diff --git a/src/plugins/qmldesigner/components/contentlibrary/contentlibraryusermodel.cpp b/src/plugins/qmldesigner/components/contentlibrary/contentlibraryusermodel.cpp
index f0d7506e286..2af636da6d6 100644
--- a/src/plugins/qmldesigner/components/contentlibrary/contentlibraryusermodel.cpp
+++ b/src/plugins/qmldesigner/components/contentlibrary/contentlibraryusermodel.cpp
@@ -237,6 +237,17 @@ void ContentLibraryUserModel::removeMaterialFromContentLib(ContentLibraryMateria
     emit dataChanged(index(MaterialsSectionIdx), index(MaterialsSectionIdx));
 }
 
+void ContentLibraryUserModel::remove3DFromContentLibByName(const QString &qmlFileName)
+{
+    ContentLibraryItem *itemToRemove = Utils::findOr(m_user3DItems, nullptr,
+                                             [&qmlFileName](ContentLibraryItem *item) {
+        return item->qml() == qmlFileName;
+    });
+
+    if (itemToRemove)
+        remove3DFromContentLib(itemToRemove);
+}
+
 void ContentLibraryUserModel::remove3DFromContentLib(ContentLibraryItem *item)
 {
     QJsonArray itemsArr = m_bundleObj3D.value("items").toArray();
diff --git a/src/plugins/qmldesigner/components/contentlibrary/contentlibraryusermodel.h b/src/plugins/qmldesigner/components/contentlibrary/contentlibraryusermodel.h
index 67dc36b98e5..2a7f9a66f30 100644
--- a/src/plugins/qmldesigner/components/contentlibrary/contentlibraryusermodel.h
+++ b/src/plugins/qmldesigner/components/contentlibrary/contentlibraryusermodel.h
@@ -62,6 +62,8 @@ public:
 
     void add3DInstance(ContentLibraryItem *bundleItem);
 
+    void remove3DFromContentLibByName(const QString &qmlFileName);
+
     void setBundleObj(const QJsonObject &newBundleObj);
     QJsonObject &bundleJsonMaterialObjectRef();
     QJsonObject &bundleJson3DObjectRef();
diff --git a/src/plugins/qmldesigner/components/contentlibrary/contentlibraryview.cpp b/src/plugins/qmldesigner/components/contentlibrary/contentlibraryview.cpp
index b9f8d175863..63e5819c132 100644
--- a/src/plugins/qmldesigner/components/contentlibrary/contentlibraryview.cpp
+++ b/src/plugins/qmldesigner/components/contentlibrary/contentlibraryview.cpp
@@ -40,6 +40,7 @@
 #include <QJsonArray>
 #include <QJsonDocument>
 #include <QJsonObject>
+#include <QMessageBox>
 #include <QPixmap>
 #include <QVector3D>
 
@@ -671,7 +672,6 @@ void ContentLibraryView::addLib3DComponent(const ModelNode &node)
 {
     auto compUtils = QmlDesignerPlugin::instance()->documentManager().generatedComponentUtils();
 
-    // TODO: check component with existing name and show a confirmation dialog
     QString compBaseName = node.simplifiedTypeName();
     QString compFileName = compBaseName + ".qml";
 
@@ -680,8 +680,20 @@ void ContentLibraryView::addLib3DComponent(const ModelNode &node)
 
     auto bundlePath = Utils::FilePath::fromString(Paths::bundlesPathSetting() + "/User/3d/");
 
+    // confirm overwrite if an item with same name exists
+    if (bundlePath.pathAppended(compFileName).exists()) {
+        // Show a QML confirmation dialog before proceeding
+        QMessageBox::StandardButton reply = QMessageBox::question(m_widget, tr("3D Item Exists"),
+            tr("A 3D item with the same name '%1' already exists in the Content Library, are you sure you want to overwrite it?")
+                    .arg(compFileName), QMessageBox::Yes | QMessageBox::No);
+        if (reply == QMessageBox::No)
+            return;
+
+        // before overwriting remove old item (to avoid partial items and dangling assets)
+        m_widget->userModel()->remove3DFromContentLibByName(compFileName);
+    }
+
     // generate and save icon
-    UniqueName::generateId(compBaseName);
     QString iconPath = QLatin1String("icons/%1").arg(UniqueName::generateId(compBaseName) + ".png");
     QString fullIconPath = bundlePath.pathAppended(iconPath).toString();
     genAndSaveIcon(compDir.pathAppended(compFileName).path(), fullIconPath);
@@ -791,13 +803,17 @@ void ContentLibraryView::genAndSaveIcon(const QString &qmlPath, const QString &i
             else
                 qWarning() << "ContentLibraryView::genAndSaveIcon(): icon save failed";
         },
-        [](ImageCache::AbortReason abortReason) {
-            if (abortReason == ImageCache::AbortReason::Abort)
-                qWarning() << "ContentLibraryView::genAndSaveIcon(): icon generation aborted, reason: Abort";
-            else if (abortReason == ImageCache::AbortReason::Failed)
-                qWarning() << "ContentLibraryView::genAndSaveIcon(): icon generation aborted, reason: Failed";
-            else if (abortReason == ImageCache::AbortReason::NoEntry)
-                qWarning() << "ContentLibraryView::genAndSaveIcon(): icon generation aborted, reason: NoEntry";
+        [&](ImageCache::AbortReason abortReason) {
+            if (abortReason == ImageCache::AbortReason::Abort) {
+                qWarning() << QLatin1String("ContentLibraryView::genAndSaveIcon(): icon generation "
+                                            "failed for path %1, reason: Abort").arg(qmlPath);
+            } else if (abortReason == ImageCache::AbortReason::Failed) {
+                qWarning() << QLatin1String("ContentLibraryView::genAndSaveIcon(): icon generation "
+                                             "failed for path %1, reason: Failed").arg(qmlPath);
+            } else if (abortReason == ImageCache::AbortReason::NoEntry) {
+                qWarning() << QLatin1String("ContentLibraryView::genAndSaveIcon(): icon generation "
+                                            "failed for path %1, reason: NoEntry").arg(qmlPath);
+            }
         });
 }