DESCRIPTION
2003 Nissan Pathfinder MEC31-320 Engine Computer Module (ECU/PCM) — Direct OEM replacement for 3.5L automatic transmissions. This factory-tested engine control unit manages fuel injection, ignition timing, and transmission shift logic to restore proper engine performance.
- Fits 2003 Nissan Pathfinder 3.5L V6 automatic only
- OEM MEC31-320 module — plug-and-play installation
- Controls fuel, ignition, and transmission functions
- Tested and ready to install
Replacing a faulty ECU eliminates hard starts, rough idle, check engine lights, and transmission hesitation — no reprogramming needed for this model year.
SHIPPING & RETURNS
SHIPPING
- Free Shipping on all orders — no minimum purchase required.
- Orders are dispatched within 24 hours of purchase (business days).
- Estimated delivery: 2–5 business days within the contiguous United States.
- Tracking information emailed as soon as your order ships.
RETURNS
- Exchanges accepted — we want you to be completely satisfied.
- If a part does not fit or is not as described, contact us within 7 days for an exchange.
- Items must be in original, unused condition and in original packaging.
WARRANTY
- 1-Year extended warranty available at additional cost — ask us for details.
FITMENT & COMPATIBILITY
Please verify that this part is compatible with your vehicle's year, make, model, and trim level before ordering. Part numbers and fitment details are listed in the product description. If you have any questions about compatibility, our team is happy to help — contact us by phone or email before purchasing.
Phone: (803) 723-7074
Email: sales@findmypart.shop
Hours: Mon–Fri, 9am–5pm EST
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