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Kia 4300024320 Manual Transmission Assembly

2006-2008 Kia Optima

Customer Questions & Expert Answers (2)
4300024320 Kia Manual Transmission Assembly Illustration 1 of 1
  • Part Description
    Transmission Assembly-Manual
  • Part Code
    43000
  • Manufacturer
    Kia
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  • Specifications
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  • Q&A
  • Product Specifications

    BrandGenuine Kia
    Part Code43000
    Manufacturer Part Number4300024320
    Part DescriptionTransmission Assembly-Manual
    Other NamesTransaxle
    Item Weight216.00 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerKia
    SKU4300024320
    WarrantyThis genuine Kia part is guaranteed by Kia's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Trim & Engine Important vehicle option details
    2006-2008 Kia OptimaHigh Grade, Middle Grade|2.4L, 2.4L - Theta FF4 Door Sedan, Sedan - 4Door 5P
  • Customer Questions & Expert Answers

    Q:
    I want to confirm that this is the proper part for this VIN number before I order.
    A:
    You can Select Your Vehicle to check if 4300024320 fits your vehicle.
    Posted and answered by Kia Parts Specialist Paul
    Q:
    Is overhauling the manual Transmission Assembly on a Kia Optima a challenging task for a do-it-yourselfer? Posted by Ort C.
    A:
    The rebuilding of a manual transaxle is a job best left to a professional mechanic and is very complicated as it entails removal and replacement of numerous small parts and measurement of the kind of clearances that will require the usage of such critical spacers such as select-fit spacers and snap-rings. While a competent do-it-yourselfer can remove and install the transaxle, the process by which it is-overhauled is best carried out by a transmission repair shop as the procedure typically takes more time and money than a rebuilt transaxle, which can be ordered through a local dealer's parts department or auto parts store. The average novice mechanic, of course, is capable of rebuilding a transaxle if he is provided with the special tools needed and takes his time, so as not to miss anything in the process. New internal and external snap-ring pliers, a bearing puller, a slide hammer, set of pin punches, a dial indicator and possibly hydraulic press are among the indispensable tools and equipment necessary for this overhaul and a large solid working bench, vice or the transaxle stand. Annotations of the configuration and location of each subassembly at the disassembly stage are of utmost importance, and if there is an idea about the failed region of the transaxle, it will be easier to study and replace certain subassemblies since various troubles can be associated with specific regions of the transaxle.
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Kia Parts Specialist Paul / Mar 15, 2026

Genuine Kia Part 4300024320, the Right Choice

For assured reliability, buy Kia part # 4300024320 Manual Transmission Assembly. Also known as Transmission Assembly. They are produced at the official Kia factory to ensure durability and precise fit. These components undergo rigorous quality control tests to remove any defects. This will fit 2006-2008 Optima.

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