The Muncie SH8B-S6812-A1ZX (also referenced as SH8BS6812A1ZX) is an SH8 Series air-shift power take-off built for high-torque truck applications. The integral air shift design keeps the air cylinder fully enclosed in the housing, eliminating exposed components. The 8-bolt cast iron housing mounts securely and covers demanding duty cycles. Five available speed ratios give this unit broad versatility across hydraulic circuits, and 12 output shaft options cover the most common pump configurations. Seventeen input gear sets allow fitment to most popular transmissions. At the top speed ratios (05 and 07), intermittent torque reaches 400 lb-ft (542 Nm) at 76 hp. Call us to confirm the correct ratio and output shaft configuration for your application.
Features
Integral air shift design: air cylinder is fully enclosed, no exposed external components
8-bolt cast iron housing for secure, high-strength mounting
5 available speed ratios to match hydraulic circuit requirements
12 output shaft options to fit the most common pump types
17 input gear sets compatible with most popular transmissions
Intermittent torque rating up to 400 lb-ft (542 Nm) at 76 hp at speed ratios 05 and 07
Tech Specs
- Series: Muncie SH8 Series Power Take-Off
- 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 (Ratio 05): 400 lb-ft (542 Nm)
- Continuous Torque (Ratio 05): 280 lb-ft (379 Nm)
- Intermittent HP at 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 at 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 at 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 at 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 at 1000 RPM (Ratio 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) |
