diff --git a/.oca/oca-port/blacklist/uom_unece.json b/.oca/oca-port/blacklist/uom_unece.json
new file mode 100644
index 000000000..2980a2a85
--- /dev/null
+++ b/.oca/oca-port/blacklist/uom_unece.json
@@ -0,0 +1,5 @@
+{
+  "pull_requests": {
+    "OCA/community-data-files#185": "(auto) Nothing to port from PR #185"
+  }
+}
diff --git a/uom_unece/models/uom_uom.py b/uom_unece/models/uom_uom.py
index ab0e0419c..905027268 100644
--- a/uom_unece/models/uom_uom.py
+++ b/uom_unece/models/uom_uom.py
@@ -2,7 +2,8 @@
 # @author: Alexis de Lattre <alexis.delattre@akretion.com>
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
 
-from odoo import fields, models
+from odoo import api, fields, models
+from odoo.tools import ormcache
 
 
 class UomUom(models.Model):
@@ -13,3 +14,33 @@ class UomUom(models.Model):
         help="Standard nomenclature of the United Nations Economic "
         "Commission for Europe (UNECE).",
     )
+
+    @api.model
+    @ormcache()
+    def _get_uom_id_by_unece_code(self):
+        uoms = self.with_context(active_test=False).search(
+            [("unece_code", "!=", False)]
+        )
+        return {u.unece_code: u.id for u in uoms}
+
+    def get_uom_id_by_unece_code(self, unece_code):
+        uom_ids_by_code = self._get_uom_id_by_unece_code()
+        return uom_ids_by_code.get(unece_code)
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        records = super().create(vals_list)
+        if records.filtered("unece_code"):
+            self.env.registry.clear_cache()
+        return records
+
+    def write(self, vals):
+        res = super().write(vals)
+        if "unece_code" in vals:
+            self.env.registry.clear_cache()
+        return res
+
+    def unlink(self):
+        res = super().unlink()
+        self.env.registry.clear_cache()
+        return res
diff --git a/uom_unece/tests/__init__.py b/uom_unece/tests/__init__.py
new file mode 100644
index 000000000..fe1997c6f
--- /dev/null
+++ b/uom_unece/tests/__init__.py
@@ -0,0 +1 @@
+from . import test_uom_unece
diff --git a/uom_unece/tests/test_uom_unece.py b/uom_unece/tests/test_uom_unece.py
new file mode 100644
index 000000000..e8146b459
--- /dev/null
+++ b/uom_unece/tests/test_uom_unece.py
@@ -0,0 +1,44 @@
+# Copyright 2026 ACSONE SA/NV
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo.tests.common import TransactionCase
+
+
+class TestUomUnece(TransactionCase):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.uom_model = cls.env["uom.uom"]
+        cls.uom_unit = cls.env.ref("uom.product_uom_unit")
+        cls.uom_dozen = cls.env.ref("uom.product_uom_dozen")
+        cls.uom_hour = cls.env.ref("uom.product_uom_hour")
+
+    def test_get_uom_id_by_unece_code(self):
+        self.assertEqual(
+            self.uom_model.get_uom_id_by_unece_code("C62"), self.uom_unit.id
+        )
+        self.assertEqual(
+            self.uom_model.get_uom_id_by_unece_code("DPC"), self.uom_dozen.id
+        )
+        self.assertEqual(
+            self.uom_model.get_uom_id_by_unece_code("HUR"), self.uom_hour.id
+        )
+
+    def test_get_uom_id_by_unece_code_unknown(self):
+        self.assertFalse(self.uom_model.get_uom_id_by_unece_code("UNKNOWN"))
+
+    def test_get_uom_id_by_unece_code_cache_invalidation_on_write(self):
+        self.assertEqual(
+            self.uom_model.get_uom_id_by_unece_code("C62"), self.uom_unit.id
+        )
+        self.uom_unit.write({"unece_code": "C62_NEW"})
+        self.assertFalse(self.uom_model.get_uom_id_by_unece_code("C62"))
+        self.assertEqual(
+            self.uom_model.get_uom_id_by_unece_code("C62_NEW"), self.uom_unit.id
+        )
+
+    def test_get_uom_id_by_unece_code_cache_invalidation_on_unlink(self):
+        uom = self.uom_hour.copy({"name": "Test Hour Copy", "unece_code": "ZZZ"})
+        self.assertEqual(self.uom_model.get_uom_id_by_unece_code("ZZZ"), uom.id)
+        uom.unlink()
+        self.assertFalse(self.uom_model.get_uom_id_by_unece_code("ZZZ"))