The Muncie SH8S-U6813-A3IX or SH8SU6813A3IX is an SH Series air-shift power take-off built for high-torque truck applications. This unit uses an integral air-shift design with no exposed air cylinder, mounted in an 8-bolt cast iron housing that installs without special tooling. With 17 input gear set options, it covers most popular transmission applications, and 12 output shaft configurations let it pair with most common hydraulic pump types. Five available speed ratios give this series its flexibility across demanding vocational and commercial truck applications. Torque ratings vary by speed ratio - at ratio 05 or 07, the series reaches 400 lb-ft intermittent and 280 lb-ft continuous torque at 1,000 RPM. Call us to confirm proper fitment for your specific transmission and pump setup.
Features
Integral air-shift design - no exposed air cylinder
8-bolt cast iron housing for straightforward mounting and high structural strength
17 input gear sets to match most popular transmissions
12 output shaft options to fit most common hydraulic pump types
5 available speed ratios across the SH Series
Intermittent torque up to 400 lb-ft (542 Nm) at 1,000 RPM depending on ratio selected
Tech Specs
- Housing: 8-bolt cast iron
- Shift type: Air shift (integral, no exposed air cylinder)
- Input gear sets available: 17
- Output shaft options: 12
- Speed ratios available: 5
- Dimensions (H x W x L): 11.63 in. x 13.38 in. x 15.63 in.
- Series torque rating (ratio 05 or 07): 400 lb-ft intermittent / 280 lb-ft continuous (542 Nm / 379 Nm)
- Series torque rating (ratio 09): 375 lb-ft intermittent / 263 lb-ft continuous (508 Nm / 356 Nm)
- Series torque rating (ratio 12 or 13): 325 lb-ft intermittent / 228 lb-ft continuous (441 Nm / 309 Nm)
- Series intermittent HP at 1,000 RPM: 76 HP (ratios 05, 07), 71 HP (ratio 09), 62 HP (ratios 12, 13)
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) |
