Description
Part Description
This engine control module (ECM) was removed from a 2000 GM Trucks Silverado 2500 equipped with a 6.0L engine and automatic transmission. The unit has been professionally inspected and is currently on our shelf ready for immediate shipment. This electronic brain box controls critical engine functions and has been tested to ensure proper operation.
The engine control module is the computer that manages your vehicle’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. Replacement is often necessary due to electrical failures, water damage, or normal wear over time in high-mileage vehicles.
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 carefully inspects each component before it goes on our shelf. Contact us to verify compatibility with your specific vehicle 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 Specifications
| Part | Engine Control Module (ECM) – Electronic Brain Box |
| Interchange # | 5457 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | X — Grade X – Inspected and ready to ship, removed from 6.0L automatic transmission vehicle |
| Warranty | 90-Day Warranty (Standard warranty for electronic control modules) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2000 GM TRUCKS SILV25 |
| VIN | N/A |
| Vehicle Stock # | PCM4896 |
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 straight and corrosion-free |
| ✅ Housing Integrity | No cracks or damage to ECM case |
| ✅ Circuit Board | Internal components visually inspected |
| ✅ Mounting Points | All mounting tabs and brackets intact |
| ✅ Part Numbers | OEM numbers verified and documented |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #5457, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2000 | GM Trucks | Silverado 2500 | 6.0L 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
Warranty & Shipping
Frequently Asked Questions
Will this ECM work in my 2000 Silverado 2500?
This ECM is specifically from a 2000 Silverado 2500 with 6.0L engine and automatic transmission. Programming may be required for proper operation in your vehicle.
Does the ECM need to be programmed after installation?
Most ECMs require programming or flashing to match your vehicle’s VIN and options. Contact a qualified technician or dealership for programming services.
What are signs of a failing engine control module?
Common symptoms include check engine light, poor fuel economy, rough idle, stalling, or the engine not starting. Professional diagnosis is recommended to confirm ECM failure.
Is this the original ECM from the donor vehicle?
Yes, this is the original factory ECM removed from a 2000 GM Trucks Silverado 2500. It has been inspected and is ready for installation.
Can I return this ECM if it doesn’t work in my vehicle?
All parts come with our standard return policy. Contact us immediately if you experience any issues after installation for assistance.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| Auto Trans ID | 09354896 |
| Additional ID | 16220610 |
| Interchange Number | 5457 |
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 | $150-250 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $100 | 90-Day Warranty | Tested, Grade X, ships in 24hrs |
Installation Notes
- Disconnect battery before removing old ECM to prevent electrical damage
- Take photos of connector locations before disconnecting wires
- Handle ECM carefully – avoid static electricity and moisture exposure
- Programming will likely be required 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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