diff --git a/packages/kv/src/namespace.ts b/packages/kv/src/namespace.ts
index 14518cd91..439d86e14 100644
--- a/packages/kv/src/namespace.ts
+++ b/packages/kv/src/namespace.ts
@@ -16,6 +16,8 @@ import {
 } from "@miniflare/shared";
 
 const MIN_CACHE_TTL = 60; /* 60s */
+const MIN_EXPIRATION = -2147483648; /* Minimum signed 32-bit integer */
+const MAX_EXPIRATION = 2147483647; /* Maximum signed 32-bit integer */
 const MAX_LIST_KEYS = 1000;
 const MAX_KEY_SIZE = 512; /* 512B */
 const MAX_VALUE_SIZE = 25 * 1024 * 1024; /* 25MiB */
@@ -289,6 +291,12 @@ export class KVNamespace {
     let expiration = normaliseInt(options.expiration);
     const expirationTtl = normaliseInt(options.expirationTtl);
     if (expirationTtl !== undefined) {
+      if (expirationTtl < MIN_EXPIRATION || expirationTtl > MAX_EXPIRATION) {
+        // Workers throws like this without the extra sugar when the value is out of bounds, and throws before checking the value itself.
+        throw new TypeError(
+          `Value out of range. Must be between ${MIN_EXPIRATION} and ${MAX_EXPIRATION} (inclusive).`
+        );
+      }
       if (isNaN(expirationTtl) || expirationTtl <= 0) {
         throwKVError(
           "PUT",
@@ -305,6 +313,12 @@ export class KVNamespace {
       }
       expiration = now + expirationTtl;
     } else if (expiration !== undefined) {
+      if (expiration < MIN_EXPIRATION || expiration > MAX_EXPIRATION) {
+        // Workers throws like this without the extra sugar when the value is out of bounds, and throws before checking the value itself.
+        throw new TypeError(
+          `Value out of range. Must be between ${MIN_EXPIRATION} and ${MAX_EXPIRATION} (inclusive).`
+        );
+      }
       if (isNaN(expiration) || expiration <= now) {
         throwKVError(
           "PUT",
diff --git a/packages/kv/test/namespace.spec.ts b/packages/kv/test/namespace.spec.ts
index 8b6b8a27f..cdcfd89c6 100644
--- a/packages/kv/test/namespace.spec.ts
+++ b/packages/kv/test/namespace.spec.ts
@@ -467,6 +467,16 @@ test("put: validates expiration ttl", async (t) => {
     message:
       "KV PUT failed: 400 Invalid expiration_ttl of 30. Expiration TTL must be at least 60.",
   });
+  await t.throwsAsync(ns.put("key", "value", { expirationTtl: 2147483648 }), {
+    instanceOf: TypeError,
+    message:
+      "Value out of range. Must be between -2147483648 and 2147483647 (inclusive).",
+  });
+  await t.throwsAsync(ns.put("key", "value", { expirationTtl: -2147483649 }), {
+    instanceOf: TypeError,
+    message:
+      "Value out of range. Must be between -2147483648 and 2147483647 (inclusive).",
+  });
 });
 test("put: validates expiration", async (t) => {
   const { ns } = t.context;
@@ -486,6 +496,16 @@ test("put: validates expiration", async (t) => {
     message:
       "KV PUT failed: 400 Invalid expiration of 780. Expiration times must be at least 60 seconds in the future.",
   });
+  await t.throwsAsync(ns.put("key", "value", { expiration: 2147483648 }), {
+    instanceOf: TypeError,
+    message:
+      "Value out of range. Must be between -2147483648 and 2147483647 (inclusive).",
+  });
+  await t.throwsAsync(ns.put("key", "value", { expiration: -2147483649 }), {
+    instanceOf: TypeError,
+    message:
+      "Value out of range. Must be between -2147483648 and 2147483647 (inclusive).",
+  });
 });
 test("put: validates value size", async (t) => {
   const { ns } = t.context;