The Muncie RS6S-P89M1-P1CX or RS6SP89M1P1CX is a rear-mounted power take-off engineered specifically for Detroit DT12 transmissions in Freightliner and Western Star Class 8 Cascadia and 5700 trucks. It carries a 0.97 internal ratio and uses solenoid-activated mechanical shift for reliable engagement. Output options include direct mount or companion flange configurations, giving installers flexibility depending on the hydraulic pump setup. The unit takes advantage of the full torque capacity of the DT12, and its design will accommodate larger pumps without an additional support bracket, subject to a bending moment limit of 29.5 ft-lb maximum. Call us to confirm proper fit for your application. 
Features
Fits Detroit DT12 transmissions in Freightliner and Western Star Class 8 Cascadia and 5700 trucks
Solenoid-activated mechanical shift
0.97 internal ratio
Direct mount or companion flange output options
Capable of supporting larger pumps without a bracket (bending moment limit: 29.5 ft-lb max)
Utilizes the full torque capacity of the DT12 transmission
Tech Specs
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 |
