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25% Off Select Parts and Accessories
Receive 25% Off Your Online or In-Store Purchase. Use promotional code MMJ25 at checkout to receive discount. Not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included will be displayed in product search results and product detail pages. INCLUDES the following categories: Starters, Alternators, Fuel Pumps, Radiators, Shocks & Struts, Chassis, CV Axles, Batteries, Ignition, Window Motors, Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Headlamps and Bulbs. Excludes the following brands: Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner and BBK Performance. Valid online until 2:59 am EST on 5/1/17.

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  • Part #: 666|
  • SKU: 813897

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    • Copper Core electrode, Nickel Chromium Alloy side electrode for excellent heat dissipation & durability.
    • Resistor reduces radio frequency interference (RFI) and electrode erosion
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Autolite Copper Core Spark plug

Guaranteed to deliver quick starts, good fuel economy and smooth acceleration.
  • Copper Core electrode, Nickel Chromium Alloy side electrode for excellent heat dissipation & durability.
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
  • Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal
Since its inception, the Autolite brand has provided the automotive aftermarket and Original Equipment manufacturers the highest quality ignition products. As a leading supplier of spark plugs, ignition wire sets and Coil-on-Plug boots, the Autolite brand has the right ignition products for you, regardless of your vehicle make or model.


Autolite Copper Core Spark plug is rated 4.4 out of 5 by 7.
Rated 4 out of 5 by from nice service this product and nice service.
Date published: 2016-12-27
Rated 5 out of 5 by from Great Product For The Price An Awesome Spark Plug for the price
Date published: 2015-10-23
Rated 5 out of 5 by from quicker starts better than the champion plug
Date published: 2015-05-21
Rated 5 out of 5 by from Excellent Performance Tiny Price Resurrecting a 1993 F150 Supercab with the 351 engine. Truck was sitting for 4 years. I must admit, I had my doubts about such a plain vanilla plug, but after reading the write-up on the "six litre tune-up" on the F150 and FullSizeBronco Forums, I went for it. Installed MSD coil, distributor cap and rotor and ford racing wires and these plugs. Even prior to discovering fuel pump was bad (reading of zero at the fuel rail, so barely a trickle of gas getting through) the engine would fire right up using these plugs. If they are that good with all the problems this truck has, they must really be delivering a good spark. Will update once repairs are all complete.
Date published: 2015-05-20
Rated 4 out of 5 by from Spark Plug Good plug just what you would expect works just fine and good quality for the price
Date published: 2015-01-13
Rated 5 out of 5 by from AUTOLITE COPPER CORE SPARK PLUG Price and quality very good
Date published: 2015-01-09
Rated 3 out of 5 by from a good plug this spark plugs works as it should, using it for a small electric generator, and i am glad its an autolite.
Date published: 2014-10-28
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