diff --git a/changelog/19791.txt b/changelog/19791.txt
new file mode 100644
index 000000000..26722cde3
--- /dev/null
+++ b/changelog/19791.txt
@@ -0,0 +1,3 @@
+```release-note:improvement
+ui: add allowed_managed_keys field to secret engine mount options
+```
diff --git a/ui/app/components/mount-backend-form.js b/ui/app/components/mount-backend-form.js
index 6fa141265..6b09f5e1f 100644
--- a/ui/app/components/mount-backend-form.js
+++ b/ui/app/components/mount-backend-form.js
@@ -56,6 +56,17 @@ export default class MountBackendForm extends Component {
     }
   }
 
+  typeChangeSideEffect(type) {
+    if (!this.args.mountType === 'secret') return;
+    if (type === 'pki') {
+      // If type PKI, set max lease to ~10years
+      this.args.mountModel.config.maxLeaseTtl = '3650d';
+    } else {
+      // otherwise reset
+      this.args.mountModel.config.maxLeaseTtl = 0;
+    }
+  }
+
   checkModelValidity(model) {
     const { isValid, state, invalidFormMessage } = model.validate();
     this.modelValidations = state;
@@ -158,6 +169,7 @@ export default class MountBackendForm extends Component {
   @action
   setMountType(value) {
     this.args.mountModel.type = value;
+    this.typeChangeSideEffect(value);
     this.checkPathChange(value);
   }
 }
diff --git a/ui/app/decorators/model-expanded-attributes.js b/ui/app/decorators/model-expanded-attributes.js
index 60db028a3..a5aa840ba 100644
--- a/ui/app/decorators/model-expanded-attributes.js
+++ b/ui/app/decorators/model-expanded-attributes.js
@@ -73,7 +73,14 @@ export function withExpandedAttributes() {
             });
             const expanded = expandAttributeMeta(rModel, rAttrNames);
             expanded.forEach((attr) => {
-              byKey[`${name}.${attr.name}`] = attr;
+              byKey[`${name}.${attr.name}`] = {
+                ...attr,
+                options: {
+                  ...attr.options,
+                  // This ensures the correct path is updated in FormField
+                  fieldValue: `${name}.${attr.fieldValue || attr.name}`,
+                },
+              };
             });
           }, this);
           this._allByKey = byKey;
diff --git a/ui/app/helpers/mountable-secret-engines.js b/ui/app/helpers/mountable-secret-engines.js
index a771f4bd9..33f1228fe 100644
--- a/ui/app/helpers/mountable-secret-engines.js
+++ b/ui/app/helpers/mountable-secret-engines.js
@@ -87,6 +87,7 @@ const MOUNTABLE_SECRET_ENGINES = [
   {
     displayName: 'PKI Certificates',
     type: 'pki',
+    // engineRoute: 'pki.overview', // TODO VAULT-13822
     category: 'generic',
   },
   {
diff --git a/ui/app/models/mount-config.js b/ui/app/models/mount-config.js
index 54dd1f678..8f938b259 100644
--- a/ui/app/models/mount-config.js
+++ b/ui/app/models/mount-config.js
@@ -63,5 +63,8 @@ export default class MountConfigModel extends Model {
   })
   tokenType;
 
