Description
Part Description
This engine control module (ECM) was removed from a 2007 Ford Mustang equipped with a 4.0L engine and automatic transmission. The unit carries ID number 7R3A-AMA and has been thoroughly inspected by our technicians. This electronic brain box is currently on our shelf and ready to ship immediately upon order.
The engine control module is the central computer that manages your Mustang’s engine performance, fuel injection, ignition timing, and emissions systems. ECMs commonly fail due to electrical surges, moisture damage, or internal component wear, causing symptoms like rough idling, poor fuel economy, stalling, or check engine lights. A faulty ECM can leave your vehicle undrivable, making replacement essential for proper engine operation.
603 Auto Salvage maintains over 50,000 quality used parts in stock from more than 1,100 vehicles in our Plaistow, NH facility. Our experienced team can help you find the exact ECM or any other component you need for your Ford Mustang. Contact us today to verify compatibility and availability for your specific vehicle. 50,000+ parts in stock from over 1,100 vehicles. Contact us or call (603) 392-7313 for anything you need.
Part Specifications
| Part | Engine Control Module (ECM) – Electronic Brain Box |
| Interchange # | 912 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | A — Grade A – 145K miles, good working condition, inspected and ready to ship |
| Warranty | 90-Day Warranty (Standard coverage for electronic components with moderate mileage) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2007 FORD MUSTAN |
| VIN | N/A |
| Vehicle Stock # | 0819253983 |
Our Testing & Inspection Process
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Engine Control Module (ECM) – Electronic Brain Box:
| ✅ Connector Pins | All pins clean and undamaged, no corrosion detected |
| ✅ Housing Integrity | Case intact with no cracks or moisture damage |
| ✅ Circuit Board | Internal components visually inspected, no burn marks |
| ✅ Part Number Verification | ID 7R3A-AMA confirmed for 4.0L automatic transmission |
| ✅ Electrical Testing | Basic functionality verified before removal |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #912, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2007 | Ford | Mustang | 4.0L engine with automatic transmission only – Contact us for full compatibility list |
Questions? Need a shipping quote? Call us now:
603 Auto Salvage | 233 Main St, Plaistow, NH 03865
Mon–Fri 8am–4:30pm | Sat 8am–2pm | Sun Closed
Warranty & Shipping
Frequently Asked Questions
Will this ECM work in my 2007 Ford Mustang?
This ECM is specifically for 2007 Mustangs with 4.0L engines and automatic transmissions. You’ll need to verify your engine size and transmission type, and the ECM may require programming to your vehicle’s VIN.
Does this engine control module need to be programmed?
Most ECMs require programming or flashing to match your specific vehicle’s VIN and options. Contact your local Ford dealer or qualified automotive technician for programming services after installation.
What are signs that my ECM is failing?
Common symptoms include check engine lights, rough idling, stalling, poor fuel economy, transmission shifting issues, or the vehicle not starting. These symptoms can also indicate other problems, so proper diagnosis is recommended.
How do I know if this is the right part number for my Mustang?
This ECM has ID number 7R3A-AMA and interchange number 912. You can verify compatibility by checking your current ECM’s part number or contacting us with your VIN for confirmation.
What’s included with this engine control module?
You’ll receive the complete ECM unit as removed from the donor vehicle. The wiring harness and connectors are not included – you’ll reuse your existing connections.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| Ford ID Number | 7R3A-AMA |
| Interchange Number | 912 |
| Engine Application | 4.0L V6 with Automatic Transmission |
Price Comparison — Why Used OEM Makes Sense
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $400-600 | 1 year | Brand new, longest wait time |
| Aftermarket | $250-400 | Varies | Non-OEM fitment, quality varies |
| Other Salvage Yards | $175-250 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $150 | 90-Day Warranty | Tested, Grade A, ships in 24hrs |
Installation Notes
- Disconnect battery and wait 10 minutes before removing old ECM to prevent electrical damage
- Take photos of connector positions before disconnecting to ensure proper reassembly
- Handle the ECM carefully and avoid touching circuit board components or connector pins
- The ECM will likely need programming to your VIN – arrange this service before installation
- Clear any stored error codes after installation and programming are complete
🔍 Free Fitment Check
Call us with your VIN and we will verify compatibility for free. No obligation, no pressure — just answers.
Our parts specialists check interchange data in real-time
Estimated Shipping Costs by Region
This part ships via FedEx Ground. Prices are estimates — call for an exact quote to your zip code.
| Region | Estimated Cost | Transit Time |
|---|---|---|
| New England (NH, MA, ME, VT, CT, RI) | $15 – $30 | 1–3 business days |
| Northeast (NY, NJ, PA, MD, VA) | $20 – $40 | 2–4 business days |
| Southeast (FL, GA, NC, SC, TN) | $25 – $45 | 3–5 business days |
| Midwest (OH, MI, IL, IN, WI, MN) | $30 – $50 | 3–5 business days |
| Southwest (TX, AZ, NM, OK) | $35 – $55 | 4–6 business days |
| West Coast (CA, OR, WA) | $40 – $65 | 5–7 business days |
Local pickup is always free. Free delivery within 30 miles of Plaistow, NH.
Why Buy From 603 Auto Salvage?
- 50,000+ parts in stock from over 1,100 vehicles on-site in Plaistow, NH
- Every part inspected before listing — no guesswork
- Family-owned salvage yard — real people, not a call center
- 90-Day Warranty on this part
- Fast shipping — most orders ship within 24 hours
- Competitive pricing — save 50–70% vs dealer prices
- Serving New Hampshire, Massachusetts & all 50 states
Ready to order? Call (603) 392-7313 or add to cart above. We are here to help.




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