diff --git a/packages/react-native/ReactAndroid/src/androidTest/java/com/facebook/react/testing/ReactAppTestActivity.java b/packages/react-native/ReactAndroid/src/androidTest/java/com/facebook/react/testing/ReactAppTestActivity.java
index 355640952b9..f8308e7ce07 100644
--- a/packages/react-native/ReactAndroid/src/androidTest/java/com/facebook/react/testing/ReactAppTestActivity.java
+++ b/packages/react-native/ReactAndroid/src/androidTest/java/com/facebook/react/testing/ReactAppTestActivity.java
@@ -21,14 +21,8 @@ import com.facebook.infer.annotation.Assertions;
 import com.facebook.react.ReactInstanceManager;
 import com.facebook.react.ReactInstanceManagerBuilder;
 import com.facebook.react.ReactRootView;
-import com.facebook.react.bridge.JSIModulePackage;
-import com.facebook.react.bridge.JSIModuleProvider;
-import com.facebook.react.bridge.JSIModuleSpec;
-import com.facebook.react.bridge.JSIModuleType;
-import com.facebook.react.bridge.JavaScriptContextHolder;
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.bridge.ReactContext;
-import com.facebook.react.bridge.UIManager;
 import com.facebook.react.common.LifecycleState;
 import com.facebook.react.modules.core.DefaultHardwareBackBtnHandler;
 import com.facebook.react.modules.core.PermissionAwareActivity;
@@ -37,8 +31,6 @@ import com.facebook.react.shell.MainReactPackage;
 import com.facebook.react.testing.idledetection.ReactBridgeIdleSignaler;
 import com.facebook.react.testing.idledetection.ReactIdleDetectionUtil;
 import com.facebook.react.uimanager.ViewManagerRegistry;
-import java.util.ArrayList;
-import java.util.List;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 
@@ -244,44 +236,16 @@ public class ReactAppTestActivity extends FragmentActivity
         .setUseDeveloperSupport(useDevSupport)
         .setBridgeIdleDebugListener(mBridgeIdleSignaler)
         .setInitialLifecycleState(mLifecycleState)
-        .setJSIModulesPackage(
-            new JSIModulePackage() {
-              @Override
-              public List<JSIModuleSpec> getJSIModules(
-                  final ReactApplicationContext reactApplicationContext,
-                  final JavaScriptContextHolder jsContext) {
-                List<JSIModuleSpec> packages = new ArrayList<>();
-                packages.add(
-                    new JSIModuleSpec() {
-                      @Override
-                      public JSIModuleType getJSIModuleType() {
-                        return JSIModuleType.UIManager;
-                      }
+        .setUIManagerProvider(
+            (ReactApplicationContext reactApplicationContext) -> {
+              ViewManagerRegistry viewManagerRegistry =
+                  new ViewManagerRegistry(
+                      mReactInstanceManager.getOrCreateViewManagers(reactApplicationContext));
 
-                      @Override
-                      public JSIModuleProvider getJSIModuleProvider() {
-                        return new JSIModuleProvider() {
-                          @Override
-                          public UIManager get() {
-                            ViewManagerRegistry viewManagerRegistry =
-                                new ViewManagerRegistry(
-                                    mReactInstanceManager.getOrCreateViewManagers(
-                                        reactApplicationContext));
-
-                            FabricUIManagerFactory factory = spec.getFabricUIManagerFactory();
-                            return factory != null
-                                ? factory.getFabricUIManager(
-                                    reactApplicationContext, viewManagerRegistry)
-                                : null;
-                          }
-                        };
-                      }
-                    });
-                if (spec.getJSIModuleBuilder() != null) {
-                  packages.addAll(spec.getJSIModuleBuilder().build(reactApplicationContext));
-                }
-                return packages;
-              }
+              FabricUIManagerFactory factory = spec.getFabricUIManagerFactory();
+              return factory != null
+                  ? factory.getFabricUIManager(reactApplicationContext, viewManagerRegistry)
+                  : null;
             });
 
