ACURA JH4DC54866S021940 Ignition Unit Immobilizer 39730-S5A-A010-M1

( Manufacturer Part Number: JH4DC54866S021940 ), ( Location: Box-a342-19357-8707 ), ( To Control: Multifunctional ), ( Color: Black ), ( Vintage Part: No ), ( Placement On Vehicle: Front, Steering Wheel ), ( Type: Switch Assembly ), ( Ipn: 39730-s5a-a010-m1 39730-s7a-h010-m1. ), ( Manufacturer Warranty: 1 Month ), ( Oe/oem Part Number: Oem, Jh4dc54866s021940 ), ( Features: Durable ), ( Country Of Origin: Japan )

Review ACURA Ignition Unit And Immobilizer Oem fits RSX 2002–2006

The Acura JH4DC54866S021940 is an ignition unit immobilizer designed for select 2002-2006 Acura RSX models. This advanced security system is essential for ensuring the proper functioning of your vehicle's ignition system and preventing unauthorized access.

The ignition unit immobilizer utilizes a secure, encrypted communication system between the key fob and the vehicle. When the key fob is not present or not authenticated, the immobilizer prevents the engine from starting, providing an additional layer of protection against theft.

The JH4DC54866S021940 immobilizer is a high-quality, OEM (original equipment manufacturer) part, ensuring a perfect fit and seamless integration with your Acura RSX. It is engineered to meet the highest standards of performance and durability, providing reliable operation for years to come.

The immobilizer is easy to install, requiring no special tools or extensive mechanical knowledge. Simply follow the instructions provided in the installation manual, and you'll have your vehicle's security system up and running in no time.

By installing the Acura JH4DC54866S021940 ignition unit immobilizer, you can enjoy peace of mind knowing that your vehicle is secure from unauthorized access and potential theft. This is an essential component of your RSX's security system, and it is highly recommended for all Acura RSX owners to ensure the continued protection of their investment.

The Acura RSX (2002-2006) Ignition Unit Immoilizer (part number: JH4DC54866S021940) is an essential component of the vehicle's security system. This part prevents the engine from starting unless the correct key is used. Here are some potential pros and cons of buying this ignition unit:

1. Enhanced Security: The ignition unit ensures that only the authorized key can start the engine, thus preventing unauthorized access to your vehicle.

2. Reliability: Acura is known for producing high-quality components. Therefore, purchasing a genuine Acura Ignition Unit from a trusted supplier can provide long-lasting performance.

3. Peace of Mind: Replacing a faulty ignition unit with a new one can give you peace of mind, knowing that your vehicle's security system is functioning correctly.

1. Cost: The cost of a new ignition unit can be high, especially when compared to the cost of a standard ignition system.

2. Installation Complexity: Installing an ignition unit requires specialized knowledge and tools. It is recommended to have this work done by a professional mechanic to avoid potential complications.

3. Potential for Key Malfunction: In some cases, a faulty ignition unit may cause issues with the key fob, leading to the need for an additional repair.

Buying a new Acura RSX (2002-2006) Ignition Unit (JH4DC54866S021940) can provide enhanced security, reliability, and peace of mind. However, the cost, installation complexity, and potential for key malfunction are important considerations. If you experience issues with your vehicle's ignition system, it is recommended to consult a trusted mechanic to assess the situation and determine whether a new ignition unit is necessary.

If you decide to replace your Acura RSX (2002-2006) ignition unit, it is essential to purchase a genuine Acura part from a trusted supplier. Additionally, having the installation work done by a professional mechanic can help ensure the proper functioning of your vehicle's security system.

Details:

Item may have physical differences than what is shown in the photos for listings with quantities. Return Conditions. Your original part number MUST match. 1 Day Shipping.

Accurate Listings. Sourced from Functioning Vehicles. Proven Track Record. Verify installation and/or programming requirements.

This item may require programming, flashing, or coding in order to work with your vehicle. Quality You Can Trust.

part #: jh4dc54866s021940 prices

• $33.00-$60.00

specifications inswico:

• for models: Rsx
• for makes: Acura
• for years: 2002-2006
• mpn: Jh4dc54866s021940
• location: Box-a342-19357-8707
• to control: Multifunctional
• color: Black
• vintage part: No
• placement on vehicle: Front, Steering Wheel
• type: Switch Assembly
• ipn: 39730-s5a-a010-m1 39730-s7a-h010-m1.
• manufacturer warranty: 1 Month
• oe/oem part number: Oem, Jh4dc54866s021940
• features: Durable
• country of origin: Japan

payments inswico:

• wallet: Apple-pay
• credit card: Visa
• other

general inswico:

• Car Truck Parts Accessories > Interior Parts Accessories > Switches Controls
• condition: Used

shipping inswico:

• transit: 2-6 Days
• type: Fixed
• service: USPS Ground Advantage
• class: Standard
• cost: $0.00
• carrier: USPS

returns inswico:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

offer inswico:

• sold: 0
• options: Ship-to-home
• quantity: 1
• availability: In Stock
• best offers: True
• started: May 20, 2026

seller inswico:

• city: NC
• # reviews: 5367
• rating: 99.7%

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