The Muncie A20-A1010-SR3X4PX (also referenced as A20A1010SR3X4PX) is a medium-duty, 10-bolt clutch shift power take-off engineered specifically for Allison 3000 and 4000 Series transmissions. The A20 Series mounts with extended-length fasteners and offers three housing arrangements, giving installers flexibility in tight bays. A 360-degree rotating shift cover and rotatable pump flange simplify plumbing and actuator routing without repositioning the unit. Tapered roller bearings and an increased-diameter output shaft address long-term durability, while a maximized gear profile keeps operating noise down. The clutch pack design carries a single intermittent/continuous torque rating across a range of speed ratios. Compatible with the Muncie EX Drive shaft extension. Call us to confirm the correct ratio and housing arrangement for your application.
Features
10-bolt clutch shift PTO for Allison 3000 and 4000 Series transmissions
Three housing arrangements with extended-length PTO mounting fasteners
360-degree rotating shift cover and rotatable pump flange for flexible installation
Tapered roller bearings for extended service life
Increased output shaft diameter for added durability
Compatible with Muncie EX Drive shaft extension
Tech Specs
- Manufacturer: Muncie Power Products
- Part Number: A20-A1010-SR3X4PX or A20A1010SR3X4PX
- Series: A20
- Transmission Fitment: Allison 3000 Series, Allison 4000 Series
- Shift Type: Clutch shift
- Mounting: 10-bolt
- Housing Arrangements: Three
- Torque Rating: Single intermittent/continuous rating (varies by speed ratio)
- Bearing Type: Tapered roller bearings
- Compatibility: EX Drive shaft extension
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) |
