diff --git a/openpype/hosts/fusion/plugins/publish/validate_saver_output_extension.py b/openpype/hosts/fusion/plugins/publish/validate_saver_output_extension.py
new file mode 100644
index 0000000000..8ece175344
--- /dev/null
+++ b/openpype/hosts/fusion/plugins/publish/validate_saver_output_extension.py
@@ -0,0 +1,59 @@
+import os
+
+import pyblish.api
+from openpype.pipeline import PublishValidationError
+from openpype.pipeline.publish import RepairAction
+from openpype.hosts.fusion.api.action import SelectInvalidAction
+
+
+class ValidateSaverOutputExtension(pyblish.api.InstancePlugin):
+    """
+    Temp docstring
+    """
+
+    order = pyblish.api.ValidatorOrder
+    label = "Validate Saver Output Extension"
+    families = ["render"]
+    hosts = ["fusion"]
+    actions = [SelectInvalidAction, RepairAction]
+
+    @classmethod
+    def get_invalid(cls, instance):
+        saver = instance.data["tool"]
+        output_path = saver.Clip[1]
+        current_ext = get_file_extension(output_path)
+        ext = instance.data["image_format"]
+        if not current_ext == ext:
+            return (saver, current_ext, ext)
+
+    def process(self, instance):
+        saver = instance.data["tool"]
+        current_ext = get_file_extension(saver.Clip[1])
+        expected_ext = instance.data["image_format"]
+
+        if not current_ext == expected_ext:
+            raise PublishValidationError(
+                f"Instance {saver.Name} output image format does not match the current publish selection.\n\n"
+                f"Current: {current_ext}\n\n"
+                f"Expected: {expected_ext}\n\n"
+                "You can use the repair action to update this instance.",
+                title=self.label,
+            )
+
+    @classmethod
+    def repair(cls, instance):
+        saver = instance.data["tool"]
+        output_path = saver.Clip[1]
+        ext = get_file_extension(output_path)
+        output_path = output_path.replace(
+            f".{ext}", f".{instance.data['image_format']}"
+        )
+        saver.SetData(
+            "openpype.creator_attributes.image_format",
+            instance.data["image_format"],
+        )
+        saver.Clip[1] = output_path
+
+
+def get_file_extension(full_path):
+    return os.path.splitext(full_path)[1].replace(".", "")