diff --git a/packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/AndroidConfiguration.kt b/packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/AndroidConfiguration.kt
deleted file mode 100644
index 48fe2cccea4e12..00000000000000
--- a/packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/AndroidConfiguration.kt
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-package com.facebook.react
-
-import com.android.build.gradle.BaseExtension
-import org.gradle.api.Project
-
-fun Project.configureDevPorts(androidExt: BaseExtension) {
-  val devServerPort =
-      project.properties["reactNativeDevServerPort"]?.toString() ?: DEFAULT_DEV_SERVER_PORT
-  val inspectorProxyPort =
-      project.properties["reactNativeInspectorProxyPort"]?.toString() ?: devServerPort
-
-  androidExt.buildTypes.all {
-    it.resValue("integer", "react_native_dev_server_port", devServerPort)
-    it.resValue("integer", "react_native_inspector_proxy_port", inspectorProxyPort)
-  }
-}
-
-const val DEFAULT_DEV_SERVER_PORT = "8081"
diff --git a/packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/ReactPlugin.kt b/packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/ReactPlugin.kt
index 079c6104d36e1e..81a708ff0456e5 100644
--- a/packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/ReactPlugin.kt
+++ b/packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/ReactPlugin.kt
@@ -9,13 +9,13 @@ package com.facebook.react
 
 import com.android.build.api.variant.AndroidComponentsExtension
 import com.android.build.gradle.AppExtension
-import com.android.build.gradle.BaseExtension
 import com.android.build.gradle.LibraryExtension
 import com.android.build.gradle.internal.tasks.factory.dependsOn
 import com.facebook.react.tasks.BuildCodegenCLITask
 import com.facebook.react.tasks.GenerateCodegenArtifactsTask
 import com.facebook.react.tasks.GenerateCodegenSchemaTask
 import com.facebook.react.utils.AgpConfiguratorUtils.configureBuildConfigFields
+import com.facebook.react.utils.AgpConfiguratorUtils.configureDevPorts
 import com.facebook.react.utils.JsonUtils
 import com.facebook.react.utils.NdkConfiguratorUtils.configureReactNativeNdk
 import com.facebook.react.utils.findPackageJsonFile
@@ -57,11 +57,9 @@ class ReactPlugin : Plugin<Project> {
   private fun applyAppPlugin(project: Project, config: ReactExtension) {
     configureReactNativeNdk(project, config)
     configureBuildConfigFields(project)
+    configureDevPorts(project)
     project.afterEvaluate {
       if (config.applyAppPlugin.getOrElse(false)) {
-        val androidConfiguration = project.extensions.getByType(BaseExtension::class.java)
-        project.configureDevPorts(androidConfiguration)
-
         val isAndroidLibrary = project.plugins.hasPlugin("com.android.library")
         val variants =
             if (isAndroidLibrary) {
diff --git a/packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/AgpConfiguratorUtils.kt b/packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/AgpConfiguratorUtils.kt
index 541338c8472c7a..3bf008535f7e02 100644
--- a/packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/AgpConfiguratorUtils.kt
+++ b/packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/utils/AgpConfiguratorUtils.kt
@@ -14,8 +14,9 @@ import org.gradle.api.Action
 import org.gradle.api.Project
 import org.gradle.api.plugins.AppliedPlugin
 
+@Suppress("UnstableApiUsage")
 internal object AgpConfiguratorUtils {
-  @Suppress("UnstableApiUsage")
+
   fun configureBuildConfigFields(project: Project) {
     val action =
         Action<AppliedPlugin> {
@@ -29,4 +30,25 @@ internal object AgpConfiguratorUtils {
     project.pluginManager.withPlugin("com.android.application", action)
     project.pluginManager.withPlugin("com.android.library", action)
   }
+
+  fun configureDevPorts(project: Project) {
+    val devServerPort =
+        project.properties["reactNativeDevServerPort"]?.toString() ?: DEFAULT_DEV_SERVER_PORT
+    val inspectorProxyPort =
+        project.properties["reactNativeInspectorProxyPort"]?.toString() ?: devServerPort
