diff --git a/src/app/vendors/VendorItems.tsx b/src/app/vendors/VendorItems.tsx
index 5a1661a176..9a46c13ddd 100644
--- a/src/app/vendors/VendorItems.tsx
+++ b/src/app/vendors/VendorItems.tsx
@@ -1,12 +1,15 @@
 import { PressTip } from 'app/dim-ui/PressTip';
 import RichDestinyText from 'app/dim-ui/destiny-symbols/RichDestinyText';
 import { t } from 'app/i18next-t';
+import { DimItem } from 'app/inventory/item-types';
 import { useD2Definitions } from 'app/manifest/selectors';
 import FactionIcon from 'app/progress/FactionIcon';
 import { ReputationRank } from 'app/progress/ReputationRank';
 import { DestinyVendorProgressionType } from 'bungie-api-ts/destiny2';
 import focusingItemOutputs from 'data/d2/focusing-item-outputs.json';
+import { ReactNode } from 'react';
 import BungieImage from '../dim-ui/BungieImage';
+import ItemPopupTrigger from '../inventory/ItemPopupTrigger';
 import VendorItemComponent from './VendorItemComponent';
 import * as styles from './VendorItems.m.scss';
 import { D2Vendor } from './d2-vendors';
@@ -65,8 +68,9 @@ export default function VendorItems({
           <div>
             <h3 className={styles.categoryTitle}>{t('Vendors.Engram')}</h3>
             <div className={styles.vendorItems}>
-              {factionProgress &&
-                (vendor.def.vendorProgressionType !== DestinyVendorProgressionType.Default ? (
+              {/* Clicking the rep track opens the vendor's "help" item popup, if it has one. */}
+              <RepTrackTrigger item={vendor.helpItem?.item}>
+                {vendor.def.vendorProgressionType !== DestinyVendorProgressionType.Default ? (
                   <ReputationRank progress={factionProgress} />
                 ) : (
                   <PressTip
@@ -81,7 +85,8 @@ export default function VendorItems({
                       />
                     </div>
                   </PressTip>
-                ))}
+                )}
+              </RepTrackTrigger>
             </div>
           </div>
         )}
@@ -125,3 +130,19 @@ export default function VendorItems({
     </div>
   );
 }
+
+/** Wraps the rep track so clicking it opens the given "help" item's popup, if there is one. */
+function RepTrackTrigger({ item, children }: { item: DimItem | undefined; children: ReactNode }) {
+  if (!item) {
+    return children;
+  }
+  return (
+    <ItemPopupTrigger item={item}>
+      {(ref, onClick) => (
+        <div ref={ref} role="button" tabIndex={0} onClick={onClick}>
+          {children}
+        </div>
+      )}
+    </ItemPopupTrigger>
+  );
+}
diff --git a/src/app/vendors/d2-vendors.ts b/src/app/vendors/d2-vendors.ts
index cc429cf413..02019c738c 100644
--- a/src/app/vendors/d2-vendors.ts
+++ b/src/app/vendors/d2-vendors.ts
@@ -31,10 +31,31 @@ export interface D2Vendor {
   place?: DestinyPlaceDefinition;
   items: VendorItem[];
   currencies: DestinyInventoryItemDefinition[];
+  /**
+   * The vendor's "help" item, if it has one. It describes the reputation track and
+   * is pulled out of the regular sale items so it can be shown alongside the rep
+   * track instead. Only set when the vendor actually has a rep track.
+   */
+  helpItem?: VendorItem;
 }
 
 const vendorOrder = [VendorHashes.AdaTransmog, VendorHashes.Banshee, VendorHashes.Eververse];
 
+/**
+ * Some vendors contain a "help" item that isn't a real sale item, but instead
+ * describes the vendor's reputation track. We pull it out of the regular sale
+ * items and show it alongside the rep track instead.
+ *
+ * These items all use the shared "vendor_help" icon (icon def 13580639, foreground
+ * `.../vendor_help...png`). The more semantic-looking `tooltipStyle: 'vendor_action'`
+ * can't be used because DIM's manifest trimmer blanks `tooltipStyle` out.
+ */
+const HELP_ITEM_ICON_HASH = 13580639;
+
+function isHelpVendorItem(vendorItem: VendorItem) {
+  return vendorItem.displayProperties?.iconHash === HELP_ITEM_ICON_HASH;
+}
+
 export function toVendorGroups(
   context: ItemCreationContext,
   vendorsResponse: DestinyVendorsResponse,
@@ -105,6 +126,21 @@ export function toVendor(
     ),
   );
 
+  // Pull the "help" item out of the regular sale items so it isn't shown as a
+  // normal tile. Surface it on the rep track (if there is one) instead.
+  let helpItem: VendorItem | undefined;
+  const helpIndex = vendorItems.findIndex(isHelpVendorItem);
+  if (helpIndex >= 0) {
+    const [extracted] = vendorItems.splice(helpIndex, 1);
+    if (vendorDef.factionHash && vendor?.progression) {
+      helpItem = extracted;
+      if (helpItem.item) {
+        // It's not a real item, so don't show its placeholder type ("Unknown") in the popup.
+        helpItem.item.typeName = '';
+      }
+    }
+  }
+
   const destinationHash =
     typeof vendor?.vendorLocationIndex === 'number' && vendor.vendorLocationIndex >= 0
       ? // Unadvertised nullability: DestinyVendorDefinition.locations
@@ -143,6 +179,7 @@ export function toVendor(
     place: placeDef,
     items: vendorItems,
     currencies,
+    helpItem,
   };
 }