diff --git a/src/components/JournalView/typings.ts b/src/components/JournalView/typings.ts
index a2605cf..ce607e0 100644
--- a/src/components/JournalView/typings.ts
+++ b/src/components/JournalView/typings.ts
@@ -15,7 +15,8 @@ export namespace Journal {
     | 'search-issuedFrom'
     | 'search-terminatingAt'
     | 'search-via'
-    | 'select-categoryCode';
+    | 'select-categoryCode'
+    | 'search-headUnit';
 
   export type TimetableSearchType = {
     [key in TimetableSearchKey]: string;
diff --git a/src/locales/en.json b/src/locales/en.json
index 7f1c0d7..8550f38 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -199,6 +199,7 @@
     "search-date-from": "Date (UTC+2 / CEST)",
     "search-date-to": "Date (UTC+2 / CEST)",
     "select-categoryCode": "Train category",
+    "search-headUnit": "Traction unit (e.g. EP09, ET22-401)",
     "sort-mass": "mass",
     "sort-speed": "speed",
     "sort-length": "length",
diff --git a/src/locales/pl.json b/src/locales/pl.json
index 7f80222..9e1105c 100644
--- a/src/locales/pl.json
+++ b/src/locales/pl.json
@@ -196,6 +196,7 @@
     "search-date-from": "Data (UTC+2 / CEST)",
     "search-date-to": "Data (UTC+2 / CEST)",
     "select-categoryCode": "Kategoria pociągu",
+    "search-headUnit": "Pojazd trakcyjny (np. EP09, ET22-137)",
     "sort-routeDistance": "kilometraż",
     "sort-allStopsCount": "stacje",
     "sort-beginDate": "data",
diff --git a/src/typings/api.ts b/src/typings/api.ts
index 606f1b8..a3aa92b 100644
--- a/src/typings/api.ts
+++ b/src/typings/api.ts
@@ -253,8 +253,10 @@ export namespace API {
       pn?: number;
       tn?: number;
 
-      returnType?: 'all' | 'short' | 'detailed';
+      headUnitName?: string;
+      headUnitType?: string;
 
+      returnType?: 'all' | 'short' | 'detailed';
       sortBy?: Journal.TimetableSorter['id'];
     }
 
diff --git a/src/views/JournalTimetables.vue b/src/views/JournalTimetables.vue
index 9888939..4e39886 100644
--- a/src/views/JournalTimetables.vue
+++ b/src/views/JournalTimetables.vue
@@ -173,8 +173,9 @@ export default defineComponent({
       'search-issuedFrom': '',
       'search-via': '',
       'search-terminatingAt': '',
-      'select-categoryCode': '',
-      'search-date-from': ''
+      'search-headUnit': '',
+      'search-date-from': '',
+      'select-categoryCode': ''
     } as Journal.TimetableSearchType);
 
     const countFromIndex = ref(0);
@@ -296,6 +297,8 @@ export default defineComponent({
     async fetchHistoryData() {
       this.extraInfoIndexes.length = 0;
 
+      const queryParams: API.TimetableHistory.QueryParams = {};
+
       const driverName = this.searchersValues['search-driver'].trim() || undefined;
       const trainNo = this.searchersValues['search-train'].trim() || undefined;
       const authorName = this.searchersValues['search-dispatcher'].trim() || undefined;
@@ -305,6 +308,7 @@ export default defineComponent({
       const via = this.searchersValues['search-via'].trim() || undefined;
       const terminatingAt = this.searchersValues['search-terminatingAt'].trim() || undefined;
       const categoryCode = this.searchersValues['select-categoryCode'].trim() || undefined;
+      const headUnit = this.searchersValues['search-headUnit'].trim() || undefined;
 
       let dateFromISO: string | undefined = undefined;
       let dateToISO: string | undefined = undefined;
@@ -320,8 +324,6 @@ export default defineComponent({
         dateToISO = dateTo.toISOString();
       }
 
-      const queryParams: API.TimetableHistory.QueryParams = {};
-
       this.filterList
         .filter((f) => f.isActive)
         .forEach((f) => {
@@ -393,6 +395,17 @@ export default defineComponent({
       queryParams['sortBy'] =
         this.sorterActive.id != 'timetableId' ? this.sorterActive.id : undefined;
 
+      // Head unit params
+      if (headUnit) {
+        const [headUnitName, headUnitNumber] = headUnit.split('-');
+
+        if (headUnitNumber && !isNaN(Number(headUnitNumber))) {
+          queryParams['headUnitName'] = `${headUnitName}-${headUnitNumber}`;
+        } else {
+          queryParams['headUnitType'] = headUnitName;
+        }
+      }
+
       if (JSON.stringify(this.currentQueryParams) != JSON.stringify(queryParams))
         this.dataStatus = Status.Data.Loading;