diff --git a/src/layouts/payment-method/add-vaps-modal-buttons/add-vaps-modal-buttons.vue b/src/layouts/payment-method/add-vaps-modal-buttons/add-vaps-modal-buttons.vue
index 783405eee..fa78915c1 100644
--- a/src/layouts/payment-method/add-vaps-modal-buttons/add-vaps-modal-buttons.vue
+++ b/src/layouts/payment-method/add-vaps-modal-buttons/add-vaps-modal-buttons.vue
@@ -34,7 +34,6 @@
                             v-model="selectedFrontWipers" />
                         <p class="price">+${{ wipersModal.totalFrontPrice }}</p>
                     </div>
-
                     <div>
                         <checkboxQuestion
                             class="mb-5"
@@ -55,11 +54,21 @@
 </template>
 
 <script>
+// COMPONENTS
 import buttonQuestion from "@/digital-components/button-question/button-question";
 import addVapsButton from "./add-vaps-button/add-vaps-button";
 import contentGroupModal from "@/fmg-components/content-group-modal/content-group-modal";
 import checkboxQuestion from "@/digital-components/checkbox-question/checkbox-question";
 
+// SUPPORTING
+import { partTypeStrings } from "@/constants/part-type-strings";
+
+const wipersToDisplayStrings = {
+    FRONT: "FRONT",
+    REAR: "REAR",
+    BOTH: "BOTH",
+};
+
 export default {
     name: "add-vaps-modal-buttons",
     props: {
@@ -96,10 +105,10 @@ export default {
                 return item.partType === part.rearWiperLineItems[0]?.partType;
             });
 
-            if (this.wipersToDisplay === "front") {
+            if (this.wipersToDisplay === wipersToDisplayStrings.FRONT) {
                 this.selectedFrontWipers = true; // set as true if front wipers is only option
             }
-            if (this.wipersToDisplay === "rear") {
+            if (this.wipersToDisplay === wipersToDisplayStrings.REAR) {
                 this.selectedRearWipers = true; // set as true if rear wipers is only option
             }
             if (!frontWipersAlreadyInCart && this.selectedFrontWipers) {
@@ -119,7 +128,7 @@ export default {
             }
             this.$refs[modalName].closeModal();
 
-            if (this.wipersToDisplay === "both") {
+            if (this.wipersToDisplay === wipersToDisplayStrings.BOTH) {
                 this.selectedFrontWipers = false; // set as false if both options are given
                 this.selectedRearWipers = false; // set as false if both options are given
             }
@@ -134,7 +143,7 @@ export default {
         },
         rainDefenseModal() {
             const lineItem = this.availableLineItems.find((item) => {
-                return item.partType === "RAIN DEFENSE";
+                return item.partType === partTypeStrings.FRONT_WIPER;
             });
             if (lineItem)
                 lineItem.listPrice = parseFloat(
@@ -145,10 +154,10 @@ export default {
         wipersModal() {
             // create a single wiper item for modal
             const frontWiperLineItems = this.availableLineItems.filter((item) => {
-                return item.partType.includes("FRONT WIPER");
+                return item.partType.includes(partTypeStrings.FRONT_WIPER);
             });
             const rearWiperLineItems = this.availableLineItems.filter((item) => {
-                return item.partType.includes("REAR WIPER");
+                return item.partType.includes(partTypeStrings.REAR_WIPER);
             });
             let wipersModal;
             let totalFrontPrice = 0;
@@ -181,13 +190,13 @@ export default {
             if (!this.answersCmsData) return buttons;
 
             const rainDefenseInCart = this.currentCartItems.vaps?.some((vap) => {
-                return vap?.partType === "RAIN DEFENSE";
+                return vap?.partType === partTypeStrings.FRONT_WIPER;
             });
             const frontWipersInCart = this.currentCartItems.vaps?.some((vap) => {
-                return vap?.partType?.includes("FRONT WIPER");
+                return vap?.partType?.includes(partTypeStrings.FRONT_WIPER);
             });
             const rearWipersInCart = this.currentCartItems.vaps?.some((vap) => {
-                return vap?.partType?.includes("REAR WIPER");
+                return vap?.partType?.includes(partTypeStrings.REAR_WIPER);
             });
 
             const getAnswer = (name, answers) => {
@@ -214,18 +223,18 @@ export default {
                     ];
                     prices.sort((a, b) => a - b);
                     modalData.SubText = "+$" + prices[0] + " - $" + prices[prices.length - 1];
-                    this.updateWipersToDisplay("both");
+                    this.updateWipersToDisplay(wipersToDisplayStrings.BOTH);
                     buttons.push(modalData);
                 } else {
                     // NO FRONT WIPERS IN CART; SHOW ONLY FRONT WIPERS BUTTON
                     modalData.SubText = "+$" + this.wipersModal.totalFrontPrice;
-                    this.updateWipersToDisplay("front");
+                    this.updateWipersToDisplay(wipersToDisplayStrings.FRONT);
                     buttons.push(modalData);
                 }
             } else if (!rearWipersInCart && this.wipersModal.rearWiperLineItems.length > 0) {
                 // NO REAR WIPERS IN CART; SHOW ONLY REAR WIPERS BUTTON
                 modalData.SubText = "+$" + this.wipersModal.totalRearPrice;
-                this.updateWipersToDisplay("rear");
+                this.updateWipersToDisplay(wipersToDisplayStrings.REAR);
                 buttons.push(modalData);
             }