There are many different types of vacuum adapter (or adaptor) to take note of. A vacuum adapter could refer to the DC connector that powers your vacuum cleaner or the automotive vacuum hose adaptor jointware of your car for an intake manifold or engine vacuum pump. However, the one you're probably looking for is the hose or pipe extension adapter used for wet/dry vacuums and emissions fittings for automobiles.
Things to Consider
Here are some recommendations you should follow when buying an adapter for your car vacuum.
- Making Sure the Adaptor Fits by Specs: Fitment is a main concern even when it comes to buying a so-called universal-fit adapter. You could purchase an adapter kit or acquire a standalone adapter for a hose or a pipe. You should pay attention to specs to ensure proper fits as well (i.e., an adapter that fits over 2½-inch exhaust ports and can be clamped, stretched, or cut to fit any hose between ? inches to over 2 inches).
- Making Sure the Adapter Fits by Hose Clamps: Non-vehicle specific adaptors can be made to fit your car through hose clamps and clips. You could even tape it up or seal it. Naturally, it'd be better to get a better fitting adapter, in which case you should hunt down OEM-standard or OEM refurbished duplicates of the vacuum adapter you're attempting to replace. The clamp is mostly applied on the hose to ensure smooth vacuum operation.
- PVC Vinyl, Aluminum, and Stainless Steel: These adapters also come in various material compositions. They're either made of plastic, brass, aluminum, or stainless steel. Heat-resistant PVC vinyl is the most affordable adapter type, stainless steel is the toughest, aluminum is the most lightweight and found is all modern cars, and brass is a good alternative to stainless steel in terms of non-corrosive and tough vacuum pump performance.
- Types of Vacuum Adapter by Shape: Vacuum adaptors come in a variety of shapes, such as the l-shape, f-shape, y-shape, t-shape, and straight. Meanwhile, the vacuum tubing for any given adapter type is naturally sold separately. Knowing what type of vacuum adaptor in your engine that needs replacement can help you narrow down your search. For example, if it's a straight adapter then you won't have to search for other shapes.
- Types of Vacuum Adapters by Hose Type: The hard cuff adaptors you'll see in ecommerce sites are typically used as hose connectors that fit 12 to 25 feet hoses. Other adapters offer friction fit barbs that push the hose right into the ID of the vacuum hose. There are also multipurpose intake manifold vacuum fittings that fit ?-inch 90-degree hoses and can be used for fuel lines and intake manifold applications as well as vacuum pumps.
There are multiple ways to get that adapter for your vacuum. If you're on the lookout for a hose or tubing adapter instead, there are multiple kits available with the caveat that it can quite tricky to find the ones that specifically fit your make and model of vacuum (otherwise, you'll have to purchase hose clamps to tighten up loose connections). Clarify with your mechanic the type of adapter your car needs replacing and ask for the product number to make it easier to search for it online.