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
This is a used Engine Control Module (ECM) for a 2009 Nissan Altima with 2.5L 4-cylinder engine. The electronic brain box controls engine functions and has been inspected for proper operation. Interchange number 51968, stock PCM4137.
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This Engine Control Module (ECM) was removed from a 2009 Nissan Altima sedan with a 2.5L 4-cylinder engine and automatic/CVT transmission. The electronic brain box includes California emissions compliance and was located on the right fender area of the donor vehicle. This ECM has been inspected by our technicians and is on the shelf ready to ship.
The Engine Control Module is the computer that manages your engine’s fuel injection, ignition timing, emissions controls, and transmission functions. When an ECM fails, you may experience no-start conditions, poor fuel economy, rough idling, transmission shifting problems, or check engine lights. ECM failure can occur due to electrical surges, water damage, internal component wear, or accident damage to the mounting location.
At 603 Auto Salvage, we maintain over 50,000 used auto parts in stock from more than 1,100 vehicles. Our experienced team can help you find the right ECM for your Nissan Altima and verify compatibility with your specific vehicle. Call us or browse our online inventory to find quality used parts at affordable prices. 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) – Electronic Brain Box |
| Interchange # | 51968 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | X — Grade X – Inspected electronic control module, ready to ship |
| Warranty | 90-Day Warranty (Standard warranty for tested electronic components) |
| Type | Used OEM |
| Year / Make / Model | 2009 NISSAN ALTIMA |
| VIN | N/A |
| Vehicle Stock # | PCM4137 |
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Engine Control Module (ECM) – Electronic Brain Box:
| ✅ Physical Housing Inspection | Checked for cracks, corrosion, and mounting tab integrity |
| ✅ Connector Pin Condition | Verified all electrical pins are straight and free of corrosion |
| ✅ Internal Component Check | No signs of water damage or burnt components visible |
| ✅ Part Number Verification | Confirmed MEC120-180 B1 8Z18B identification matches description |
Based on interchange #51968, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2009 | Nissan | Altima | 2.5L 4-cylinder, automatic/CVT transmission, California emissions – Contact us for full compatibility verification |
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 ECM is specifically for 2009 Altima models with 2.5L 4-cylinder engines and automatic or CVT transmissions with California emissions. You’ll need to verify your vehicle’s engine size and transmission type for proper fitment.
Yes, most ECMs require programming to match your vehicle’s VIN and specific options. This typically needs to be done by a Nissan dealer or qualified automotive locksmith with the proper equipment.
Common causes include electrical surges from jump-starting or alternator problems, water damage from flooding or leaks, internal component aging, and physical damage from accidents affecting the right fender area where it’s mounted.
Symptoms include engine won’t start, rough idling, poor fuel economy, transmission shifting problems, multiple check engine lights, or complete loss of engine power. A diagnostic scan can help confirm ECM-related fault codes.
This is a genuine used OEM ECM removed from a donor vehicle. It has been inspected for physical condition but will require programming to work with your specific vehicle.
Looking for this part by number? Here are the reference numbers:
| ECM ID Number | MEC120-180 B1 8Z18B |
| Interchange Number | 51968 |
| Emissions Type | California Emissions Compliant |
| 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 | $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.
Excellent support, she helped me with my order service was fast and exactly what I needed.Very Professional.
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.
I had a great experience. They didn’t just look up the part I needed they took the time to explain how to install it and made sure I understood everything. I even received a call back, which I really appreciated. Everyone I spoke with was friendly and patient, and I never felt brushed off. I truly felt taken care of. Highly recommend if you want knowledgeable people who actually care about helping you. Kristy Thanks Guys!
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Great customer service and great prices!!! I purchased an engine that was in excellent condition and could not beat the price. The woman at the desk, Julie, was very helpful and knowledgeable. They put the engine on the back of the truck for me And secured it as well. I highly recommend this place. I will be coming here for any parts I need.
Eldy was awesome he helped load my car door and was informative. The lady Julie at the counter was super helpful and got back to me fast regarding the replacement door I needed. Highly recommended
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