Lexus LS430 Radiator Cap

Your Lexus LS430 will be happy to know that the search for the right Radiator Cap products you’ve been looking for is over! Advance Auto Parts has 3 different Radiator Cap for your vehicle, ready for shipping or in-store pick up. The best part is, our Lexus LS430 Radiator Cap products start from as little as $9.52.

When it comes to your Lexus LS430, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Radiator Cap product and part brands so you can shop with complete confidence. Some of our top Radiator Cap product brands are Carquest Premium and Autopart International Inc. We’re sure you will get the right product to keep that LS430 running for a long time.

We even have reviews of our OEM and aftermarket Radiator Cap products to help you buy with confidence. Hear from other customers via the 780 reviews on parts for your Lexus LS430.

Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Radiator Cap products for your LS430, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!

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Radiator Cap for a Lexus LS430

Use the fitment form at the top of the page to select your exact year and engine type for your Lexus LS430.

  • Radiator cap

    Carquest Premium - Radiator cap (Part No. 10242)

    Description
    Manufactured to meet all OEM specifications. Designed to be easy to install and remove. Manufactured from high quality components with proper relief and vacuum valves. Quality tested to stand up to even the most demanding automotive cooling systems.

    Product Features:
    • Maintains proper cooling system pressure
    • Easy installation and removal
    • 100% tested to ensure proper pressure and longevity
    • Meets all OEM specifications
    4.0
    Read 3 review(s)

    Review snapshot ® by PowerReviews

    4.0
    4.0
    • 1
      1
      2022-12-21
      1
      1

      Absolute garbage

      Absolute garbage

      Submitted 2022-12-21

      By Frustrated in Pa

      From Central PA

      I bought one of these, it fell apart in my radiator. I went in and bought another one, different box but same cheap cap inside. It just fell apart inside my radiator as well. If you want to destroy your cooling system or buy a new one every 6 months, go ahead.

      Bottom Line not recommended

      I bought one of these, it fell apart in my radiator. I went in and bought another one, different box but same cheap cap inside. It just fell apart inside my radiator as well. If you want to destroy your cooling system or buy a new one every 6 months, go ahead.

      By Frustrated in Pa from Central PA

      BOTTOM LINE not recommended

    • 2
      2
      2022-03-03
      2
      2

      This thing is a bandaid

      This thing is a bandaid

      Submitted 2022-03-03

      By DellSupport

      From Nashville, TN

      I did a drain and fill on a GX460. I went ahead and replaced the radiator cap with this thing just because. I ended up losing about a quarter inch of fluid per few hours of operation. I put some tracer fluid in the tank thinking I had an actual leak, and the pattern made no sense for a normal leak at all. Accepting that there were no visible leaks (that made any sense), and the only other changed input was the cap, I replaced this cap with a factory OEM cap from Lexus. Went on an 8 hour drive. No coolant loss. If you need a radiator cap, then yeah get it. But I would not use it as a long term solution. Else, you will be perpetually topping off your radiator fluid (For a Lexus GX460 at least).

      Bottom Line not recommended

      I did a drain and fill on a GX460. I went ahead and replaced the radiator cap with this thing just because. I ended up losing about a quarter inch of fluid per few hours of operation. I put some tracer fluid in the tank thinking I had an actual leak, and the pattern made no sense for a normal leak at all. Accepting that there were no visible leaks (that made any sense), and the only other changed input was the cap, I replaced this cap with a factory OEM cap from Lexus. Went on an 8 hour drive. No coolant loss. If you need a radiator cap, then yeah get it. But I would not use it as a long term solution. Else, you will be perpetually topping off your radiator fluid (For a Lexus GX460 at least).

      By DellSupport from Nashville, TN

      BOTTOM LINE not recommended

    • 1
      1
      2021-12-20
      1
      1

      No

      No

      Submitted 2021-12-20

      By Jim the Rummer

      From Asheville, NC

      cap received is a differnt cap from picture - go to buy OEM from Rock Auto

      Bottom Line not recommended

      cap received is a differnt cap from picture - go to buy OEM from Rock Auto

      By Jim the Rummer from Asheville, NC

      BOTTOM LINE not recommended

    from $14.99

  • Futaba / FEW Radiator Cap

    Futaba FEW - Futaba / FEW Radiator Cap (Part No. G101045813FUT)

    Description
    The Futaba radiator cap range has been developed to operate within original equipment manufacturer's specifications. A faulty radiator cap can cause your car to boil-over at a lower temperature. Test or replace the coolant cap when servicing the cooling system.

    Product Features:
    • Meets Original Equipment specifications.
    • Made from premium materials.
    • Designed to function on open cooling systems and overflow reservoir type systems.

    from $19.49

  • Radiator Cap

    Autopart International Inc - Radiator Cap (Part No. G10101964892API)

    from $9.52

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