diff --git a/CHANGELOG.md b/CHANGELOG.md
index d36ca1c038..0521e81ced 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,12 +4,15 @@
 
 ### 🚀 New components 🚀
 
+
+- (Splunk) Add headersetterextension ([#5276](https://github.com/signalfx/splunk-otel-collector/pull/5276))
 - (Splunk) Add `nginx` receiver ([5229](https://github.com/signalfx/splunk-otel-collector/pull/5229))
 
 ### 💡 Enhancements 💡
 
 - (Splunk) Update JMX Metric Gatherer to [v1.37.0](https://github.com/open-telemetry/opentelemetry-java-contrib/releases/tag/v1.37.0) ([#5240](https://github.com/signalfx/splunk-otel-collector/pull/5240))
 
+
 ## v0.107.0
 
 This Splunk OpenTelemetry Collector release includes changes from the [opentelemetry-collector v0.107.0](https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.107.0) and the [opentelemetry-collector-contrib v0.107.0](https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.107.0) releases where appropriate.
diff --git a/docs/components.md b/docs/components.md
index 37d2b796ba..597a43c2b1 100644
--- a/docs/components.md
+++ b/docs/components.md
@@ -121,23 +121,24 @@ The distribution offers support for the following components.
 
 <div>
 
-| Extensions                                                                                                                          | Stability |
-| :---------------------------------------------------------------------------------------------------------------------------------- | :-------- |
-| [ack](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/ackextension)                           | [alpha]   |
-| [basicauth](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/basicauthextension)               | [beta]    |
-| [docker_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/dockerobserver)    | [beta]    |
-| [ecs_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/ecsobserver)          | [beta]    |
-| [ecs_task_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/ecstaskobserver) | [beta]    |
-| [healthcheck](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/healthcheckextension)           | [beta]    |
-| [httpforwarder](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/httpforwarderextension)       | [beta]    |
-| [host_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/hostobserver)        | [beta]    |
-| [k8s_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/k8sobserver)          | [beta]    |
-| [oauth2clientauth](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/oauth2clientauthextension) | [beta]    |
-| [pprof](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/pprofextension)                       | [beta]    |
-| [smartagent](../pkg/extension/smartagentextension)                                                                                  | [beta]    |
-| [zpages](https://github.com/open-telemetry/opentelemetry-collector/tree/main/extension/zpagesextension)                             | [beta]    |
-| [file_storage](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/storage/filestorage)           | [beta]    |
-| [ballast](https://github.com/open-telemetry/opentelemetry-collector/tree/main/extension/ballastextension)                           | [beta]    |
+| Extensions                                                                                                                             | Stability |
+| :----------------------------------------------------------------------------------------------------------------------------------    | :-------- |
+| [ack](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/ackextension)                              | [alpha]   |
+| [basicauth](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/basicauthextension)                  | [beta]    |
+| [docker_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/dockerobserver)       | [beta]    |
+| [ecs_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/ecsobserver)             | [beta]    |
+| [ecs_task_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/ecstaskobserver)    | [beta]    |
+| [headerssetterextension](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/headerssetterextension) | [alpha]   |
+| [healthcheck](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/healthcheckextension)              | [beta]    |
+| [httpforwarder](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/httpforwarderextension)          | [beta]    |
+| [host_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/hostobserver)           | [beta]    |
+| [k8s_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/k8sobserver)             | [beta]    |
+| [oauth2clientauth](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/oauth2clientauthextension)    | [beta]    |
+| [pprof](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/pprofextension)                          | [beta]    |
+| [smartagent](../pkg/extension/smartagentextension)                                                                                     | [beta]    |
+| [zpages](https://github.com/open-telemetry/opentelemetry-collector/tree/main/extension/zpagesextension)                                | [beta]    |
+| [file_storage](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/storage/filestorage)              | [beta]    |
+| [ballast](https://github.com/open-telemetry/opentelemetry-collector/tree/main/extension/ballastextension)                              | [beta]    |
 
