diff --git a/e2e/react-start/basic/package.json b/e2e/react-start/basic/package.json
index 1b81972f0c..ffc2ea99ac 100644
--- a/e2e/react-start/basic/package.json
+++ b/e2e/react-start/basic/package.json
@@ -26,6 +26,7 @@
     "@tanstack/react-start": "workspace:^",
     "express": "^5.1.0",
     "http-proxy-middleware": "^3.0.5",
+    "js-cookie": "^3.0.5",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "redaxios": "^0.5.1",
@@ -35,6 +36,7 @@
     "@playwright/test": "^1.50.1",
     "@tailwindcss/postcss": "^4.1.15",
     "@tanstack/router-e2e-utils": "workspace:^",
+    "@types/js-cookie": "^3.0.6",
     "@types/node": "^22.10.2",
     "@types/react": "^19.0.8",
     "@types/react-dom": "^19.0.3",
diff --git a/e2e/react-start/basic/src/routeTree.gen.ts b/e2e/react-start/basic/src/routeTree.gen.ts
index 1f798d17fa..0675c8b5f2 100644
--- a/e2e/react-start/basic/src/routeTree.gen.ts
+++ b/e2e/react-start/basic/src/routeTree.gen.ts
@@ -28,6 +28,7 @@ import { Route as SearchParamsIndexRouteImport } from './routes/search-params/in
 import { Route as RedirectIndexRouteImport } from './routes/redirect/index'
 import { Route as PostsIndexRouteImport } from './routes/posts.index'
 import { Route as NotFoundIndexRouteImport } from './routes/not-found/index'
+import { Route as MultiCookieRedirectIndexRouteImport } from './routes/multi-cookie-redirect/index'
 import { Route as UsersUserIdRouteImport } from './routes/users.$userId'
 import { Route as SearchParamsLoaderThrowsRedirectRouteImport } from './routes/search-params/loader-throws-redirect'
 import { Route as SearchParamsDefaultRouteImport } from './routes/search-params/default'
@@ -36,6 +37,7 @@ import { Route as PostsPostIdRouteImport } from './routes/posts.$postId'
 import { Route as NotFoundViaLoaderRouteImport } from './routes/not-found/via-loader'
 import { Route as NotFoundViaHeadRouteImport } from './routes/not-found/via-head'
 import { Route as NotFoundViaBeforeLoadRouteImport } from './routes/not-found/via-beforeLoad'
+import { Route as MultiCookieRedirectTargetRouteImport } from './routes/multi-cookie-redirect/target'
 import { Route as ApiUsersRouteImport } from './routes/api.users'
 import { Route as LayoutLayout2RouteImport } from './routes/_layout/_layout-2'
 import { Route as RedirectTargetIndexRouteImport } from './routes/redirect/$target/index'
@@ -139,6 +141,12 @@ const NotFoundIndexRoute = NotFoundIndexRouteImport.update({
   path: '/',
   getParentRoute: () => NotFoundRouteRoute,
 } as any)
+const MultiCookieRedirectIndexRoute =
+  MultiCookieRedirectIndexRouteImport.update({
+    id: '/multi-cookie-redirect/',
+    path: '/multi-cookie-redirect/',
+    getParentRoute: () => rootRouteImport,
+  } as any)
 const UsersUserIdRoute = UsersUserIdRouteImport.update({
   id: '/$userId',
   path: '/$userId',
@@ -180,6 +188,12 @@ const NotFoundViaBeforeLoadRoute = NotFoundViaBeforeLoadRouteImport.update({
   path: '/via-beforeLoad',
   getParentRoute: () => NotFoundRouteRoute,
 } as any)
+const MultiCookieRedirectTargetRoute =
+  MultiCookieRedirectTargetRouteImport.update({
+    id: '/multi-cookie-redirect/target',
+    path: '/multi-cookie-redirect/target',
+    getParentRoute: () => rootRouteImport,
+  } as any)
 const ApiUsersRoute = ApiUsersRouteImport.update({
   id: '/api/users',
   path: '/api/users',
@@ -277,6 +291,7 @@ export interface FileRoutesByFullPath {
   '/users': typeof UsersRouteWithChildren
   '/대한민국': typeof Char45824Char54620Char48124Char44397Route
