diff --git a/docker/configurator/variables.js b/docker/configurator/variables.js
index 1e676c4f1ea..9f8335880bb 100644
--- a/docker/configurator/variables.js
+++ b/docker/configurator/variables.js
@@ -51,6 +51,10 @@ const standardVariables = {
     type: "string",
     name: "defaultModelRendering"
   },
+  DEFAULT_SEND_EMPTY_VAlUE: {
+    type: "boolean",
+    name: "defaultSendEmptyValue"
+  },
   DISPLAY_REQUEST_DURATION: {
     type: "boolean",
     name: "displayRequestDuration"
diff --git a/docs/usage/configuration.md b/docs/usage/configuration.md
index 8670dfcf74b..c38a4fe9142 100644
--- a/docs/usage/configuration.md
+++ b/docs/usage/configuration.md
@@ -96,6 +96,14 @@ Parameter name | Docker variable | Description
             Value' links.)
         </td>
     </tr>
+    <tr>
+        <td><a name="user-content-defaultsendemptyvalue"></a><code>defaultSendEmptyValue</code>
+        </td>
+        <td><code>DEFAULT_SEND_EMPTY_VAlUE</code></td>
+        <td><code>Boolean=true</code>. Controls the initial state of the "Send empty value" checkbox in "Try it out"
+            forms. The default is <code>true</code> (checked).
+        </td>
+    </tr>
     <tr>
         <td><a name="user-content-displayrequestduration"></a><code>displayRequestDuration</code>
         </td>
diff --git a/flavors/swagger-ui-react/index.jsx b/flavors/swagger-ui-react/index.jsx
index 3ef06c70b6a..ac2b3845951 100644
--- a/flavors/swagger-ui-react/index.jsx
+++ b/flavors/swagger-ui-react/index.jsx
@@ -32,6 +32,7 @@ const SwaggerUI = ({
   defaultModelExpandDepth = config.defaults.defaultModelExpandDepth,
   defaultModelsExpandDepth = config.defaults.defaultModelsExpandDepth,
   defaultModelRendering = config.defaults.defaultModelRendering,
+  defaultSendEmptyValue = config.defaults.defaultSendEmptyValue,
   presets = config.defaults.presets,
   deepLinking = config.defaults.deepLinking,
   showExtensions = config.defaults.showExtensions,
@@ -59,6 +60,7 @@ const SwaggerUI = ({
       layout,
       defaultModelsExpandDepth,
       defaultModelRendering,
+      defaultSendEmptyValue,
       presets: [SwaggerUIConstructor.presets.apis, ...presets],
       requestInterceptor,
       responseInterceptor,
@@ -153,6 +155,7 @@ SwaggerUI.propTypes = {
   defaultModelExpandDepth: PropTypes.number,
   defaultModelsExpandDepth: PropTypes.number,
   defaultModelRendering: PropTypes.oneOf(["example", "model"]),
+  defaultSendEmptyValue: PropTypes.bool,
   presets: PropTypes.arrayOf(PropTypes.func),
   deepLinking: PropTypes.bool,
   showExtensions: PropTypes.bool,
diff --git a/src/core/config/defaults.js b/src/core/config/defaults.js
index b7daa8fd624..4afc1a9e6fc 100644
--- a/src/core/config/defaults.js
+++ b/src/core/config/defaults.js
@@ -31,6 +31,7 @@ const defaultOptions = Object.freeze({
   defaultModelRendering: "example",
   defaultModelExpandDepth: 1,
   defaultModelsExpandDepth: 1,
+  defaultSendEmptyValue: true,
   showExtensions: false,
   showCommonExtensions: false,
   withCredentials: false,
diff --git a/src/core/config/type-cast/mappings.js b/src/core/config/type-cast/mappings.js
index b025fb1295e..5c0058203a3 100644
--- a/src/core/config/type-cast/mappings.js
+++ b/src/core/config/type-cast/mappings.js
@@ -34,6 +34,10 @@ const mappings = {
     typeCaster: numberTypeCaster,
     defaultValue: defaultOptions.defaultModelsExpandDepth,
   },
+  defaultSendEmptyValue: {
+    typeCaster: booleanTypeCaster,
+    defaultValue: defaultOptions.defaultSendEmptyValue,
