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Auto Parts Gallery - Electrical

What is it? FS2331 3/16" hard plastic vacuum tubing. What's it used for? On today's late model cars and trucks, vacuum-controlled components are often connected to this style of vacuum line. What was wrong with the old style neoprene vacuum hose? The new style vacuum hose is less susceptible to pinching and more resistant to underhood contaminants like fuel vapors. What type of components use this type of vacuum line? EGR valves, fuel pressure regulators, engine management valves and MAP sensors, to name just a few.

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