diff --git a/src/client/Containers/Calculation/Sections/sectionsList.ts b/src/client/Containers/Calculation/Sections/sectionsList.ts
index 8db3fe9..f5d0de1 100644
--- a/src/client/Containers/Calculation/Sections/sectionsList.ts
+++ b/src/client/Containers/Calculation/Sections/sectionsList.ts
@@ -163,7 +163,7 @@ const sections: ISection[] = [
             ],
           },
           {
-            elements: ['tbxCountSeats', 'tbxMaxSpeed', 'selectWithTrailer'],
+            elements: ['tbxCountSeats', 'tbxMaxSpeed', 'cbxWithTrailer'],
           },
         ],
       },
diff --git a/src/client/Containers/Calculation/lib/elements/components.ts b/src/client/Containers/Calculation/lib/elements/components.ts
index fbdd086..758fb8b 100644
--- a/src/client/Containers/Calculation/lib/elements/components.ts
+++ b/src/client/Containers/Calculation/lib/elements/components.ts
@@ -70,7 +70,7 @@ const elementsComponents: TElements<Component> = {
   tbxMaxMass: InputNumber,
   tbxCountSeats: InputNumber,
   tbxMaxSpeed: InputNumber,
-  selectWithTrailer: Select,
+  cbxWithTrailer: Checkbox,
   selectDealer: Select,
   selectDealerPerson: Select,
   selectDealerRewardCondition: Select,
diff --git a/src/client/Containers/Calculation/lib/elements/elementsProps.ts b/src/client/Containers/Calculation/lib/elements/elementsProps.ts
index d43054d..6023e36 100644
--- a/src/client/Containers/Calculation/lib/elements/elementsProps.ts
+++ b/src/client/Containers/Calculation/lib/elements/elementsProps.ts
@@ -196,9 +196,6 @@ const elementsProps: TElements<ElementProps> = {
     min: '0',
     max: '2000',
   },
-  selectWithTrailer: {
-    showSearch: false,
-  },
   selectDealer: {
     showSearch: true,
   },
diff --git a/src/client/Containers/Calculation/lib/elements/titles.ts b/src/client/Containers/Calculation/lib/elements/titles.ts
index af7b63b..8f9f1e5 100644
--- a/src/client/Containers/Calculation/lib/elements/titles.ts
+++ b/src/client/Containers/Calculation/lib/elements/titles.ts
@@ -50,7 +50,7 @@ const elementsTitles: TElements<string> = {
   labelLeaseObjectRisk: 'Риск ПЛ',
   labelDepreciationGroup: 'Группа обесценения',
   tbxLeaseObjectCount: 'Кол-во ПЛ в расчете',
-  selectWithTrailer: 'ТС с прицепом',
+  cbxWithTrailer: 'ТС с прицепом',
   cbxLeaseObjectUsed: 'ПЛ БУ',
   tbxMaxMass: 'Разрешенная макс.масса(кг)',
   tbxCountSeats: 'Количество мест',
diff --git a/src/client/Containers/Calculation/lib/elements/values.ts b/src/client/Containers/Calculation/lib/elements/values.ts
index 811a35b..50a6ac4 100644
--- a/src/client/Containers/Calculation/lib/elements/values.ts
+++ b/src/client/Containers/Calculation/lib/elements/values.ts
@@ -52,7 +52,7 @@ export const elementsValues: TElements<ValuesNames> = {
   radioDeliveryTime: 'deliveryTime',
   labelDepreciationGroup: 'depreciationGroup',
   tbxLeaseObjectCount: 'leaseObjectCount',
-  selectWithTrailer: 'withTrailer',
+  cbxWithTrailer: 'withTrailer',
   cbxLeaseObjectUsed: 'leaseObjectUsed',
   tbxMaxMass: 'maxMass',
   tbxCountSeats: 'countSeats',
diff --git a/src/client/stores/CalculationStore/Effects/autorun.ts b/src/client/stores/CalculationStore/Effects/autorun.ts
index cff1296..e429908 100644
--- a/src/client/stores/CalculationStore/Effects/autorun.ts
+++ b/src/client/stores/CalculationStore/Effects/autorun.ts
