FREE SHIPPING
Free shipping on every order — no minimum purchase required.DESCRIPTION
2017 Mercedes-AMG C 63 S M177 4.0L Engine Wiring Harness #3490 K3 – OEM replacement harness for 2017 Mercedes-AMG C 63 S models with the M177 twin-turbo 4.0L engine. This wiring harness manages critical engine sensors and ignition circuits to ensure proper fuel injection, turbo response, and overall engine performance.
- Fits 2017 Mercedes-AMG C 63 S with M177 engine
- OEM part number 3490 K3
- Manages fuel injectors, oxygen sensors, and turbo controls
- Factory-spec connectors and routing for exact fitment
Replace a damaged or corroded harness to restore reliable engine operation and prevent check engine lights on your high-performance AMG.
Note: This product is certified pre-owned and may contain minor cosmetic imperfections, but is in perfect working condition.
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.
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