diff --git a/fusion_plating/fusion_plating_configurator/models/__init__.py b/fusion_plating/fusion_plating_configurator/models/__init__.py
index 47e3702d..25c2ab94 100644
--- a/fusion_plating/fusion_plating_configurator/models/__init__.py
+++ b/fusion_plating/fusion_plating_configurator/models/__init__.py
@@ -13,6 +13,7 @@ from . import fp_sale_description_template
 from . import fp_quote_configurator
 from . import sale_order
 from . import sale_order_line
+from . import account_move_line
 from . import fp_sale_assembly
 from . import res_partner
 from . import fp_process_node
diff --git a/fusion_plating/fusion_plating_configurator/models/account_move_line.py b/fusion_plating/fusion_plating_configurator/models/account_move_line.py
new file mode 100644
index 00000000..6f4ebda0
--- /dev/null
+++ b/fusion_plating/fusion_plating_configurator/models/account_move_line.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Copyright 2026 Nexa Systems Inc.
+# License OPL-1 (Odoo Proprietary License v1.0)
+# Part of the Fusion Plating product family.
+#
+# Sub 2 Task 19 — propagate the customer part reference from SO line to
+# invoice line so customer-facing invoice PDFs can print the part number
+# via the shared fusion_plating_reports.customer_line_header macro.
+
+from odoo import fields, models
+
+
+class AccountMoveLine(models.Model):
+    _inherit = 'account.move.line'
+
+    x_fc_part_catalog_id = fields.Many2one(
+        'fp.part.catalog',
+        string='Part',
+        help="Copied from sale.order.line on invoice creation so customer-"
+             "facing invoice PDFs can render the customer's part number.",
+    )
diff --git a/fusion_plating/fusion_plating_configurator/models/sale_order_line.py b/fusion_plating/fusion_plating_configurator/models/sale_order_line.py
index 87b19e6b..abf7b309 100644
--- a/fusion_plating/fusion_plating_configurator/models/sale_order_line.py
+++ b/fusion_plating/fusion_plating_configurator/models/sale_order_line.py
@@ -89,3 +89,15 @@ class SaleOrderLine(models.Model):
     def action_unarchive_line(self):
         self.write({'x_fc_archived': False})
         return True
+
+    def _prepare_invoice_line(self, **optional_values):
+        """Carry x_fc_part_catalog_id from SO line to invoice line.
+
+        Sub 2 Task 19 — lets the customer-facing invoice PDF render the
+        customer's part number via the shared customer_line_header macro
+        instead of the internal service SKU.
+        """
+        vals = super()._prepare_invoice_line(**optional_values)
+        if self.x_fc_part_catalog_id:
+            vals['x_fc_part_catalog_id'] = self.x_fc_part_catalog_id.id
+        return vals
diff --git a/fusion_plating/fusion_plating_reports/report/report_fp_invoice.xml b/fusion_plating/fusion_plating_reports/report/report_fp_invoice.xml
index 7e3eaaa2..29965856 100644
--- a/fusion_plating/fusion_plating_reports/report/report_fp_invoice.xml
+++ b/fusion_plating/fusion_plating_reports/report/report_fp_invoice.xml
@@ -80,8 +80,7 @@
                             <table class="bordered">
                                 <thead>
                                     <tr>
-                                        <th style="width: 12%;">SKU</th>
-                                        <th class="text-start" style="width: 40%;">DESCRIPTION</th>
+                                        <th class="text-start" style="width: 52%;">PART</th>
                                         <th style="width: 8%;">QTY</th>
                                         <th style="width: 8%;">UOM</th>
                                         <th style="width: 12%;">UNIT PRICE</th>
@@ -92,20 +91,15 @@
                                 <tbody>
                                     <t t-foreach="doc.invoice_line_ids" t-as="line">
                                         <t t-if="line.display_type == 'line_section'">
-                                            <tr class="section-row"><td colspan="7"><strong t-field="line.name"/></td></tr>
+                                            <tr class="section-row"><td colspan="6"><strong t-field="line.name"/></td></tr>
                                         </t>
                                         <t t-elif="line.display_type == 'line_note'">
-                                            <tr class="note-row"><td colspan="7"><span t-field="line.name"/></td></tr>
+                                            <tr class="note-row"><td colspan="6"><span t-field="line.name"/></td></tr>
                                         </t>
                                         <t t-elif="not line.display_type or line.display_type == 'product'">
                                             <tr>
-                                                <td class="text-center"><span t-esc="line.product_id.default_code or ''"/></td>
                                                 <td>
-                                                    <t t-set="clean_name" t-value="line.name"/>
-                                                    <t t-if="line.name and '] ' in line.name">
-                                                        <t t-set="clean_name" t-value="line.name.split('] ', 1)[1]"/>
-                                                    </t>
-                                                    <span t-esc="clean_name"/>
+                                                    <t t-call="fusion_plating_reports.customer_line_header"/>
                                                 </td>
                                                 <td class="text-center">
                                                     <span t-esc="int(line.quantity) if line.quantity == int(line.quantity) else line.quantity"/>
@@ -268,12 +262,11 @@
 
                             <!-- Lines — hide discount column unless at least one line has a discount -->
                             <t t-set="has_discount" t-value="any(l.discount for l in doc.invoice_line_ids)"/>
-                            <t t-set="col_count" t-value="8 if has_discount else 7"/>
+                            <t t-set="col_count" t-value="7 if has_discount else 6"/>
                             <table class="bordered">
                                 <thead>
                                     <tr>
-                                        <th style="width: 10%;">SKU</th>
-                                        <th class="text-start" style="width: 32%;">DESCRIPTION</th>
+                                        <th class="text-start" style="width: 42%;">PART</th>
                                         <th style="width: 8%;">QTY</th>
                                         <th style="width: 8%;">UOM</th>
                                         <th style="width: 12%;">UNIT PRICE</th>
@@ -292,13 +285,8 @@
                                         </t>
                                         <t t-elif="not line.display_type or line.display_type == 'product'">
                                             <tr>
-                                                <td class="text-center"><span t-esc="line.product_id.default_code or ''"/></td>
                                                 <td>
-                                                    <t t-set="clean_name" t-value="line.name"/>
-                                                    <t t-if="line.name and '] ' in line.name">
-                                                        <t t-set="clean_name" t-value="line.name.split('] ', 1)[1]"/>
-                                                    </t>
-                                                    <span t-esc="clean_name"/>
+                                                    <t t-call="fusion_plating_reports.customer_line_header"/>
                                                 </td>
                                                 <td class="text-center">
                                                     <span t-esc="int(line.quantity) if line.quantity == int(line.quantity) else line.quantity"/>