CHEVROLET BOX-A331-18943-Y2B321 Ignition Lock Key Immobilizer 13500157

( Manufacturer Part Number: BOX-A331-18943-Y2B321 ), ( Part Type: Ignition Lock ), ( Oe/oem Part Number: Oem, 1gnskhkc7jr333003, 13500157 ), ( Color: Black ), ( Features: Durability Tested )

Review CHEVROLET Ignition Lock Key And Immobilizer Oem fits SUBURBAN 1500 2013–2018

The **Chevrolet Box-A331-18943-Y2B321 Ignition Lock Key Immobilizer (Part Number 13500157)** is a high-quality, factory-replacement ignition lock cylinder and immobilizer assembly designed specifically for **2013 through 2018 Chevrolet Suburban 1500 and GMC Yukon 1500** models equipped with the **A331** ignition system. This precision-engineered component integrates a **key-operated ignition lock** with an **advanced electronic immobilizer**, ensuring both mechanical security and modern anti-theft protection. The unit features a **durable, corrosion-resistant housing** molded from high-grade plastic, reinforced with metal components where necessary to withstand the rigors of daily use, including exposure to varying temperatures, moisture, and mechanical stress. The ignition cylinder itself is designed with a **smooth, ergonomic keyway** that accommodates the original factory key, providing a secure and reliable fit while preventing unauthorized access. The immobilizer function operates through an **embedded electronic module** that communicates with the vehicle s onboard computer, verifying the authenticity of the key s transponder signal before allowing the engine to start. This dual-layered security system combining mechanical lockout with electronic validation helps deter theft and ensures compliance with modern vehicle security standards. Installation is straightforward, requiring the removal of the steering column cover and the old ignition assembly, followed by alignment of the new unit s pins and tumblers to match the key s cut. Once properly seated, the immobilizer is programmed to the vehicle s unique identification code, typically through a diagnostic port or via a dealer s scan tool, ensuring seamless integration with the existing security system. This part is an **OEM-quality replacement**, meaning it meets or exceeds the original equipment specifications in terms of build quality, performance, and compatibility, making it an ideal choice for both professional mechanics and DIY enthusiasts seeking a reliable and long-lasting solution. Whether replacing a worn-out or damaged ignition lock, upgrading security features, or addressing immobilizer malfunctions, the **Box-A331-18943-Y2B321 (13500157)** provides a robust and dependable upgrade that restores full functionality to your Chevrolet Suburban 1500 s ignition system.

### **Pros and Cons of buying a Chevrolet Box-A331-18943-Y2B321 (2013 2018 Suburban 1500 Ignition Lock Key Immobilizer Part #13500157)**

1. **Compatibility** This part is designed specifically for the 2013 2018 Chevrolet Suburban 1500, ensuring a proper fit for the ignition lock and immobilizer system. It is not a generic replacement, reducing the risk of installation issues.

2. **Security Functionality** The immobilizer feature prevents the vehicle from starting without the correct key, which helps deter theft and unauthorized use.

3. **Durability** Chevrolet parts are generally built to last, and this ignition lock is likely made from sturdy materials to withstand regular use.

4. **Aftermarket Support** Since this is a genuine or high-quality aftermarket part, it should be easy to find replacement keys or additional locks if needed.

5. **Prevents Key Loss Issues** If the original key is lost or damaged, this part allows for a new key to be programmed without needing the entire ignition assembly replaced.

6. **Common Availability** As a widely used part for this vehicle model, it should be relatively easy to source from auto parts stores, online retailers, or dealerships.

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1. **Potential for Counterfeit Parts** If purchasing from an unknown seller, there is a risk of receiving a low-quality or fake part that may not function correctly or could fail prematurely.

2. **Key Programming Complexity** Some immobilizer systems require programming the new key to the vehicle s computer. If the seller does not provide the necessary programming service, you may need to visit a dealership or locksmith, which can be costly.

3. **Wear and Tear Over Time** Even with proper use, ignition locks can wear out, especially if the keys are old or poorly made. This part may need replacement again in the future.

4. **Cost** While this part is not extremely expensive, it may still be a significant investment if you need to replace it alongside other related components (e.g., steering column lock).

5. **Installation Challenges** If you are not experienced with automotive repairs, installing this part may require professional help, adding to the overall cost.

6. **Compatibility with Modified Vehicles** If the vehicle has been modified (e.g., aftermarket alarm systems or security upgrades), there could be compatibility issues with the immobilizer.

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The **Chevrolet Box-A331-18943-Y2B321 ignition lock key immobilizer (part #13500157)** is a reliable and necessary replacement for the 2013 2018 Suburban 1500, particularly if the original lock is damaged, lost, or malfunctioning. Its primary advantage is ensuring security and proper vehicle operation, while its main drawbacks revolve around potential counterfeit parts, key programming requirements, and installation complexity.

If you are replacing a broken or stolen lock, this part is a solid choice especially if purchased from a reputable dealer. However, if you are unsure about key programming or installation, consulting a professional mechanic or locksmith is advisable.

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- **Buy from a trusted source** (e.g., OEM dealership, reputable auto parts retailer like RockAuto, or a well-reviewed online seller) to avoid counterfeit parts.

- **Verify key programming needs** some sellers offer programming services, while others may require you to arrange it separately.

- **Consider professional installation** if you lack mechanical experience, as improper handling could damage the steering column or ignition system.

- **Keep a spare key** since immobilizer systems rely on specific programming, losing the key could leave you stranded without a backup.

Overall, this part is a worthwhile investment for maintaining your Suburban s security and functionality, provided you source it responsibly and address any programming or installation requirements.

Details:

GMC: Sierra, Yukon. Proven Track Record. Verify installation and/or programming requirements. Quality You Can Trust.

Return Conditions. The item may have physical differences from what is shown in the photos for listings with quantities. Accurate Listings. 1 Day Shipping.

2013 2018 CHEVROLET Suburban 1500 IGNITION LOCK W/KEY IMMOBILIZER OEM 13500157. Chevrolet: Silverado, Suburban, Tahoe, Impala, Cobalt, Nix, Prisms, Spin, and Sonic. Your original part number MUST match. Sourced from Functioning Vehicles.

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

part #: boxa33118943y2b321 prices

• $99.00-$150.00

specifications chvyacheatercontrols:

• for models: 1500, Suburban
• for makes: Chevrolet
• for years: 2013-2018
• mpn: Box-a331-18943-y2b321
• part type: Ignition Lock
• oe/oem part number: Oem, 1gnskhkc7jr333003, 13500157
• color: Black
• features: Durability Tested

general chvyacheatercontrols:

• Car Truck Parts Accessories > Air Conditioning Heating > HVAC Controls Control Units
• condition: Used

seller chvyacheatercontrols:

• # reviews: 5172
• city: NC
• rating: 99.7%

returns chvyacheatercontrols:

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

payments chvyacheatercontrols:

• wallet: Paypal
• other
• credit card: Mastercard

shipping chvyacheatercontrols:

• type: Fixed
• class: Standard
• carrier: USPS
• cost: $0.00
• service: USPS Ground Advantage
• transit: 4-10 Days

offer chvyacheatercontrols:

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

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