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    • 3722418172.jpg

    MSD Iridium Spark Plug, 14mm .4375in Reach Tapered Seat, 4-Pack | 37224

    Vendor: MSD
    Part Number: 37224
    Save $2.78
    $22.25 $25.03

    Currently out of stock.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
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    Product DetailsFAQReviewsRelated Products

    MSD's iridium spark plugs are engineered to improve combustion efficiency for maximum power and durability. The iridium center tip promotes a stronger, more resilient spark, while a proprietary ceramic insulator forces the spark to jump across the gap to the ground electrode even under extreme cylinder pressure, for a more complete combustion event.

    Specifications:

    • Category: Ignition
    • Style: Iridium
    • Tip: Projected
    • Heat Range: 5
    • Reach: 0.4375 in
    • Seat Type: Tapered
    • Thread Size: 14mm
    • Plug Style Code: 6IR5Y
    • Quantity: 4-Pack
    • Resistor: Yes
    • Warranty: Manufacturer's Limited 1 Year Warranty
    • Part Number: 37224

    This is a clearance item; all sales are final.

    FAQ

    What thread size is this spark plug?

    It's a 14mm thread with a 0.4375-inch reach and a tapered seat.

    What is the center tip made of?

    The center tip is iridium for a stronger, more resilient spark.

    How many plugs come in this pack?

    It's sold in a 4-pack.

    Is this a final-sale clearance item?

    Yes, this is a clearance item and all sales are final.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy
    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy
    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

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    For any questions or concerns, please contact us — we’re always happy to help.

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