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Immobilizer/Anti-Theft Module
This usually takes 5-15 seconds. We're pulling together fitment data,
OEM numbers, and community knowledge...
Dusting off the service manual...
💡 This page improves over time as the community adds casting photos and confirms fitment
Wiki page
5L V8 Naturally Aspirated Coyote V8 (435hp).
Quick reference
Verify fitment for different engine options within the same production year
Check for potential updates or recalls on immobilizer systems
Ensure compatibility with key fob systems and transponder keys
Context
The 2018 Ford Mustang, powered by a robust 5L V8 Coyote engine, features an immobilizer/anti-theft module crucial for vehicle security. The OEM part number for this module is FR3Z-15K601-A, which has high compatibility across the 2015-2020 Mustang V8 models. When sourcing this part from a junkyard, be sure to inspect the module for any signs of damage or corrosion, as these can lead to failure. Installation requires careful handling of electrical connectors; always compare with the original part to ensure proper fitment. Additionally, consider part number FR3Z-15K601-B as a possible alternative, but verify compatibility first. Common issues with these modules include failure to recognize the key, which can immobilize the vehicle unexpectedly. Always check for any updates or recalls related to anti-theft systems for your specific model.
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Confirmed fitment
| Year | Make | Model | Engine | Confidence |
|---|---|---|---|---|
| 2018 | Ford | Mustang | 5L V8 Naturally Aspirated Coyote V8 (435hp) | 80% |
Available parts

Seller: Marketplace seller
$70
Asking
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