The Muncie RS6S-P89M3-P1PX or RS6SP89M3P1PX is a rear-mounted power take-off (PTO) built specifically for the Detroit DT12 transmission as installed in Freightliner Cascadia and Western Star 5700 Class 8 trucks. This RS6S-P89M Series unit uses a solenoid-activated mechanical shift and is rated at a 1.80 internal gear ratio. Output options include a direct-mount SAE "BB" or a 1410 companion flange. The design takes advantage of the full torque capacity of the DT12 and supports larger hydraulic pumps without a separate pump support, subject to a bending moment limit of 29.5 ft-lb maximum. A genuine Muncie Power Products part available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Fits Detroit DT12 transmission in Freightliner Cascadia and Western Star 5700 Class 8 trucks
Solenoid-activated mechanical shift
1.80 internal gear ratio
Output options: SAE "BB" direct mount or 1410 companion flange
Supports larger hydraulic pumps without a separate pump support (bending moment limit: 29.5 ft-lb max)
Rear-mounted RS6S-P89M Series design uses full torque capacity of the DT12
Tech Specs
- Series: RS6S-P89M
- Internal Gear Ratio: 1.80
- Shift Type: Solenoid-activated mechanical shift
- Output Options: SAE "BB" direct mount or 1410 companion flange
- Transmission Application: Detroit DT12 (Freightliner Cascadia, Western Star 5700, Class 8)
- Mount Location: Rear-mounted
- Bending Moment Limit: 29.5 ft-lb maximum
Additional Information
| Model Number | Max Torque* lb-ft (Nm) | Max HP @ 1,000 RPM (kW) | Outputs | Internal Ratio |
|---|---|---|---|---|
| RS6S-P89M1-P1PX | 317 (430) | 60 (45) | SAE "BB" or 1410 Companion Flange | 0.97 |
| RS6S-P89M2-P1PX | 317 (430) | 60 (45) | SAE "BB" or 1410 Companion Flange | 1.32 |
| Optional Add-On Reduction Box: GB1P-205-125A | 200 (270) | 38 (28) | 1 1/4" Round 5/16" kW Mounts to SAE "BB" Output PTO | 0.49 |