+
+    val action =
+        Action<AppliedPlugin> {
+          project.extensions.getByType(AndroidComponentsExtension::class.java).finalizeDsl { ext ->
+            ext.defaultConfig.resValue("integer", "react_native_dev_server_port", devServerPort)
+            ext.defaultConfig.resValue(
+                "integer", "react_native_inspector_proxy_port", inspectorProxyPort)
+          }
+        }
+
+    project.pluginManager.withPlugin("com.android.application", action)
+    project.pluginManager.withPlugin("com.android.library", action)
+  }
 }
+
+const val DEFAULT_DEV_SERVER_PORT = "8081"
diff --git a/packages/react-native-gradle-plugin/src/test/kotlin/com/facebook/react/AndroidConfigurationTest.kt b/packages/react-native-gradle-plugin/src/test/kotlin/com/facebook/react/AndroidConfigurationTest.kt
deleted file mode 100644
index 3c91f35e5a5aa6..00000000000000
--- a/packages/react-native-gradle-plugin/src/test/kotlin/com/facebook/react/AndroidConfigurationTest.kt
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-package com.facebook.react
-
-import com.android.build.gradle.BaseExtension
-import org.gradle.testfixtures.ProjectBuilder
-import org.junit.Assert.assertEquals
-import org.junit.Test
-
-class AndroidConfigurationTest {
-
-  @Test
-  fun configureDevPorts_withNoSpecifiedPort_usesDefault() {
-    val project = ProjectBuilder.builder().build()
-    project.pluginManager.apply("com.android.application")
-    val androidExtension = project.extensions.getByType(BaseExtension::class.java)
-    val debug = androidExtension.buildTypes.findByName("debug")
-    val release = androidExtension.buildTypes.findByName("release")
-
-    project.configureDevPorts(androidExtension)
-
-    assertEquals("8081", debug?.resValues?.get("integer/react_native_dev_server_port")?.value)
-    assertEquals("8081", debug?.resValues?.get("integer/react_native_inspector_proxy_port")?.value)
-    assertEquals("8081", release?.resValues?.get("integer/react_native_dev_server_port")?.value)
-    assertEquals(
-        "8081", release?.resValues?.get("integer/react_native_inspector_proxy_port")?.value)
-  }
-
-  @Test
-  fun configureDevPorts_withSpecifiedReactNativeDevServerPort_usesIt() {
-    val project = ProjectBuilder.builder().build()
-    project.pluginManager.apply("com.android.application")
-    val androidExtension = project.extensions.getByType(BaseExtension::class.java)
-    val debug = androidExtension.buildTypes.findByName("debug")
-    val release = androidExtension.buildTypes.findByName("release")
-
-    project.extensions.extraProperties["reactNativeDevServerPort"] = "42424"
-
-    project.configureDevPorts(androidExtension)
-
-    assertEquals("42424", debug?.resValues?.get("integer/react_native_dev_server_port")?.value)
-    assertEquals("42424", debug?.resValues?.get("integer/react_native_inspector_proxy_port")?.value)
-    assertEquals("42424", release?.resValues?.get("integer/react_native_dev_server_port")?.value)
-    assertEquals(
-        "42424", release?.resValues?.get("integer/react_native_inspector_proxy_port")?.value)
-  }
-
-  @Test
-  fun configureDevPorts_withSpecifiedReactNativeInspectorProxyPort_usesIt() {
-    val project = ProjectBuilder.builder().build()
-    project.pluginManager.apply("com.android.application")
-    val androidExtension = project.extensions.getByType(BaseExtension::class.java)
-    val debug = androidExtension.buildTypes.findByName("debug")
-    val release = androidExtension.buildTypes.findByName("release")
-
-    project.extensions.extraProperties["reactNativeInspectorProxyPort"] = "42424"
-
-    project.configureDevPorts(androidExtension)
-
-    assertEquals("8081", debug?.resValues?.get("integer/react_native_dev_server_port")?.value)
-    assertEquals("42424", debug?.resValues?.get("integer/react_native_inspector_proxy_port")?.value)
-    assertEquals("8081", release?.resValues?.get("integer/react_native_dev_server_port")?.value)
-    assertEquals(
-        "42424", release?.resValues?.get("integer/react_native_inspector_proxy_port")?.value)
-  }
-}