diff --git a/packages/vite/src/node/constants.ts b/packages/vite/src/node/constants.ts
index 6be7360d344233..f2d3c161d8d84c 100644
--- a/packages/vite/src/node/constants.ts
+++ b/packages/vite/src/node/constants.ts
@@ -145,3 +145,7 @@ export const wildcardHosts = new Set([
   '::',
   '0000:0000:0000:0000:0000:0000:0000:0000',
 ])
+
+export const DEFAULT_DEV_PORT = 5173
+
+export const DEFAULT_PREVIEW_PORT = 4173
diff --git a/packages/vite/src/node/preview.ts b/packages/vite/src/node/preview.ts
index 4a5d66838bad94..aeeef7132846d8 100644
--- a/packages/vite/src/node/preview.ts
+++ b/packages/vite/src/node/preview.ts
@@ -17,6 +17,7 @@ import compression from './server/middlewares/compression'
 import { proxyMiddleware } from './server/middlewares/proxy'
 import { resolveHostname, resolveServerUrls, shouldServeFile } from './utils'
 import { printServerUrls } from './logger'
+import { DEFAULT_PREVIEW_PORT } from './constants'
 import { resolveConfig } from '.'
 import type { InlineConfig, ResolvedConfig } from '.'
 
@@ -139,7 +140,7 @@ export async function preview(
 
   const options = config.preview
   const hostname = await resolveHostname(options.host)
-  const port = options.port ?? 4173
+  const port = options.port ?? DEFAULT_PREVIEW_PORT
   const protocol = options.https ? 'https' : 'http'
   const logger = config.logger
 
diff --git a/packages/vite/src/node/server/index.ts b/packages/vite/src/node/server/index.ts
index c069ddf852c3fa..3833ab6b49ad08 100644
--- a/packages/vite/src/node/server/index.ts
+++ b/packages/vite/src/node/server/index.ts
@@ -40,7 +40,7 @@ import {
 } from '../optimizer'
 import { bindShortcuts } from '../shortcuts'
 import type { BindShortcutsOptions } from '../shortcuts'
-import { CLIENT_DIR } from '../constants'
+import { CLIENT_DIR, DEFAULT_DEV_PORT } from '../constants'
 import type { Logger } from '../logger'
 import { printServerUrls } from '../logger'
 import { invalidatePackageData } from '../packages'
@@ -661,7 +661,7 @@ async function startServer(
   }
 
   const options = server.config.server
-  const port = inlinePort ?? options.port ?? 5173
+  const port = inlinePort ?? options.port ?? DEFAULT_DEV_PORT
   const hostname = await resolveHostname(options.host)
 
   const protocol = options.https ? 'https' : 'http'
@@ -809,7 +809,10 @@ async function restartServer(server: ViteDevServer) {
   if (!middlewareMode) {
     await server.listen(port, true)
     logger.info('server restarted.', { timestamp: true })
-    if ((port ?? 5173) !== (prevPort ?? 5173) || host !== prevHost) {
+    if (
+      (port ?? DEFAULT_DEV_PORT) !== (prevPort ?? DEFAULT_DEV_PORT) ||
+      host !== prevHost
+    ) {
       logger.info('')
       server.printUrls()
     }