   '/api/users': typeof ApiUsersRouteWithChildren
+  '/multi-cookie-redirect/target': typeof MultiCookieRedirectTargetRoute
   '/not-found/via-beforeLoad': typeof NotFoundViaBeforeLoadRoute
   '/not-found/via-head': typeof NotFoundViaHeadRoute
   '/not-found/via-loader': typeof NotFoundViaLoaderRoute
@@ -285,6 +300,7 @@ export interface FileRoutesByFullPath {
   '/search-params/default': typeof SearchParamsDefaultRoute
   '/search-params/loader-throws-redirect': typeof SearchParamsLoaderThrowsRedirectRoute
   '/users/$userId': typeof UsersUserIdRoute
+  '/multi-cookie-redirect': typeof MultiCookieRedirectIndexRoute
   '/not-found/': typeof NotFoundIndexRoute
   '/posts/': typeof PostsIndexRoute
   '/redirect': typeof RedirectIndexRoute
@@ -313,6 +329,7 @@ export interface FileRoutesByTo {
   '/stream': typeof StreamRoute
   '/대한민국': typeof Char45824Char54620Char48124Char44397Route
   '/api/users': typeof ApiUsersRouteWithChildren
+  '/multi-cookie-redirect/target': typeof MultiCookieRedirectTargetRoute
   '/not-found/via-beforeLoad': typeof NotFoundViaBeforeLoadRoute
   '/not-found/via-head': typeof NotFoundViaHeadRoute
   '/not-found/via-loader': typeof NotFoundViaLoaderRoute
@@ -320,6 +337,7 @@ export interface FileRoutesByTo {
   '/search-params/default': typeof SearchParamsDefaultRoute
   '/search-params/loader-throws-redirect': typeof SearchParamsLoaderThrowsRedirectRoute
   '/users/$userId': typeof UsersUserIdRoute
+  '/multi-cookie-redirect': typeof MultiCookieRedirectIndexRoute
   '/not-found': typeof NotFoundIndexRoute
   '/posts': typeof PostsIndexRoute
   '/redirect': typeof RedirectIndexRoute
@@ -354,6 +372,7 @@ export interface FileRoutesById {
   '/대한민국': typeof Char45824Char54620Char48124Char44397Route
   '/_layout/_layout-2': typeof LayoutLayout2RouteWithChildren
   '/api/users': typeof ApiUsersRouteWithChildren
+  '/multi-cookie-redirect/target': typeof MultiCookieRedirectTargetRoute
   '/not-found/via-beforeLoad': typeof NotFoundViaBeforeLoadRoute
   '/not-found/via-head': typeof NotFoundViaHeadRoute
   '/not-found/via-loader': typeof NotFoundViaLoaderRoute
@@ -362,6 +381,7 @@ export interface FileRoutesById {
   '/search-params/default': typeof SearchParamsDefaultRoute
   '/search-params/loader-throws-redirect': typeof SearchParamsLoaderThrowsRedirectRoute
   '/users/$userId': typeof UsersUserIdRoute
+  '/multi-cookie-redirect/': typeof MultiCookieRedirectIndexRoute
   '/not-found/': typeof NotFoundIndexRoute
   '/posts/': typeof PostsIndexRoute
   '/redirect/': typeof RedirectIndexRoute
@@ -397,6 +417,7 @@ export interface FileRouteTypes {
     | '/users'
     | '/대한민국'
     | '/api/users'
+    | '/multi-cookie-redirect/target'
     | '/not-found/via-beforeLoad'
     | '/not-found/via-head'
     | '/not-found/via-loader'
@@ -405,6 +426,7 @@ export interface FileRouteTypes {
     | '/search-params/default'
     | '/search-params/loader-throws-redirect'
     | '/users/$userId'
+    | '/multi-cookie-redirect'
     | '/not-found/'
     | '/posts/'
     | '/redirect'
@@ -433,6 +455,7 @@ export interface FileRouteTypes {
     | '/stream'
     | '/대한민국'
     | '/api/users'
+    | '/multi-cookie-redirect/target'
     | '/not-found/via-beforeLoad'
     | '/not-found/via-head'
     | '/not-found/via-loader'
@@ -440,6 +463,7 @@ export interface FileRouteTypes {
     | '/search-params/default'
     | '/search-params/loader-throws-redirect'
     | '/users/$userId'
+    | '/multi-cookie-redirect'
