diff -u b/modules/ubercart/src/Plugin/migrate/source/d6/Product.php b/modules/ubercart/src/Plugin/migrate/source/d6/Product.php
--- b/modules/ubercart/src/Plugin/migrate/source/d6/Product.php
+++ b/modules/ubercart/src/Plugin/migrate/source/d6/Product.php
@@ -27,8 +27,9 @@
     $query->fields('nr', ['body', 'teaser']);
     $query->fields('ff', ['name']);
     $query->distinct();
-
-    $a = $query->execute()->fetchAll();
+    if (isset($this->configuration['node_type'])) {
+      $query->condition('n.type', $this->configuration['node_type']);
+    }
     return $query;
   }
 
only in patch2:
unchanged:
--- a/modules/ubercart/tests/src/Kernel/Plugin/migrate/source/d6/NodeTest.php
+++ b/modules/ubercart/tests/src/Kernel/Plugin/migrate/source/d6/NodeTest.php
@@ -99,7 +99,7 @@ class NodeTest extends MigrateSqlSourceTestBase {
         'nid' => 2,
         'vid' => 2,
         'uid' => 2,
-        'title' => 'node title 2',
+        'title' => 'T Shirt',
         'body' => 'body for node 2',
         'teaser' => 'teaser for node 2',
         'log' => '',
@@ -110,7 +110,7 @@ class NodeTest extends MigrateSqlSourceTestBase {
         'nid' => 5,
         'vid' => 5,
         'uid' => 2,
-        'title' => 'node title 5',
+        'title' => 'Bag',
         'body' => 'body for node 5',
         'teaser' => 'teaser for node 5',
         'log' => '',