The Muncie A20-A1010-HX5BB or A20A1010HX5BB is a medium-duty, 10-bolt clutch shift power take-off designed specifically for Allison 3000 and 4000 Series transmissions. It belongs to Muncie's A20 Series, which carries a single intermittent/continuous torque rating across all speed positions and comes in three housing arrangements. The rotatable pump flange and 360-degree rotating shift cover simplify installation and positioning. A proven clutch pack design, tapered roller bearings, and an increased-diameter output shaft contribute to extended service life, while a maximized gear profile keeps operating noise down. The unit is compatible with the EX Drive shaft extension. Call us to confirm the correct ratio and housing arrangement for your application.
Features
10-bolt clutch shift PTO designed for Allison 3000 and 4000 Series transmissions
Rotatable pump flange with 360-degree rotating shift cover for flexible installation
Tapered roller bearings for extended PTO service life
Increased output shaft diameter for added durability
Proven clutch pack design with reduced leak paths
Compatible with EX Drive shaft extension; extended-length PTO mounting fasteners included
Tech Specs
- Mounting: 10-bolt
- Shift type: Clutch shift
- Compatible transmissions: Allison 3000 Series, Allison 4000 Series
- Housing arrangements: Three available
- Torque rating: Single intermittent/continuous rating
- Speed ratio 5: 74% of engine speed (3000 Series), 105% (4000 Series); 77 hp (57 kW) @ 1,000 RPM; 400 lb.ft. (542 Nm) intermittent/continuous torque
- Speed ratio 6: 85% (3000 Series), 122% (4000 Series); 77 hp (57 kW) @ 1,000 RPM; 400 lb.ft. (542 Nm)
- Speed ratio 7: 99% (3000 Series), 141% (4000 Series); 79 hp (59 kW) @ 1,000 RPM; 415 lb.ft. (563 Nm)
- Speed ratio 8: 114% (3000 Series), 163% (4000 Series); 69 hp (51 kW) @ 1,000 RPM; 360 lb.ft. (488 Nm)
- Speed ratio 9: 122% (3000 Series), 175% (4000 Series); 65 hp (48 kW) @ 1,000 RPM; 340 lb.ft. (461 Nm)
- Speed ratio 10: 131% (3000 Series), 187% (4000 Series); 59 hp (44 kW) @ 1,000 RPM; 310 lb.ft. (420 Nm)
- Speed ratio 11: 151% (3000 Series), 215% (4000 Series); 52 hp (39 kW) @ 1,000 RPM; 275 lb.ft. (373 Nm)
- Speed ratio 12: 162% (3000 Series), 231% (4000 Series); 50 hp (37 kW) @ 1,000 RPM; 265 lb.ft. (359 Nm)
- Speed ratio 15: 201% (3000 Series), 287% (4000 Series); 39 hp (29 kW) @ 1,000 RPM; 205 lb.ft. (278 Nm)
- Part number: A20-A1010-HX5BB or A20A1010HX5BB
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) |
