InfinitiUsed OEMEngine Control Unit

2004 Infiniti FX45 4.5L V8 ECU ECM Engine Computer MEC33-800 B3 7P OEM

Name: 2004 Infiniti FX45 4.5L V8 ECU ECM Engine Computer MEC33-800 B3 7P OEM
Brand: Infiniti
SKU: EB-366625710730
Price: 257.0 USD
Availability: InStock

$257.00In stock

Shipping calculated at checkout. Import duties may apply.

Used OEM Hitachi engine ECU for selected Infiniti FX45 S50 4.5 V8 automatic-transmission applications.

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Part number: MEC33-800 B3
Item: Engine Control Unit
Supplied as: 1 × Hitachi engine ECU.
Make: Infiniti
Condition: Used, genuine OEM

Match the full MEC identification and calibration. ECU programming, NATS immobilizer work and relearns may be required.

Delivery & 14-day returns

Ships from the UAE. Shipping options, costs and estimated delivery times for your address are shown at checkout.
14-day returns, even if you ordered the wrong part. Request within 14 calendar days of delivery and keep the item as received, without installation attempts, programming, opening the module housing or modification.
For voluntary returns, the buyer pays return shipping. Original delivery charges are not refunded unless required by law.
Import duties and taxes are paid by the buyer unless included at checkout.

Shipping policy · Return policy

Item details

Overview

Genuine used Nissan / Infiniti engine ECU manufactured by Hitachi Ltd., Tokyo, Japan, for selected Infiniti FX45 S50 4.5L VK45DE V8 gasoline / automatic-transmission applications.

This listing is for one ECU, not a matched immobilizer or key set.

Part numbers

ECU:

MEC33-800
full identification MEC33-800 B3 3809
calibration / identification code 7P .

MEC33-810 B3 and MEC33-812 are related calibration references, not confirmed substitutes for this ECU.

Included

1 × pictured Hitachi MEC33-800 B3 3809 ECU, code 7P. No BCM, immobilizer module, key/key fob, ignition switch, steering lock, transmission control module, wiring harness or additional electronic modules are included.

Condition

Used genuine OEM, tested and confirmed working. The aluminum housing shows scratches, scuffs, oxidation/discoloration, dust and storage wear. Inspect the pictured mounting points and connector housings for their actual condition.

Compatibility & installation

Associated with 2004 FX45 applications; exact MEC number, suffix/calibration, production date, drivetrain and equipment must match. Same model/year and housing do not establish interchangeability.

Do not assume plug-and-play. A qualified Nissan/Infiniti specialist may need ECU cloning/programming, VIN or immobilizer-data transfer, reset/virginization, NATS initialization/key registration, donor-data clearing, calibration transfer, throttle/idle relearns and diagnostic adaptations. A no-start after installing an unmatched ECU does not alone establish a defective ECU.