+  },
   displayOperationId: {
     typeCaster: booleanTypeCaster,
     defaultValue: defaultOptions.displayOperationId,
diff --git a/src/core/plugins/oas3/components/request-body.jsx b/src/core/plugins/oas3/components/request-body.jsx
index 64318fa9ec9..4fd4e40c540 100644
--- a/src/core/plugins/oas3/components/request-body.jsx
+++ b/src/core/plugins/oas3/components/request-body.jsx
@@ -54,7 +54,7 @@ const RequestBody = ({
   const handleFile = (e) => {
     onChange(e.target.files[0])
   }
-  const setIsIncludedOptions = (key) => {
+  const setIsIncludedOptions = (key, defaultSendEmptyValue) => {
     let options = {
       key,
       shouldDispatchInit: false,
@@ -63,7 +63,7 @@ const RequestBody = ({
     let currentInclusion = requestBodyInclusionSetting.get(key, "no value")
     if (currentInclusion === "no value") {
       options.shouldDispatchInit = true
-      // future: can get/set defaultValue from a config setting
+      options.defaultValue = defaultSendEmptyValue
     }
     return options
   }
@@ -76,7 +76,7 @@ const RequestBody = ({
   const Example = getComponent("Example")
   const ParameterIncludeEmpty = getComponent("ParameterIncludeEmpty")
 
-  const { showCommonExtensions } = getConfigs()
+  const { showCommonExtensions, defaultSendEmptyValue } = getConfigs()
 
   const requestBodyDescription = requestBody?.get("description") ?? null
   const requestBodyContent = requestBody?.get("content") ?? new OrderedMap()
@@ -223,7 +223,7 @@ const RequestBody = ({
                     <ParameterIncludeEmpty
                       onChange={(value) => onChangeIncludeEmpty(key, value)}
                       isIncluded={included}
-                      isIncludedOptions={setIsIncludedOptions(key)}
+                      isIncludedOptions={setIsIncludedOptions(key, defaultSendEmptyValue)}
                       isDisabled={Array.isArray(currentValue) ? currentValue.length !== 0 : !isEmptyValue(currentValue)}
                     />
                   )}
diff --git a/test/unit/docker/translator.js b/test/unit/docker/translator.js
index 28291971c29..6d6c6718380 100644
--- a/test/unit/docker/translator.js
+++ b/test/unit/docker/translator.js
@@ -238,6 +238,7 @@ describe("docker: env translator", function() {
         DEFAULT_MODELS_EXPAND_DEPTH: "0",
         DEFAULT_MODEL_EXPAND_DEPTH: "1",
         DEFAULT_MODEL_RENDERING: "example",
+        DEFAULT_SEND_EMPTY_VAlUE: "false",
         DISPLAY_REQUEST_DURATION: "true",
         DOC_EXPANSION: "full",
         FILTER: "wowee",
@@ -264,6 +265,7 @@ describe("docker: env translator", function() {
       defaultModelsExpandDepth: 0,
       defaultModelExpandDepth: 1,
       defaultModelRendering: "example",
+      defaultSendEmptyValue: false,
       displayRequestDuration: true,
       docExpansion: "full",
       filter: "wowee",
@@ -294,6 +296,7 @@ describe("docker: env translator", function() {
         DEFAULT_MODELS_EXPAND_DEPTH: "0",
         DEFAULT_MODEL_EXPAND_DEPTH: "1",
         DEFAULT_MODEL_RENDERING: "example",
+        DEFAULT_SEND_EMPTY_VAlUE: "false",
         DISPLAY_REQUEST_DURATION: "true",
         DOC_EXPANSION: "full",
         FILTER: "wowee",
@@ -328,6 +331,7 @@ describe("docker: env translator", function() {
       defaultModelsExpandDepth: 0,
       defaultModelExpandDepth: 1,
       defaultModelRendering: "example",
+      defaultSendEmptyValue: false,
       displayRequestDuration: true,
       docExpansion: "full",
       filter: "wowee",