     | '/not-found'
     | '/posts'
     | '/redirect'
@@ -473,6 +497,7 @@ export interface FileRouteTypes {
     | '/대한민국'
     | '/_layout/_layout-2'
     | '/api/users'
+    | '/multi-cookie-redirect/target'
     | '/not-found/via-beforeLoad'
     | '/not-found/via-head'
     | '/not-found/via-loader'
@@ -481,6 +506,7 @@ export interface FileRouteTypes {
     | '/search-params/default'
     | '/search-params/loader-throws-redirect'
     | '/users/$userId'
+    | '/multi-cookie-redirect/'
     | '/not-found/'
     | '/posts/'
     | '/redirect/'
@@ -516,7 +542,9 @@ export interface RootRouteChildren {
   UsersRoute: typeof UsersRouteWithChildren
   Char45824Char54620Char48124Char44397Route: typeof Char45824Char54620Char48124Char44397Route
   ApiUsersRoute: typeof ApiUsersRouteWithChildren
+  MultiCookieRedirectTargetRoute: typeof MultiCookieRedirectTargetRoute
   RedirectTargetRoute: typeof RedirectTargetRouteWithChildren
+  MultiCookieRedirectIndexRoute: typeof MultiCookieRedirectIndexRoute
   RedirectIndexRoute: typeof RedirectIndexRoute
   PostsPostIdDeepRoute: typeof PostsPostIdDeepRoute
   FooBarQuxRoute: typeof FooBarQuxRouteWithChildren
@@ -643,6 +671,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof NotFoundIndexRouteImport
       parentRoute: typeof NotFoundRouteRoute
     }
+    '/multi-cookie-redirect/': {
+      id: '/multi-cookie-redirect/'
+      path: '/multi-cookie-redirect'
+      fullPath: '/multi-cookie-redirect'
+      preLoaderRoute: typeof MultiCookieRedirectIndexRouteImport
+      parentRoute: typeof rootRouteImport
+    }
     '/users/$userId': {
       id: '/users/$userId'
       path: '/$userId'
@@ -699,6 +734,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof NotFoundViaBeforeLoadRouteImport
       parentRoute: typeof NotFoundRouteRoute
     }
+    '/multi-cookie-redirect/target': {
+      id: '/multi-cookie-redirect/target'
+      path: '/multi-cookie-redirect/target'
+      fullPath: '/multi-cookie-redirect/target'
+      preLoaderRoute: typeof MultiCookieRedirectTargetRouteImport
+      parentRoute: typeof rootRouteImport
+    }
     '/api/users': {
       id: '/api/users'
       path: '/api/users'
@@ -973,7 +1015,9 @@ const rootRouteChildren: RootRouteChildren = {
   Char45824Char54620Char48124Char44397Route:
     Char45824Char54620Char48124Char44397Route,
   ApiUsersRoute: ApiUsersRouteWithChildren,
+  MultiCookieRedirectTargetRoute: MultiCookieRedirectTargetRoute,
   RedirectTargetRoute: RedirectTargetRouteWithChildren,
+  MultiCookieRedirectIndexRoute: MultiCookieRedirectIndexRoute,
   RedirectIndexRoute: RedirectIndexRoute,
   PostsPostIdDeepRoute: PostsPostIdDeepRoute,
   FooBarQuxRoute: FooBarQuxRouteWithChildren,
diff --git a/e2e/react-start/basic/src/routes/multi-cookie-redirect/index.tsx b/e2e/react-start/basic/src/routes/multi-cookie-redirect/index.tsx
new file mode 100644
index 0000000000..7ae4947aef
--- /dev/null
+++ b/e2e/react-start/basic/src/routes/multi-cookie-redirect/index.tsx
@@ -0,0 +1,18 @@
+import { createFileRoute, redirect } from '@tanstack/react-router'
+import { createServerFn } from '@tanstack/react-start'
+import { setCookie } from '@tanstack/react-start/server'
+
+const setMultipleCookiesAndRedirect = createServerFn().handler(() => {
+  // Set multiple cookies before redirecting
+  // This tests that multiple Set-Cookie headers are preserved during redirect
+  setCookie('session', 'session-value', { path: '/' })
