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Part #: 245-1109

Walker 245-1109 Mass Air Flow Sensor

Walker Mass Air Flow Sensor
14 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Mass Air Flow Sensor
Fitment: Nissan, Frontier, Xterra, and Pickup
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Mass Air Flow Sensor 245-1109

The Walker Mass Air Flow Sensor 245-1109 is designed for precise air measurement in Nissan vehicles, including the Frontier, Pickup, and Xterra models. This sensor helps maintain optimal engine performance by accurately monitoring the amount of air entering the engine.

  • Compatible with Nissan Frontier, Pickup, and Xterra
  • Part number 245-1109 for exact fitment
  • Includes mounting hardware for straightforward installation
  • Features a 3-terminal female connector
  • Housing not included, designed for direct replacement

Walker Mass Air Flow Sensor Product Line Details

The Walker Mass Air Flow Sensor line focuses on emission control sensors that deliver reliable air flow measurement to support engine management systems. The 245-1109 sensor is part of this line, engineered to meet OEM specifications for Nissan vehicles, ensuring compatibility and consistent performance within the emission control system.

Detailed Product Description

This mass air flow sensor features a 3-terminal female connector, which interfaces directly with the vehicle’s wiring harness. The sensor does not include a housing, so it is intended to replace the sensor element itself within the existing assembly. Mounting hardware is included to facilitate secure installation. The sensor’s design supports accurate air flow readings, which are critical for the engine control unit to adjust fuel injection and maintain emission standards.

Common Applications and Issues Addressed

  • Helps resolve engine stalling or rough idling caused by inaccurate air flow data
  • Addresses poor fuel economy linked to faulty mass air flow sensors
  • Corrects check engine light triggers related to air intake measurement errors
  • Improves acceleration response by providing precise air flow information
  • Supports emission control compliance in Nissan Frontier, Pickup, and Xterra models

Installation Notes and Tips

Installation requires removal of the old sensor from the air intake system. Since the housing is not included, ensure the existing housing is in good condition before installing the new sensor. Use the included mounting hardware to secure the sensor firmly. Verify the 3-terminal female connector matches the vehicle’s wiring harness to avoid connection issues. It is recommended to disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Walker mass air flow sensors are manufactured to meet strict quality standards for emission control components. The 245-1109 part undergoes testing to ensure accurate air flow measurement and durability under normal operating conditions. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandWalker
Part Number245-1109
PositionWalker Mass Air Flow Sensor
Connector GenderFemale
Housing IncludedNo
Mounting Hardware IncludedYes
Terminal Quantity3

This part fits 14 vehicles. Search below:

YearMakeModelSubmodelTransmissionLitersCylindersPositionNotes
2004NissanFrontier2.4LL4N/AWalker Mass Air Flow Sensor
2004NissanXterra2.4LL4N/AWalker Mass Air Flow Sensor
2003NissanFrontierBase2.4LL4N/AWalker Mass Air Flow Sensor
2003NissanXterra2.4LL4N/AWalker Mass Air Flow Sensor
2002NissanFrontierBase2.4LL4N/AWalker Mass Air Flow Sensor
2002NissanXterra2.4LL4N/AWalker Mass Air Flow Sensor
2001NissanFrontier2.4LL4N/AWalker Mass Air Flow Sensor
2001NissanXterra2.4LL4N/AWalker Mass Air Flow Sensor
2000NissanFrontier2.4LL4N/AWalker Mass Air Flow Sensor
2000NissanXterra2.4LL4N/AWalker Mass Air Flow Sensor
1999NissanFrontier2.4LL4N/AWalker Mass Air Flow Sensor
1998NissanFrontier2.4LL4N/AWalker Mass Air Flow Sensor
1997NissanPickupAutomatic2.4LL4N/AWalker Mass Air Flow Sensor
1996NissanPickupAutomatic2.4LL4N/AFits models from January 1996; Walker Mass Air Flow Sensor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

105154M3105157H7105185W4160171S700160171S710160173S500160173S5104M105255M1274500508309398650050917916AF10201AFH55M12MA235MAF0110MAS0397MF21219MF21219N

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.