 </div>
 
diff --git a/go.mod b/go.mod
index 8dc5d7887c..c8a21d907b 100644
--- a/go.mod
+++ b/go.mod
@@ -30,6 +30,7 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/exporter/splunkhecexporter v0.107.1-0.20240816183440-44ef4d6c5a2c
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/ackextension v0.107.1-0.20240816183440-44ef4d6c5a2c
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/basicauthextension v0.107.1-0.20240816183440-44ef4d6c5a2c
+	github.com/open-telemetry/opentelemetry-collector-contrib/extension/headerssetterextension v0.107.1-0.20240816183440-44ef4d6c5a2c
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/healthcheckextension v0.107.1-0.20240816183440-44ef4d6c5a2c
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/httpforwarderextension v0.107.1-0.20240816183440-44ef4d6c5a2c
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/oauth2clientauthextension v0.107.1-0.20240816183440-44ef4d6c5a2c
diff --git a/go.sum b/go.sum
index 398368087b..ada211773e 100644
--- a/go.sum
+++ b/go.sum
@@ -1257,6 +1257,8 @@ github.com/open-telemetry/opentelemetry-collector-contrib/extension/encoding v0.
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/encoding v0.107.1-0.20240816183440-44ef4d6c5a2c/go.mod h1:X2bAEz6UoWiPB0DuY/14DCXhepls3zfwjnOrvApFnKA=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/encoding/otlpencodingextension v0.107.1-0.20240816183440-44ef4d6c5a2c h1:/Wzii6Xww/0K+c0ZMrnLNw990zMsscj1/9x3xiiZv8s=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/encoding/otlpencodingextension v0.107.1-0.20240816183440-44ef4d6c5a2c/go.mod h1:U4Jxpz0NC13XyODFAK3JBVNalsm+2RAJzM6A/lcf1N0=
+github.com/open-telemetry/opentelemetry-collector-contrib/extension/headerssetterextension v0.107.1-0.20240816183440-44ef4d6c5a2c h1:A5zkSwazb0Zj1zuB77VrrIpMDlLnALcAm1d7/Lmy/Ec=
+github.com/open-telemetry/opentelemetry-collector-contrib/extension/headerssetterextension v0.107.1-0.20240816183440-44ef4d6c5a2c/go.mod h1:3Ix+EiAkv2XyzuQQdG9YLF9It0jSMc9wAiSns+eymRY=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/healthcheckextension v0.107.1-0.20240816183440-44ef4d6c5a2c h1:9UQDwSNKpK+MQ/EjkA/z9qoxqTUtG+c+y9HpKYvkQak=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/healthcheckextension v0.107.1-0.20240816183440-44ef4d6c5a2c/go.mod h1:9K+pOKiYhPuKriIcdy7Ykl8Hy+6SUph/SpnytiNPAQI=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/httpforwarderextension v0.107.1-0.20240816183440-44ef4d6c5a2c h1:YxJYqcanBJVDw9zHZSB7Ct8jORqMQS1e6t1vztTFBl4=
diff --git a/internal/components/components.go b/internal/components/components.go
index 3a5faa13d8..7789314f15 100644
--- a/internal/components/components.go
+++ b/internal/components/components.go
@@ -29,6 +29,7 @@ import (
 	"github.com/open-telemetry/opentelemetry-collector-contrib/exporter/splunkhecexporter"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/ackextension"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/basicauthextension"
+	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/headerssetterextension"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/healthcheckextension"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/httpforwarderextension"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/oauth2clientauthextension"
@@ -146,6 +147,7 @@ func Get() (otelcol.Factories, error) {
 		ecstaskobserver.NewFactory(),
 		dockerobserver.NewFactory(),
 		filestorage.NewFactory(),
+		headerssetterextension.NewFactory(),
 		healthcheckextension.NewFactory(),
 		hostobserver.NewFactory(),
 		httpforwarderextension.NewFactory(),
diff --git a/internal/components/components_test.go b/internal/components/components_test.go
index 16a205d58d..5368bb094f 100644
--- a/internal/components/components_test.go
+++ b/internal/components/components_test.go
@@ -31,6 +31,7 @@ func TestDefaultComponents(t *testing.T) {
 		"ecs_observer",
 		"ecs_task_observer",
 		"docker_observer",
+		"headers_setter",
 		"health_check",
 		"host_observer",
 		"http_forwarder",