diff --git a/validator/remote/src/integration-test/java/tech/pegasys/teku/validator/remote/typedef/handlers/SendSignedAttestationsRequestTest.java b/validator/remote/src/integration-test/java/tech/pegasys/teku/validator/remote/typedef/handlers/SendSignedAttestationsRequestTest.java
index 52cee239506..6123a8dfe86 100644
--- a/validator/remote/src/integration-test/java/tech/pegasys/teku/validator/remote/typedef/handlers/SendSignedAttestationsRequestTest.java
+++ b/validator/remote/src/integration-test/java/tech/pegasys/teku/validator/remote/typedef/handlers/SendSignedAttestationsRequestTest.java
@@ -117,5 +117,7 @@ void shouldUseV2ApiWhenUseAttestationsV2ApisEnabled()
     assertThat(recordedRequest.getMethod()).isEqualTo("POST");
     assertThat(recordedRequest.getPath())
         .contains(ValidatorApiMethod.SEND_SIGNED_ATTESTATION_V2.getPath(emptyMap()));
+    assertThat(recordedRequest.getHeader(HEADER_CONSENSUS_VERSION))
+        .isEqualTo(specMilestone.name().toLowerCase(Locale.ROOT));
   }
 }
diff --git a/validator/remote/src/integration-test/java/tech/pegasys/teku/validator/remote/typedef/handlers/SendSignedBlockRequestTest.java b/validator/remote/src/integration-test/java/tech/pegasys/teku/validator/remote/typedef/handlers/SendSignedBlockRequestTest.java
new file mode 100644
index 00000000000..fd5817d4a8e
--- /dev/null
+++ b/validator/remote/src/integration-test/java/tech/pegasys/teku/validator/remote/typedef/handlers/SendSignedBlockRequestTest.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright Consensys Software Inc., 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+
+package tech.pegasys.teku.validator.remote.typedef.handlers;
+
+import static java.util.Collections.emptyMap;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static tech.pegasys.teku.infrastructure.http.HttpStatusCodes.SC_BAD_REQUEST;
+import static tech.pegasys.teku.infrastructure.http.HttpStatusCodes.SC_INTERNAL_SERVER_ERROR;
+import static tech.pegasys.teku.infrastructure.http.HttpStatusCodes.SC_OK;
+import static tech.pegasys.teku.infrastructure.http.RestApiConstants.HEADER_CONSENSUS_VERSION;
+
+import java.util.Locale;
+import okhttp3.mockwebserver.MockResponse;
+import okhttp3.mockwebserver.RecordedRequest;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.TestTemplate;
+import tech.pegasys.teku.api.exceptions.RemoteServiceNotAvailableException;
+import tech.pegasys.teku.spec.SpecMilestone;
+import tech.pegasys.teku.spec.TestSpecContext;
+import tech.pegasys.teku.spec.datastructures.blocks.SignedBlockContainer;
+import tech.pegasys.teku.spec.datastructures.validator.BroadcastValidationLevel;
+import tech.pegasys.teku.spec.networks.Eth2Network;
+import tech.pegasys.teku.validator.remote.apiclient.ValidatorApiMethod;
+import tech.pegasys.teku.validator.remote.typedef.AbstractTypeDefRequestTestBase;
+
+@TestSpecContext(
+    milestone = {
+      SpecMilestone.BELLATRIX,
+      SpecMilestone.CAPELLA,
+      SpecMilestone.DENEB,
+      SpecMilestone.ELECTRA
+    },
+    network = Eth2Network.MINIMAL)
+public class SendSignedBlockRequestTest extends AbstractTypeDefRequestTestBase {
+  private SignedBlockContainer block;
+  private SendSignedBlockRequest request;
+
+  @BeforeEach
+  public void setup() {
+    request = new SendSignedBlockRequest(spec, mockWebServer.url("/"), okHttpClient, true);
+    this.block =
+        specMilestone.isGreaterThanOrEqualTo(SpecMilestone.DENEB)
+            ? dataStructureUtil.randomSignedBlockContents()
+            : dataStructureUtil.randomSignedBeaconBlock();
+  }
+
+  @TestTemplate
+  public void shouldIncludeConsensusHeaderInJsonRequest() throws InterruptedException {
+    request = new SendSignedBlockRequest(spec, mockWebServer.url("/"), okHttpClient, false);
+    mockWebServer.enqueue(new MockResponse().setResponseCode(SC_OK));
+
+    request.submit(block, BroadcastValidationLevel.NOT_REQUIRED);
+
+    final RecordedRequest recordedRequest = mockWebServer.takeRequest();
+    assertThat(recordedRequest.getMethod()).isEqualTo("POST");
+    assertThat(recordedRequest.getPath())
+        .contains(ValidatorApiMethod.SEND_SIGNED_BLOCK_V2.getPath(emptyMap()));
+    assertThat(recordedRequest.getHeader(HEADER_CONSENSUS_VERSION))
+        .isEqualTo(specMilestone.name().toLowerCase(Locale.ROOT));
+    assertThat(recordedRequest.getHeader("Content-Type")).contains("json");
+  }
+
+  @TestTemplate
+  public void shouldIncludeConsensusHeaderInSszRequest() throws InterruptedException {
+    mockWebServer.enqueue(new MockResponse().setResponseCode(SC_OK));
+
+    request.submit(block, BroadcastValidationLevel.NOT_REQUIRED);
+
+    final RecordedRequest recordedRequest = mockWebServer.takeRequest();
+    assertThat(recordedRequest.getMethod()).isEqualTo("POST");
+    assertThat(recordedRequest.getPath())
+        .contains(ValidatorApiMethod.SEND_SIGNED_BLOCK_V2.getPath(emptyMap()));
+    assertThat(recordedRequest.getHeader(HEADER_CONSENSUS_VERSION))
+        .isEqualTo(specMilestone.name().toLowerCase(Locale.ROOT));
+    assertThat(recordedRequest.getHeader("Content-Type")).contains("octet");
+  }
+
+  @TestTemplate
+  void handle500() {
+    mockWebServer.enqueue(new MockResponse().setResponseCode(SC_INTERNAL_SERVER_ERROR));
+    assertThatThrownBy(() -> request.submit(block, BroadcastValidationLevel.NOT_REQUIRED))
+        .isInstanceOf(RemoteServiceNotAvailableException.class);
+  }
+
+  @TestTemplate
+  void handle400() {
+    mockWebServer.enqueue(
+        new MockResponse()
+            .setResponseCode(SC_BAD_REQUEST)
+            .setBody("{\"code\": 400,\"message\": \"z\"}"));
+    assertThatThrownBy(() -> request.submit(block, BroadcastValidationLevel.NOT_REQUIRED))
+        .isInstanceOf(IllegalArgumentException.class)
+        .hasMessageStartingWith("Invalid params response from Beacon Node API");
+  }
+}