diff --git a/common/src/main/scala/net/psforever/objects/Vehicle.scala b/common/src/main/scala/net/psforever/objects/Vehicle.scala
index 22f87d59e..a5ce3bbdd 100644
--- a/common/src/main/scala/net/psforever/objects/Vehicle.scala
+++ b/common/src/main/scala/net/psforever/objects/Vehicle.scala
@@ -22,7 +22,15 @@ import scala.annotation.tailrec
   * Following that are the mounted weapons and other utilities.
   * Trunk space starts being indexed afterwards.<br>
   * <br>
-  * To keep it simple, infantry seating, mounted weapons, and utilities are stored separately.
+  * To keep it simple, infantry seating, mounted weapons, and utilities are stored separately.<br>
+  * <br>
+  * Vehicles maintain a `Map` of `Utility` objects in given index positions.
+  * Positive indices and zero are considered "represented" and must be assigned a globally unique identifier
+  * and must be present in the containing vehicle's `ObjectCreateMessage` packet.
+  * The index is the seat position, reflecting the position in the zero-index inventory.
+  * Negative indices are expected to be excluded from this conversion.
+  * The value of the negative index does not have a specific meaning.
+  * @see `Vehicle.EquipmentUtilities`
   * @param vehicleDef the vehicle's definition entry';
   *                   stores and unloads pertinent information about the `Vehicle`'s configuration;
   *                   used in the initialization process (`loadVehicleDefinition`)
@@ -493,6 +501,14 @@ object Vehicle {
     new Vehicle(vehicleDef)
   }
 
+  /**
+    * Given a `Map` of `Utility` objects, only return the objects with a positive or zero-index position.
+    * @return a map of applicable utilities
+    */
+  def EquipmentUtilities(utilities : Map[Int, Utility]) : Map[Int, Utility] = {
+    utilities.filter({ case(index : Int, _ : Utility) => index > -1 })
+  }
+
   /**
     * Use the `*Definition` that was provided to this object to initialize its fields and settings.
     * @param vehicle the `Vehicle` being initialized
diff --git a/common/src/main/scala/net/psforever/objects/definition/converter/VehicleConverter.scala b/common/src/main/scala/net/psforever/objects/definition/converter/VehicleConverter.scala
index 6bef162c4..137ad6c0e 100644
--- a/common/src/main/scala/net/psforever/objects/definition/converter/VehicleConverter.scala
+++ b/common/src/main/scala/net/psforever/objects/definition/converter/VehicleConverter.scala
@@ -44,7 +44,7 @@ class VehicleConverter extends ObjectCreateConverter[Vehicle]() {
   }
 
   protected def MakeUtilities(obj : Vehicle) : List[InventoryItemData.InventoryItem] = {
-    obj.Utilities.map({
+    Vehicle.EquipmentUtilities(obj.Utilities).map({
       case(index, utilContainer) =>
         val util = utilContainer()
         val utilDef = util.Definition
diff --git a/common/src/main/scala/net/psforever/objects/guid/GUIDTask.scala b/common/src/main/scala/net/psforever/objects/guid/GUIDTask.scala
index 95b03452c..95d92bced 100644
--- a/common/src/main/scala/net/psforever/objects/guid/GUIDTask.scala
+++ b/common/src/main/scala/net/psforever/objects/guid/GUIDTask.scala
@@ -151,7 +151,7 @@ object GUIDTask {
   def RegisterVehicle(vehicle : Vehicle)(implicit guid : ActorRef) : TaskResolver.GiveTask = {
     import net.psforever.objects.inventory.InventoryItem
     val weaponTasks = vehicle.Weapons.map({ case(_ : Int, entry : EquipmentSlot) => RegisterEquipment(entry.Equipment.get)}).toList
-    val utilTasks = vehicle.Utilities.map({case (_ : Int, util : Utility) => RegisterObjectTask(util())}).toList
+    val utilTasks = Vehicle.EquipmentUtilities(vehicle.Utilities).map({case (_ : Int, util : Utility) => RegisterObjectTask(util())}).toList
     val inventoryTasks = vehicle.Trunk.Items.map({ case((_ : Int, entry : InventoryItem)) => RegisterEquipment(entry.obj)})
     TaskResolver.GiveTask(RegisterObjectTask(vehicle).task, weaponTasks ++ utilTasks ++ inventoryTasks)
   }
@@ -255,7 +255,7 @@ object GUIDTask {
   def UnregisterVehicle(vehicle : Vehicle)(implicit guid : ActorRef) : TaskResolver.GiveTask = {
     import net.psforever.objects.inventory.InventoryItem
     val weaponTasks = vehicle.Weapons.map({ case(_ : Int, entry : EquipmentSlot) => UnregisterTool(entry.Equipment.get.asInstanceOf[Tool]) }).toList
-    val utilTasks = vehicle.Utilities.map({case (_ : Int, util : Utility) => UnregisterObjectTask(util())}).toList
+    val utilTasks = Vehicle.EquipmentUtilities(vehicle.Utilities).map({case (_ : Int, util : Utility) => UnregisterObjectTask(util())}).toList
     val inventoryTasks = vehicle.Trunk.Items.map({ case((_ : Int, entry : InventoryItem)) => UnregisterEquipment(entry.obj)})
     TaskResolver.GiveTask(UnregisterObjectTask(vehicle).task, weaponTasks ++ utilTasks ++ inventoryTasks)
   }
diff --git a/common/src/main/scala/net/psforever/objects/vehicles/Utility.scala b/common/src/main/scala/net/psforever/objects/vehicles/Utility.scala
index 683b4fc85..5259c3255 100644
--- a/common/src/main/scala/net/psforever/objects/vehicles/Utility.scala
+++ b/common/src/main/scala/net/psforever/objects/vehicles/Utility.scala
@@ -56,6 +56,12 @@ class Utility(util : UtilityType.Value, vehicle : Vehicle) {
     * @param context an `ActorContext` potentially useful for the function
     */
   def Setup(implicit context : ActorContext) : Unit = setupFunc(obj, context)
+
+  /**
+    * Recover the original value used to initialize this object.
+    * @return the type of the `Amenity` object that was created
+    */
+  def UtilType : UtilityType.Value = util
 }
 
