4473014050 Toyota VALVE ASSY, VACUUM CHECK(FOR BRAKE), Price: 19.49$, Weight: 0.06kg
| Make | Number | Name | Availability | Weight, kg | Ship in, Days | Price |
|---|---|---|---|---|---|---|
Toyota |
4473014050 |
VALVE ASSY, VACUUM CHECK(FOR BRAKE) |
4 |
0.06 |
2-3 |
19.49$ |
Brake Booster Vacuum Check Valve
Restore confident stopping power with this OE-grade one-way valve for the vacuum-assisted brake system. It keeps reserve vacuum inside the booster so your pedal feels light, consistent, and responsive in everyday driving and emergency stops.
Why it’s needed ✅
The brake booster relies on steady vacuum to multiply pedal force. This valve preserves that vacuum when the engine is off, under wide-open throttle, or during sudden deceleration. Result: shorter, safer braking with less effort.
How it works ️
Inside is a precision seat and spring-loaded poppet that allows flow toward the booster, then instantly seals to prevent backflow to the intake. Fuel- and heat-resistant body, tight barbs, and OE-style grommet ensure a leak-free connection in the vacuum line.
If it’s broken ⚠️
Expect a hard brake pedal, longer stopping distance, hissing from the hose, rough idle when braking, and weak assist after the engine is switched off. Continued driving can strain the booster diaphragm and increase risk in panic stops.
Fitment & quality
Designed for Toyota models using a vacuum brake booster. Direct swap, no mods. Meets OEM specs for flow, crack pressure, and sealing.
Tech tips
Match hose diameter, replace brittle lines, and observe the orientation mark—admits vacuum into the booster, blocks return flow. Quick test: air passes one way only. Always check for leaks after install.