Walker 245-1574 Mass Air Flow Sensor

Walker 245-1574 Sensor Only MAF

Walker 245-1574 is a sensor-only mass air flow sensor built for precise airflow measurement and OE-style engine management performance. It is a direct replacement for select 2007-2009 Suzuki SX4 applications and is designed as a black, 5-terminal, male-pin sensor with an oblong 1-connector layout.

Key Features

• Sensor only design for faster, more economical replacement
• Fits 2007-2009 Suzuki SX4, N/A
• Black housing color with oblong connector shape
• 1 connector, 5 terminals, male connector gender
• 2 mounting holes; housing not included
• 100% new, never remanufactured
• Programmed and tested for fit, form, and function before release

Product Details

Walker Products’ Sensor Only line focuses on replacement MAF sensors without the housing assembly. For applications where the original housing is in good condition, this approach can simplify service while keeping the airflow signal calibrated for the engine control system. Walker engineers tune the flow characteristics across the operating range and verify calibrations through production testing and on-vehicle validation. This part number, 245-1574, is part of Walker’s long-running fuel system and engine sensor program, which includes U.S.-manufactured high-demand SKUs and OEM-quality components.

This part cross-references Standard Ignition MAS0306 and Spectra Premium MA309 for the same application.

Common Replacement Symptoms

• Rough idle or unstable idle speed
• Check engine light related to airflow or fuel trim readings
• Poor throttle response
• Hesitation during acceleration
• Incorrect air-fuel mixture caused by inaccurate airflow sensing

Installation Notes

• Inspect the air ducting and connector before installation.
• Clean surrounding intake components so debris does not enter the sensor area.
• Handle the sensing element carefully to avoid contamination.
• Verify the connector style and terminal count match the original part.
• Confirm the vehicle application before ordering for 2007-2009 Suzuki SX4 service.

Quality Assurance

Walker Products has supplied automotive fuel system components since 1946 and is an ISO 9001/IATF 16949 certified manufacturer. The 245-1574 MAF sensor is 100% new, programmed, and tested before sale, with production checks and vehicle-based verification used to confirm performance.