-  @attr() allowedManagedKeys;
+  @attr({
+    editType: 'stringArray',
+  })
+  allowedManagedKeys;
 }
diff --git a/ui/app/models/secret-engine.js b/ui/app/models/secret-engine.js
index 973429908..dbe083c4e 100644
--- a/ui/app/models/secret-engine.js
+++ b/ui/app/models/secret-engine.js
@@ -155,6 +155,7 @@ export default class SecretEngineModel extends Model {
       fields.push('config.defaultLeaseTtl', 'config.maxLeaseTtl');
     }
     fields.push(
+      'config.allowedManagedKeys',
       'config.auditNonHmacRequestKeys',
       'config.auditNonHmacResponseKeys',
       'config.passthroughRequestHeaders',
@@ -189,6 +190,7 @@ export default class SecretEngineModel extends Model {
           ...CORE_OPTIONS,
           'config.defaultLeaseTtl',
           'config.maxLeaseTtl',
+          'config.allowedManagedKeys',
           ...STANDARD_CONFIG,
         ];
         break;
@@ -198,21 +200,32 @@ export default class SecretEngineModel extends Model {
           ...CORE_OPTIONS,
           'config.defaultLeaseTtl',
           'config.maxLeaseTtl',
+          'config.allowedManagedKeys',
           ...STANDARD_CONFIG,
         ];
         break;
       case 'database':
         // Highlight TTLs in default
         defaultFields = ['path', 'config.defaultLeaseTtl', 'config.maxLeaseTtl'];
+        optionFields = [...CORE_OPTIONS, 'config.allowedManagedKeys', ...STANDARD_CONFIG];
+        break;
+      case 'pki':
+        defaultFields = ['path', 'config.defaultLeaseTtl', 'config.maxLeaseTtl', 'config.allowedManagedKeys'];
         optionFields = [...CORE_OPTIONS, ...STANDARD_CONFIG];
         break;
       case 'keymgmt':
         // no ttl options for keymgmt
-        optionFields = [...CORE_OPTIONS, ...STANDARD_CONFIG];
+        optionFields = [...CORE_OPTIONS, 'config.allowedManagedKeys', ...STANDARD_CONFIG];
         break;
       default:
         defaultFields = ['path'];
-        optionFields = [...CORE_OPTIONS, 'config.defaultLeaseTtl', 'config.maxLeaseTtl', ...STANDARD_CONFIG];
+        optionFields = [
+          ...CORE_OPTIONS,
+          'config.defaultLeaseTtl',
+          'config.maxLeaseTtl',
+          'config.allowedManagedKeys',
+          ...STANDARD_CONFIG,
+        ];
         break;
     }
 
diff --git a/ui/app/templates/vault/cluster/secrets/backend/configuration.hbs b/ui/app/templates/vault/cluster/secrets/backend/configuration.hbs
index ba60af346..7890b5d31 100644
--- a/ui/app/templates/vault/cluster/secrets/backend/configuration.hbs
+++ b/ui/app/templates/vault/cluster/secrets/backend/configuration.hbs
@@ -29,13 +29,14 @@
       <InfoTableRow
         @alwaysRender={{not (is-empty-value (get this.model attr.name))}}
         @label={{or attr.options.label (to-label attr.name)}}
-        @value={{stringify (get this.model attr.name)}}
+        @value={{stringify (get this.model (or attr.options.fieldValue attr.name))}}
       />
     {{else}}
       <InfoTableRow
         @alwaysRender={{and (not (is-empty-value (get this.model attr.name))) (not-eq attr.name "version")}}
+        @formatTtl={{eq attr.options.editType "ttl"}}
         @label={{or attr.options.label (to-label attr.name)}}
-        @value={{get this.model attr.name}}
+        @value={{get this.model (or attr.options.fieldValue attr.name)}}
       />
     {{/if}}
   {{/each}}
diff --git a/ui/tests/acceptance/settings/mount-secret-backend-test.js b/ui/tests/acceptance/settings/mount-secret-backend-test.js
index a95509536..33c9152e5 100644
--- a/ui/tests/acceptance/settings/mount-secret-backend-test.js
+++ b/ui/tests/acceptance/settings/mount-secret-backend-test.js
@@ -32,8 +32,6 @@ module('Acceptance | settings/mount-secret-backend', function (hooks) {
     const path = `mount-kv-${this.uid}`;
     const defaultTTLHours = 100;
     const maxTTLHours = 300;
-    const defaultTTLSeconds = (defaultTTLHours * 60 * 60).toString();
-    const maxTTLSeconds = (maxTTLHours * 60 * 60).toString();
 
     await page.visit();
 
