ACDelco® 55564748 - Professional™ Iridium Spark Plug

13 reviews|Item # mpn4830663223
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    Manufacturer
    $15.37
    In Stock (242)
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    Vehicle Fitment

    Cadillac

    Specifications

    Resistor Plug
    Yes
    Center Electrode Material
    Iridium
    Thread Reach
    1.043"
    Hex Size
    16 mm
    Hex Size
    3/5"
    Ground Electrode Quantity
    1
    Gap
    0.039"
    Spark Plug Seat Style
    Conical
    Heat Range
    7
    Thread Diameter
    0.551"
    Resistance
    3-7.5 kOhm
    Center Electrode Core Material
    Copper
    Ground Configuration
    Single
    Ground Electrode Core Material
    Nickel Alloy
    Ground Electrode Tip Design
    Single Prong Electrode

    Features

    • Ribless insulator that improves the plug-to-boot seal
    • Tapered center wire electrode with a platinum pad reduces the firing diameter and helps improve the firing efficiency by concentrating and directing energy needed to fire the plug with less voltage
    • Solid state suppressor with two-piece glass and brass seal helps reduce radio frequency interference, meters spark plug energy to help provide long electrode life and seals against compression leakage
    • Reduced sparking voltage
    • Greater corrosion protection
    • Longer life and improved efficiency

    Product Details

    Professional™ Iridium Spark Plug (55564748) by ACDelco®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even better than the part your vehicle was manufactured with. This product is made from premium materials to serve you for years to come.

    ACDelco is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs. All products by ACDelco are made with expert care and created by professionals to meet all your requirements. The company does not accept compromises when it is going about quality, so you can be sure that all products have only first-rate quality. With many years of manufacturing experience, ACDelco is the name you can trust.

    ACDelco® - Car Maintenance GuideACDelco® - Product Line ApplicationsACDelco® - Professional Iridium Spark Plug FeaturesACDelco® - WarrantyAdditional InformationFAQ
    Brand:
    ACDelco
    Part Number:
    55564748
    UPC:
    707773167557

    Reviews

    (13)
    Only authorized customers can leave a review on our website. We would love to know what you like or dislike about the product. Share your opinion on product quality, appearance, installation, and other characteristics.
    /5
    1-10 of 13 Reviews
    5 of 5
    Excellent Iridium Spark Plugs
    Installed on my 2012 Chevy Avalanche despite filament table not being updated for this year. Pre-gap was perfect on all 8 plugs and installed easily. GMRebates.com has a rebate til the end of Sept, but need their part number on the invoice. Contacted customer support by email, and they promptly sent me the required document. Their price on these plugs was much better than other sites. Very good shipping and response times despite covid challenges.
    Posted by Mark G (Martin, TN) / April 13, 20202010 Chevy Avalanche
    5 of 5
    ACDelco Professional Irdium Spark Plugs
    My Tahoe had a miss while idling. I need plugs and wires since I had 150,000 miles on this vehicle. I found the recommended plugs at TRUCKiD for $2 less per plug than any local store. I checked and found that I could get a $3 rebate on each plug as well. Package had 4 boxed plugs in each set of two. When time came to install the spark plugs, I was amazed that each of the 8 plugs were already set to the .040 gap recommended for my vehicle. I didn't have to adjust any of them. One of the old plugs that I removed from my Tahoe had a hair line crack in the area that would be stressed from adjusting the gap. I feel confident these plugs will give me long life without any problems. I did change the wires too.
    Posted by James (Hartselle, AL) / February 13, 20182009 Chevy Tahoe
    5 of 5
    Bought Inspiration For My Truck Performance
    It made my 2009 Canyon run like a tiger champ. Iridium is known to be what the best plugs are made of. If you like having the best plugs per specification, this is your plug. I selected a reputable seller who offered good price.
    Posted by Kevin (Lakeland, FL) / September 02, 20162009 GMC Canyon
    5 of 5
    Spark Plugs
    Perfect gm original equipment
    Posted by Robert (Kennesaw, GA) / April 29, 20242014 Cadillac ATS
    4 of 5
    Spark Plugs
    Worked great.
    Posted by Johnny (Proctor, AR) / September 25, 20191976 Pontiac Grand Prix
    5 of 5
    Double Platinum Plugs
    I was very satisfied with the purchase price of these plugs the ease of installation, car is running like a dream after installation.
    Posted by Marvin (Minden, LA) / April 20, 20172003 Chrysler PT Cruiser
    5 of 5
    Plugs
    Refreshing replacement of OE plugs for my Outlander Sport. Feel no difference comparing them to the Bosh's plugs. Quality of the plugs is good enough.
    Posted by Rolando (Cicero, NY) / September 10, 20162005 Dodge Dakota
    5 of 5
    ACDelco
    New plugs has improved MPG and made driving smoother.
    Posted by Douglas Jeffrey (Milwaukee, WI) / August 18, 20162008 Buick Lacrosse
    5 of 5
    Good
    Fitment is perfect. These plugs are perfect and inexpensive. Will definitely buy them again.
    Posted by Sheryll (Ridgewood, NY) / August 17, 2016
    5 of 5
    Best Plugs
    I've tried a lot of spark plugs since 1995, but these are the best for my vehicle. I am not planning to get rid of it yet, so bought some more plugs.
    Posted by Stefan (Pittsburgh, PA) / August 02, 20162009 Dodge Caliber

    Questions and Answers

    (0)
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