diff --git a/doc/source/whatsnew/v0.22.0.txt b/doc/source/whatsnew/v0.22.0.txt
index 6dc730cae37f7..171db4a5a6bc4 100644
--- a/doc/source/whatsnew/v0.22.0.txt
+++ b/doc/source/whatsnew/v0.22.0.txt
@@ -77,7 +77,7 @@ Performance Improvements
 - Added a keyword argument, ``cache``, to :func:`to_datetime` that improved the performance of converting duplicate datetime arguments (:issue:`11665`)
 - :class`DateOffset` arithmetic performance is improved (:issue:`18218`)
 - Converting a ``Series`` of ``Timedelta`` objects to days, seconds, etc... sped up through vectorization of underlying methods (:issue:`18092`)
--
+- The overriden ``Timedelta`` properties of days, seconds and microseconds have been removed, leveraging their built-in Python versions instead (:issue:`18242`)
 
 .. _whatsnew_0220.docs:
 
diff --git a/pandas/_libs/tslibs/timedeltas.pyx b/pandas/_libs/tslibs/timedeltas.pyx
index 4d55c8add6757..3a1e9de2a6cf6 100644
--- a/pandas/_libs/tslibs/timedeltas.pyx
+++ b/pandas/_libs/tslibs/timedeltas.pyx
@@ -665,36 +665,6 @@ cdef class _Timedelta(timedelta):
         else:
             return "D"
 
-    @property
-    def days(self):
-        """
-        Number of Days
-
-        .components will return the shown components
-        """
-        self._ensure_components()
-        return self._d
-
-    @property
-    def seconds(self):
-        """
-        Number of seconds (>= 0 and less than 1 day).
-
-        .components will return the shown components
-        """
-        self._ensure_components()
-        return self._seconds
-
-    @property
-    def microseconds(self):
-        """
-        Number of microseconds (>= 0 and less than 1 second).
-
-        .components will return the shown components
-        """
-        self._ensure_components()
-        return self._microseconds
-
     @property
     def nanoseconds(self):
         """