Aluminum 4 pin Max Airflow Sensor AFH70M54 6C11-12B579-AA 30777415 1376235 MHK501040

AFH70M54 Mass Air Flow Sensor 6C11-12B579-AA/30777415/1376235/MHK501040

Quality sensors are 100% tested before shipping and meet or exceed original equipment specifications. Premium options contain the best materials and electronics found in OE systems. This sensor is an insert-only type unit, meaning it must be fitted within the original housing using the original mounting hardware.

Part number AFH70M54 is widely cross-referenced across multiple automotive brands and aftermarket manufacturers. The following cross-references have been identified:

Additional cross-reference numbers that have been associated with this part include:

• 9658127480

• 1920.KQ

• K965712748

• K9657127480

• 86173

• 8ET009142-581

Important: Small deviations in the part number, e.g., different index letters at the end, can have a big impact on interoperability with your vehicle. Always compare the part number with that of your old part before purchase.

The AFH70M54 Mass Air Flow Sensor is designed primarily for diesel engine applications across a wide range of vehicles.

Important Note: This sensor is used across a wide range of platforms, primarily with diesel engines. Always verify compatibility with your specific vehicle's year, make, model, engine size, and original part number before purchase. The sensor is an insert-only type and must be fitted within the original housing using the original mounting.

A failing or failed AFH70M54 Mass Air Flow Sensor can produce a range of noticeable driveability issues. The MAF sensor is responsible for measuring intake air mass so the ECM can determine proper fuel delivery. When this sensor provides inaccurate readings or fails completely, engine performance is directly affected.

Common OBD-II codes associated with MAF sensor failure include:

• P0100 – Mass Air Flow Circuit Malfunction

• P0101 – Mass Air Flow Circuit Range/Performance Problem

• P0102 – Mass Air Flow Circuit Low Input

• P0103 – Mass Air Flow Circuit High Input

1. Disconnect Test: A simple diagnostic method is to unplug the MAF sensor connector. If the engine idle or performance improves significantly with the sensor disconnected, the MAF sensor is likely faulty.

2. OBD-II Scan: Retrieve diagnostic trouble codes to confirm MAF-related faults.

3. Visual Inspection: Inspect the sensor element for damage or contamination. A defective or dirty mass air flow sensor can deliver false input signals to the engine's central control unit.

4. Check for Air Intake Leaks: Before replacing the MAF sensor, check for simple air intake leaks, as they can cause identical symptoms.

5. Check Air Filter: Ensure the air filter is clean and properly installed. Please clean out the air box and replace the air filter before installing this mass air flow sensor, or the code and check engine light may keep showing even if you replace a new MAF.

Note: Symptoms may appear intermittently. A MAF sensor can fail gradually, with performance deteriorating over time as the hot-film sensing element ages or becomes contaminated. The most common cause of MAF sensor failure is contamination of the sensing element by dirt and moisture.

When purchasing a replacement AFH70M54 Mass Air Flow Sensor, consider the following factors to ensure proper fitment, performance, and longevity.

Critical: Before purchasing, confirm that the part number on your existing sensor matches AFH70M54 or one of its equivalents such as AFH70M-54 or AFH7-0M54. Small deviations in the part number, e.g., different index letters at the end, have a big impact on interoperability with your vehicle. Always compare the part number and product images with your old part before purchase.

The AFH70M54 sensor is used across a wide range of vehicles including Ford (Mondeo, Transit, Galaxy, S-Max, Transit Connect), Land Rover (Freelander 2, Defender), Peugeot/Citroën, and Fiat models. Always confirm your specific vehicle's year, make, model, engine size, and original part number before purchasing.

Critical: The AFH70M54 sensor is supplied without housing – it is an insert-only type unit. It must be fitted within the original housing using the original mounting. Verify that your existing housing is in good condition before purchasing.

This sensor features:

• 4-pin connector

• Oval connector shape

• No integrated air temperature sensor

Before ordering, verify that the plug configuration matches your vehicle's wiring harness connector.

This sensor is primarily designed for diesel engine applications. Verify your fuel type before purchase.

While aftermarket alternatives may be available at lower price points, quality varies significantly. Quality sensors are:

• 100% tested before shipping

• Manufactured to meet or exceed original equipment specifications

• Made from high-quality materials for durability

• Direct replacement parts that meet OE specifications

Some lower-cost alternatives may use inferior technology and provide unreliable readings.

• Location: The MAF sensor is located in the intake duct between the air filter and throttle body

• Quantity: One sensor per vehicle

• DIY Feasibility: Replacement is generally straightforward; users report installation taking approximately ten minutes

• Pre-installation: Clean out the air box and replace the air filter before installation

• Caution: Handle the sensing element with care; contamination from dirt, moisture, or oil can cause premature failure

Before replacing the MAF sensor, confirm that it is the root cause of your vehicle's symptoms. Perform the disconnect test or consult a professional diagnostic scan. Other issues such as vacuum leaks, clogged air filters, or faulty oxygen sensors can produce similar symptoms.

Quality MAF sensors typically come with warranties. Some suppliers offer warranties ranging from 12 months to 2 years. Consider the warranty coverage when comparing options, as this can be an indicator of manufacturer confidence in product quality.

Purchase from reputable suppliers with positive customer feedback. Reviews often provide valuable insight into product quality and compatibility.

The most common cause of MAF sensor failure is contamination of the sensing element by dirt and moisture. Ensure your air filter is replaced at recommended intervals to prevent premature sensor failure. Also check that the intake system is properly sealed to prevent unfiltered air from entering.

Check the supplier's return policy before purchase. Some suppliers offer 14-day return policies with money-back guarantees.