diff --git a/opm/simulators/flow/GenericOutputBlackoilModule.cpp b/opm/simulators/flow/GenericOutputBlackoilModule.cpp
index 6ac5b1d74..f1408f9c2 100644
--- a/opm/simulators/flow/GenericOutputBlackoilModule.cpp
+++ b/opm/simulators/flow/GenericOutputBlackoilModule.cpp
@@ -513,22 +513,11 @@ assignToSolution(data::Solution& sol)
     const auto extendedSolutionArrays = std::array {
         DataEntry{"BIOFILM",  UnitSystem::measure::identity,           cBiofilm_},
         DataEntry{"CALCITE",  UnitSystem::measure::identity,           cCalcite_},
-        DataEntry{"DELSTRXX", UnitSystem::measure::pressure,           mech_.delstressXX_},
-        DataEntry{"DELSTRYY", UnitSystem::measure::pressure,           mech_.delstressYY_},
-        DataEntry{"DELSTRZZ", UnitSystem::measure::pressure,           mech_.delstressZZ_},
-        DataEntry{"DELSTRXY", UnitSystem::measure::pressure,           mech_.delstressXY_},
-        DataEntry{"DELSTRXZ", UnitSystem::measure::pressure,           mech_.delstressXZ_},
-        DataEntry{"DELSTRYZ", UnitSystem::measure::pressure,           mech_.delstressYZ_},
-        DataEntry{"DISPX",    UnitSystem::measure::length,             mech_.dispX_},
-        DataEntry{"DISPY",    UnitSystem::measure::length,             mech_.dispY_},
-        DataEntry{"DISPZ",    UnitSystem::measure::length,             mech_.dispZ_},
         DataEntry{"DRSDTCON", UnitSystem::measure::gas_oil_ratio_rate, drsdtcon_},
-        DataEntry{"MECHPOTF", UnitSystem::measure::pressure,           mech_.potentialForce_},
         DataEntry{"MICROBES", UnitSystem::measure::density,            cMicrobes_},
         DataEntry{"OXYGEN",   UnitSystem::measure::density,            cOxygen_},
         DataEntry{"PERMFACT", UnitSystem::measure::identity,           permFact_},
         DataEntry{"PORV_RC",  UnitSystem::measure::identity,           rockCompPorvMultiplier_},
-        DataEntry{"PRESPOTF", UnitSystem::measure::pressure,           mech_.potentialPressForce_},
         DataEntry{"PRES_OVB", UnitSystem::measure::pressure,           overburdenPressure_},
         DataEntry{"RSW",      UnitSystem::measure::gas_oil_ratio,      rsw_},
         DataEntry{"RSWSAT",   UnitSystem::measure::gas_oil_ratio,      gasDissolutionFactorInWater_},
@@ -542,31 +531,6 @@ assignToSolution(data::Solution& sol)
         DataEntry{"STD_CO2",  UnitSystem::measure::identity,           mFracCo2_},
         DataEntry{"STD_GAS",  UnitSystem::measure::identity,           mFracGas_},
         DataEntry{"STD_OIL",  UnitSystem::measure::identity,           mFracOil_},
