Autolite® 646 - Copper Spark Plug

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1991 Chrysler New Yorker
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Product Details

Chrysler New Yorker 1991, Copper Spark Plug (646) by Autolite®. With Resistor. OE Style. These spark plugs by Autolite are specially designed and manufactured to ensure quick starts, dependable performance, and smooth acceleration. The products are made of premium materials to ensure extreme durability, good conductivity, and great resistance to high temperatures and pressures inside the engine.

Specifications:

Electrode Tip Material: Copper
Ground Electrode Core Material: Copper
Resistor: Yes
Spark Plug Gap: Customizable
Spark Plug Thread Size: 0.551"
Spark Plug Reach: 0.750"
Wrench Diameter: 0.813"
Heat Range: 6
Seat Type: Gasket Seat
Quantity: 1 Piece

Features:

  • Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
  • Multi-rib insulator reduces danger of "flash-over"
  • One-piece terminal post adds strength
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
  • Cold-formed steel shell precision rolled threads
  • Full copper core electrode provides better performance in all conditions

The spark plug is the last step in the ignition circuit. It takes a voltage surge from the coil and creates a high voltage spark that ignites the compressed air fuel mixture within each cylinder. If everything operates properly, the engine runs efficiently providing maximum fuel economy and the lowest exhaust emissions. Spark plugs are available in different materials, heat ranges, reach, thread diameter, and seat type, with features to suit engine requirements. Always use the spark plug that is specified for your engine. If the wrong plug is used, it could come into contact with a piston or valve within the engine and break causing serious damage to the engine.

With these spark plugs by Autolite, you are guaranteed that they will not only fit perfectly but meet all the requirements of your engine as Autolite uses what is called a "rating engine" to match up OE plugs. Autolite engineers carefully measure OE spark plugs and then match the physical qualities with several Autolite plugs. Then they run the OE plug in their rating engine, which provides data that indicates the heat range of the OE plug. They use this data to precisely match every Autolite spark plug to both the heat range and dimensions of the OE product. Engineered, designed, and manufactured with professional care, these spark plugs meet all OE standards and specifications.

An innovation leader since 1936, Autolite® creates the highest quality ignition products for a wide variety of engines. Established in 1911, the company started manufacturing buggy lamps and became a thriving automotive parts manufacturer by the 1930's. Still, the first Autolite spark plug saw the world in 1936 and had instant success on the market. Today, the company is known as the manufacturer of America's best-selling spark plug and offers a number of spark plug series such as Autolite XP Xtreme Performance, Autolite Platinum, Autolite Revolution HT, Autolite Double Platinum, etc.

Brand:
Part Number:
646
UPC:
009100006462

Warranty Information

Iridium XP 7 - Year Limited Warranty

LIMITED WARRANTY: These Autolite® plugs are warranted to the original purchaser for the lifetime of the vehicle engine against plug failure due to electrode erosion or defects in materials and workmanship by Autolite®, a division of FRAM Group Operations LLC. Autolite® will, at its option, replace or refund the purchase price of the failed spark plugs.

Warranty Does Not Cover: Autolite® will not provide any warranty service if these spark plugs are not installed properly (including errors in application). Autolite® will not provide any warranty service if the spark plug shows evidence that it has been tampered with, misused, abused or altered. Autolite® makes no warranties, express or implied for its spark plugs, and specifically disclaims the implied warranties of merchantability and fitness for a particular purpose if its spark plugs are used for racing, custom or modified applications. Under no circumstances is Autolite® responsible for direct, incidental, special or consequential damages resulting from such uses of its products. Some states do not allow the exclusion or limitation of incidental, spe

Double Platinum 5 - Year Limited Warranty

LIMITED WARRANTY: These Autolite® spark plugs are warranted to the purchaser for the period of five years from the date of purchase against defects in materials and workmanship by Autolite®, a division of FRAM Group Operations LLC.

Warranty Does Not Cover: Autolite® will not provide any warranty service if these spark plugs are not installed properly (including errors in application) and maintained in accordance with service intervals recommended by the original equipment manufacturer. Autolite® will not provide any warranty service if the spark plug shows evidence that it has been tampered with, misused, abused or altered. Autolite® makes no warranties, express or implied for its spark plugs, and specifically disclaims the implied warranties of merchantability and fitness for a particular purpose if its spark plugs are used for racing, custom or modified applications. Under no circumstances is Autolite® responsible for direct, incidental, special or consequential damages resulting from such uses of its products. Some states do not allow the exclusion or limitation of incidental, special or consequential damages, so the above exclusion or limitation may not apply to you.

Platinum 4 - Year Limited Warranty

LIMITED WARRANTY: These Autolite® spark plugs are warranted to the purchaser for the period of four years from the date of purchase against defects in materials and workmanship by Autolite®, a division of FRAM Group Operations LLC.

Warranty Does Not Cover: Autolite® will not provide any warranty service if these spark plugs are not installed properly (including errors in application) and maintained in accordance with service intervals recommended by the original equipment manufacturer. Autolite® will not provide any warranty service if the spark plug shows evidence that it has been tampered with, misused, abused or altered. Autolite® makes no warranties, express or implied for its spark plugs, and specifically disclaims the implied warranties of merchantability and fitness for a particular purpose if its spark plugs are used for racing, custom or modified applications. Under no circumstances is Autolite® responsible for direct, incidental, special or consequential damages resulting from such uses of its products. Some states do not allow the exclusion or limitation of incidental, special or consequential damages, so the above exclusion or limitation may not apply to you.

Copper 2 - Year Limited Warranty

LIMITED WARRANTY: These Autolite® spark plugs are warranted to the purchaser for the period of two years from the date of purchase against defects in materials and workmanship by Autolite®, a division of FRAM Group Operations LLC.

Warranty Does Not Cover: Autolite® will not provide any warranty service if these spark plugs are not installed properly (including errors in application) and maintained in accordance with service intervals recommended by the original equipment manufacturer. Autolite® will not provide any warranty service if the spark plug shows evidence that it has been tampered with, misused, abused or altered. Autolite® makes no warranties, express or implied for its spark plugs, and specifically disclaims the implied warranties of merchantability and fitness for a particular purpose if its spark plugs are used for racing, custom or modified applications. Under no circumstances is Autolite® responsible for direct, incidental, special or consequential damages resulting from such uses of its products. Some states do not allow the exclusion or limitation of incidental, special or consequential damages, so the above exclusion or limitation may not apply to you.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

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In-House Experts We know our products
Guaranteed Fitment Always the correct part
Easy Returns Quick & Hassle Free

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