diff --git a/s3transfer/__init__.py b/s3transfer/__init__.py
index e8ff66f0..c3e0eac2 100644
--- a/s3transfer/__init__.py
+++ b/s3transfer/__init__.py
@@ -543,6 +543,7 @@ def download_file(
                 key,
                 filename,
                 object_size,
+                extra_args,
                 callback,
             )
             parts_future = controller.submit(download_parts_handler)
@@ -563,7 +564,7 @@ def _process_future_results(self, futures):
             future.result()
 
     def _download_file_as_future(
-        self, bucket, key, filename, object_size, callback
+        self, bucket, key, filename, object_size, extra_args, callback
     ):
         part_size = self._config.multipart_chunksize
         num_parts = int(math.ceil(object_size / float(part_size)))
@@ -575,6 +576,7 @@ def _download_file_as_future(
             filename,
             part_size,
             num_parts,
+            extra_args,
             callback,
         )
         try:
@@ -593,7 +595,15 @@ def _calculate_range_param(self, part_size, part_index, num_parts):
         return range_param
 
     def _download_range(
-        self, bucket, key, filename, part_size, num_parts, callback, part_index
+        self,
+        bucket,
+        key,
+        filename,
+        part_size,
+        num_parts,
+        extra_args,
+        callback,
+        part_index,
     ):
         try:
             range_param = self._calculate_range_param(
@@ -606,7 +616,7 @@ def _download_range(
                 try:
                     logger.debug("Making get_object call.")
                     response = self._client.get_object(
-                        Bucket=bucket, Key=key, Range=range_param
+                        Bucket=bucket, Key=key, Range=range_param, **extra_args
                     )
                     streaming_body = StreamReaderProgress(
                         response['Body'], callback
diff --git a/tests/unit/test_s3transfer.py b/tests/unit/test_s3transfer.py
index a2f46a13..84fe917f 100644
--- a/tests/unit/test_s3transfer.py
+++ b/tests/unit/test_s3transfer.py
@@ -670,6 +670,30 @@ def test_download_file_fowards_extra_args(self):
             SSECustomerKey='foo',
         )
 
+    def test_mutlipart_download_file_fowards_extra_args(self):
+        extra_args = {
+            'SSECustomerKey': 'foo',
+            'SSECustomerAlgorithm': 'AES256',
+        }
+        osutil = InMemoryOSLayer({})
+        over_multipart_threshold = 100 * 1024 * 1024
+        transfer = S3Transfer(self.client, osutil=osutil)
+        self.client.head_object.return_value = {
+            'ContentLength': over_multipart_threshold
+        }
+        self.client.get_object.return_value = {'Body': BytesIO(b'foobar')}
+
+        transfer.download_file(
+            'bucket', 'key', 'filename', extra_args=extra_args
+        )
+
+        self.client.get_object.assert_called_with(
+            Bucket='bucket',
+            Key='key',
+            Range=self.client.get_object.call_args.kwargs['Range'],
+            **extra_args
+        )
+
     def test_get_object_stream_is_retried_and_succeeds(self):
         below_threshold = 20
         osutil = InMemoryOSLayer({'smallfile': b'hello world'})