The Muncie A20-A1005-JX1BSPX or A20A1005JX1BSPX is a medium-duty, 10-bolt clutch shift power takeoff engineered for Allison 3000 and 4000 Series transmissions. The A20 Series design centers on a rotatable pump flange and a shift cover that allows 360-degree rotation, both of which simplify installation in tight bays. Tapered roller bearings extend service life, and an increased-diameter output shaft adds durability under load. The gear set is optimized for reduced noise, leak paths are minimized by design, and three housing arrangements give you flexibility in mounting orientation. Extended-length PTO mounting fasteners are included, and the unit is compatible with the EX Drive shaft extension. A genuine Muncie part, available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
10-bolt clutch shift PTO for Allison 3000 and 4000 Series transmissions
Rotatable pump flange with shift cover allowing 360-degree rotation
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for added durability
Three housing arrangements for mounting flexibility
Compatible with EX Drive shaft extension; includes extended-length mounting fasteners
Tech Specs
- Manufacturer: Muncie Power Products
- Part Number: A20-A1005-JX1BSPX or A20A1005JX1BSPX
- Series: A20 Series
- Shift Type: Clutch Shift
- Mounting: 10-Bolt
- Designed For: Allison 3000 Series and 4000 Series Transmissions
- Housing Arrangements: Three
- Pump Flange: Rotatable
- Shift Cover Rotation: 360 degrees
- Bearings: Tapered Roller
- EX Drive Shaft Extension Compatible: Yes
- Speed Ratio 5: 3000 Series 74% engine speed / 4000 Series 105% engine speed; Intermittent/Continuous HP 77 kW (57) @ 1,000 RPM; Torque 400 lb.ft. (542 Nm)
- Speed Ratio 6: 3000 Series 85% / 4000 Series 122%; HP 77 kW (57) @ 1,000 RPM; Torque 400 lb.ft. (542 Nm)
- Speed Ratio 7: 3000 Series 99% / 4000 Series 141%; HP 79 kW (59) @ 1,000 RPM; Torque 415 lb.ft. (563 Nm)
- Speed Ratio 8: 3000 Series 114% / 4000 Series 163%; HP 69 kW (51) @ 1,000 RPM; Torque 360 lb.ft. (488 Nm)
- Speed Ratio 9: 3000 Series 122% / 4000 Series 175%; HP 65 kW (48) @ 1,000 RPM; Torque 340 lb.ft. (461 Nm)
- Speed Ratio 10: 3000 Series 131% / 4000 Series 187%; HP 59 kW (44) @ 1,000 RPM; Torque 310 lb.ft. (420 Nm)
- Speed Ratio 11: 3000 Series 151% / 4000 Series 215%; HP 52 kW (39) @ 1,000 RPM; Torque 275 lb.ft. (373 Nm)
- Speed Ratio 12: 3000 Series 162% / 4000 Series 231%; HP 50 kW (37) @ 1,000 RPM; Torque 265 lb.ft. (359 Nm)
- Speed Ratio 15: 3000 Series 201% / 4000 Series 287%; HP 39 kW (29) @ 1,000 RPM; Torque 205 lb.ft. (278 Nm)
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) |
