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
Grade A Engine Control Module (ECM) for 2005 GM Trucks Silverado 2500 with 6.0L gasoline engine and automatic transmission. This electronic control unit manages engine performance and has been inspected and is ready to ship. Interchange #7633, Stock #1225294926.
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This Engine Control Module (ECM) was removed from a 2005 GM Trucks Silverado 2500 and has been thoroughly inspected by our certified technicians. The unit is designed for 6.0L gasoline engines with automatic transmission and mounts in the left front position under the battery. This ECM is currently on our shelf and ready to ship immediately upon order.
The Engine Control Module is the brain of your vehicle’s engine management system, controlling fuel injection, ignition timing, emissions systems, and transmission shifting. Common reasons for ECM replacement include water damage, electrical surges, internal component failure, or corrosion from battery acid exposure. A faulty ECM can cause poor fuel economy, rough idling, stalling, or prevent the vehicle from starting altogether.
603 Auto Salvage maintains an inventory of over 50,000 used auto parts from more than 1,100 vehicles, ensuring we have the quality OEM parts you need. Our experienced team can help you find the right Engine Control Module for your specific application. Contact us to verify compatibility or browse our extensive online inventory for additional GM truck parts. 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 Control Unit |
| Interchange # | 7633 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | A — Grade A – 116K miles, good working condition, inspected and ready to ship |
| Warranty | 90-Day Warranty (Standard warranty for electronic components with moderate mileage) |
| Type | Used OEM |
| Year / Make / Model | 2005 GM TRUCKS SILV25 |
| VIN | N/A |
| Vehicle Stock # | 1225294926 |
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Engine Control Module (ECM) – Electronic Control Unit:
| ✅ Connector Pins | All pins straight and free of corrosion |
| ✅ Housing Integrity | No cracks or damage to ECM case |
| ✅ Water Damage | No signs of moisture or corrosion inside unit |
| ✅ Circuit Board | Clean with no visible component damage |
| ✅ Programming | Unit powers on and communicates properly |
Based on interchange #7633, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2005 | GM Trucks | Silverado 2500 | 6.0L gasoline engine with automatic transmission – 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
Yes, this Engine Control Module will need to be programmed by a qualified technician or dealership to match your vehicle’s VIN and specific configuration. Programming ensures proper communication with other vehicle systems.
Common symptoms include check engine lights, poor fuel economy, rough idling, stalling, transmission shifting problems, or the vehicle not starting. A diagnostic scan can help confirm ECM-related fault codes.
This unit is specifically for 2005 GM trucks with 6.0L gasoline engines and automatic transmissions. Contact us with your VIN to verify exact compatibility, as ECMs are vehicle-specific components.
The Engine Control Module is mounted in the left front engine compartment area, typically under or near the battery. It’s housed in a protective case and connected via multiple wiring harnesses.
While physically replacing the ECM is straightforward, proper installation requires programming and calibration that must be done by a qualified technician with appropriate diagnostic equipment and software access.
Looking for this part by number? Here are the reference numbers:
| Interchange Number | 7633 |
| Engine Type | 6.0L Gasoline |
| Transmission | Automatic |
| Location | Left Front Under Battery |
| 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 A, 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 |
|---|
RatingAwesome experience Ray was the driver picked up my junk vehicle quickly efficiently and they even called to pick it up before schedule day because they had an opening. They kept their word super happy. I will definitely be using them again in the future.
Great yard ! Parts aren’t damaged and it is the cleanest yard I’ve ever seen! The staff is pretty amazing too !!
good lead times and customer service, look forward to more business here
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Great service! The best price and condition for the Porsche Cayenne parts needed to finish the job. Radiator core support and headlight fit perfectly!
Drove from new york, Julie was a sweetheart asked questions to make sure that my ECU was the proper part number and was compatible with my manual Accord, price was phenomenal I highly recommend them for any parts your car may need. Definitely the best salvage yard around
Great experience at 603 Auto Salvage! ⭐️ The owner and employee were both extremely helpful and easy to work with. I was able to find everything I needed in one stop — about seven different items — which saved me a lot of time and hassle. Good selection, fair pricing, and friendly service. Definitely recommend checking them out if you're looking for parts. I’ll be back again! 👍🔧🚗
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!
Drove from Connecticut to get here. Had parts for a relatively rare car that dozens of other places didn't have. I got a hood, fender and bumper cover that were in near mint condition for a fifteen year old car. They pulled all the parts for me and had everything ready within an hour. Very reasonably priced. Highly recommend
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They are Very Quick and Very Affordable for their parts. Went in there for my girlfriend, she needed an alternator, they had it ready at the desk by the time i got there. Thanks guys!
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If you’re not getting your car parts here then what are you doing?!! The best reliable car place in New Hampshire❤️ 100000% recommended
Great service! Picked up a door for my car and it was in good condition.
Purchased a wheel they had it ready the next day , not damaged, and ready for pickup. Julie was helpful at the front desk giving a specific time frame and held to it.
Super Friendly, Easy to work with, Accurate inventory, and great prices
Great place, have a wide selection of cars. They definitely will have what you need if not they will help a ton!
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
Bought a seat belt from here and a seat great service very polite will recommend
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