The Muncie A20 Series 10-bolt clutch shift power take-off, part number A20-A1010-HX31X or A20A1010HX31X, is designed for Allison 3000 and 4000 Series transmissions. It carries a single intermittent/continuous torque rating across its speed range, with output at 1,000 RPM scaled to engine percentage - from 74% of engine speed at ratio 5 up to 131% at ratio 10 on the 3000 Series, and from 105% to 187% on the 4000 Series. The shift cover rotates 360 degrees for flexible installation, and the rotatable pump flange further simplifies mounting. Tapered roller bearings extend service life, and the increased-diameter output shaft handles higher drive loads. Three housing arrangements are available. Compatible with the EX Drive shaft extension. Call us to confirm the correct ratio and housing arrangement for your application.
Features
Designed for Allison 3000 and 4000 Series transmissions
Clutch shift engagement with 360-degree rotating shift cover for flexible installation positioning
Rotatable pump flange simplifies hydraulic pump mounting
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for higher drive durability
Compatible with EX Drive shaft extension; three housing arrangements available
Tech Specs
- Speed Ratio 5: 3000 Series 74% engine speed / 4000 Series 105% engine speed - 77 HP (57 kW) intermittent/continuous @ 1,000 RPM - 400 lb.ft. (542 Nm) torque
- Speed Ratio 6: 3000 Series 85% / 4000 Series 122% - 77 HP (57 kW) @ 1,000 RPM - 400 lb.ft. (542 Nm) torque
- Speed Ratio 7: 3000 Series 99% / 4000 Series 141% - 79 HP (59 kW) @ 1,000 RPM - 415 lb.ft. (563 Nm) torque
- Speed Ratio 8: 3000 Series 114% / 4000 Series 163% - 69 HP (51 kW) @ 1,000 RPM - 360 lb.ft. (488 Nm) torque
- Speed Ratio 9: 3000 Series 122% / 4000 Series 175% - 65 HP (48 kW) @ 1,000 RPM - 340 lb.ft. (461 Nm) torque
- Speed Ratio 10: 3000 Series 131% / 4000 Series 187% - 59 HP (44 kW) @ 1,000 RPM - 310 lb.ft. (420 Nm) torque
- Mounting: 10-bolt
- Shift type: Clutch shift
- Housing arrangements: Three available
- EX Drive shaft extension: Compatible
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) |
