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
Used Electronic Control Module (Engine Brain Box) for 2007 Mercury Marine 3.0L engine. This ECM has been inspected and is ready to ship from our facility. Interchange #733, Stock #PCM1832.
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This Electronic Control Module (ECM), also known as an Engine Brain Box, was removed from a 2007 Mercury Marine vessel with a 3.0L engine. The unit carries ID number 7L8A-ASA and has been thoroughly inspected by our technicians. This ECM is currently on our shelf and ready for immediate shipment to get your marine engine running properly again.
The Engine Control Module is the computer brain that manages your marine engine’s fuel injection, ignition timing, and various engine sensors. When ECMs fail, symptoms include rough idling, poor fuel economy, engine stalling, or complete failure to start. Marine ECMs are particularly susceptible to moisture damage and electrical corrosion from the harsh marine environment, making replacement units essential for reliable operation.
At 603 Auto Salvage, we maintain over 50,000 parts in stock from more than 1,100 vehicles and marine units. Our experienced team can help you find the exact ECM or other marine engine components you need. Call us or browse our online inventory to find quality used OEM parts at significant savings over dealer prices. 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 (Engine Brain Box) |
| Interchange # | 733 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | X — Inspected and ready to ship – Electronic Control Module with ID 7L8A-ASA |
| Warranty | 90-Day Warranty (Standard warranty for electronic control modules) |
| Type | Used OEM |
| Year / Make / Model | 2007 MERCURY MARINE |
| VIN | N/A |
| Vehicle Stock # | PCM1832 |
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Electronic Control Module (Engine Brain Box):
| ✅ Connector Pins | All pins intact and free of corrosion |
| ✅ Housing Integrity | No cracks or water damage to ECM case |
| ✅ Circuit Board | Internal components visually inspected for damage |
| ✅ Identification Labels | ID number 7L8A-ASA verified and legible |
| ✅ Mounting Points | All mounting tabs and brackets in good condition |
Based on interchange #733, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2007 | Mercury | Marine 3.0L | Contact us for full compatibility list and programming requirements |
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 from a 2007 Mercury Marine 3.0L engine with ID 7L8A-ASA. Contact us with your engine specifications and current ECM ID number to verify compatibility before purchase.
Most marine ECMs require programming or initialization procedures specific to your engine. We recommend having the installation performed by a qualified marine technician who can properly program the unit.
Marine ECMs commonly fail due to moisture intrusion, electrical corrosion from salt water exposure, voltage spikes, or general wear over time. The harsh marine environment is particularly hard on electronic components.
Common symptoms of ECM failure include engine won’t start, rough idling, poor performance, stalling, or diagnostic trouble codes. A marine technician can test your current ECM to confirm if replacement is needed.
You receive the Electronic Control Module unit as shown. Programming, installation hardware, and wiring harnesses are not included unless specifically noted.
Looking for this part by number? Here are the reference numbers:
| Mercury ID Number | 7L8A-ASA |
| Engine Application | 3.0L Marine |
| Interchange Number | 733 |
| 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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