Starter Motor 8R9-81890-00 B3J-81890-00 – Fits Yamaha YZ450F WR450F YZ450 WR 450F Dirt Bike

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US$93.00

ITEMNO: STG93843

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  • PRODUCT DETAILS

    Starter Motor 8R9-81890-00 / B3J-81890-00 – Replacement for Yamaha WR450F / YZ450F / YZ450FX

    The Starter Motor 8R9-81890-00 / B3J-81890-00 is a premium aftermarket replacement designed to meet OEM specifications for Yamaha WR450F, YZ450F, and YZ450FX motorcycles. With durable construction, strong cranking power, and precise fitment, it ensures reliable starting performance for off-road, motocross, and trail motorcycles. Perfect for replacing worn or weak OEM starters.


    Product Specifications

    ItemSpecification
    Product TypeStarter Motor
    Voltage / Power12V 
    Replacement Part Numbers8R9-81890-00, B3J-81890-00
    ConditionAftermarket Replacement
    CompatibilityYamaha WR450F, YZ450F, YZ450FX (2019–2023)
    Fitment TypeDirect OEM Replacement
    ApplicationOff-Road, Motocross, Trail Bikes
    Weight1.2 KG

    Fitment Details

    ModelYear / Variant
    Yamaha WR450F2019 WR450FK, 2020 WR450FL, 2021 WR450FM (BDB2), 2022 WR450FN (BDB6), 2023 WR450FP (BDBA)
    Yamaha YZ450FX2019 YZ450FXK, 2020 YZ450FXL1, 2021 YZ450FXM (BEX1), 2022 YZ450FXN (BEX5), 2023 YZ450FXP (BEX9)
    Yamaha YZ450F / Monster Edition2020 YZ450FLGY / YZ450FLL, 2021 YZ450FMME (B2W9), 2021 YZ450FML (B2W5), 2022 YZ450FNL (B2WC), 2022 YZ450FNME (B2WG)
  • PRODUCT HIGHLIGHTS

    Product HighlightsDescription
    Direct OEM FitDesigned to meet OEM specifications for Yamaha WR450F, YZ450F, and YZ450FX motorcycles.
    Strong Cranking PowerProvides reliable and consistent starting performance for motocross and trail bikes.
    Durable ConstructionLong-lasting aftermarket build to replace worn or weak OEM starters with precision fit.

  • SHIPPING

    Item Details
    Processing Time Orders are processed within 1-3 business days after payment confirmation
    Shipping Methods DHL/UPS/ FedEx/ TNT/ Air Freight/ Sea Freight
    Estimated Delivery Time Express shipping: 3-7 business days, depending on destination
    Packaging Export-standard cartons with protective inner packing
    Tracking Tracking number will be provided once the order is shipped
    Shipping Cost Calculated based on weight, dimensions, and destination

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    WARRANTY POLICY

    All new aftermarket parts come with a 1-Year warranty. Quality is the first thing we consider. Check out our Warranty Assistance for more details.

    SHIPPING POLICY

    We offer express and standard shipping options to ensure your off-road machine gets back in action—fast and reliably. For more details, please visit our Shipping Policy .

    EASY RETURN POLICY

    We prioritize your satisfaction. If your order doesn't meet your expectations within 90 days, you may be eligible for a refund. See our Easy Return Policy for details.