This high-quality new clutch booster fits CF75, CF85 and XF95 trucks with OEM numbers 628450AM, 1346863, 1443531 and 1327940. It is a key component of the clutch pneumatic system to lighten pedal operation and enable smooth gear changes. Built with high-strength materials and precise internal seals, it delivers stable pressure output and anti-leakage performance. Strictly made to OEM specifications, it is a perfect replacement for worn or faulty clutch boosters.