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.
$75.00
Used Electronic Control Module (ECM) for 2007 Chevrolet Trailblazer with LH engine configuration. This engine brain box has been inspected and is ready to ship. Interchange #8112, Stock #PCM8584.
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This Electronic Control Module (ECM) was removed from a 2007 Chevrolet Trailblazer and is designed for left-hand engine applications. The part carries OEM number 12611937 and has been thoroughly inspected by our technicians. This engine brain box is currently on our shelf and ready for immediate shipment to get your vehicle back on the road.
The Engine Control Module is the central computer that manages your vehicle’s engine performance, fuel injection, ignition timing, and emissions systems. ECM failures are common due to electrical surges, corrosion, or component aging, often causing symptoms like poor fuel economy, rough idling, stalling, or check engine lights. When your ECM fails, a quality used OEM replacement is often the most cost-effective solution compared to expensive dealer programming of new units.
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 standards before it reaches our inventory. Contact us to verify compatibility for your specific vehicle or browse our extensive online catalog for additional Chevrolet parts and accessories. 50,000+ parts in stock from over 1,100 vehicles. Contact us or call (603) 392-7313 for anything you need.
| Part | Electronic Control Module (ECM) – Engine Brain Box |
| Interchange # | 8112 |
| OEM Part Number | 12611937 |
| Side | N/A |
| Part Grade | X — Grade X – Inspected and ready to ship, on shelf |
| Warranty | 90-Day Warranty (Standard warranty for electronic control modules) |
| Type | Used OEM |
| Year / Make / Model | 2007 CHEVROLET TRLBLZ |
| VIN | N/A |
| Vehicle Stock # | PCM8584 |
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Electronic Control Module (ECM) – Engine Brain Box:
| ✅ Connector Pins | All pins straight and free of corrosion |
| ✅ Housing Integrity | No cracks or damage to ECM case |
| ✅ Circuit Board | Internal components visually inspected |
| ✅ Mounting Points | All mounting tabs and brackets intact |
| ✅ Part Number Verification | Confirmed OEM number 12611937 |
Based on interchange #8112, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2007 | Chevrolet | Trailblazer | LH engine configuration – 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, most ECMs require programming to match your vehicle’s VIN and security system. We recommend having this done by a qualified technician or dealership after installation.
Common symptoms include check engine lights, poor fuel economy, rough idling, stalling, or the vehicle not starting. A diagnostic scan can confirm ECM-related trouble codes.
This ECM is specifically for LH engine applications with OEM number 12611937. Contact us with your VIN to verify exact compatibility for your vehicle.
You receive the Electronic Control Module only. Programming, installation, and any required connectors or mounting hardware are not included.
Yes, this part comes with our 90-day warranty. If the ECM fails during normal use within the warranty period, we will provide a replacement or refund.
Looking for this part by number? Here are the reference numbers:
| GM Part Number | 12611937 |
| Interchange Number | 8112 |
| Stock Number | PCM8584 |
| 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 | $100-150 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $75 | 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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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!
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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.
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