diff --git a/docs/data/material/migration/upgrade-to-v9/upgrade-to-v9.md b/docs/data/material/migration/upgrade-to-v9/upgrade-to-v9.md
index 0e2cfdc73de838..048f8c2bc629de 100644
--- a/docs/data/material/migration/upgrade-to-v9/upgrade-to-v9.md
+++ b/docs/data/material/migration/upgrade-to-v9/upgrade-to-v9.md
@@ -471,3 +471,23 @@ If you render a `TextField` from `Autocomplete`, the `params` shape also changed
    )}
  />
 ```
+
+#### Accordion deprecated props removed
+
+Use the [accordion-props codemod](https://github.com/mui/material-ui/tree/HEAD/packages/mui-codemod#accordion-props) below to migrate the code as described in the following section:
+
+```bash
+npx @mui/codemod@latest deprecations/accordion-props <path>
+```
+
+The deprecated `Accordion` props have been removed.
+Use the `slots` and `slotProps` props instead:
+
+```diff
+ <Accordion
+-  TransitionComponent={CustomTransition}
+-  TransitionProps={{ unmountOnExit: true }}
++  slots={{ transition: CustomTransition }}
++  slotProps={{ transition: { unmountOnExit: true } }}
+ >
+```
diff --git a/docs/pages/material-ui/api/accordion.json b/docs/pages/material-ui/api/accordion.json
index 2beffdd0f7f8f4..c99cb5f4f299fb 100644
--- a/docs/pages/material-ui/api/accordion.json
+++ b/docs/pages/material-ui/api/accordion.json
@@ -33,16 +33,6 @@
         "description": "Array&lt;func<br>&#124;&nbsp;object<br>&#124;&nbsp;bool&gt;<br>&#124;&nbsp;func<br>&#124;&nbsp;object"
       },
       "additionalInfo": { "sx": true }
-    },
-    "TransitionComponent": {
-      "type": { "name": "elementType" },
-      "deprecated": true,
-      "deprecationInfo": "Use <code>slots.transition</code> instead. This prop will be removed in a future major release. See <a href=\"/material-ui/migration/migrating-from-deprecated-apis/\">Migrating from deprecated APIs</a> for more details."
-    },
-    "TransitionProps": {
-      "type": { "name": "object" },
-      "deprecated": true,
-      "deprecationInfo": "Use <code>slotProps.transition</code> instead. This prop will be removed in a future major release. See <a href=\"/material-ui/migration/migrating-from-deprecated-apis/\">Migrating from deprecated APIs</a> for more details."
     }
   },
   "name": "Accordion",
diff --git a/docs/translations/api-docs/accordion/accordion.json b/docs/translations/api-docs/accordion/accordion.json
index df139b5eaa484f..a1883fb2b3494f 100644
--- a/docs/translations/api-docs/accordion/accordion.json
+++ b/docs/translations/api-docs/accordion/accordion.json
@@ -28,12 +28,6 @@
     "slots": { "description": "The components used for each slot inside." },
     "sx": {
       "description": "The system prop that allows defining system overrides as well as additional CSS styles."
-    },
-    "TransitionComponent": {
-      "description": "The component used for the transition. <a href=\"https://mui.com/material-ui/transitions/#transitioncomponent-prop\">Follow this guide</a> to learn more about the requirements for this component."
-    },
-    "TransitionProps": {
-      "description": "Props applied to the transition element. By default, the element is based on this <a href=\"https://reactcommunity.org/react-transition-group/transition/\"><code>Transition</code></a> component."
     }
   },
   "classDescriptions": {
diff --git a/packages/mui-material/src/Accordion/Accordion.d.ts b/packages/mui-material/src/Accordion/Accordion.d.ts
index e49fa0277480d7..6d7284e5f6e052 100644
--- a/packages/mui-material/src/Accordion/Accordion.d.ts
+++ b/packages/mui-material/src/Accordion/Accordion.d.ts
@@ -110,22 +110,6 @@ export interface AccordionOwnProps {
    * The system prop that allows defining system overrides as well as additional CSS styles.
    */
   sx?: SxProps<Theme> | undefined;
-  /**
-   * The component used for the transition.
-   * [Follow this guide](https://mui.com/material-ui/transitions/#transitioncomponent-prop) to learn more about the requirements for this component.
-   * @deprecated Use `slots.transition` instead. This prop will be removed in a future major release. See [Migrating from deprecated APIs](/material-ui/migration/migrating-from-deprecated-apis/) for more details.
-   */
-  TransitionComponent?:
-    | React.JSXElementConstructor<
-        TransitionProps & { children?: React.ReactElement<unknown, any> | undefined }
-      >
-    | undefined;
-  /**
-   * Props applied to the transition element.
-   * By default, the element is based on this [`Transition`](https://reactcommunity.org/react-transition-group/transition/) component.
-   * @deprecated Use `slotProps.transition` instead. This prop will be removed in a future major release. See [Migrating from deprecated APIs](/material-ui/migration/migrating-from-deprecated-apis/) for more details.
