diff --git a/changelogs/fragments/replace-private-attr.yaml b/changelogs/fragments/replace-private-attr.yaml
new file mode 100644
index 000000000..43edbb5f4
--- /dev/null
+++ b/changelogs/fragments/replace-private-attr.yaml
@@ -0,0 +1,3 @@
+---
+trivial:
+  - Replace uses of internal attribute _CHECK_ARGUMENT_TYPES_DISPATCHER with the public interface get_type_validator
diff --git a/plugins/module_utils/network/common/utils.py b/plugins/module_utils/network/common/utils.py
index ea41dcd6b..6d309f56f 100644
--- a/plugins/module_utils/network/common/utils.py
+++ b/plugins/module_utils/network/common/utils.py
@@ -43,6 +43,7 @@
 
 from ansible.module_utils._text import to_text, to_bytes
 from ansible.module_utils.common._collections_compat import Mapping
+from ansible.module_utils.common.parameters import get_type_validator
 from ansible.module_utils.six import iteritems, string_types
 from ansible.module_utils import basic
 from ansible.module_utils.parsing.convert_bool import boolean
@@ -288,9 +289,7 @@ def __call__(self, value, strict=True):
 
             if value[name] is not None:
                 value_type = attr.get("type", "str")
-                type_checker = self._module._CHECK_ARGUMENT_TYPES_DISPATCHER[
-                    value_type
-                ]
+                type_checker, unused = get_type_validator(value_type)
                 type_checker(value[name])
             elif value.get(name):
                 value[name] = self._module.params[name]