The Muncie SH8 Series power take-off, part number SH8S-U6812-P3KX or SH8SU6812P3KX, is an air-shift-only PTO built for high-torque applications. Its integral air shift design keeps the air cylinder enclosed within the housing, eliminating exposed external components. The 8-bolt cast iron housing simplifies mounting and handles demanding duty cycles. With 17 input gear sets covering most popular transmissions, 5 available speed ratios, and 12 output shaft options to suit most common pump types, this unit covers a wide range of vocational truck installations. Intermittent torque capacity reaches 400 lb-ft (542 Nm) at speed ratios 05 and 07. Call us to confirm proper fit for your specific transmission and pump combination.
Features
Integral air shift design - no exposed air cylinder
8-bolt cast iron housing for straightforward mounting and structural strength
17 input gear sets to fit most popular transmissions
5 speed ratios available for application flexibility
12 output shaft options to match most common pump types
Intermittent torque ratings from 325 to 400 lb-ft (441-542 Nm) depending on speed ratio
Tech Specs
- Series: Muncie SH8 Series Power Take-Off
- Shift Type: Air shift only (integral, no exposed air cylinder)
- Housing: 8-bolt cast iron
- Input Gear Sets: 17 (fits most popular transmissions)
- Speed Ratios Available: 5
- Output Shaft Options: 12
- Dimensions (H x W x L): 11.63 in. x 13.38 in. x 15.63 in.
- Intermittent Torque (Ratios 05, 07): 400 lb-ft (542 Nm)
- Continuous Torque (Ratios 05, 07): 280 lb-ft (379 Nm)
- Intermittent HP @ 1000 RPM (Ratios 05, 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 (Ratios 12, 13): 325 lb-ft (441 Nm)
- Continuous Torque (Ratios 12, 13): 228 lb-ft (309 Nm)
- Intermittent HP @ 1000 RPM (Ratios 12, 13): 62 HP (46 kW)
- NMFC Code: 128520 - Hydraulic PTOs, Pumps, Motors, etc.
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) |
