Description
Part Description
This engine control module (ECM) was removed from a 2011 Honda Civic and has been professionally inspected for proper function. The unit carries OEM part number 37820-RNA-A72 and is currently on our shelf ready for immediate shipment. Our technicians have verified the module’s electrical connections and housing integrity.
The engine control module serves as the brain of your Honda’s engine management system, controlling fuel injection, ignition timing, emissions systems, and various sensors. ECM failures commonly occur due to electrical surges, water damage, or internal component degradation over time, resulting in poor engine performance, stalling, or failure to start. A faulty ECM may trigger check engine lights or cause erratic engine behavior.
603 Auto Salvage maintains over 50,000 quality used parts from more than 1,100 vehicles in our Plaistow, New Hampshire facility. Our experienced team can help you find the right ECM for your Honda and provide programming guidance. Browse our extensive inventory online or call our parts specialists for immediate assistance with your engine control module needs. 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) – Engine Brain Box |
| Interchange # | 52114 |
| OEM Part Number | 37820-RNA-A72 |
| Side | N/A |
| Part Grade | X — Grade X – Inspected and ready to ship, stored on shelf |
| Warranty | 90-Day Warranty (Standard warranty for electronic control modules) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2011 HONDA CIVIC |
| VIN | N/A |
| Vehicle Stock # | ECCIV24 |
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) – Engine Brain Box:
| ✅ Housing Integrity | No cracks or damage to ECM case |
| ✅ Connector Pins | All electrical pins clean and undamaged |
| ✅ Circuit Board | No visible corrosion or burn marks |
| ✅ Part Number Verification | Confirmed OEM part number 37820-RNA-A72 |
| ✅ Storage Condition | Properly stored in climate-controlled environment |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #52114, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2011-2012 | Honda | Civic | 1.8L engine – verify part number match |
| 2011-2012 | Honda | Civic Sedan | 1.8L automatic transmission models |
| 2011-2012 | Honda | Civic Coupe | 1.8L engine applications |
| 2011 | Honda | Civic Hybrid | Contact to verify hybrid compatibility |
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 Honda Civic ECM need programming after installation?
Yes, most Honda ECMs require programming to match your vehicle’s VIN and security system. This should be done by a Honda dealer or qualified automotive locksmith with Honda programming equipment.
How do I know if my 2011 Honda Civic ECM is failing?
Common symptoms include check engine lights, poor fuel economy, rough idling, stalling, or failure to start. The ECM may also cause transmission shifting problems or trigger multiple error codes.
What’s the difference between ECM, PCM, and ECU in Honda vehicles?
ECM (Engine Control Module) specifically controls engine functions, while PCM (Powertrain Control Module) controls both engine and transmission. ECU is a general term for Electronic Control Unit covering various vehicle systems.
Can I install this Honda ECM myself?
While physically replacing the ECM is straightforward, programming requires specialized equipment. Most DIY installers can handle the removal and installation but will need professional programming services.
How long do Honda Civic ECMs typically last?
Honda ECMs generally last 150,000-200,000 miles or more. Failures are often caused by electrical issues, water damage, or voltage spikes rather than normal wear.
What causes Honda ECM failure?
Common causes include electrical surges from jump-starting, water damage from flooding, corroded connections, or internal component failure. Heat and vibration can also contribute to ECM degradation over time.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| Honda OEM Part Number | 37820-RNA-A72 |
| Interchange Number | 52114 |
| Stock Number | ECCIV24 |
Price Comparison — Why Used OEM Makes Sense
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $800-$1,200 | 1 year | Brand new, longest wait time |
| Aftermarket | $400-$600 | Varies | Non-OEM fitment, quality varies |
| Other Salvage Yards | $75-$150 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $50 | 90-Day Warranty | Tested, Grade X, ships in 24hrs |
Installation Notes
- Disconnect battery and wait 10 minutes before removing old ECM
- Take photos of connector positions before disconnecting
- Handle ECM by edges only – avoid touching circuit board components
- Ensure all connectors click securely into place
- Have ECM programmed before attempting to start vehicle
🔍 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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