diff --git a/src/main/java/org/opensearch/index/codec/customcodecs/Lucene99CustomCodec.java b/src/main/java/org/opensearch/index/codec/customcodecs/Lucene99CustomCodec.java
index e0b3c2b..6b31167 100644
--- a/src/main/java/org/opensearch/index/codec/customcodecs/Lucene99CustomCodec.java
+++ b/src/main/java/org/opensearch/index/codec/customcodecs/Lucene99CustomCodec.java
@@ -12,11 +12,14 @@
 import org.apache.lucene.codecs.FilterCodec;
 import org.apache.lucene.codecs.StoredFieldsFormat;
 import org.apache.lucene.codecs.lucene99.Lucene99Codec;
+import org.opensearch.common.settings.Settings;
 import org.opensearch.index.codec.PerFieldMappingPostingFormatCodec;
 import org.opensearch.index.mapper.MapperService;
 
 import java.util.Set;
 
+import static org.opensearch.index.engine.EngineConfig.INDEX_CODEC_COMPRESSION_LEVEL_SETTING;
+
 /**
  *
  * Extends {@link FilterCodec} to reuse the functionality of Lucene Codec.
@@ -28,7 +31,7 @@
 public abstract class Lucene99CustomCodec extends FilterCodec {
 
     /** Default compression level used for compression */
-    public static final int DEFAULT_COMPRESSION_LEVEL = 3;
+    public static final int DEFAULT_COMPRESSION_LEVEL = INDEX_CODEC_COMPRESSION_LEVEL_SETTING.getDefault(Settings.EMPTY);
 
     /** Each mode represents a compression algorithm. */
     public enum Mode {
diff --git a/src/main/java/org/opensearch/index/codec/customcodecs/Lucene99QatCodec.java b/src/main/java/org/opensearch/index/codec/customcodecs/Lucene99QatCodec.java
index 3e314c7..20f265d 100644
--- a/src/main/java/org/opensearch/index/codec/customcodecs/Lucene99QatCodec.java
+++ b/src/main/java/org/opensearch/index/codec/customcodecs/Lucene99QatCodec.java
@@ -23,6 +23,8 @@
 
 import com.intel.qat.QatZipper;
 
+import static org.opensearch.index.engine.EngineConfig.INDEX_CODEC_COMPRESSION_LEVEL_SETTING;
+
 /**
  * Extends {@link FilterCodec} to reuse the functionality of Lucene Codec.
  *
@@ -30,9 +32,6 @@
  */
 public abstract class Lucene99QatCodec extends FilterCodec {
 
-    /** Default compression level used for compression */
-    public static final int DEFAULT_COMPRESSION_LEVEL = 6;
-
     /** A setting to specifiy the QAT acceleration mode. */
     public static final Setting<QatZipper.Mode> INDEX_CODEC_QAT_MODE_SETTING = new Setting<>("index.codec.qatmode", "auto", s -> {
         switch (s) {
@@ -45,9 +44,12 @@ public abstract class Lucene99QatCodec extends FilterCodec {
         }
     }, Property.IndexScope, Property.Dynamic);
 
-    /**  Just a terse way to reference the default execution mode. */
+    /**  A terse way to reference the default QAT execution mode. */
     public static final QatZipper.Mode DEFAULT_QAT_MODE = INDEX_CODEC_QAT_MODE_SETTING.getDefault(Settings.EMPTY);
 
+    /** Default compression level used for compression */
+    public static final int DEFAULT_COMPRESSION_LEVEL = INDEX_CODEC_COMPRESSION_LEVEL_SETTING.getDefault(Settings.EMPTY);
+
     /** Each mode represents a compression algorithm. */
     public enum Mode {
         /** QAT lz4 mode. */