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Product Summary

326, 350, 389, 400, 421, 428, 455

    Key Specs

    BrandMSD

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    Details

    MSD Bronze Distributor gears are machined from quality AMPCO 45 aluminum bronze containing 5% nickel. This special combination creates high-strength gear teeth that are less prone to wear even with high-volume oil pumps.
    • Increased outer hardened layer thickness (RC 55-60).
    • Micro polished surface for smooth contact.
    • Proprietary formulated ductile iron.
    • Melonite QPQ coated reduces friction and initial wear.
    • Interstitial carbide concentration improves wear resistance and

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    Specifications

    KEY SPECS
    BrandMSD
    GENERAL
    Speedway Motors Catalog Part #547-85631
    GTIN Code085132856312