diff --git a/cmssw-tool-conf.spec b/cmssw-tool-conf.spec
index 43630a5d052..35550936d28 100644
--- a/cmssw-tool-conf.spec
+++ b/cmssw-tool-conf.spec
@@ -41,6 +41,7 @@ Requires: heppdt
 Requires: herwig
 Requires: herwig7
 Requires: hydjet
+Requires: hydjet2
 Requires: ittnotify
 Requires: jemalloc
 Requires: jemalloc-debug
diff --git a/hydjet2.spec b/hydjet2.spec
new file mode 100644
index 00000000000..9e405da0e08
--- /dev/null
+++ b/hydjet2.spec
@@ -0,0 +1,24 @@
+### RPM external hydjet2 2.4.3 
+
+Source: http://cern.ch/lokhtin/hydjet++/%{n}-%{realversion}.tar.gz
+
+
+BuildRequires: cmake gmake
+
+Requires: pyquen pythia6 lhapdf root
+
+
+%prep
+%setup -q -n %{n}-%{realversion}
+
+%build
+
+cmake . -DCMAKE_INSTALL_PREFIX=%i -DCMAKE_BUILD_TYPE=Release -DPYQUEN_DIR=${PYQUEN_ROOT} -DPYTHIA6_DIR=${PYTHIA6_ROOT} -DLHAPDF_ROOT_DIR=${LHAPDF_ROOT} -DROOTSYS=${ROOT_ROOT}
+cmake --build . --clean-first -- %{makeprocesses}
+
+%install
+
+cmake --build . --target install -- %{makeprocesses}
+
+mkdir -p %{i}/data/externals/hydjet2
+mv %{i}/share/* %{i}/data/externals/hydjet2
diff --git a/hydjet2/doc.txt b/hydjet2/doc.txt
new file mode 100644
index 00000000000..f256df36d20
--- /dev/null
+++ b/hydjet2/doc.txt
@@ -0,0 +1,10 @@
+- Requested, AddedBy: 
+  @wouf
+  
+- PR:
+  https://github.com/cms-sw/cmsdist/pull/7483
+
+- Description:
+  {hydjet2} is event generator for simulation of relativistic heavy ion AA collisions as a superposition of the soft, hydro-type state and the hard, multi-parton state. 
+- Documentation
+  http://cern.ch/lokhtin/hydjet++/documentation/ 
diff --git a/scram-tools.file/tools/hydjet2/hydjet2.xml b/scram-tools.file/tools/hydjet2/hydjet2.xml
new file mode 100644
index 00000000000..e79a0d86393
--- /dev/null
+++ b/scram-tools.file/tools/hydjet2/hydjet2.xml
@@ -0,0 +1,15 @@
+<tool name="hydjet2" version="@TOOL_VERSION@">
+  <lib name="hydjet2"/>
+  <client>
+    <environment name="HYDJET2_BASE" default="@TOOL_ROOT@"/>
+    <environment name="LIBDIR" default="$HYDJET2_BASE/lib64"/>
+    <environment name="INCLUDE" default="$HYDJET2_BASE/include"/>
+  </client>
+  <runtime name="CMSSW_SEARCH_PATH" default="$HYDJET2_BASE/data" type="path"/>
+  <runtime name="ROOT_INCLUDE_PATH" value="$INCLUDE" type="path"/>
+  <use name="pyquen"/>
+  <use name="pythia6"/>
+  <use name="lhapdf"/>
+  <use name="root"/>
+  <flags SYSTEM_INCLUDE="1"/>
+</tool>