The Muncie SH8S-U6813-A3PX or SH8SU6813A3PX is an SH Series air shift power take-off built for high-torque truck applications. The integral air shift design eliminates exposed air cylinders, keeping the unit compact and protected. The 8-bolt cast iron housing mounts securely to the transmission, and compatibility with 17 input gear sets means this PTO fits most popular transmission models. Five available speed ratios give operators flexibility across duty cycles, while 12 output shaft options accommodate most common pump configurations. Intermittent torque capacity reaches 400 ft-lbs at ratios 05 and 07. Call us to confirm proper fit for your application.
Features
Integral air shift design with no exposed air cylinder
8-bolt cast iron housing for secure, high-strength mounting
Compatible with 17 input gear sets to fit most popular transmissions
5 speed ratios for flexibility across applications
12 output shaft options to match most common pump types
Intermittent torque ratings up to 400 ft-lbs (542 Nm) at speed ratios 05 and 07
Tech Specs
- Housing: 8-bolt cast iron
- Shift Type: Air shift (integral, no exposed air cylinder)
- Input Gear Sets: 17 (fits most popular transmissions)
- Speed Ratios Available: 5
- Output Shaft Options: 12
- Intermittent Torque (Ratios 05, 07): 400 ft-lbs (542 Nm)
- Continuous Torque (Ratios 05, 07): 280 ft-lbs (379 Nm)
- Intermittent HP @ 1000 RPM (Ratios 05, 07): 76 HP (57 kW)
- Intermittent Torque (Ratio 09): 375 ft-lbs (508 Nm)
- Continuous Torque (Ratio 09): 263 ft-lbs (356 Nm)
- Intermittent HP @ 1000 RPM (Ratio 09): 71 HP (53 kW)
- Intermittent Torque (Ratios 12, 13): 325 ft-lbs (441 Nm)
- Continuous Torque (Ratios 12, 13): 228 ft-lbs (309 Nm)
- Intermittent HP @ 1000 RPM (Ratios 12, 13): 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) |
