Description
Part Description
This used Engine Control Module (ECM) was removed from a 1998 Ford Explorer donor vehicle. The electronic control module is firewall-mounted and designed for 6-245 (4.0L) SOHC engines with low emissions configuration. This part has been inspected by our technicians and is currently on the shelf ready to ship.
The Engine Control Module is the computer brain that controls your engine’s fuel injection, ignition timing, emissions systems, and other critical functions. ECMs commonly fail due to electrical surges, water damage, or internal component wear over time. When your ECM fails, your vehicle may experience no-start conditions, poor performance, failed emissions tests, or various engine warning lights.
603 Auto Salvage maintains over 50,000 used auto parts in stock from more than 1,100 vehicles. Our experienced team can help you find the right ECM for your Ford Explorer. Call us to verify compatibility or browse our extensive online inventory for additional Ford 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) – Firewall Mounted |
| Interchange # | 5049A |
| OEM Part Number | F87F-AUC |
| Side | N/A |
| Part Grade | X — Grade X – Inspected and ready to ship, firewall mounted unit for 4.0L SOHC low emissions |
| Warranty | 90-Day Warranty (Standard warranty for electronic control modules) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 1998 FORD EXPLOR |
| VIN | N/A |
| Vehicle Stock # | PCM1998 |
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) – Firewall Mounted:
| ✅ Connector Pins | All pins straight and corrosion-free |
| ✅ Housing Integrity | No cracks or damage to ECM case |
| ✅ Mounting Tabs | Secure and undamaged |
| ✅ Internal Components | No signs of water damage or burning |
| ✅ Part Number Verification | Confirmed F87F-AUC identification |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #5049A, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 1998 | Ford | Explorer | 4.0L SOHC engine with low emissions – 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 1998 Ford Explorer?
This ECM is designed for 1998 Ford Explorer with 4.0L SOHC engine and low emissions configuration. Contact us with your VIN to verify exact compatibility before purchase.
Does the ECM need to be programmed after installation?
Most 1998 Ford ECMs may require programming or initialization procedures. We recommend having installation performed by a qualified technician familiar with Ford systems.
What causes Ford Explorer ECMs to fail?
Common causes include electrical surges from jump-starting, water damage from flooding, internal component wear, and voltage spikes from alternator problems.
How do I know if my ECM is bad?
Symptoms include no-start conditions, engine stalling, poor fuel economy, failed emissions tests, and check engine lights. Professional diagnosis is recommended to confirm ECM failure.
What tools are needed to replace the ECM?
Basic hand tools for connector removal and mounting bolts. You may also need scan tools for programming and a multimeter for electrical testing.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| Ford Part Number | F87F-AUC |
| Interchange Number | 5049A |
| Engine Application | 6-245 (4.0L) SOHC Low Emissions |
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 | $125-175 | 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 positions before disconnection for reference
- Use dielectric grease on connectors to prevent corrosion
- Ensure all connectors click securely into place
- Have ECM programmed by qualified technician if required
🔍 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.




Reviews
There are no reviews yet.