• piston ring guide

    An engine is a simple mechanical device, an air pump really, that uses pistons and valves to pull air in and push air out. The pistons in an engine block must be sealed inside each cylinder in order for the process to be efficient. Because the pistons travel through the stroke millions of times throughout…

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  • How to Solder Wires

    When it comes to working on your vehicle’s electrical system, even seasoned professionals get frustrated. Intermittent problems, under-dash harnesses that look like spaghetti, and years of patches and “get it home” fixes, usually just make things worse. In our experience, about 90% of all electrical issues turn out to be a bad connection. Crimp terminals…

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  • CRC 1Tank fuel system cleaner

    As your vehicle ages, buildup inside your engine’s fuel system increases. Over time, this buildup can seriously reduce the power and efficiency of the engine. This is mainly due to the varying quality of the fuel. Name-brand gasoline brands such as Texaco, Conoco, etc, use different additives and formulations to reduce the contaminants, but generic…

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    Beginning in the 1970s, GM started using a specialized weather-resistant terminal design called “Weather Pack”. This modular terminal system was designed to seal the wires and terminals from corrosion. These are very common in vehicles built from the 1970s up to the mid 90s. In the 1990s, Weather Pack terminals gave way to the upgraded version…

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  • How to clean a mass air flow (MAF) senson

    Most modern EFI engines have a Mass Air Flow (MAF) sensor located in the air intake of the engine. This is the device that measures how much air is coming into the engine so that the computer can determine how much fuel it needs to inject. While the MAF sensor does not directly measure the…

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  • how to use Sea Foam

    Over time, the internals of your engine get clogged up with all kinds of nasty stuff. Inside the crankcase, where the oil lives, varnish and tar build up on the surfaces of the pistons, rings, lifters and in the oil galleys that supply the oil to all the components. This lowers the engine’s ability to…

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  • how to use Bondo properly

    There is not a more maligned automotive product than “bondo”. Plastic body filler is most often referred to by the brand name “Bondo” (made by 3M), and its bad reputation comes from decades of poor application and misuse. Every high-end custom car or restoration has body filler on it. Using it on your daily driver or project…

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  • how to repair an air hose

    Just when you expect it the least, POP!, your air hose springs a leak. Hopefully it doesn’t just blow apart and the end connected to the compressor whips at your legs like an angry cobra, but rather a small leak. Regardless of the situation, you still need to fix it. You could go out and…

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  • power steering flush

    Does your power steering system moan and groan when you are trying to pull into a parking space? Does your driveway have the tell-tale dark spots of a power steering leak? Or are you just wanting to head off these problems before they take hold in your car? If you answered yes to any of…

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  • how to remove a rusted bolt

    Rusted bolts stink. It doesn’t matter if the car is just a few years old or 50, there will always be rusted or seized nuts and bolts somewhere on the car. Murphy’s Law dictates that you will find those bolts when you are in the biggest hurry to complete a project. There are many ways…

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More than 90 years ago, the National Automotive Parts Association ("NAPA") was created to meet America’s growing need for an effective auto parts distribution system.

Today, 91% of do-it-yourself customers recognize the NAPA brand name.

We have over 6,000 NAPA AUTO PARTS Stores nationwide serving all 50 states with a unique inventory control system that helps you find the exact part that you need.