-        DataEntry{"STRAINXX", UnitSystem::measure::identity,           mech_.strainXX_},
-        DataEntry{"STRAINYY", UnitSystem::measure::identity,           mech_.strainYY_},
-        DataEntry{"STRAINZZ", UnitSystem::measure::identity,           mech_.strainZZ_},
-        DataEntry{"STRAINXY", UnitSystem::measure::identity,           mech_.strainXY_},
-        DataEntry{"STRAINXZ", UnitSystem::measure::identity,           mech_.strainXZ_},
-        DataEntry{"STRAINYZ", UnitSystem::measure::identity,           mech_.strainYZ_},
-        DataEntry{"STRESSXX", UnitSystem::measure::pressure,           mech_.stressXX_},
-        DataEntry{"STRESSYY", UnitSystem::measure::pressure,           mech_.stressYY_},
-        DataEntry{"STRESSZZ", UnitSystem::measure::pressure,           mech_.stressZZ_},
-        DataEntry{"STRESSXY", UnitSystem::measure::pressure,           mech_.stressXY_},
-        DataEntry{"STRESSXZ", UnitSystem::measure::pressure,           mech_.stressXZ_},
-        DataEntry{"STRESSYZ", UnitSystem::measure::pressure,           mech_.stressYZ_},
-        DataEntry{"LINSTRXX", UnitSystem::measure::pressure,           mech_.linstressXX_},
-        DataEntry{"LINSTRYY", UnitSystem::measure::pressure,           mech_.linstressYY_},
-        DataEntry{"LINSTRZZ", UnitSystem::measure::pressure,           mech_.linstressZZ_},
-        DataEntry{"LINSTRXY", UnitSystem::measure::pressure,           mech_.linstressXY_},
-        DataEntry{"LINSTRXZ", UnitSystem::measure::pressure,           mech_.linstressXZ_},
-        DataEntry{"LINSTRYZ", UnitSystem::measure::pressure,           mech_.linstressYZ_},
-        DataEntry{"FRCSTRXX", UnitSystem::measure::pressure,           mech_.fracstressXX_},
-        DataEntry{"FRCSTRYY", UnitSystem::measure::pressure,           mech_.fracstressYY_},
-        DataEntry{"FRCSTRZZ", UnitSystem::measure::pressure,           mech_.fracstressZZ_},
-        DataEntry{"FRCSTRXY", UnitSystem::measure::pressure,           mech_.fracstressXY_},
-        DataEntry{"FRCSTRXZ", UnitSystem::measure::pressure,           mech_.fracstressXZ_},
-        DataEntry{"FRCSTRYZ", UnitSystem::measure::pressure,           mech_.fracstressYZ_},
-        DataEntry{"TEMPPOTF", UnitSystem::measure::pressure,           mech_.potentialTempForce_},
         DataEntry{"TMULT_RC", UnitSystem::measure::identity,           rockCompTransMultiplier_},
         DataEntry{"UREA",     UnitSystem::measure::density,            cUrea_},
     };
@@ -617,6 +581,8 @@ assignToSolution(data::Solution& sol)
         doInsert(array, data::TargetType::RESTART_OPM_EXTENDED);
     }
 
