1986 Mack Midliner Series Emission Control
- Replacement - Oxygen SensorMack CS200P Mid-Liner / MS200P Mid-Liner 1986, Oxygen Sensor by Replacement. When an oxygen sensor fails, you're facing poor fuel economy, rough running, and even potential catalytic converter damage. The Replacement brand steps in with...Direct-fit replacementOE-level function and durability$9.80