. (48 Nm) intermittent/continuous
- Torque Rating (Ratio 10): 59 lb.ft. (44 Nm) intermittent/continuous
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) |