@@ -89,13 +89,13 @@ const autorunEffects: IAutorunEffect[] = [
         calculationStore.setValidation('tbxMaxMass', true);
       }
       if (!withTrailer) {
-        calculationStore.setValidation('selectWithTrailer', false);
+        calculationStore.setValidation('cbxWithTrailer', false);
       } else {
-        calculationStore.setValidation('selectWithTrailer', true);
+        calculationStore.setValidation('cbxWithTrailer', true);
       }
     } else {
       calculationStore.setValidation('tbxMaxMass', true);
-      calculationStore.setValidation('selectWithTrailer', true);
+      calculationStore.setValidation('cbxWithTrailer', true);
     }
   },
   calculationStore => () => {
diff --git a/src/client/stores/CalculationStore/Effects/reactions/otherReactions.ts b/src/client/stores/CalculationStore/Effects/reactions/otherReactions.ts
index e13c3df..2d4d175 100644
--- a/src/client/stores/CalculationStore/Effects/reactions/otherReactions.ts
+++ b/src/client/stores/CalculationStore/Effects/reactions/otherReactions.ts
@@ -1488,10 +1488,10 @@ const reactionEffects: IReactionEffect[] = [
         leaseObjectCategory === 100000001 ||
         leaseObjectCategory === 100000001
       ) {
-        calculationStore.setValue('withTrailer', null);
-        calculationStore.setStatus('selectWithTrailer', ElementStatus.Disabled);
+        calculationStore.setValue('withTrailer', false);
+        calculationStore.setStatus('cbxWithTrailer', ElementStatus.Disabled);
       } else {
-        calculationStore.setStatus('selectWithTrailer', ElementStatus.Default);
+        calculationStore.setStatus('cbxWithTrailer', ElementStatus.Default);
       }
     },
     options: {
diff --git a/src/client/stores/CalculationStore/config/initialOptions.ts b/src/client/stores/CalculationStore/config/initialOptions.ts
index f3c3f26..a955f94 100644
--- a/src/client/stores/CalculationStore/config/initialOptions.ts
+++ b/src/client/stores/CalculationStore/config/initialOptions.ts
@@ -139,21 +139,6 @@ const initialOptions: TElements<IBaseOption[]> = {
     },
   ],
 
-  selectWithTrailer: [
-    // {
-    //   name: 'пусто',
-    //   value: 100000000,
-    // },
-    {
-      name: 'Да',
-      value: 100000001,
-    },
-    {
-      name: 'Нет',
-      value: 100000002,
-    },
-  ],
-
   selectEngineType: [
     {
       name: 'Бензин',
diff --git a/src/client/stores/CalculationStore/config/initialValues.ts b/src/client/stores/CalculationStore/config/initialValues.ts
index 67e893d..ed300f1 100644
--- a/src/client/stores/CalculationStore/config/initialValues.ts
+++ b/src/client/stores/CalculationStore/config/initialValues.ts
@@ -32,7 +32,7 @@ const initialValues: TValues<TValue> = {
   configuration: null,
   deliveryTime: 100000000,
   leaseObjectCount: 1,
-  withTrailer: null,
+  withTrailer: false,
   leaseObjectUsed: false,
   maxMass: 0,
   countSeats: 0,
diff --git a/src/core/types/Calculation/Store/elements.ts b/src/core/types/Calculation/Store/elements.ts
index 1b297ad..2a8590c 100644
--- a/src/core/types/Calculation/Store/elements.ts
+++ b/src/core/types/Calculation/Store/elements.ts
@@ -48,7 +48,7 @@ export type ElementsNames =
   | 'labelLeaseObjectRisk'
   | 'labelDepreciationGroup'
   | 'tbxLeaseObjectCount'
-  | 'selectWithTrailer'
+  | 'cbxWithTrailer'
   | 'cbxLeaseObjectUsed'
   | 'tbxMaxMass'
   | 'tbxCountSeats'