@@ -51,15 +49,14 @@ module('Acceptance | settings/mount-secret-backend', function (hooks) {
       .maxTTLVal(maxTTLHours)
       .submit();
     await configPage.visit({ backend: path });
-    assert.strictEqual(configPage.defaultTTL, `${defaultTTLSeconds}s`, 'shows the proper TTL');
-    assert.strictEqual(configPage.maxTTL, `${maxTTLSeconds}s`, 'shows the proper max TTL');
+    assert.strictEqual(configPage.defaultTTL, `${defaultTTLHours}h`, 'shows the proper TTL');
+    assert.strictEqual(configPage.maxTTL, `${maxTTLHours}h`, 'shows the proper max TTL');
   });
 
   test('it sets the ttl when enabled then disabled', async function (assert) {
     // always force the new mount to the top of the list
     const path = `mount-kv-${this.uid}`;
     const maxTTLHours = 300;
-    const maxTTLSeconds = (maxTTLHours * 60 * 60).toString();
 
     await page.visit();
 
@@ -76,8 +73,33 @@ module('Acceptance | settings/mount-secret-backend', function (hooks) {
       .maxTTLVal(maxTTLHours)
       .submit();
     await configPage.visit({ backend: path });
-    assert.strictEqual(configPage.defaultTTL, '0', 'shows the proper TTL');
-    assert.strictEqual(configPage.maxTTL, `${maxTTLSeconds}s`, 'shows the proper max TTL');
+    assert.strictEqual(configPage.defaultTTL, '0s', 'shows the proper TTL');
+    assert.strictEqual(configPage.maxTTL, `${maxTTLHours}h`, 'shows the proper max TTL');
+  });
+
+  test('it sets the max ttl after pki chosen, resets after', async function (assert) {
+    await page.visit();
+    assert.strictEqual(currentRouteName(), 'vault.cluster.settings.mount-secret-backend');
+    await page.selectType('pki');
+    await page.next();
+    assert.dom('[data-test-input="maxLeaseTtl"]').exists();
+    assert
+      .dom('[data-test-input="maxLeaseTtl"] [data-test-ttl-toggle]')
+      .isChecked('Toggle is checked by default');
+    assert.dom('[data-test-input="maxLeaseTtl"] [data-test-ttl-value]').hasValue('3650');
+    assert.dom('[data-test-input="maxLeaseTtl"] [data-test-select="ttl-unit"]').hasValue('d');
+
+    // Go back and choose a different type
+    await page.back();
+    await page.selectType('database');
+    await page.next();
+    assert.dom('[data-test-input="maxLeaseTtl"]').exists('3650');
+    assert
+      .dom('[data-test-input="maxLeaseTtl"] [data-test-ttl-toggle]')
+      .isNotChecked('Toggle is unchecked by default');
+    await page.enableMaxTtl();
+    assert.dom('[data-test-input="maxLeaseTtl"] [data-test-ttl-value]').hasValue('');
+    assert.dom('[data-test-input="maxLeaseTtl"] [data-test-select="ttl-unit"]').hasValue('s');
   });
 
   test('it throws error if setting duplicate path name', async function (assert) {
diff --git a/ui/tests/pages/secrets/backend/configuration.js b/ui/tests/pages/secrets/backend/configuration.js
index 002512699..2ea641a0d 100644
--- a/ui/tests/pages/secrets/backend/configuration.js
+++ b/ui/tests/pages/secrets/backend/configuration.js
@@ -7,6 +7,6 @@ import { create, visitable, text } from 'ember-cli-page-object';
 
