The Muncie SH8B-U6813-A1EX (also referenced as SH8BU6813A1EX) is a heavy-duty air-shift power take-off from the Muncie SH8 Series, designed to bridge the gap between lighter and heavier PTO lines in high-torque applications. It features an 8-bolt cast iron housing for rigid, straightforward mounting and an integral air-shift mechanism with no exposed air cylinder. The SH Series supports 17 input gear sets to fit most popular transmissions, 5 speed ratios, and 12 output shaft options to match common pump configurations. Torque ratings vary by speed ratio, reaching up to 400 ft-lb intermittent and 280 ft-lb continuous at the top-rated ratios. Call us to confirm proper fit for your transmission and pump setup.
Features
Integral air-shift design with no exposed air cylinder
8-bolt cast iron housing for rigid, high-strength mounting
5 available speed ratios with up to 400 ft-lb intermittent torque (76 HP at 1000 RPM)
17 input gear sets to fit most popular heavy-duty transmissions
12 output shaft options to match most common pump types
Built for high-torque, demanding PTO applications
Tech Specs
- Housing: 8-bolt cast iron
- Shift type: Air shift only (integral, no exposed air cylinder)
- Speed ratios available: 5
- Input gear sets: 17
- Output shaft options: 12
- Intermittent torque (ratios 05, 07): 400 ft-lb (542 Nm)
- Continuous torque (ratios 05, 07): 280 ft-lb (379 Nm)
- Intermittent HP (ratios 05, 07) @ 1000 RPM: 76 HP (57 kW)
- Intermittent torque (ratio 09): 375 ft-lb (508 Nm)
- Continuous torque (ratio 09): 263 ft-lb (356 Nm)
- Intermittent HP (ratio 09) @ 1000 RPM: 71 HP (53 kW)
- Intermittent torque (ratios 12, 13): 325 ft-lb (441 Nm)
- Continuous torque (ratios 12, 13): 228 ft-lb (309 Nm)
- Intermittent HP (ratios 12, 13) @ 1000 RPM: 62 HP (46 kW)
- Dimensions (H x W x L): 11.63 in. x 13.38 in. x 15.63 in.
Additional Information
| PTO TORQUE & HORSEPOWER RATINGS | ||||||
|---|---|---|---|---|---|---|
Speed Ratio | Intermittent HP@1000 RPM | Intermittent Torque lbs.ft. | Continuous Torque lbs.ft. | Intermittent (kw)@1000 RPM | Intermittent Torque (NM) | Continuous Torque (NM) |
| 05 | 76 | 400 | 280 | (57) | (542) | (379) |
| 07 | 76 | 400 | 280 | (57) | (542) | (379) |
| 09 | 71 | 375 | 263 | (53) | (508) | (356) |
| 12 | 62 | 325 | 228 | (46) | (441) | (309) |
| 13 | 62 | 325 | 228 | (46) | (441) | (309) |
