The Muncie A20-A1005-SX11X or A20A1005SX11X is a medium-duty, clutch shift power take-off from the Muncie A20 Series, engineered specifically for Allison 3000 and 4000 Series transmissions. The 10-bolt mounting pattern pairs with a shift cover that rotates 360 degrees, giving installers full flexibility in tight engine compartments. A rotatable pump flange and extended-length PTO mounting fasteners reduce installation time. Internally, tapered roller bearings extend service life, and the increased-diameter output shaft handles higher-duty cycles. Gear geometry is optimized to reduce noise, and reduced leak paths keep maintenance intervals predictable. Three housing arrangements are available, and the unit is compatible with the EX Drive shaft extension. Call us to confirm the correct housing arrangement and output configuration for your application.
Features
10-bolt clutch shift PTO for Allison 3000 and 4000 Series transmissions
Shift cover allows 360-degree rotation for flexible installation positioning
Rotatable pump flange with extended-length mounting fasteners
Tapered roller bearings and enlarged output shaft diameter for extended service life
Three housing arrangements available; compatible with EX Drive shaft extension
Single intermittent/continuous torque rating simplifies application selection
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Compatible transmissions: Allison 3000 Series, Allison 4000 Series
- Shift cover rotation: 360 degrees
- Bearing type: Tapered roller bearings
- Housing arrangements: Three
- EX Drive shaft extension compatible: Yes
- Part number: A20-A1005-SX11X or A20A1005SX11X
Additional Information
| SPEED | 3000 SERIES | 4000 SERIES | INTERMITTENT CONTINUOUS HP (KW) | INTERMITTENT/CONTINOUS |
| RATIO | ENGINE % | ENGINE % | HP (KW) @ 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) |