+  setCookie('csrf', 'csrf-token-value', { path: '/' })
+  setCookie('theme', 'dark', { path: '/' })
+
+  throw redirect({ to: '/multi-cookie-redirect/target' })
+})
+
+export const Route = createFileRoute('/multi-cookie-redirect/')({
+  loader: () => setMultipleCookiesAndRedirect(),
+  component: () => null,
+})
diff --git a/e2e/react-start/basic/src/routes/multi-cookie-redirect/target.tsx b/e2e/react-start/basic/src/routes/multi-cookie-redirect/target.tsx
new file mode 100644
index 0000000000..3b0cb20bef
--- /dev/null
+++ b/e2e/react-start/basic/src/routes/multi-cookie-redirect/target.tsx
@@ -0,0 +1,39 @@
+import { createFileRoute } from '@tanstack/react-router'
+import Cookies from 'js-cookie'
+import React, { useEffect } from 'react'
+
+export const Route = createFileRoute('/multi-cookie-redirect/target')({
+  component: RouteComponent,
+})
+
+function RouteComponent() {
+  const [cookies, setCookies] = React.useState<Record<string, string>>({})
+
+  useEffect(() => {
+    setCookies({
+      session: Cookies.get('session') || '',
+      csrf: Cookies.get('csrf') || '',
+      theme: Cookies.get('theme') || '',
+    })
+  }, [])
+
+  return (
+    <div>
+      <h1 data-testid="multi-cookie-redirect-target">
+        Multi Cookie Redirect Target
+      </h1>
+      <div>
+        <p>
+          Session cookie:{' '}
+          <span data-testid="cookie-session">{cookies.session}</span>
+        </p>
+        <p>
+          CSRF cookie: <span data-testid="cookie-csrf">{cookies.csrf}</span>
+        </p>
+        <p>
+          Theme cookie: <span data-testid="cookie-theme">{cookies.theme}</span>
+        </p>
+      </div>
+    </div>
+  )
+}
diff --git a/e2e/react-start/basic/tests/redirect.spec.ts b/e2e/react-start/basic/tests/redirect.spec.ts
index 7fcaed8d73..bc36de9623 100644
--- a/e2e/react-start/basic/tests/redirect.spec.ts
+++ b/e2e/react-start/basic/tests/redirect.spec.ts
@@ -228,4 +228,23 @@ test.describe('redirects', () => {
       })
     })
   })
+
+  test('multiple Set-Cookie headers are preserved on redirect', async ({
+    page,
+  }) => {
+    // This test verifies that multiple Set-Cookie headers are not lost during redirect
+    await page.goto('/multi-cookie-redirect')
+
+    // Wait for redirect to complete
+    await page.waitForURL(/\/multi-cookie-redirect\/target/)
+
+    // Should redirect to target page
+    await expect(page.getByTestId('multi-cookie-redirect-target')).toBeVisible()
+    expect(page.url()).toContain('/multi-cookie-redirect/target')
+
+    // Verify all three cookies were preserved during the redirect
+    await expect(page.getByTestId('cookie-session')).toHaveText('session-value')
+    await expect(page.getByTestId('cookie-csrf')).toHaveText('csrf-token-value')
+    await expect(page.getByTestId('cookie-theme')).toHaveText('dark')
+  })
 })
diff --git a/e2e/solid-start/basic/package.json b/e2e/solid-start/basic/package.json
index 60c169339c..05789f8ccb 100644
--- a/e2e/solid-start/basic/package.json
+++ b/e2e/solid-start/basic/package.json
@@ -26,6 +26,7 @@
     "@tanstack/solid-start": "workspace:^",
     "express": "^5.1.0",
     "http-proxy-middleware": "^3.0.5",
+    "js-cookie": "^3.0.5",
     "redaxios": "^0.5.1",
     "solid-js": "^1.9.10",
     "tailwind-merge": "^2.6.0",
@@ -36,6 +37,7 @@
     "@playwright/test": "^1.50.1",
     "@tailwindcss/postcss": "^4.1.15",
     "@tanstack/router-e2e-utils": "workspace:^",
+    "@types/js-cookie": "^3.0.6",
     "@types/node": "^22.10.2",
