diff --git a/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-endcap-structural-375-orange.mu b/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-endcap-structural-375-orange.mu
new file mode 100644
index 00000000..9338c23e
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diff --git a/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-fueltank-375-2-n.dds b/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-fueltank-375-2-n.dds
deleted file mode 100644
index cedf15a2..00000000
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diff --git a/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-fueltank-375-2-n.tga b/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-fueltank-375-2-n.tga
new file mode 100644
index 00000000..f6035ca6
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diff --git a/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-fueltank-375-2.dds b/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-fueltank-375-2.dds
deleted file mode 100644
index 63a4ed22..00000000
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diff --git a/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-fueltank-375-2.tga b/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-fueltank-375-2.tga
new file mode 100644
index 00000000..e32994b1
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diff --git a/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-nosecone-375-1-n.tga b/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-nosecone-375-1-n.tga
new file mode 100644
index 00000000..40260fa0
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diff --git a/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-nosecone-375-1.mu b/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-nosecone-375-1.mu
index 2bf1f76b..1860a607 100644
Binary files a/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-nosecone-375-1.mu and b/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-nosecone-375-1.mu differ
diff --git a/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-nosecone-375-1.tga b/Distribution/Restock/GameData/ReStock/Assets/FuelTank/restock-nosecone-375-1.tga
new file mode 100644
index 00000000..f5b6c823
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diff --git a/Distribution/Restock/GameData/ReStock/Patches/Aerodynamic/restock-aero-375.cfg b/Distribution/Restock/GameData/ReStock/Patches/Aerodynamic/restock-aero-375.cfg
new file mode 100644
index 00000000..175b2bed
--- /dev/null
+++ b/Distribution/Restock/GameData/ReStock/Patches/Aerodynamic/restock-aero-375.cfg
@@ -0,0 +1,47 @@
+// Patches applying art changes to 2.5m aerodynamic parts
+// Contents:
+// - Protective Rocket Nose Cone Mk12A (rocketNoseConeSize3)
+
+@PART[rocketNoseConeSize3]
+{
+  @author = Chris Adderley (Nertea)
+  !mesh = DELETE
+  !MODEL,* {}
+  MODEL
+  {
+    model = ReStock/Assets/FuelTank/restock-nosecone-375-1
+  }
+  !MODULE[ModulePartVariants] {}
+  MODULE
+  {
+    name = ModulePartVariants
+    useMultipleDragCubes = false
+    baseVariant = White
+    VARIANT
+    {
+      name = White
+      displayName = #autoLOC_8007119
+      themeName = White
+      primaryColor = #ffffff
+      secondaryColor = #ffffff
+      GAMEOBJECTS
+      {
+        Cone375WhiteAero = true
+        Cone375OrangeAero = false
+      }
+    }
+    VARIANT
+    {
+      name = Orange
+      displayName = #autoLOC_8007121
+      themeName = Orange
+      primaryColor = #4c4f47
+      secondaryColor = #f49841
+      GAMEOBJECTS
+      {
+        Cone375WhiteAero = false
+        Cone375OrangeAero = true
+      }
+    }
+  }
+}
diff --git a/Distribution/Restock/changelog.txt b/Distribution/Restock/changelog.txt
index 532dd0f6..ed8fd0ef 100644
--- a/Distribution/Restock/changelog.txt
+++ b/Distribution/Restock/changelog.txt
@@ -3,6 +3,8 @@
 - KSP 1.8 compatibility
 - Phase 2 release
 - New stock part replacements
+ - Aero
+  - Protective Rocket Nose Cone Mk12A (Nertea)
  - Coupling
   - Advanced Grabbing Unit (Andrew Cassidy)
  - Structural
diff --git a/Distribution/RestockPlus/GameData/ReStockPlus/Parts/Engine/1875/restock-srb-castor.cfg b/Distribution/RestockPlus/GameData/ReStockPlus/Parts/Engine/1875/restock-srb-castor.cfg
index f0f9d956..c780cc31 100644
--- a/Distribution/RestockPlus/GameData/ReStockPlus/Parts/Engine/1875/restock-srb-castor.cfg
+++ b/Distribution/RestockPlus/GameData/ReStockPlus/Parts/Engine/1875/restock-srb-castor.cfg
@@ -97,6 +97,8 @@ PART
   mass = 8
   heatConductivity = 0.06 // 1/2 default
   skinInternalConductionMult = 4.0
+  /// Flag to disable this part if MH is installed
+  MHReplacement = True
   emissiveConstant = 0.5 // yes, it's white. But let's claim it's an emissive white...
   dragModelType = default
   maximum_drag = 0.3