Index: grails-app/controllers/com/lemans/ds/fitment/PartFitmentController.groovy
===================================================================
diff -u -r9594640eeaa8d1997633490f44c9f78bdb96bfb5 -rf0bdc73afa878b6b0fa96816b130cff559d2cb33
--- grails-app/controllers/com/lemans/ds/fitment/PartFitmentController.groovy	(.../PartFitmentController.groovy)	(revision 9594640eeaa8d1997633490f44c9f78bdb96bfb5)
+++ grails-app/controllers/com/lemans/ds/fitment/PartFitmentController.groovy	(.../PartFitmentController.groovy)	(revision f0bdc73afa878b6b0fa96816b130cff559d2cb33)
@@ -53,7 +53,7 @@
             partFitmentManagerService.deletePartFitmentPositions(values.partNumber, now, auditUserName, values?.partFitmentIds, values?.positions)
             render(toJson([results: [:]]))
         } else {
-            if (values.partFitmentIds) {
+            if (values.partFitmentIds || values.modelYearIds) {
                 data = partFitmentManagerService.deleteMultipleFitments(values, auditUserName)
                 data.errors ? renderErrors(data.errors) : render(toJson([results: [:]]))
             }
Index: grails-app/services/com/lemans/ds/fitment/PartFitmentManagerService.groovy
===================================================================
diff -u -r7906c7d42c8ab60e68a52c367847d315fca0497c -rf0bdc73afa878b6b0fa96816b130cff559d2cb33
--- grails-app/services/com/lemans/ds/fitment/PartFitmentManagerService.groovy	(.../PartFitmentManagerService.groovy)	(revision 7906c7d42c8ab60e68a52c367847d315fca0497c)
+++ grails-app/services/com/lemans/ds/fitment/PartFitmentManagerService.groovy	(.../PartFitmentManagerService.groovy)	(revision f0bdc73afa878b6b0fa96816b130cff559d2cb33)
@@ -105,7 +105,11 @@
      * @return Map containing errors
      */
     Map deleteMultipleFitments(Map values, String username) {
-        List partFitment = partFitmentService.findFitmentsByPartNumberAndPartFitmentIds(values.partNumber, values.partFitmentIds)
+        List partFitment
+        if(!values.partFitmentIds && values.modelYearIds) {
+            values.partFitmentIds = partFitmentService.findFitmentsByPartNumberAndModelYearIds(values.partNumber, values.modelYearIds)*.partFitmentId
+        }
+        partFitment = partFitmentService.findFitmentsByPartNumberAndPartFitmentIds(values.partNumber, values.partFitmentIds)
         deleteFitments(values.partNumber, partFitment ?: [], username)
     }
 
Index: grails-app/services/com/lemans/ds/fitment/PartFitmentService.groovy
===================================================================
diff -u -r4f25033ebbfa12dd62c76adb1c6a262080c42a86 -rf0bdc73afa878b6b0fa96816b130cff559d2cb33
--- grails-app/services/com/lemans/ds/fitment/PartFitmentService.groovy	(.../PartFitmentService.groovy)	(revision 4f25033ebbfa12dd62c76adb1c6a262080c42a86)
+++ grails-app/services/com/lemans/ds/fitment/PartFitmentService.groovy	(.../PartFitmentService.groovy)	(revision f0bdc73afa878b6b0fa96816b130cff559d2cb33)
@@ -66,6 +66,7 @@
      * @return List of partFitments
      */
     List findFitmentsByPartNumberAndPartFitmentIds(String partNumber, List partFitmentIds) {
+        if(!partFitmentIds) return []
         String query =  """SELECT * FROM dbo.PartFitment WITH(NOLOCK)
                 WHERE partNumber = ? AND partFitmentId IN (${partFitmentIds.join(', ')}) AND dateDeleted IS NULL"""
         sql().rows(query, [partNumber])