     "combinate": "^1.1.11",
     "postcss": "^8.5.1",
diff --git a/e2e/solid-start/basic/src/routeTree.gen.ts b/e2e/solid-start/basic/src/routeTree.gen.ts
index f1ecc1d149..9919aecb00 100644
--- a/e2e/solid-start/basic/src/routeTree.gen.ts
+++ b/e2e/solid-start/basic/src/routeTree.gen.ts
@@ -26,6 +26,7 @@ import { Route as SearchParamsIndexRouteImport } from './routes/search-params/in
 import { Route as RedirectIndexRouteImport } from './routes/redirect/index'
 import { Route as PostsIndexRouteImport } from './routes/posts.index'
 import { Route as NotFoundIndexRouteImport } from './routes/not-found/index'
+import { Route as MultiCookieRedirectIndexRouteImport } from './routes/multi-cookie-redirect/index'
 import { Route as UsersUserIdRouteImport } from './routes/users.$userId'
 import { Route as SearchParamsLoaderThrowsRedirectRouteImport } from './routes/search-params/loader-throws-redirect'
 import { Route as SearchParamsDefaultRouteImport } from './routes/search-params/default'
@@ -34,6 +35,7 @@ import { Route as PostsPostIdRouteImport } from './routes/posts.$postId'
 import { Route as NotFoundViaLoaderRouteImport } from './routes/not-found/via-loader'
 import { Route as NotFoundViaHeadRouteImport } from './routes/not-found/via-head'
 import { Route as NotFoundViaBeforeLoadRouteImport } from './routes/not-found/via-beforeLoad'
+import { Route as MultiCookieRedirectTargetRouteImport } from './routes/multi-cookie-redirect/target'
 import { Route as ApiUsersRouteImport } from './routes/api/users'
 import { Route as LayoutLayout2RouteImport } from './routes/_layout/_layout-2'
 import { Route as RedirectTargetIndexRouteImport } from './routes/redirect/$target/index'
@@ -135,6 +137,12 @@ const NotFoundIndexRoute = NotFoundIndexRouteImport.update({
   path: '/',
   getParentRoute: () => NotFoundRouteRoute,
 } as any)
+const MultiCookieRedirectIndexRoute =
+  MultiCookieRedirectIndexRouteImport.update({
+    id: '/multi-cookie-redirect/',
+    path: '/multi-cookie-redirect/',
+    getParentRoute: () => rootRouteImport,
+  } as any)
 const UsersUserIdRoute = UsersUserIdRouteImport.update({
   id: '/$userId',
   path: '/$userId',
@@ -176,6 +184,12 @@ const NotFoundViaBeforeLoadRoute = NotFoundViaBeforeLoadRouteImport.update({
   path: '/via-beforeLoad',
   getParentRoute: () => NotFoundRouteRoute,
 } as any)
+const MultiCookieRedirectTargetRoute =
+  MultiCookieRedirectTargetRouteImport.update({
+    id: '/multi-cookie-redirect/target',
+    path: '/multi-cookie-redirect/target',
+    getParentRoute: () => rootRouteImport,
+  } as any)
 const ApiUsersRoute = ApiUsersRouteImport.update({
   id: '/api/users',
   path: '/api/users',
@@ -271,6 +285,7 @@ export interface FileRoutesByFullPath {
   '/users': typeof UsersRouteWithChildren
   '/대한민국': typeof Char45824Char54620Char48124Char44397Route
   '/api/users': typeof ApiUsersRouteWithChildren
+  '/multi-cookie-redirect/target': typeof MultiCookieRedirectTargetRoute
   '/not-found/via-beforeLoad': typeof NotFoundViaBeforeLoadRoute
   '/not-found/via-head': typeof NotFoundViaHeadRoute
   '/not-found/via-loader': typeof NotFoundViaLoaderRoute
@@ -279,6 +294,7 @@ export interface FileRoutesByFullPath {
   '/search-params/default': typeof SearchParamsDefaultRoute
   '/search-params/loader-throws-redirect': typeof SearchParamsLoaderThrowsRedirectRoute
   '/users/$userId': typeof UsersUserIdRoute
+  '/multi-cookie-redirect': typeof MultiCookieRedirectIndexRoute
   '/not-found/': typeof NotFoundIndexRoute
