Description
Part Description
This Engine Control Module (ECM) was removed from a 2005 Ford F-150 with the 4.2L V6 engine and automatic transmission. The ECM, also known as the engine brain box, has been thoroughly inspected by our technicians and is currently on the shelf ready to ship. This unit carries the ID marking 5L3A-BLB and is designed for 4×2 (two-wheel drive) applications.
The Engine Control Module is the central computer that manages your truck’s engine performance, fuel injection, ignition timing, and emissions systems. When an ECM fails, symptoms include poor fuel economy, rough idling, stalling, or the check engine light staying on. ECM failure is often caused by electrical surges, corrosion, or internal component wear over time, making replacement necessary to restore proper engine operation.
At 603 Auto Salvage, we maintain over 50,000 quality used parts from more than 1,100 vehicles in our Plaistow, NH facility. Our experienced team ensures each part meets our high standards before it reaches our shelves. Contact us to verify compatibility with your specific vehicle or browse our extensive inventory online. 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 # | 7750 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | A — Grade A – Electronic Control Module for 4.2L V6, 4×2, AT, ID 5L3A-BLB, inspected and ready to ship |
| Warranty | 90-Day Warranty (Standard warranty for tested electronic components) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2005 FORD TRUCKS FTF150 |
| VIN | N/A |
| Vehicle Stock # | 0217237173 |
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 impact damage |
| ✅ Circuit Board | Internal components visually inspected, no burn marks or damage |
| ✅ Mounting Points | All mounting tabs and brackets in good condition |
| ✅ ID Verification | Part number 5L3A-BLB confirmed for 4.2L application |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #7750, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2005 | Ford | F-150 | 4.2L V6 engine, automatic transmission, 4×2 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 2005 Ford F-150?
This ECM is specifically for 2005 F-150 trucks with the 4.2L V6 engine, automatic transmission, and 4×2 drivetrain. Contact us with your VIN to verify exact compatibility before ordering.
Does the ECM need to be programmed after installation?
Yes, most ECMs require programming to match your vehicle’s VIN and specific options. This should be done by a qualified technician or Ford dealer after installation.
What are signs that my ECM is failing?
Common symptoms include check engine light, poor fuel economy, rough idle, stalling, hard starting, or transmission shifting issues. A diagnostic scan can help confirm ECM-related fault codes.
Is this the same as a PCM or engine computer?
Yes, ECM (Engine Control Module), PCM (Powertrain Control Module), and engine computer are terms often used interchangeably for the main engine management computer.
Can I return this part if it doesn’t fix my problem?
We offer a 90-day warranty on this ECM. If the part fails during the warranty period, we will replace it. Proper diagnosis is recommended before purchase.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| Ford ID Number | 5L3A-BLB |
| Application | 4.2L V6, Automatic Transmission, 4×2 |
| Interchange Number | 7750 |
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 | $125-175 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $100 | 90-Day Warranty | Tested, Grade A, ships in 24hrs |
Installation Notes
- Disconnect battery before removing old ECM to prevent electrical damage
- Take photos of connector positions before disconnecting wiring harnesses
- Handle the ECM carefully – avoid static electricity and moisture exposure
- Have the new ECM programmed immediately after installation for proper operation
🔍 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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