+    this->mech_.outputRestart(sol);
+
     if (! this->temperature_.empty())
     {
         sol.insert("TEMP", UnitSystem::measure::temperature,
diff --git a/opm/simulators/flow/MechContainer.cpp b/opm/simulators/flow/MechContainer.cpp
index 05f4c32a4..ab15f481c 100644
--- a/opm/simulators/flow/MechContainer.cpp
+++ b/opm/simulators/flow/MechContainer.cpp
@@ -23,6 +23,12 @@
 #include <config.h>
 #include <opm/simulators/flow/MechContainer.hpp>
 
+#include <opm/output/data/Solution.hpp>
+
+#include <algorithm>
+#include <array>
+#include <tuple>
+
 namespace Opm {
 
 template<class Scalar>
@@ -111,6 +117,73 @@ allocate(const std::size_t bufferSize,
     allocated_ = true;
 }
 
+template<class Scalar>
+void MechContainer<Scalar>::
+outputRestart(data::Solution& sol) const
+{
+    if (!allocated_) {
+        return;
+    }
+    using DataEntry =
+        std::tuple<std::string, UnitSystem::measure, const std::vector<Scalar>&>;
+
+    auto doInsert = [&sol](const DataEntry&       entry,
+                           const data::TargetType target)
+    {
+        if (std::get<2>(entry).empty()) {
+            return;
+        }
+
+        sol.insert(std::get<std::string>(entry),
+                   std::get<UnitSystem::measure>(entry),
+                   std::move(std::get<2>(entry)),
+                   target);
+    };
+
+    const auto solutionVectors = std::array{
+        DataEntry{"DELSTRXX", UnitSystem::measure::pressure, delstressXX_},
+        DataEntry{"DELSTRYY", UnitSystem::measure::pressure, delstressYY_},
+        DataEntry{"DELSTRZZ", UnitSystem::measure::pressure, delstressZZ_},
+        DataEntry{"DELSTRXY", UnitSystem::measure::pressure, delstressXY_},
+        DataEntry{"DELSTRXZ", UnitSystem::measure::pressure, delstressXZ_},
+        DataEntry{"DELSTRYZ", UnitSystem::measure::pressure, delstressYZ_},
+        DataEntry{"DISPX",    UnitSystem::measure::length,   dispX_},
+        DataEntry{"DISPY",    UnitSystem::measure::length,   dispY_},
+        DataEntry{"DISPZ",    UnitSystem::measure::length,   dispZ_},
+        DataEntry{"FRCSTRXX", UnitSystem::measure::pressure, fracstressXX_},
+        DataEntry{"FRCSTRYY", UnitSystem::measure::pressure, fracstressYY_},
+        DataEntry{"FRCSTRZZ", UnitSystem::measure::pressure, fracstressZZ_},
+        DataEntry{"FRCSTRXY", UnitSystem::measure::pressure, fracstressXY_},
+        DataEntry{"FRCSTRXZ", UnitSystem::measure::pressure, fracstressXZ_},
+        DataEntry{"FRCSTRYZ", UnitSystem::measure::pressure, fracstressYZ_},
+        DataEntry{"LINSTRXX", UnitSystem::measure::pressure, linstressXX_},
+        DataEntry{"LINSTRYY", UnitSystem::measure::pressure, linstressYY_},
+        DataEntry{"LINSTRZZ", UnitSystem::measure::pressure, linstressZZ_},
+        DataEntry{"LINSTRXY", UnitSystem::measure::pressure, linstressXY_},
+        DataEntry{"LINSTRXZ", UnitSystem::measure::pressure, linstressXZ_},
+        DataEntry{"LINSTRYZ", UnitSystem::measure::pressure, linstressYZ_},
+        DataEntry{"MECHPOTF", UnitSystem::measure::pressure, potentialForce_},
+        DataEntry{"PRESPOTF", UnitSystem::measure::pressure, potentialPressForce_},
+        DataEntry{"STRAINXX", UnitSystem::measure::identity, strainXX_},
+        DataEntry{"STRAINYY", UnitSystem::measure::identity, strainYY_},
+        DataEntry{"STRAINZZ", UnitSystem::measure::identity, strainZZ_},
+        DataEntry{"STRAINXY", UnitSystem::measure::identity, strainXY_},
+        DataEntry{"STRAINXZ", UnitSystem::measure::identity, strainXZ_},
+        DataEntry{"STRAINYZ", UnitSystem::measure::identity, strainYZ_},
+        DataEntry{"STRESSXX", UnitSystem::measure::length,   stressXX_},
+        DataEntry{"STRESSYY", UnitSystem::measure::length,   stressYY_},
+        DataEntry{"STRESSZZ", UnitSystem::measure::length,   stressZZ_},
+        DataEntry{"STRESSXY", UnitSystem::measure::length,   stressXY_},
+        DataEntry{"STRESSXZ", UnitSystem::measure::length,   stressXZ_},
+        DataEntry{"STRESSYZ", UnitSystem::measure::length,   stressYZ_},
+        DataEntry{"TEMPPOTF", UnitSystem::measure::pressure, potentialTempForce_},
+    };
+
+    std::for_each(solutionVectors.begin(), solutionVectors.end(),
+                  [doInsert](const auto& array)
+                  { doInsert(array, data::TargetType::RESTART_OPM_EXTENDED); });
+}
+
 template class MechContainer<double>;
 
 #if FLOW_INSTANTIATE_FLOAT
diff --git a/opm/simulators/flow/MechContainer.hpp b/opm/simulators/flow/MechContainer.hpp
index 94b244b44..bd9196b39 100644
--- a/opm/simulators/flow/MechContainer.hpp
+++ b/opm/simulators/flow/MechContainer.hpp
@@ -33,6 +33,8 @@
 
 namespace Opm {
 
+namespace data { class Solution; }
+
 template<class Scalar>
 class MechContainer
 {
@@ -42,6 +44,8 @@ public:
     void allocate(const std::size_t bufferSize,
                   std::map<std::string, int>& rstKeywords);
 
+    void outputRestart(data::Solution& sol) const;
+
     bool allocated() const
     { return allocated_; }