The Muncie SH8 Series Power Take-Off, part number SH8S-U6809-M1KX or SH8SU6809M1KX, is an air-shift-only PTO built for high-torque truck applications. The integral air shift design keeps the air cylinder fully enclosed within the housing, eliminating exposed components that can snag or corrode. The 8-bolt cast iron housing mounts securely to the transmission and handles demanding duty cycles. With 17 input gear sets available across the SH Series, this unit fits most popular transmission configurations, while 12 output shaft options accommodate a wide range of pump types. Five speed ratios let you match output to your hydraulic system requirements. Intermittent torque ratings at the top speed ratios reach 400 lb-ft at 1000 RPM. Call us to confirm proper fit for your specific transmission and pump configuration.
Features
Integral air shift design - no exposed air cylinder for a cleaner, more protected installation
8-bolt cast iron housing for secure mounting and high structural strength
17 input gear sets to fit most popular transmission applications
12 output shaft options to accommodate most popular pump types
5 available speed ratios - intermittent torque ranges from 325 to 400 lb-ft at 1000 RPM
Air-shift-only operation designed for high-torque duty cycles
Tech Specs
- Housing: 8-bolt cast iron
- Shift Type: Air shift (integral, no exposed air cylinder)
- Input Gear Sets: 17 (fits most popular transmissions)
- Output Shaft Options: 12 (fits most popular pump types)
- Speed Ratios Available: 5
- Intermittent Torque (Ratios 05, 07): 400 lb-ft / 542 Nm at 1000 RPM
- Continuous Torque (Ratios 05, 07): 280 lb-ft / 379 Nm
- Intermittent HP (Ratios 05, 07): 76 HP / 57 kW at 1000 RPM
- Intermittent Torque (Ratio 09): 375 lb-ft / 508 Nm at 1000 RPM
- Continuous Torque (Ratio 09): 263 lb-ft / 356 Nm
- Intermittent HP (Ratio 09): 71 HP / 53 kW at 1000 RPM
- Intermittent Torque (Ratios 12, 13): 325 lb-ft / 441 Nm at 1000 RPM
- Continuous Torque (Ratios 12, 13): 228 lb-ft / 309 Nm
- Intermittent HP (Ratios 12, 13): 62 HP / 46 kW at 1000 RPM
- 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) |