   '/posts/': typeof PostsIndexRoute
   '/redirect': typeof RedirectIndexRoute
@@ -307,6 +323,7 @@ export interface FileRoutesByTo {
   '/stream': typeof StreamRoute
   '/대한민국': typeof Char45824Char54620Char48124Char44397Route
   '/api/users': typeof ApiUsersRouteWithChildren
+  '/multi-cookie-redirect/target': typeof MultiCookieRedirectTargetRoute
   '/not-found/via-beforeLoad': typeof NotFoundViaBeforeLoadRoute
   '/not-found/via-head': typeof NotFoundViaHeadRoute
   '/not-found/via-loader': typeof NotFoundViaLoaderRoute
@@ -314,6 +331,7 @@ export interface FileRoutesByTo {
   '/search-params/default': typeof SearchParamsDefaultRoute
   '/search-params/loader-throws-redirect': typeof SearchParamsLoaderThrowsRedirectRoute
   '/users/$userId': typeof UsersUserIdRoute
+  '/multi-cookie-redirect': typeof MultiCookieRedirectIndexRoute
   '/not-found': typeof NotFoundIndexRoute
   '/posts': typeof PostsIndexRoute
   '/redirect': typeof RedirectIndexRoute
@@ -349,6 +367,7 @@ export interface FileRoutesById {
   '/대한민국': typeof Char45824Char54620Char48124Char44397Route
   '/_layout/_layout-2': typeof LayoutLayout2RouteWithChildren
   '/api/users': typeof ApiUsersRouteWithChildren
+  '/multi-cookie-redirect/target': typeof MultiCookieRedirectTargetRoute
   '/not-found/via-beforeLoad': typeof NotFoundViaBeforeLoadRoute
   '/not-found/via-head': typeof NotFoundViaHeadRoute
   '/not-found/via-loader': typeof NotFoundViaLoaderRoute
@@ -357,6 +376,7 @@ export interface FileRoutesById {
   '/search-params/default': typeof SearchParamsDefaultRoute
   '/search-params/loader-throws-redirect': typeof SearchParamsLoaderThrowsRedirectRoute
   '/users/$userId': typeof UsersUserIdRoute
+  '/multi-cookie-redirect/': typeof MultiCookieRedirectIndexRoute
   '/not-found/': typeof NotFoundIndexRoute
   '/posts/': typeof PostsIndexRoute
   '/redirect/': typeof RedirectIndexRoute
@@ -391,6 +411,7 @@ export interface FileRouteTypes {
     | '/users'
     | '/대한민국'
     | '/api/users'
+    | '/multi-cookie-redirect/target'
     | '/not-found/via-beforeLoad'
     | '/not-found/via-head'
     | '/not-found/via-loader'
@@ -399,6 +420,7 @@ export interface FileRouteTypes {
     | '/search-params/default'
     | '/search-params/loader-throws-redirect'
     | '/users/$userId'
+    | '/multi-cookie-redirect'
     | '/not-found/'
     | '/posts/'
     | '/redirect'
@@ -427,6 +449,7 @@ export interface FileRouteTypes {
     | '/stream'
     | '/대한민국'
     | '/api/users'
+    | '/multi-cookie-redirect/target'
     | '/not-found/via-beforeLoad'
     | '/not-found/via-head'
     | '/not-found/via-loader'
@@ -434,6 +457,7 @@ export interface FileRouteTypes {
     | '/search-params/default'
     | '/search-params/loader-throws-redirect'
     | '/users/$userId'
+    | '/multi-cookie-redirect'
     | '/not-found'
     | '/posts'
     | '/redirect'
@@ -468,6 +492,7 @@ export interface FileRouteTypes {
     | '/대한민국'
     | '/_layout/_layout-2'
     | '/api/users'
+    | '/multi-cookie-redirect/target'
     | '/not-found/via-beforeLoad'
     | '/not-found/via-head'
     | '/not-found/via-loader'
@@ -476,6 +501,7 @@ export interface FileRouteTypes {
     | '/search-params/default'
     | '/search-params/loader-throws-redirect'
     | '/users/$userId'
+    | '/multi-cookie-redirect/'
     | '/not-found/'
     | '/posts/'
     | '/redirect/'
@@ -510,7 +536,9 @@ export interface RootRouteChildren {
   UsersRoute: typeof UsersRouteWithChildren
