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Make sure this part fits

Lexus 12304-31040 Bracket Sub-Assembly, Engine

2016-2022 Lexus 1230431040

Customer Questions & Expert Answers (3)
12304-31040 Lexus Bracket Sub-Assembly, Engine Illustration 1 of 1
12304-31040 Lexus Bracket Sub-Assembly, Engine Illustration 1 of 1
  • Part Description
    Bracket, Engine Mounting, LH(For Transverse Engine)
  • Part Name Code
    12304
  • Position
    Driver Side
  • Manufacturer
    Lexus
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  • Specifications
  • Fitment
  • Q&A

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  • Product Specifications

    BrandGenuine Lexus
    Part Name Code12304
    Manufacturer Part Number12304-31040
    Part DescriptionBracket, Engine Mounting, LH(For Transverse Engine)
    Other NamesSide Mount Bracket
    Item Weight2.90 Pounds
    PositionDriver Side
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerLexus
    SKU12304-31040
    WarrantyThis genuine Lexus part is guaranteed by Lexus's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65

  • Vehicle Fitment

    Year Make Model Trim & Engine Important vehicle option details
    2016-2022 Lexus RX350STD|6 Cyl 3.5L2GRFKS; GGL25L-AWZGBA, GGL25L-BWZGBA
    2018-2022 Lexus RX350L6 Cyl 3.5L2GRFKS; GGL21L-ARZGBA, GGL26L-ARZGBA
    2016-2022 Lexus RX450hSTD|6 Cyl 3.5L2GRFKS; GGL25L-AWZGBA, GGL25L-BWZGBA
    2018-2022 Lexus RX450hL6 Cyl 3.5L2GRFKS; GGL21L-ARZGBA, GGL26L-ARZGBA

  • Customer Questions & Expert Answers

    Q:
    I just want to confirm that this is the part I need to replace.
    A:
    You can Select Your Vehicle to check if 12304-31040 fits your vehicle.
    Posted and answered by Lexus Parts Specialist Bernardo
    Q:
    What should be done if movement is noted in the Engine Mounts for the 2017 Lexus RX350? Posted by Saul L.
    A:
    If movement is noted, lower the engine and tighten the mount fasteners. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Lexus Parts Specialist Tommy / Nov 21, 2025
    Q:
    What should you do if several Engine Mounts need replacement for the 2018 Lexus RX350? Posted by Vaibhav P.
    A:
    If several mounts need replacement, only replace one at a time and tighten them as you go. Do not remove all the mounts at once. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Lexus Parts Specialist Luis / Feb 10, 2026

Genuine Lexus Part 12304-31040, the Right Choice

Getting part # 12304-31040 Bracket Sub-Assembly, Engine helps restore factory performance. It is also referred to as Engine Mount. This part works with 2016-2022 RX350, 2016-2022 RX450h, 2018-2022 RX350L, 2018-2022 RX450hL. Purchasing OEM parts for your vehicle should be your top priority. Manufactured by Lexus, they are built to meet high standards and utilize only top-notch materials for decent reliability and durability.

LexusPartsNow.com offers dependable parts and accessories including 1230431040 Bracket Sub-Assembly, Engine. Visit our website for the most preferential OEM parts online. Each part is backed by the OEM manufacturer warranty, confirming its high level of quality. We deliver all our parts fast and they come with a straightforward return policy.

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