Shop now and get Free Value Shipping on most orders over $49 to the
contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.
Enjoy our FREE RETURNS
We want to ensure that making a return is as easy and hassle-free as possible! If for any
reason you are not satisfied with your purchase, simply return the item within 30 days of
receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.
Please Enable Your Browser's Cookies Functionality
Cookies are not currently enabled in your browser, and due to this the functionality of our site will be severely restricted.
Web browser based cookies allow us to customize our site for you, save items in your cart,
and provide you with a great experience when shopping OpticsPlanet.
Your privacy is important to us, and any personal information you supply to us is kept strictly confidential.
If you cannot enable cookies in your browser, please contact us — we are always here to help!
JavaScript is blocked by AdBlocker or ScriptBlocker
We're sorry - it looks like some elements of OpticsPlanet are being disabled by your AdBlocker.
Unfortunately we are unable to offer our excellent shopping experience without JavaScript.
Please add "opticsplanet.com" and "https://opl.0ps.us/assets-be0390d3f30/" to whitelist,
or disable AdBlocker for this site (please note that we do NOT feature any annoying ads on this website).
Thanks!
Your Browser is Outdated
Unfortunately, we are unable to provide an excellent shopping experience on your browser because it lacks modern functionality needed for us
to provide a fast, secure, and enjoyable experience. If you cannot upgrade your browser or use an alternative device to visit us,
please contact us at +1-800-504-5897 and we'll be happy to assist you over the phone!
Product Info for NGK Spark Plugs 4172/5100.473 4172 Spark Plug - BR8ECS
Ideal for all of your ignition system needs, the NGK Spark Plugs Spark Plug - BR8ECS 4172/5100.473 is an effective means for ensuring you always have a working wire in your toolbox. These Tool Accessories from the experts at NGK Spark Plugs are designed to handle a much wider heat range than regular spark plugs. Plus, the high alumina ceramic construction and electrical insulation of the NGK BR8ECS Spark Plug leads to a longer plus life. For a reliable and efficient spark plug that you can count on over the lifetime of your vehicle, pick up the NGK Spark Plugs Spark Plug - BR8ECS.
Features of NGK Spark Plugs 4172/5100.473 4172 Spark Plug - BR8ECS
Designed to operate over a much wider heat range than ordinary plugs, Resists carbon buildup and pre-ignition, High alumina ceramics for better heat transfer and electrical insulation, Solid copper core and nickel tipped electrode provide a longer plus life, Patented triple gasket sealing process eliminates the possibility of combustion gas leakage