The Muncie SH8B-U6809-A1PX or SH8BU6809A1PX is an air-shift-only power take-off from Muncie's SH Series, built for high-torque applications that fall between lighter-duty and heavy-duty PTO families. The SH8 designation indicates an 8-bolt cast iron housing, providing straightforward mounting with solid structural strength. The integral air shift design keeps the air cylinder internal, eliminating the exposed cylinder found on conventional units. With 17 input gear set options, this PTO fits most popular transmission configurations, and 12 output shaft choices cover the majority of common pump types. Five available speed ratios let fleet and vocational operators match pump speed to application demands. Call us to confirm the correct configuration for your truck and pump.
Features
Air shift only design with integral air cylinder - no exposed cylinder hardware
8-bolt cast iron housing for straightforward, high-strength mounting
17 input gear set options cover most popular transmission configurations
12 output shaft options fit most common pump types
5 available speed ratios to match application requirements
Built for high-torque applications between light and heavy PTO duty ranges
Tech Specs
- Housing: 8-bolt cast iron
- Shift type: Air shift only
- Input gear sets: 17 options
- Output shaft options: 12
- Speed ratios available: 5
- Torque rating (intermittent, speed ratio 05 or 07): 400 lb.ft. (542 Nm)
- Torque rating (continuous, speed ratio 05 or 07): 280 lb.ft. (379 Nm)
- Torque rating (intermittent, speed ratio 09): 375 lb.ft. (508 Nm)
- Torque rating (continuous, speed ratio 09): 263 lb.ft. (356 Nm)
- Torque rating (intermittent, speed ratio 12 or 13): 325 lb.ft. (441 Nm)
- Torque rating (continuous, speed ratio 12 or 13): 228 lb.ft. (309 Nm)
- Intermittent HP @ 1000 RPM (speed ratio 05 or 07): 76 HP (57 kW)
- Intermittent HP @ 1000 RPM (speed ratio 09): 71 HP (53 kW)
- Intermittent HP @ 1000 RPM (speed ratio 12 or 13): 62 HP (46 kW)
- Note: Torque and horsepower ratings are series-level values; confirm specific ratio for your part number when ordering.
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)
|
