diff --git a/.changes/3bc2e0a5-d8d4-4051-a723-a54427a96e7e.json b/.changes/3bc2e0a5-d8d4-4051-a723-a54427a96e7e.json
new file mode 100644
index 00000000000..3a752b368dc
--- /dev/null
+++ b/.changes/3bc2e0a5-d8d4-4051-a723-a54427a96e7e.json
@@ -0,0 +1,5 @@
+{
+    "id": "3bc2e0a5-d8d4-4051-a723-a54427a96e7e",
+    "type": "feature",
+    "description": "Enable configuring an HTTP engine on `ImdsClient`"
+}
\ No newline at end of file
diff --git a/aws-runtime/aws-config/api/aws-config.api b/aws-runtime/aws-config/api/aws-config.api
index 9b55244e258..6d6878eb35f 100644
--- a/aws-runtime/aws-config/api/aws-config.api
+++ b/aws-runtime/aws-config/api/aws-config.api
@@ -418,10 +418,12 @@ public final class aws/sdk/kotlin/runtime/config/imds/ImdsClient : aws/sdk/kotli
 public final class aws/sdk/kotlin/runtime/config/imds/ImdsClient$Builder {
 	public fun <init> ()V
 	public final fun getEndpointConfiguration ()Laws/sdk/kotlin/runtime/config/imds/EndpointConfiguration;
+	public final fun getEngine ()Laws/smithy/kotlin/runtime/http/engine/HttpClientEngine;
 	public final fun getLogMode ()Laws/smithy/kotlin/runtime/client/LogMode;
 	public final fun getMaxRetries ()I
 	public final fun getTokenTtl-UwyO8pc ()J
 	public final fun setEndpointConfiguration (Laws/sdk/kotlin/runtime/config/imds/EndpointConfiguration;)V
+	public final fun setEngine (Laws/smithy/kotlin/runtime/http/engine/HttpClientEngine;)V
 	public final fun setLogMode (Laws/smithy/kotlin/runtime/client/LogMode;)V
 	public final fun setMaxRetries (I)V
 	public final fun setTokenTtl-LRDsOJo (J)V
diff --git a/aws-runtime/aws-config/common/src/aws/sdk/kotlin/runtime/config/imds/ImdsClient.kt b/aws-runtime/aws-config/common/src/aws/sdk/kotlin/runtime/config/imds/ImdsClient.kt
index ac4cbf9549b..1f0b5e0f046 100644
--- a/aws-runtime/aws-config/common/src/aws/sdk/kotlin/runtime/config/imds/ImdsClient.kt
+++ b/aws-runtime/aws-config/common/src/aws/sdk/kotlin/runtime/config/imds/ImdsClient.kt
@@ -172,9 +172,9 @@ public class ImdsClient private constructor(builder: Builder) : InstanceMetadata
         public var logMode: LogMode = LogMode.Default
 
         /**
-         * The HTTP engine to use to make requests with. This is here to facilitate testing and can otherwise be ignored
+         * The HTTP engine to use to make requests with
          */
-        internal var engine: HttpClientEngine? = null
+        public var engine: HttpClientEngine? = null
 
         /**
          * The source of time for token refreshes. This is here to facilitate testing and can otherwise be ignored