 export default create({
   visit: visitable('/vault/secrets/:backend/configuration'),
-  defaultTTL: text('[data-test-row-value="Default Lease TTL"]'),
-  maxTTL: text('[data-test-row-value="Max Lease TTL"]'),
+  defaultTTL: text('[data-test-value-div="Default Lease TTL"]'),
+  maxTTL: text('[data-test-value-div="Max Lease TTL"]'),
 });
diff --git a/ui/tests/unit/models/secret-engine-test.js b/ui/tests/unit/models/secret-engine-test.js
index 1b977dbb6..c82a77efb 100644
--- a/ui/tests/unit/models/secret-engine-test.js
+++ b/ui/tests/unit/models/secret-engine-test.js
@@ -66,6 +66,7 @@ module('Unit | Model | secret-engine', function (hooks) {
         'sealWrap',
         'config.defaultLeaseTtl',
         'config.maxLeaseTtl',
+        'config.allowedManagedKeys',
         'config.auditNonHmacRequestKeys',
         'config.auditNonHmacResponseKeys',
         'config.passthroughRequestHeaders',
@@ -88,6 +89,7 @@ module('Unit | Model | secret-engine', function (hooks) {
         'sealWrap',
         'config.defaultLeaseTtl',
         'config.maxLeaseTtl',
+        'config.allowedManagedKeys',
         'config.auditNonHmacRequestKeys',
         'config.auditNonHmacResponseKeys',
         'config.passthroughRequestHeaders',
@@ -112,6 +114,7 @@ module('Unit | Model | secret-engine', function (hooks) {
         'sealWrap',
         'config.defaultLeaseTtl',
         'config.maxLeaseTtl',
+        'config.allowedManagedKeys',
         'config.auditNonHmacRequestKeys',
         'config.auditNonHmacResponseKeys',
         'config.passthroughRequestHeaders',
@@ -136,6 +139,7 @@ module('Unit | Model | secret-engine', function (hooks) {
         'accessor',
         'local',
         'sealWrap',
+        'config.allowedManagedKeys',
         'config.auditNonHmacRequestKeys',
         'config.auditNonHmacResponseKeys',
         'config.passthroughRequestHeaders',
@@ -161,6 +165,7 @@ module('Unit | Model | secret-engine', function (hooks) {
             'sealWrap',
             'config.defaultLeaseTtl',
             'config.maxLeaseTtl',
+            'config.allowedManagedKeys',
             'config.auditNonHmacRequestKeys',
             'config.auditNonHmacResponseKeys',
             'config.passthroughRequestHeaders',
@@ -186,6 +191,7 @@ module('Unit | Model | secret-engine', function (hooks) {
             'sealWrap',
             'config.defaultLeaseTtl',
             'config.maxLeaseTtl',
+            'config.allowedManagedKeys',
             'config.auditNonHmacRequestKeys',
             'config.auditNonHmacResponseKeys',
             'config.passthroughRequestHeaders',
@@ -212,6 +218,7 @@ module('Unit | Model | secret-engine', function (hooks) {
             'sealWrap',
             'config.defaultLeaseTtl',
             'config.maxLeaseTtl',
+            'config.allowedManagedKeys',
             'config.auditNonHmacRequestKeys',
             'config.auditNonHmacResponseKeys',
             'config.passthroughRequestHeaders',
@@ -229,6 +236,30 @@ module('Unit | Model | secret-engine', function (hooks) {
 
       assert.deepEqual(model.get('formFieldGroups'), [
         { default: ['path', 'config.defaultLeaseTtl', 'config.maxLeaseTtl'] },
+        {
+          'Method Options': [
+            'description',
+            'config.listingVisibility',
+            'local',
+            'sealWrap',
+            'config.allowedManagedKeys',
+            'config.auditNonHmacRequestKeys',
+            'config.auditNonHmacResponseKeys',
+            'config.passthroughRequestHeaders',
+            'config.allowedResponseHeaders',
+          ],
+        },
+      ]);
+    });
+
+    test('returns correct values for pki', function (assert) {
+      assert.expect(1);
+      const model = this.store.createRecord('secret-engine', {
+        type: 'pki',
+      });
+
+      assert.deepEqual(model.get('formFieldGroups'), [
+        { default: ['path', 'config.defaultLeaseTtl', 'config.maxLeaseTtl', 'config.allowedManagedKeys'] },
         {
           'Method Options': [
             'description',
@@ -258,6 +289,7 @@ module('Unit | Model | secret-engine', function (hooks) {
             'config.listingVisibility',
             'local',
             'sealWrap',
+            'config.allowedManagedKeys',
             'config.auditNonHmacRequestKeys',
             'config.auditNonHmacResponseKeys',
             'config.passthroughRequestHeaders',