   Char45824Char54620Char48124Char44397Route: typeof Char45824Char54620Char48124Char44397Route
   ApiUsersRoute: typeof ApiUsersRouteWithChildren
+  MultiCookieRedirectTargetRoute: typeof MultiCookieRedirectTargetRoute
   RedirectTargetRoute: typeof RedirectTargetRouteWithChildren
+  MultiCookieRedirectIndexRoute: typeof MultiCookieRedirectIndexRoute
   RedirectIndexRoute: typeof RedirectIndexRoute
   PostsPostIdDeepRoute: typeof PostsPostIdDeepRoute
   TransitionCountCreateResourceRoute: typeof TransitionCountCreateResourceRoute
@@ -638,6 +666,13 @@ declare module '@tanstack/solid-router' {
       preLoaderRoute: typeof NotFoundIndexRouteImport
       parentRoute: typeof NotFoundRouteRoute
     }
+    '/multi-cookie-redirect/': {
+      id: '/multi-cookie-redirect/'
+      path: '/multi-cookie-redirect'
+      fullPath: '/multi-cookie-redirect'
+      preLoaderRoute: typeof MultiCookieRedirectIndexRouteImport
+      parentRoute: typeof rootRouteImport
+    }
     '/users/$userId': {
       id: '/users/$userId'
       path: '/$userId'
@@ -694,6 +729,13 @@ declare module '@tanstack/solid-router' {
       preLoaderRoute: typeof NotFoundViaBeforeLoadRouteImport
       parentRoute: typeof NotFoundRouteRoute
     }
+    '/multi-cookie-redirect/target': {
+      id: '/multi-cookie-redirect/target'
+      path: '/multi-cookie-redirect/target'
+      fullPath: '/multi-cookie-redirect/target'
+      preLoaderRoute: typeof MultiCookieRedirectTargetRouteImport
+      parentRoute: typeof rootRouteImport
+    }
     '/api/users': {
       id: '/api/users'
       path: '/api/users'
@@ -937,7 +979,9 @@ const rootRouteChildren: RootRouteChildren = {
   Char45824Char54620Char48124Char44397Route:
     Char45824Char54620Char48124Char44397Route,
   ApiUsersRoute: ApiUsersRouteWithChildren,
+  MultiCookieRedirectTargetRoute: MultiCookieRedirectTargetRoute,
   RedirectTargetRoute: RedirectTargetRouteWithChildren,
+  MultiCookieRedirectIndexRoute: MultiCookieRedirectIndexRoute,
   RedirectIndexRoute: RedirectIndexRoute,
   PostsPostIdDeepRoute: PostsPostIdDeepRoute,
   TransitionCountCreateResourceRoute: TransitionCountCreateResourceRoute,
diff --git a/e2e/solid-start/basic/src/routes/multi-cookie-redirect/index.tsx b/e2e/solid-start/basic/src/routes/multi-cookie-redirect/index.tsx
new file mode 100644
index 0000000000..a7abb3b009
--- /dev/null
+++ b/e2e/solid-start/basic/src/routes/multi-cookie-redirect/index.tsx
@@ -0,0 +1,18 @@
+import { createFileRoute, redirect } from '@tanstack/solid-router'
+import { createServerFn } from '@tanstack/solid-start'
+import { setCookie } from '@tanstack/solid-start/server'
+
+const setMultipleCookiesAndRedirect = createServerFn().handler(() => {
+  // Set multiple cookies before redirecting
+  // This tests that multiple Set-Cookie headers are preserved during redirect
+  setCookie('session', 'session-value', { path: '/' })
+  setCookie('csrf', 'csrf-token-value', { path: '/' })
+  setCookie('theme', 'dark', { path: '/' })
+
+  throw redirect({ to: '/multi-cookie-redirect/target' })
+})
+
+export const Route = createFileRoute('/multi-cookie-redirect/')({
+  loader: () => setMultipleCookiesAndRedirect(),
+  component: () => null,
+})
diff --git a/e2e/solid-start/basic/src/routes/multi-cookie-redirect/target.tsx b/e2e/solid-start/basic/src/routes/multi-cookie-redirect/target.tsx
new file mode 100644
index 0000000000..1ebd4ecb39
--- /dev/null
+++ b/e2e/solid-start/basic/src/routes/multi-cookie-redirect/target.tsx
