Borderlands 4: All Vault Key Fragment Locations
Complete guide to finding every Vault Key Fragment and unlocking the Primordial Vaults
What Are Vault Key Fragments in Borderlands 4?
Vault Key Fragments are special collectibles in Borderlands 4 that grant access to the game's most challenging and rewarding content - the Primordial Vaults.
Each region contains three hidden Vault Key Fragments that combine into a complete Vault Key. These fragments are strategically placed throughout the game world, requiring exploration and puzzle-solving to discover.
Quick Facts:
- • 9 Total Vault Key Fragments across 3 regions
- • Order Silos reveal fragment locations
- • Each region has its own Primordial Vault
- • Vaults contain legendary loot and bosses
Borderlands 4 Vault Key Fragment Map Locations
Interactive Map Overview
Activities
Collectibles
Enemies & Points of Interest
Kairos Region Vault Key Fragment Locations
Using Order Silos to Find Fragments
Capturing Order Silos in Kairos will highlight the general area of nearby Vault Key Fragments. These military installations are crucial for fragment hunters.
Key Locations in Kairos:
Abandoned Auger Mine
0/7 collectibles found
Order Bunker
0/6 collectibles found
Ripper Drill Site
0/6 collectibles found
Video Guide: Kairos Fragment Hunting
The Fadefields Vault Key Fragment Locations Guide
| Fragment & Location | How to Obtain | Difficulty |
|---|---|---|
|
Vault Key Fragment 1 Coastal Bonescape |
Located on top of a crate in Stillshore area. Requires platforming to reach. | Easy |
|
Vault Key Fragment 2 The Howl |
Found inside large rock formation northeast of The Launchpad. Cave entrance is hidden to the north. | Medium |
|
Vault Key Fragment 3 Idolator's Noose |
Hidden below main building at Rosemary Reserve. Use grapple to remove ventilation cover. | Hard |
The entrance to The Howl cave system where Fragment 2 is hidden
Grapple point needed to access Fragment 3 at Idolator's Noose
How to Use Vault Key Fragments in Borderlands 4
Step 1: Collect Three Regional Fragments
Each region requires three specific Vault Key Fragments to create a complete key. Fragments are not interchangeable between regions.
Step 2: Locate the Primordial Vault Entrance
Once you have all three fragments, the Vault Entrance location will be highlighted on your map. Some entrances require specific routes or hidden paths.
Pro Tips for Vault Hunting
- • Always capture Order Silos first - they reveal fragment locations
- • Some fragments require specific character abilities or gear
- • Vault entrances often have powerful guardians - come prepared
- • Fragment locations may change in True Vault Hunter Mode
Borderlands 4 Primordial Vault Rewards and Loot
Legendary Weapons
Exclusive guns only found in Primordial Vaults
Unique Class Mods
Powerful modifications for your character class
Trophy Items
Cosmetic items to show off your vault hunting skills
Vault Boss Encounters
Each Primordial Vault contains a unique boss encounter with special mechanics and attack patterns. Defeating these bosses guarantees high-tier loot.
Start Your Vault Hunting Journey Today!
With this complete guide to Borderlands 4 Vault Key Fragment locations, you're ready to unlock every Primordial Vault and claim their legendary rewards.