The Muncie SH8S-S6812-P3BX or SH8SS6812P3BX is an air-shift-only power take-off from the Muncie SH Series, engineered to fill the gap between lighter-duty and heavier-duty PTO families. It mounts via an 8-bolt cast iron housing and uses an integral air shift design that eliminates exposed air cylinders. Five available speed ratios provide flexibility across applications, while 17 input gear sets cover most popular transmission configurations. Twelve output shaft options allow pairing with a wide range of hydraulic pumps. Intermittent torque ratings vary by speed ratio, reaching up to 400 lb-ft (542 Nm) at the faster ratios, with continuous ratings up to 280 lb-ft (379 Nm). Call us to confirm proper fit for your transmission and pump combination.
Features
Integral air shift design with no exposed air cylinder
8-bolt cast iron housing for straightforward mounting and structural strength
17 input gear sets to fit most popular transmission models
5 speed ratios available across the series for application flexibility
12 output shaft options to match most common hydraulic pump types
Intermittent torque up to 400 lb-ft (542 Nm); continuous torque up to 280 lb-ft (379 Nm) at top speed ratios
Tech Specs
- Housing: 8-bolt cast iron
- Shift Type: Air shift only (integral design, no exposed air cylinder)
- Speed Ratios: 5 available
- Input Gear Sets: 17 (fits most popular transmissions)
- Output Shaft Options: 12 (fits most popular pump types)
- Intermittent Torque (Ratio 05): 400 lb-ft / 542 Nm
- Continuous Torque (Ratio 05): 280 lb-ft / 379 Nm
- Intermittent HP @ 1000 RPM (Ratio 05): 76 HP / 57 kW
- Intermittent Torque (Ratio 07): 400 lb-ft / 542 Nm
- Continuous Torque (Ratio 07): 280 lb-ft / 379 Nm
- Intermittent HP @ 1000 RPM (Ratio 07): 76 HP / 57 kW
- Intermittent Torque (Ratio 09): 375 lb-ft / 508 Nm
- Continuous Torque (Ratio 09): 263 lb-ft / 356 Nm
- Intermittent HP @ 1000 RPM (Ratio 09): 71 HP / 53 kW
- Intermittent Torque (Ratio 12): 325 lb-ft / 441 Nm
- Continuous Torque (Ratio 12): 228 lb-ft / 309 Nm
- Intermittent HP @ 1000 RPM (Ratio 12): 62 HP / 46 kW
- Intermittent Torque (Ratio 13): 325 lb-ft / 441 Nm
- Continuous Torque (Ratio 13): 228 lb-ft / 309 Nm
- Intermittent HP @ 1000 RPM (Ratio 13): 62 HP / 46 kW
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)
|