@@ -0,0 +1,40 @@
+import { createFileRoute } from '@tanstack/solid-router'
+import Cookies from 'js-cookie'
+import * as Solid from 'solid-js'
+
+export const Route = createFileRoute('/multi-cookie-redirect/target')({
+  component: RouteComponent,
+})
+
+function RouteComponent() {
+  const [cookies, setCookies] = Solid.createSignal<Record<string, string>>({})
+
+  Solid.onMount(() => {
+    setCookies({
+      session: Cookies.get('session') || '',
+      csrf: Cookies.get('csrf') || '',
+      theme: Cookies.get('theme') || '',
+    })
+  })
+
+  return (
+    <div>
+      <h1 data-testid="multi-cookie-redirect-target">
+        Multi Cookie Redirect Target
+      </h1>
+      <div>
+        <p>
+          Session cookie:{' '}
+          <span data-testid="cookie-session">{cookies().session}</span>
+        </p>
+        <p>
+          CSRF cookie: <span data-testid="cookie-csrf">{cookies().csrf}</span>
+        </p>
+        <p>
+          Theme cookie:{' '}
+          <span data-testid="cookie-theme">{cookies().theme}</span>
+        </p>
+      </div>
+    </div>
+  )
+}
diff --git a/e2e/solid-start/basic/tests/redirect.spec.ts b/e2e/solid-start/basic/tests/redirect.spec.ts
index 60fd3df329..b52ce026af 100644
--- a/e2e/solid-start/basic/tests/redirect.spec.ts
+++ b/e2e/solid-start/basic/tests/redirect.spec.ts
@@ -211,4 +211,23 @@ test.describe('redirects', () => {
       }
     })
   })
+
+  test('multiple Set-Cookie headers are preserved on redirect', async ({
+    page,
+  }) => {
+    // This test verifies that multiple Set-Cookie headers are not lost during redirect
+    await page.goto('/multi-cookie-redirect')
+
+    // Wait for redirect to complete
+    await page.waitForURL(/\/multi-cookie-redirect\/target/)
+
+    // Should redirect to target page
+    await expect(page.getByTestId('multi-cookie-redirect-target')).toBeVisible()
+    expect(page.url()).toContain('/multi-cookie-redirect/target')
+
+    // Verify all three cookies were preserved during the redirect
+    await expect(page.getByTestId('cookie-session')).toHaveText('session-value')
+    await expect(page.getByTestId('cookie-csrf')).toHaveText('csrf-token-value')
+    await expect(page.getByTestId('cookie-theme')).toHaveText('dark')
+  })
 })
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ab8840a37c..b764c63d15 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1054,6 +1054,9 @@ importers:
       http-proxy-middleware:
         specifier: ^3.0.5
         version: 3.0.5
+      js-cookie:
+        specifier: ^3.0.5
+        version: 3.0.5
       react:
         specifier: ^19.2.0
         version: 19.2.0
@@ -1076,6 +1079,9 @@ importers:
       '@tanstack/router-e2e-utils':
         specifier: workspace:^
         version: link:../../e2e-utils
+      '@types/js-cookie':
+        specifier: ^3.0.6
+        version: 3.0.6
       '@types/node':
         specifier: 22.10.2
         version: 22.10.2
@@ -2802,6 +2808,9 @@ importers:
       http-proxy-middleware:
         specifier: ^3.0.5
         version: 3.0.5
+      js-cookie:
+        specifier: ^3.0.5
+        version: 3.0.5
       redaxios:
         specifier: ^0.5.1
         version: 0.5.1
@@ -2827,6 +2836,9 @@ importers:
       '@tanstack/router-e2e-utils':
         specifier: workspace:^
         version: link:../../e2e-utils
+      '@types/js-cookie':
+        specifier: ^3.0.6
+        version: 3.0.6
       '@types/node':
         specifier: 22.10.2
         version: 22.10.2