     final CountDownLatch latch = new CountDownLatch(1);
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java
index 98257a80d8e..caad54549ac 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java
@@ -71,6 +71,7 @@ import com.facebook.react.bridge.ReactMarkerConstants;
 import com.facebook.react.bridge.ReactNoCrashSoftException;
 import com.facebook.react.bridge.ReactSoftExceptionLogger;
 import com.facebook.react.bridge.UIManager;
+import com.facebook.react.bridge.UIManagerProvider;
 import com.facebook.react.bridge.UiThreadUtil;
 import com.facebook.react.bridge.WritableNativeMap;
 import com.facebook.react.bridge.queue.ReactQueueConfigurationSpec;
@@ -186,6 +187,7 @@ public class ReactInstanceManager {
   private final MemoryPressureRouter mMemoryPressureRouter;
   private final @Nullable JSExceptionHandler mJSExceptionHandler;
   private final @Nullable JSIModulePackage mJSIModulePackage;
+  private final @Nullable UIManagerProvider mUIManagerProvider;
   private final @Nullable ReactPackageTurboModuleManagerDelegate.Builder mTMMDelegateBuilder;
   private List<ViewManager> mViewManagers;
   private boolean mUseFallbackBundle = true;
@@ -234,6 +236,7 @@ public class ReactInstanceManager {
       int minNumShakes,
       int minTimeLeftInFrameForNonBatchedOperationMs,
       @Nullable JSIModulePackage jsiModulePackage,
+      @Nullable UIManagerProvider uIManagerProvider,
       @Nullable Map<String, RequestHandler> customPackagerCommandHandlers,
       @Nullable ReactPackageTurboModuleManagerDelegate.Builder tmmDelegateBuilder,
       @Nullable SurfaceDelegateFactory surfaceDelegateFactory,
@@ -294,6 +297,7 @@ public class ReactInstanceManager {
       mPackages.addAll(packages);
     }
     mJSIModulePackage = jsiModulePackage;
+    mUIManagerProvider = uIManagerProvider;
 
     // Instantiate ReactChoreographer in UI thread.
     ReactChoreographer.initialize(
@@ -1389,7 +1393,7 @@ public class ReactInstanceManager {
               catalystInstance.getJSCallInvokerHolder(),
               catalystInstance.getNativeMethodCallInvokerHolder());
 
-      catalystInstance.setTurboModuleManager(turboModuleManager);
+      catalystInstance.setTurboModuleRegistry(turboModuleManager);
 
       // Eagerly initialize TurboModules
       for (String moduleName : turboModuleManager.getEagerInitModuleNames()) {
@@ -1404,6 +1408,9 @@ public class ReactInstanceManager {
     }
     if (ReactFeatureFlags.enableFabricRenderer) {
       catalystInstance.getJSIModule(JSIModuleType.UIManager);
+      if (mUIManagerProvider != null) {
+        catalystInstance.setFabricUIManager(mUIManagerProvider.createUIManager(reactContext));
+      }
     }
     if (mBridgeIdleDebugListener != null) {
       catalystInstance.addBridgeIdleDebugListener(mBridgeIdleDebugListener);
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManagerBuilder.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManagerBuilder.java
index 99bf611233e..f574f81c416 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManagerBuilder.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManagerBuilder.java
@@ -23,6 +23,7 @@ import com.facebook.react.bridge.JSExceptionHandler;
 import com.facebook.react.bridge.JSIModulePackage;
 import com.facebook.react.bridge.JavaScriptExecutorFactory;
 import com.facebook.react.bridge.NotThreadSafeBridgeIdleDebugListener;
+import com.facebook.react.bridge.UIManagerProvider;
 import com.facebook.react.common.LifecycleState;
 import com.facebook.react.common.SurfaceDelegateFactory;
 import com.facebook.react.common.annotations.StableReactNativeAPI;
@@ -68,6 +69,7 @@ public class ReactInstanceManagerBuilder {
   private int mMinNumShakes = 1;
   private int mMinTimeLeftInFrameForNonBatchedOperationMs = -1;
   private @Nullable JSIModulePackage mJSIModulesPackage;
+  private @Nullable UIManagerProvider mUIManagerProvider;
   private @Nullable Map<String, RequestHandler> mCustomPackagerCommandHandlers;
   private @Nullable ReactPackageTurboModuleManagerDelegate.Builder mTMMDelegateBuilder;
   private @Nullable SurfaceDelegateFactory mSurfaceDelegateFactory;
@@ -90,6 +92,11 @@ public class ReactInstanceManagerBuilder {
     return this;
   }
 
+  public ReactInstanceManagerBuilder setUIManagerProvider(UIManagerProvider uIManagerProvider) {
+    mUIManagerProvider = uIManagerProvider;
+    return this;
+  }
+
   /**
    * Name of the JS bundle file to be loaded from application's raw assets. Example: {@code
    * "index.android.js"}
@@ -355,6 +362,7 @@ public class ReactInstanceManagerBuilder {
         mMinNumShakes,
         mMinTimeLeftInFrameForNonBatchedOperationMs,
         mJSIModulesPackage,
+        mUIManagerProvider,
         mCustomPackagerCommandHandlers,
         mTMMDelegateBuilder,
         mSurfaceDelegateFactory,