Willys AN Fitting O-Rings

AN fittings are a simple and effective way to plumb fluid systems in your car. This AN fittings install guide answers some of the more common questions pertaining to AN fittings and AN line.

Learn the proper steps in upgrading your air cleaner assembly to ensure clean air, allowing your engine to more easily make the power that it should.

Dick from Koul Tools shares a tip on how to properly seat the AN fittings using the Koul Tools device.

What fittings should you use with your brake or fuel system? What does AN and NPT stand for? All of these questions plus more will be answered in Speedway Motors' latest article about fasteners!

Learn what throttle and kickdown cables do, how to install them, and tips for troubleshooting issues like broken or stuck cables.

There are a lot of piston ring material types to consider for your next engine build. Our buyer’s guide will help you choose the right ones.

Tim M. takes us through troubleshooting some of the common causes of leaky banjo fittings and caliper fitment issues.

Piston rings may not be the most exciting part of an engine build, but knowing how to clock piston rings and how to install rings on a piston is critical to your engine performing properly.

Hose & Fitting

Check out this helpful piston ring style chart.