Welcome to 603 Auto Salvage, We Sell Quality Used Auto Parts at Affordable prices.
Welcome to 603 Auto Salvage, We Sell Quality Used Auto Parts at Affordable prices.
$100.00
Used Engine Control Module (ECM/PCM) for 2004 Ford F250SD with 8-330 (5.4L) engine. This electronic brain box controls engine functions and has been inspected and is ready to ship. Interchange #7429, Stock #PCM3421.
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This Engine Control Module (ECM), also known as a Powertrain Control Module (PCM) or engine brain box, was removed from a 2004 Ford F250SD pickup truck equipped with the 8-330 (5.4L) engine and automatic transmission. The unit carries ID number 4C3A-AC and is designed for low emissions applications. This electronic control module has been inspected by our technicians and is currently on the shelf ready to ship.
The Engine Control Module is the computer brain that manages your truck’s engine performance, fuel injection, ignition timing, and emissions systems. When ECMs fail, symptoms include poor fuel economy, rough idling, stalling, check engine lights, or complete no-start conditions. These modules commonly fail due to electrical surges, water damage, or internal component degradation over time, making a quality used replacement an economical repair solution.
At 603 Auto Salvage, we maintain over 50,000 used auto parts in stock from more than 1,100 vehicles in our Plaistow, NH facility. Our experienced team can help you find the right ECM for your Ford truck and verify compatibility. Browse our online inventory or contact us directly to discuss your specific needs and ensure proper fitment. 50,000+ parts in stock from over 1,100 vehicles. Contact us or call (603) 392-7313 for anything you need.
| Part | Engine Control Module (ECM/PCM) – Electronic Brain Box |
| Interchange # | 7429 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | X — Grade X – Inspected electronic control module, ID 4C3A-AC, ready to ship |
| Warranty | 90-Day Warranty (Standard electronic component warranty coverage) |
| Type | Used OEM |
| Year / Make / Model | 2004 FORD TRUCKS F250SD |
| VIN | N/A |
| Vehicle Stock # | PCM3421 |
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Engine Control Module (ECM/PCM) – Electronic Brain Box:
| ✅ Physical Housing Inspection | Checked for cracks, corrosion, and connector damage |
| ✅ Connector Pin Condition | Verified all pins are straight and free of corrosion |
| ✅ Internal Component Check | No signs of water damage or burnt components |
| ✅ Part Number Verification | Confirmed ID 4C3A-AC matches 5.4L low emissions application |
| ✅ Storage Condition | Properly stored on shelf to prevent static damage |
Based on interchange #7429, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2004 | Ford | F250SD | 5.4L engine, automatic transmission, low emissions – 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
This module is specifically for 2004 F250SD trucks with the 5.4L engine and automatic transmission in low emissions configuration. Contact us with your VIN to verify exact compatibility before ordering.
Yes, ECMs typically require programming to match your vehicle’s VIN and specific options. Most automotive locksmiths or dealerships can perform this programming service.
Common causes include electrical surges from jump starting, water damage from flooding, internal component aging, and voltage spikes from alternator problems. Symptoms include check engine lights, poor performance, and starting issues.
Signs include engine stalling, poor fuel economy, rough idling, transmission shifting problems, and diagnostic trouble codes. A professional scan tool diagnosis can confirm ECM-related fault codes.
You receive the complete ECM unit as removed from the donor vehicle. Programming, installation, and any required connectors or mounting hardware are not included.
Looking for this part by number? Here are the reference numbers:
| Module ID | 4C3A-AC |
| Engine Application | 8-330 (5.4L) Low Emissions |
| Transmission | Automatic |
| Interchange Number | 7429 |
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $800-1200 | 1 year | Brand new, longest wait time |
| Aftermarket | $400-600 | Varies | Non-OEM fitment, quality varies |
| Other Salvage Yards | $150-250 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $100 | 90-Day Warranty | Tested, Grade X, ships in 24hrs |
🔍 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
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.
Ready to order? Call (603) 392-7313 or add to cart above. We are here to help.
| Weight | 3 lbs |
|---|
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I had a great experience with 603 Auto Salvage Inc. The team was very helpful and quickly found the exact part I needed. They kept me informed and made the pickup process easy. The price was very fair, and the service was excellent. I would definitely recommend them and will use them again if I need parts in the future.
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The customer service at 603 was great. They found the part I needed very quickly and promptly notified me when it was ready to be picked up. There wasn’t any other place in the area that had what I needed. The price was very good also. I will be using them again for sure.
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