Genuine Mercury Zephyr Spark Plug

Ignition Spark Plug
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  • Mercury Zephyr Spark Plug - ASF-42-C
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    Mercury Zephyr Spark Plug

    Part Number: ASF-42-C
    $4.77 MSRP: $7.60
    You Save: $2.83 (38%)
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    Product Specifications
    • Replaced by: ASF-42C-X
    • Warranty: This genuine part is guaranteed by Ford's factory warranty.
    Fits the following Vehicles:
    • 1980-1982 Mercury Zephyr | 4 Cyl 2.3L, 6 Cyl 3.3L, 8 Cyl 4.2L | 3AT C3, 3AT C4, 3AT C5, 4MT

Mercury Zephyr Spark Plug

Spark Plug is an important feature of Mercury Zephyr autos whereby it ignites the mixture of air and fuel in the chamber of combustion. This works through passing high voltage from the ignition system and therefore producing a fire that causes combustions and leading to powering of the pistons in the vehicle. The spark plug which has a metallic outer shell has two kind of electrodes, one central electrode and the other side one, and has an intermediate ceramic insulating layer. Copper/Nickel, Platinum, double platinum and Iridium have been used in different Mercury Zephyr Models through the years. Each type is characterized with the difference in durability and work; for example, while both types are produced in the platinum and copper/nickel plugs the platinum plugs are known to last much longer and to have much lower tendency to build carbon deposits. Two-pins plugs are for use with Distributorless Ignition Systems (DIS); iridium ones - for example, OEM iridium - are even longer-lived. Spark plug is crucial for the efficiency and performance of the engine; different recommendations depending on the design and kind of ignition system employed in the vehicle.

We provide a wide range of Mercury Zephyr Spark Plug at the best prices possible. If you need Mercury Zephyr Spark Plug, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your door step with a fast delivery service.

Mercury Zephyr Spark Plug Parts Questions & Experts Answers

  • Q: How to remove and install spark plug on Mercury Zephyr?
    A: Before removing any spark plug wires, ensure they are properly numbered as to their original location. Mark the wires with tape if necessary or remove only one plug at a time so that the wires are always in order. Remove each spark plug wire by grasping the molded boot, twisting it slightly and then pulling it away from the end of the spark plug. Do not pull on the wire itself because it could separate the connector inside the boot. If this happens, the wire must be replaced with a new one. Using an insulated spark plug socket, loosen each spark plug about two turns and carefully clean around the plug hole so that no dirt can enter when the plug is removed. Fully remove each of the spark plugs by hand. Inspect the firing ends of the plugs for deposits and electrode condition. Inspect the insulators for cracks and discoloration. If the plug appears usable, clean it with a wire brush to remove carbon deposits from the electrodes and threads. Use a small file to clean the electrode surfaces. Set the spark plug electrode gap to the setting on the emission control decal by bending the outer electrode, never the center one. Position each plug into its cylinder head port and thread into the hole by hand. Fully tighten each of the plugs to the proper torque. Using a clean standard screwdriver, apply a thin film of silicone grease on the entire interior surface of the spark plug wire boot. Push each of the spark plug wires into position on the ends of the plugs, again using a twisting motion to fully seat the boots. Make sure that the wires are re-installed in their original positions. Uncover or re-connect the battery.

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