Motorcycle Petcocks

Aftermarket Motorcycle Petcock & Fuel Valves for Sale

A motorcycle petcock is simply the fuel valve that allows you to turn on or shut off the flow of gasoline from your gas tank to your carburetor. The funny name comes from the two words. “Pet” refers to “small” as in French “petit”. The term "cock" means "to block" or "stop." This is where the term fuel petcock valve came from.

How to choose the right Petcock Sizes for your motorcycle?

There are a number of different fuel petcock valve sizes available. Late model Harley-Davidsons typically use a 22mm petcock, which are available in a variety of price ranges depending on the quality, fit and finish and brand. The 22mm motorcycle petcock bung is also found on a variety of custom gas tanks such as the Narrow Frisco Sporty Gas Tank and the Blackbird Legacy Gas Tank for 1982-2003 Harley-Davidson Sportsters®.

Many custom and aftermarket gas tanks such as the Narrow Alien Gas Tank and Super Narrow Frisco Mount Sportster® Gas Tank also use a 1/4 inch NPT or 3/8 NPT petcock. NPT stands for National Pipe Thread, and it is a tapered thread that seals as you tighten the motorcycle gas tank petcock into the threaded fitting on your gas tank.

Lowbrow Customs also makes motorcycle petcock adapter nuts in both brass and chrome and allow you to adapt your 22mm petcock bung to accept either a 1/4 inch NPT or 3/8 inch NPT petcock.

Types of Motorcycle Petcocks

Standard motorcycle fuel petcocks and universal fuel petcocks have two positions: on and off. Some motorcycle fuel petcocks offer a reserve function. A petcock that has reserve has a small tube inside the mesh filter that sits up higher than the bottom of your gas tank.

If you have your petcock in the ON position while riding and your bike starts sputtering as you run out of gas, you can simply turn your petcock to the reserve position and use the bit of reserve gasoline left in your tank. Hopefully there is enough to get you to a fuel station. A motorcycle fuel petcock with a reserve setting gives a bit of peace of mind to those who are riding around with smaller gas tanks. You could watch our reviews video to choose the best motorcycle petcock for your bikes.

Find the Perfect Petcock for Your Harley-Davidson Motorcycle at Lowbrow Customs

At our online store, we offer a wide selection of motorcycle petcocks, including options specifically designed for Harley-Davidson motorcycles. Whether you need a petcock for Harley Davidson or a universal fuel petcock, we have the right solutions to meet your needs.

Our petcocks for Harley Davidson come in various sizes, materials, and finishes to ensure a perfect fit for your motorcycle. We understand the importance of quality, which is why we provide products that deliver reliable performance and precise fuel control.

Choose from our range of 22mm petcocks, commonly used in late model Harley-Davidsons, or explore our selection of 1/4 inch NPT or 3/8 NPT petcocks, suitable for many custom and aftermarket gas tanks. We also offer motorcycle petcock adapter nuts in brass and chrome, allowing you to adapt your 22mm petcock bung to accept either a 1/4 inch NPT or 3/8 inch NPT petcock.

Invest in a High-Quality Fuel Petcock Valve

When it comes to your motorcycle's fuel system, a reliable fuel petcock valve is essential. Our motorcycle fuel petcocks provide optimal fuel flow control, ensuring efficient performance and smooth operation of your carburetor.

Whether you ride a Harley-Davidson or another brand, our universal fuel petcocks are designed to meet the needs of various motorcycles. With two positions, on and off, our standard and universal petcocks offer straightforward functionality.

For added convenience, consider a motorcycle fuel petcock with a reserve setting. This feature provides peace of mind, especially for riders with smaller gas tanks. When you run low on fuel while riding with the petcock in the ON position, switching to the reserve setting allows you to utilize the remaining reserve gasoline and reach the nearest fuel station safely.

Browse our extensive selection of motorcycle petcocks and fuel valves for sale. With our diverse range of options and expert guidance, you can find the perfect fuel valve to enhance the performance and reliability of your motorcycle's fuel delivery system.