 object Utility {
diff --git a/common/src/test/scala/objects/ConverterTest.scala b/common/src/test/scala/objects/ConverterTest.scala
index 612637405..723c248f7 100644
--- a/common/src/test/scala/objects/ConverterTest.scala
+++ b/common/src/test/scala/objects/ConverterTest.scala
@@ -298,7 +298,7 @@ class ConverterTest extends Specification {
   }
 
   "Vehicle" should {
-    "convert to packet" in {
+    "convert to packet (1)" in {
       val hellfire_ammo = AmmoBoxDefinition(Ammo.hellfire_ammo.id)
 
       val fury_weapon_systema_def = ToolDefinition(ObjectClass.fury_weapon_systema)
@@ -333,5 +333,16 @@ class ConverterTest extends Specification {
       fury.Definition.Packet.ConstructorData(fury).isSuccess mustEqual true
       ok //TODO write more of this test
     }
+
+    "convert to packet (2)" in {
+      val
+      ams = Vehicle(GlobalDefinitions.ams)
+      ams.GUID = PlanetSideGUID(413)
+      ams.Utilities(3)().GUID = PlanetSideGUID(414)
+      ams.Utilities(4)().GUID = PlanetSideGUID(415)
+
+      ams.Definition.Packet.ConstructorData(ams).isSuccess mustEqual true
+      ok //TODO write more of this test
+    }
   }
 }
\ No newline at end of file
diff --git a/common/src/test/scala/objects/UtilityTest.scala b/common/src/test/scala/objects/UtilityTest.scala
index 5ac6740a4..ef78af4bf 100644
--- a/common/src/test/scala/objects/UtilityTest.scala
+++ b/common/src/test/scala/objects/UtilityTest.scala
@@ -14,6 +14,7 @@ class UtilityTest extends Specification {
   "Utility" should {
     "create an order_terminala object" in {
       val obj = Utility(UtilityType.order_terminala, UtilityTest.vehicle)
+      obj.UtilType mustEqual UtilityType.order_terminala
       obj().isInstanceOf[Terminal] mustEqual true
       obj().asInstanceOf[Terminal].Definition.ObjectId mustEqual 613
       obj().asInstanceOf[Terminal].Actor == ActorRef.noSender
@@ -21,6 +22,7 @@ class UtilityTest extends Specification {
 
     "create an order_terminalb object" in {
       val obj = Utility(UtilityType.order_terminalb, UtilityTest.vehicle)
+      obj.UtilType mustEqual UtilityType.order_terminalb
       obj().isInstanceOf[Terminal] mustEqual true
       obj().asInstanceOf[Terminal].Definition.ObjectId mustEqual 614
       obj().asInstanceOf[Terminal].Actor == ActorRef.noSender
diff --git a/common/src/test/scala/objects/VehicleTest.scala b/common/src/test/scala/objects/VehicleTest.scala
index 1bd7abfaf..e7e6f2e39 100644
--- a/common/src/test/scala/objects/VehicleTest.scala
+++ b/common/src/test/scala/objects/VehicleTest.scala
@@ -3,7 +3,7 @@ package objects
 
 import akka.actor.Props
 import net.psforever.objects.{GlobalDefinitions, Player, Vehicle}
-import net.psforever.objects.definition.SeatDefinition
+import net.psforever.objects.definition.{SeatDefinition, VehicleDefinition}
 import net.psforever.objects.serverobject.mount.Mountable
 import net.psforever.objects.vehicles._
 import net.psforever.packet.game.PlanetSideGUID
@@ -256,6 +256,26 @@ class VehicleTest extends Specification {
       harasser_vehicle.WeaponControlledFromSeat(0) mustEqual None
       harasser_vehicle.WeaponControlledFromSeat(1) mustEqual chaingun_p
     }
+
+    "can filter utilities with indices that are natural numbers" in {
+      val objDef = VehicleDefinition(1)
+      objDef.Utilities += -1 -> UtilityType.order_terminala
+      objDef.Utilities += 0 -> UtilityType.order_terminalb
+      objDef.Utilities += 2 -> UtilityType.order_terminalb
+      val obj = Vehicle(objDef)
+
+      obj.Utilities.size mustEqual 3
+      obj.Utilities(-1).UtilType mustEqual UtilityType.order_terminala
+      obj.Utilities(0).UtilType mustEqual UtilityType.order_terminalb
+      obj.Utilities.get(1) mustEqual None
+      obj.Utilities(2).UtilType mustEqual UtilityType.order_terminalb
+
+      val filteredMap = Vehicle.EquipmentUtilities(obj.Utilities)
+      filteredMap.size mustEqual 2
+      filteredMap.get(-1) mustEqual None
+      filteredMap(0).UtilType mustEqual UtilityType.order_terminalb
+      filteredMap(2).UtilType mustEqual UtilityType.order_terminalb
+    }
   }
 }