-   */
-  TransitionProps?: TransitionProps | undefined;
 }
 
 export type AccordionTypeMap<
diff --git a/packages/mui-material/src/Accordion/Accordion.js b/packages/mui-material/src/Accordion/Accordion.js
index f6d33ec6aeafaa..e072881bde2ba3 100644
--- a/packages/mui-material/src/Accordion/Accordion.js
+++ b/packages/mui-material/src/Accordion/Accordion.js
@@ -150,8 +150,6 @@ const Accordion = React.forwardRef(function Accordion(inProps, ref) {
     onChange,
     slots = {},
     slotProps = {},
-    TransitionComponent: TransitionComponentProp,
-    TransitionProps: TransitionPropsProp,
     ...other
   } = props;
 
@@ -188,12 +186,9 @@ const Accordion = React.forwardRef(function Accordion(inProps, ref) {
 
   const classes = useUtilityClasses(ownerState);
 
-  const backwardCompatibleSlots = { transition: TransitionComponentProp, ...slots };
-  const backwardCompatibleSlotProps = { transition: TransitionPropsProp, ...slotProps };
-
   const externalForwardedProps = {
-    slots: backwardCompatibleSlots,
-    slotProps: backwardCompatibleSlotProps,
+    slots,
+    slotProps,
   };
 
   const [RootSlot, rootProps] = useSlot('root', {
@@ -331,18 +326,6 @@ Accordion.propTypes /* remove-proptypes */ = {
     PropTypes.func,
     PropTypes.object,
   ]),
-  /**
-   * The component used for the transition.
-   * [Follow this guide](https://mui.com/material-ui/transitions/#transitioncomponent-prop) to learn more about the requirements for this component.
-   * @deprecated Use `slots.transition` instead. This prop will be removed in a future major release. See [Migrating from deprecated APIs](/material-ui/migration/migrating-from-deprecated-apis/) for more details.
-   */
-  TransitionComponent: PropTypes.elementType,
-  /**
-   * Props applied to the transition element.
-   * By default, the element is based on this [`Transition`](https://reactcommunity.org/react-transition-group/transition/) component.
-   * @deprecated Use `slotProps.transition` instead. This prop will be removed in a future major release. See [Migrating from deprecated APIs](/material-ui/migration/migrating-from-deprecated-apis/) for more details.
-   */
-  TransitionProps: PropTypes.object,
 };
 
 export default Accordion;
diff --git a/packages/mui-material/src/Accordion/Accordion.test.js b/packages/mui-material/src/Accordion/Accordion.test.js
index 33e1e6c4fba1c8..fdb91033a29729 100644
--- a/packages/mui-material/src/Accordion/Accordion.test.js
+++ b/packages/mui-material/src/Accordion/Accordion.test.js
@@ -80,7 +80,7 @@ describe('<Accordion />', () => {
 
   it('should be controlled', () => {
     const { container, setProps } = render(
-      <Accordion expanded TransitionComponent={NoTransition}>
+      <Accordion expanded slots={{ transition: NoTransition }}>
         {minimalChildren}
       </Accordion>,
     );
@@ -94,7 +94,7 @@ describe('<Accordion />', () => {
     const handleChange = spy();
 
     render(
-      <Accordion onChange={handleChange} TransitionComponent={NoTransition}>
+      <Accordion onChange={handleChange} slots={{ transition: NoTransition }}>
         {minimalChildren}
       </Accordion>,
     );
@@ -134,7 +134,7 @@ describe('<Accordion />', () => {
     expect(container.firstChild).to.have.class(classes.disabled);
   });
 
-  it('should handle the TransitionComponent prop', () => {
+  it('should handle the slots.transition prop', () => {
     function NoTransitionCollapse(props) {
       return props.in ? <div>{props.children}</div> : null;
     }
@@ -147,7 +147,7 @@ describe('<Accordion />', () => {
       return <div>Hello</div>;
     }
     const { setProps } = render(
-      <Accordion expanded TransitionComponent={NoTransitionCollapse}>
+      <Accordion expanded slots={{ transition: NoTransitionCollapse }}>
         <AccordionSummary />
         <CustomContent />
       </Accordion>,
@@ -221,7 +221,7 @@ describe('<Accordion />', () => {
 
   it('should warn when switching from controlled to uncontrolled', () => {
     const { setProps } = render(
-      <Accordion expanded TransitionComponent={NoTransition}>
+      <Accordion expanded slots={{ transition: NoTransition }}>
         {minimalChildren}
       </Accordion>,
     );
@@ -233,7 +233,7 @@ describe('<Accordion />', () => {
 
   it('should warn when switching between uncontrolled to controlled', () => {
     const { setProps } = render(
-      <Accordion TransitionComponent={NoTransition}>{minimalChildren}</Accordion>,
+      <Accordion slots={{ transition: NoTransition }}>{minimalChildren}</Accordion>,
     );
 
     expect(() => setProps({ expanded: true })).toErrorDev(
@@ -241,10 +241,10 @@ describe('<Accordion />', () => {
     );
   });
 
-  describe('prop: TransitionProps', () => {
+  describe('slotProps.transition', () => {
     it('should apply properties to the Transition component', () => {
       render(
-        <Accordion TransitionProps={{ 'data-testid': 'transition-testid' }}>
+        <Accordion slotProps={{ transition: { 'data-testid': 'transition-testid' } }}>
           {minimalChildren}
         </Accordion>,
       );