OBD Port Lock Cover – Universal Anti-Theft Diagnostic Protector

Keep Your Vehicle's OBD Port Secure & Protected

Your car's OBD (On-Board Diagnostics) port is a critical access point — and leaving it exposed can invite unauthorized access, dust buildup, moisture intrusion, and terminal corrosion. This OBD Port Lock Cover is a simple yet smart upgrade that seals and shields your diagnostic socket, helping maintain the long-term integrity of your vehicle's electronics.

Made in Mainland China.

Key Features

• Anti-Theft Security: Blocks unauthorized access to your OBD port, helping prevent relay attacks, diagnostic data theft, and keyless entry exploits commonly targeting modern vehicles.
• Dust & Moisture Blocking: Seals the OBD connection port against dust, debris, and moisture — helping ensure accurate diagnostics and minimizing oxidation of internal metal terminals over time.
• Stable, Secure Fit: Snaps securely onto the OBD port to prevent loose connections, maintaining a stable interface for consistent diagnostic functionality in all driving conditions.
• Weather-Resistant ABS Construction: Built from durable ABS plastic that resists wear, aging, scratches, and environmental exposure — engineered for long-term, dependable coverage.
• Quick & Easy Installation: No tools required. Simplified setup steps make installation effortless — just plug it in and go.
• Reduces Electrical Interference Risk: Protects internal metal terminals from short circuits and interference, helping prolong the OBD system's operational lifespan.
• Universal Fit: Compatible with the standard OBD-II port found in the vast majority of passenger vehicles, trucks, and SUVs (model year 1996 and newer).

Specifications

What's in the Box?

• 1× OBD Port Protection Cover

Note: Due to different lighting and screen settings, the item color may appear slightly different from product images. Please allow a 1–2 cm difference due to manual measurements.

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For more information on vehicle OBD-II standards and port security, visit the NIST Vehicle Cybersecurity resources or the U.S. Consumer Product Safety Commission (CPSC) for general consumer product safety guidance.

Frequently Asked Questions

Q: Is this OBD port lock cover compatible with my car?

A: This OBD port cover is designed for universal compatibility with the standard OBD-II 16-pin diagnostic port, which is found in virtually all passenger cars, trucks, and SUVs manufactured from 1996 onward in the US, and similarly standardized vehicles worldwide. Check your vehicle's OBD-II port location (typically under the dashboard on the driver's side) before purchase.

Q: How does this cover protect against car theft?

A: Modern vehicles can be vulnerable to relay-style attacks and unauthorized diagnostic access through the OBD-II port. This lock cover physically blocks access to the port, adding a barrier that deters unauthorized scanning devices or programming tools from being plugged in without your knowledge.

Q: Is the OBD cover easy to remove when I need a diagnostic scan?

A: Yes. The cover is designed for quick installation and removal — no tools required. Simply unplug it when visiting a mechanic or running a diagnostic scan, then replace it afterward to restore protection.

Q: What material is the OBD port lock cover made from?

A: The cover is made from durable ABS (Acrylonitrile Butadiene Styrene) plastic, which is known for its toughness, weather resistance, and ability to withstand everyday wear, scratches, and temperature fluctuations inside a vehicle.