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    Sale!

    Dinan B48/B58/S58 Iridium Spark Plug - Heat Range 9 - 12mm x 26.5mm x 14mm (Flat) - SINGLE

    Vendor: Dinan
    Part Number: D640-0001
    Save $4.79
    Sale Price $19.14 Regular Price $23.93

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    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.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    Dinan Iridium Spark Plugs are an excellent upgrade for tuned, and even stock engines. Our spark plugs are made from Iridium - one of the strongest materials available. They last longer than other materials with higher melting points, run cooler, resist preignition, and even require less voltage to produce a strong spark. The iridium electrode with its copper core is harder and stronger than other materials, can dissipate heat more easily, and is better protected from melting, cracking, and other limitations found with standard plugs.

    • 152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum
    • Heat range 9 spark plug (Similar: Bosch 3, Brisk 10, Champion 4, Denso 27, and NGK 9)
    • Acceptable for high performance / tuned and stock vehicle applications alike
    • Optimized electrode design for hard to ignite fuels, such as ethanol
    • 1 step colder than OEM (Gen 1 B48, Gen 1/2 B58, & S58)
    • Cooler operating temperature than stock plugs
    • Resists preignition better than stock plugs
    • An excellent match for Dinan ignition coils
    • Stronger than copper and platinum
    • Lower required supplied voltage
    • Insulator Material: Ceramic
    • Projected insulator design
    • Thread diameter: 12mm
    • Install Torque: 17 Nm
    • Thread reach: 26.5mm
    • Hexagon: 14mm Bi-Hex
    • Supplied Gap: 0.5mm
    • Terminal Type: Cup
    • Seat Type: Flat
    • Made in the EU

    This Part Fits:

    Year Make Model Submodel
    2021-2024 BMW 228i Gran Coupe Base
    2020-2024 BMW 228i xDrive Gran Coupe Base
    2017-2026 BMW 230i Base
    2017-2021,2023-2026 BMW 230i xDrive Base
    2021-2024 BMW 330e Base
    2022-2024 BMW 330e xDrive Base
    2017-2024 BMW 330i Base
    2017-2019 BMW 330i GT xDrive Base
    2017-2024 BMW 330i xDrive Base
    2016-2018 BMW 340i Base
    2017-2019 BMW 340i GT xDrive Base
    2016-2018 BMW 340i xDrive Base
    2017-2026 BMW 430i Base
    2017-2020,2022-2026 BMW 430i Gran Coupe Base
    2017-2026 BMW 430i xDrive Base
    2017-2020,2023-2026 BMW 430i xDrive Gran Coupe Base
    2017-2020 BMW 440i Base
    2017-2020 BMW 440i Gran Coupe Base
    2017-2020 BMW 440i xDrive Base
    2017-2020 BMW 440i xDrive Gran Coupe Base
    2022-2023 BMW 530e Base
    2022-2023 BMW 530e xDrive Base
    2017-2023 BMW 530i Base
    2017-2023 BMW 530i xDrive Base
    2017-2023 BMW 540i Base
    2017-2023 BMW 540i xDrive Base
    2018-2019 BMW 640i xDrive Gran Turismo Base
    2016-2022 BMW 740i Base
    2017-2022 BMW 740i xDrive Base
    2020-2026 BMW 840i Base
    2020-2026 BMW 840i Gran Coupe Base
    2020-2026 BMW 840i xDrive Base
    2020-2026 BMW 840i xDrive Gran Coupe Base
    2023-2026 BMW M2 Base
    2020-2024 BMW M235i xDrive Gran Coupe Base
    2017-2021,2023-2026 BMW M240i Base
    2017-2026 BMW M240i xDrive Base
    2021-2026 BMW M3 Base
    2021-2026 BMW M3 Competition
    2022-2026 BMW M3 Competition xDrive
    2020-2024 BMW M340i Base
    2020-2024 BMW M340i xDrive Base
    2021-2026 BMW M4 Base
    2021-2026 BMW M4 Competition
    2022-2026 BMW M4 Competition xDrive
    2023 BMW M4 CSL
    2021-2024 BMW M440i Base
    2022-2024 BMW M440i Gran Coupe Base
    2021-2024 BMW M440i xDrive Base
    2022-2024 BMW M440i xDrive Gran Coupe Base
    2017-2022 BMW X1 sDrive28i
    2016-2022 BMW X1 xDrive28i
    2019-2022 BMW X2 M35i
    2018-2023 BMW X2 sDrive28i
    2018-2023 BMW X2 xDrive28i
    2020-2024 BMW X3 M
    2020-2022 BMW X3 M Competition
    2018-2024 BMW X3 M40i
    2019-2024 BMW X3 sDrive30i
    2018-2024 BMW X3 xDrive30i
    2020-2025 BMW X4 M
    2020-2022 BMW X4 M Competition
    2019-2025 BMW X4 M40i
    2019-2025 BMW X4 xDrive30i
    2020-2023 BMW X5 sDrive40i
    2019-2023 BMW X5 xDrive40i
    2021-2023 BMW X5 xDrive45e
    2020-2021 BMW X6 sDrive40i
    2020-2023 BMW X6 xDrive40i
    2019-2023 BMW X7 xDrive40i
    2022-2026 BMW Z4 M40i
    2020-2021 BMW Z4 sDrive M40i
    2019-2024 BMW Z4 sDrive30i
    2007-2024 Mini Cooper Base
    2015-2024 Mini Cooper John Cooper Works
    2021 Mini Cooper John Cooper Works GP
    2014-2024 Mini Cooper S
    2017-2019 Mini Cooper Clubman ALL4
    2016-2019 Mini Cooper Clubman Base
    2017-2024 Mini Cooper Clubman John Cooper Works ALL4
    2016-2024 Mini Cooper Clubman S
    2017-2024 Mini Cooper Clubman S ALL4
    2017-2024 Mini Cooper Countryman ALL4
    2011-2024 Mini Cooper Countryman Base
    2018-2024 Mini Cooper Countryman John Cooper Works ALL4
    2017-2024 Mini Cooper Countryman S
    2017-2024 Mini Cooper Countryman S ALL4
    2018-2024 Mini Cooper Countryman S E ALL4
    2021-2022 Toyota GR Supra A91 Edition
    2020-2026 Toyota GR Supra Base
    2020-2026 Toyota GR Supra Premium
    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.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

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

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