diff --git a/litellm/router.py b/litellm/router.py
index a5523d7af79..e3e9454ddce 100644
--- a/litellm/router.py
+++ b/litellm/router.py
@@ -3877,11 +3877,17 @@ class Router:
             )
 
             _router_timeout: Final = (
-                float(self._explicit_timeout) if isinstance(self._explicit_timeout, (int, float)) else None
+                self.request_timeout
+                if self.request_timeout is not None
+                else float(self._explicit_timeout)
+                if isinstance(self._explicit_timeout, (int, float))
+                else None
             )
             _router_stream_timeout: Final = (
                 self.stream_timeout
                 if self.stream_timeout is not None
+                else self.request_timeout
+                if self.request_timeout is not None
                 else self.default_litellm_params.get("stream_timeout")
             )
             kwargs["timeout"] = resolve_llm_passthrough_timeout(
diff --git a/tests/test_litellm/test_router.py b/tests/test_litellm/test_router.py
index e92e5de23dc..148ca0b0ffa 100644
--- a/tests/test_litellm/test_router.py
+++ b/tests/test_litellm/test_router.py
@@ -8230,6 +8230,16 @@ class TestRouterRequestTimeoutPropagation:
             == 60
         )
 
+    def test_passthrough_prefers_request_timeout_over_router_timeout(self, explicit_request_timeout):
+        router = self._make_router(timeout=330)
+        deployment: Final = router.model_list[0]
+        assert _passthrough_timeout(router, deployment, stream=False) == 300.0
+        assert _passthrough_timeout(router, deployment, stream=True) == 300.0
+
+    def test_passthrough_stream_timeout_still_wins_over_request_timeout(self, explicit_request_timeout):
+        router = self._make_router(timeout=330, stream_timeout=45)
+        assert _passthrough_timeout(router, router.model_list[0], stream=True) == 45.0
+
 
 # ---------------------------------------------------------------------------
 # Deferred-stream eager-fetch tests