diff --git a/src/mixins/base-mixin.js b/src/mixins/base-mixin.js
index 0bebdc372..9018de79b 100644
--- a/src/mixins/base-mixin.js
+++ b/src/mixins/base-mixin.js
@@ -64,17 +64,14 @@ export default {
             };
         },
         getTierOnePackagePrice(lineItems) {
-            let totalPrice = 0;
-            lineItems.forEach((lineItem) => {
-                const partType = lineItem.partType.toUpperCase();
-                if (
-                    partType != partTypeStrings.FRONT_WIPER &&
-                    partType != partTypeStrings.REAR_WIPER &&
-                    partType != partTypeStrings.RAIN_DEFENSE
-                ) {
-                    totalPrice += this.getTotalLineItemPrice(lineItem);
-                }
+            let lineItemsToPrice = lineItems.filter((lineItem) => {
+                return (
+                    lineItem.partType != partTypeStrings.FRONT_WIPER &&
+                    lineItem.partType != partTypeStrings.REAR_WIPER &&
+                    lineItem.partType != partTypeStrings.RAIN_DEFENSE
+                );
             });
+            let totalPrice = this.getTotalPriceOfAllLineItemsAndChildParts(lineItemsToPrice);
             return totalPrice;
         },
         filterOutFees(lineItems) {
@@ -86,6 +83,18 @@ export default {
             });
             return filteredLineItems;
         },
+        getTotalPriceOfAllLineItemsAndChildParts(lineItems) {
+            let totalPrice = 0;
+            lineItems.forEach((lineItem) => {
+                totalPrice += this.getTotalLineItemPrice(lineItem);
+                if (lineItem.childParts) {
+                    totalPrice += this.getTotalPriceOfAllLineItemsAndChildParts(
+                        lineItem.childParts
+                    );
+                }
+            });
+            return totalPrice;
+        },
         getTotalLineItemPrice(lineItem) {
             return lineItem.kitPrice + lineItem.laborAmount + lineItem.sellingPrice;
         },