Mazda 3 Bk Engine Control Unit ECU Computer LF1D18881B 2003-2009 OEM.

Product Description

Engine Control Unit ECU Computer LF1D18881B is a genuine OEM engine computer designed for Mazda 3 BK series models manufactured between 2003 and 2009.

This ECU controls essential engine functions including fuel injection, ignition timing, throttle response, and overall engine management. It ensures smooth driving performance, fuel efficiency, and accurate communication between engine sensors and vehicle systems.

Manufactured to Mazda’s original specifications, this module provides reliable operation and seamless integration with factory-installed electronics. Each unit is professionally tested to ensure full functionality and calibration accuracy.

Suitable for vehicles experiencing ECU faults, engine misfires, poor fuel economy, starting issues, or check engine light warnings.

Compatibility Table (VIN Verification Recommended)

Vehicle Model	Chassis Code	Year Range	System	OEM Part Number
Mazda 3	BK	2003–2009	Engine Control Module (ECM/ECU)	LF1D18881B

Additional Details:

Platform: BK Series
Fuel Type: Petrol
System: Engine Control Unit (ECU/ECM)
Market compatibility may vary by engine type and region

Important: Always confirm compatibility using:

OEM part number (LF1D18881B)
Vehicle VIN
ECU label information
Engine and transmission type

Key Features

Genuine OEM Mazda ECU
Part Number: LF1D18881B
Designed for Mazda 3 BK models
Controls fuel injection and ignition timing
Maintains factory engine calibration
Fully tested and quality verified
Supports programming or immobilizer pairing if required

Keywords

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Key features

Genuine OEM Mazda ECU
Part Number: LF1D18881B
Designed for Mazda 3 BK models
Controls fuel injection and ignition timing
Maintains factory engine calibration
Fully tested and quality verified
Supports programming or immobilizer pairing if required

Compatibility Table (VIN Verification Recommended)

Vehicle Model	Chassis Code	Year Range	System	OEM Part Number
Mazda 3	BK	2003–2009	Engine Control Module (ECM/ECU)	LF1D18881B

Additional Details:

Platform: BK Series
Fuel Type: Petrol
System: Engine Control Unit (ECU/ECM)
Market compatibility may vary by engine type and region

Important: Always confirm compatibility using:

OEM part number (LF1D18881B)
Vehicle VIN
ECU label information
Engine and transmission type

Shipping, returns and warranty

Worldwide shipping with tracking
30-day returns on unused, uninstalled parts
90-day limited warranty against defects

Send us your VIN and we confirm fitment before shipping. See our shipping policy and return policy.

Bk

LF1D18881B Mazda 3 Bk Engine Control Unit E6T56574HS1 ECU OEM