38920-T2A-A04 Car Battery Sensor Battery Terminal with

The X4XZ 38920-T2A-A04 is a direct-fit car battery current sensor with pigtail connector designed to replace OE# 38920-T2A-A04 and compatible OE part numbers for select Honda and Acura models.

This compact battery sensor monitors current flow, voltage and battery condition while providing a snug, OE-style connection to your vehicle’s wiring. Built from durable materials with copper-alloy conductors in the pigtail, the unit restores accurate battery measurement in charging systems and fits the original mounting points for a straightforward swap. Before ordering, confirm compatibility with your vehicle model and the sensor shape shown in the second product image.

How does this sensor help my car’s charging and battery monitoring system?

The sensor measures current to and from the battery and reports voltage and state-of-charge information to the vehicle’s control modules. That data lets the charging system adjust alternator output and helps the vehicle track battery health over time. Replacing a faulty sensor can clear charging errors and improve battery management.

• Monitors battery current in both charging and discharge events
• Provides voltage and state-of-charge signals to vehicle electronics
• Helps the alternator regulate charging properly

Which vehicles and OE numbers are compatible with this part?

This X4XZ sensor is made to replace OE# 38920-T2A-A04 and related variants, ensuring interchangeability with factory parts. It is commonly used on mid-2010s Honda and Acura models but always verify fitment visually and with your VIN if possible. The second product image shows the connector orientation and mounting style to compare with your old sensor.

• Replaces OE# 38920-T2A-A04, 38920T2AA04, 38920-T2A-A02, 38920-T2A-A03, 38920-TY2-A01
• Compatible with Acura RLX 2014–2020
• Compatible with Honda Accord 2013–2017

What does installation involve and what tools are required?

Installation is a direct replacement using your vehicle’s existing battery terminal and mounting bolt. Basic hand tools are sufficient: a wrench or socket for the terminal bolt and the sensor mounting bolt. Always disconnect the negative battery cable first and follow safety precautions to avoid shorting.

• Disconnect negative battery cable before starting
• Loosen and remove terminal and sensor mounting bolts with a wrench
• Swap in the new sensor, reconnect bolts and negative cable

What’s included and what performance can I expect?

The package contains one X4XZ battery current sensor with a pigtail connector ready for installation. The sensor’s copper-alloy conductors and engineered housing provide reliable electrical contact and stable sensing. Expect restored battery voltage/current readings and clearer charging system behavior when the part replaces a failing sensor.

• Package: Battery Current Sensor x1 with pigtail connector
• Durable construction with copper-alloy conductors for reliable connection
• Designed for a secure fit and accurate sensing in compatible vehicles

Who is this for: This replacement sensor is intended for owners, mechanics and DIY enthusiasts working on compatible Honda Accord (2013–2017) and Acura RLX (2014–2020) models who need an OE-fit battery current sensor. It’s suitable for anyone diagnosing charging-system faults, replacing a damaged terminal-sensor assembly, or restoring accurate battery monitoring without modifying factory wiring. If you need help with fit confirmation or installation guidance, X4XZ offers customer support and a one-year product service policy.