diff --git a/Source/Tech Tree/Parts Browser/costdataParts.json b/Source/Tech Tree/Parts Browser/costdataParts.json
index 52e7816c3d..f86f3b98b1 100644
--- a/Source/Tech Tree/Parts Browser/costdataParts.json	
+++ b/Source/Tech Tree/Parts Browser/costdataParts.json	
@@ -220,8 +220,8 @@
 "cost": 392
 },
 {
-"name": "KDU-414",
-"config": "KDU414",
+"name": "S5_19",
+"config": "S519",
 "cost": 22
 },
 {
@@ -1069,4 +1069,4 @@
 "config": "TR308",
 "cost": 13
 }
-]
\ No newline at end of file
+]
diff --git a/Source/Tech Tree/Parts Browser/data/Stock__RO_Config.json b/Source/Tech Tree/Parts Browser/data/Stock__RO_Config.json
index 2abffa4cf8..a096b6799d 100644
--- a/Source/Tech Tree/Parts Browser/data/Stock__RO_Config.json	
+++ b/Source/Tech Tree/Parts Browser/data/Stock__RO_Config.json	
@@ -1803,8 +1803,8 @@
         ]
     },
     {
-        "name": "RO-KDU414",
-        "title": "KDU-414",
+        "name": "RO-S5_19",
+        "title": "S5.19",
         "description": "",
         "mod": "Stock (RO Config)",
         "cost": 22,
@@ -1818,10 +1818,10 @@
         "orphan": false,
         "rp0_conf": true,
         "spacecraft": "1MV",
-        "engine_config": "KDU414",
+        "engine_config": "S519",
         "upgrade": false,
-        "entry_cost_mods": "KDU-414",
-        "identical_part_name": "KDU-414",
+        "entry_cost_mods": "S5_19",
+        "identical_part_name": "S5_19",
         "module_tags": [
             "EngineLiquidPF"
         ]