The Muncie A20-A1010-HX1BB or A20A1010HX1BB is a medium-duty, 10-bolt clutch shift power take-off engineered for Allison 3000 and 4000 Series transmissions. The A20 Series design uses a proven clutch pack with tapered roller bearings for extended service life and an increased-diameter output shaft for greater durability. A rotatable pump flange and a shift cover with 360-degree rotation simplify installation and pump positioning, while increased clearance around the unit makes mounting more straightforward. Reduced leak paths and a maximized gear profile keep operation quiet. Three housing arrangements are available, and the unit accepts the EX Drive shaft extension. Call us to confirm which housing and ratio configuration fits your specific application.
Features
10-bolt clutch shift design for Allison 3000 and 4000 Series transmissions
Tapered roller bearings for increased PTO service life
Rotatable pump flange and 360-degree rotating shift cover for flexible installation
Increased output shaft diameter for higher durability
Three housing arrangements available
Compatible with EX Drive shaft extension
Tech Specs
- Transmission Compatibility: Allison 3000 Series and 4000 Series
- Shift Type: Clutch Shift
- Mounting: 10-Bolt
- Housing Arrangements: Three available
- Pump Flange: Rotatable
- Shift Cover Rotation: 360 degrees
- Bearing Type: Tapered roller bearings
- 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) |
