Ancient Crawlers in Borderlands 4 are one of the most rewarding activity types you’ll encounter across Kairos. Each one hides a vehicle cosmetic along with SDU Tokens, and completing all of them ties into the Hunks of Junk Challenge, granting extra rewards, XP, and Eridium. With 11 Crawlers scattered across the world, tracking them all down can be tricky—this guide breaks down where to find each one and how to activate their release clamps.
How Ancient Crawlers Work
When you approach an Ancient Crawler, the game pins the activity on your HUD. To activate it, you’ll need to find a nearby battery and insert it into the crawler’s station. Once powered, the clamps release, and you can climb to the top to grab the cosmetic. Some require creative platforming, grapples, or battery tossing to reach the station.
All 11 Ancient Crawler Locations
1. Slugmetal Ditch – Coastal Bonescape
- Location: North section of Coastal Bonescape in The Fadefields.
- Reward: Smiley Vehicle Paintjob + 40 SDU.
- Tip: Look east for a raised platform with the battery. Carry it to the release clamps near a skull pillar, then grapple your way to the top.
2. The Roaming Pasture – Hungering Plain
- Location: North-east Hungering Plain in The Fadefields.
- Reward: Awooooo! Vehicle Paintjob + 40 SDU.
- Tip: Toss the battery up scaffolding and ladders to avoid dropping it. Once powered, grapple up to claim your reward.
3. The Eminent Husk – Idolator’s Noose
- Location: Western side of Idolator’s Noose.
- Reward: Afterparty Vehicle Paintjob + 40 SDU.
- Tip: Grab the battery from a truck bed, then climb scaffolding and jump platforms to reach the release clamps.
4. Pester’s Grotto – Idolator’s Noose
- Location: Eastern Idolator’s Noose.
- Reward: Itty Bitty Kitty Committee Vehicle Paintjob + 40 SDU.
- Tip: Use the air chute activated by a red button to safely transport the battery, then climb ladders to insert it.
5. The Great Work – Cuspid Climb
- Location: South-east area of Cuspid Climb in Terminus Range.
- Reward: Future Proof Vehicle Paintjob + 40 SDU.
- Tip: Grapple up scaffolding, bring the battery across ramps and crates, then climb to reach the top.
6. The Stonewarden – Cuspid Climb
- Location: Northern Cuspid Climb in Terminus Range.
- Reward: Bestia Rossa Vehicle Paintjob + 40 SDU.
- Tip: Pick up the battery from a dismantled vehicle, toss it to higher platforms, and use grapples to scale the crawler.
7. Eureka Stane – The Low Leys
- Location: South-west Low Leys in Terminus Range.
- Reward: La Verdita Vehicle Paintjob + 40 SDU.
- Tip: Grapple to scaffolding held by a crane to retrieve the battery, then bring it back to the crawler’s surface.
8. Forgotten Cornerstone – The Low Leys
- Location: Northern Low Leys, inside a cave.
- Reward: Wellspring-Loaded Vehicle Paintjob + 40 SDU.
- Tip: Collect the battery beneath the crawler through icicles, then toss it to raised platforms and climb your way to the top.
9. The Belle – Lopside
- Location: Western Lopside in Carcadia Burn.
- Reward: Never Say DIY Vehicle Paintjob + 40 SDU.
- Tip: Grapple onto the crawler, toss the battery up ladders, and use grapples above to finish the climb.
10. Crumpled Lurch – Tonnage Peel
- Location: North-east Tonnage Peel in Carcadia Burn.
- Reward: Frenzy Forever Vehicle Paintjob + 40 SDU.
- Tip: Retrieve the battery from a building to the northwest, then climb platforms and grapple ridges to reach the release clamps.
11. Wanton Tread – Ruined Sumplands
- Location: South-west Ruined Sumplands in Carcadia Burn.
- Reward: Prison Buddy Vehicle Paintjob + 40 SDU.
- Tip: Grab the battery from a scrap heap, then follow the stairs inside the crawler, climbing crates and mantling platforms until you reach the top.
Ancient Crawler Rewards
- Each Ancient Crawler grants a unique vehicle paintjob and 40 SDU Tokens.
- Completing all 11 awards an extra Vehicle Cosmetic, plus cash, XP, and Eridium through the Hunks of Junk Challenge.
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Aside from the style points of new vehicle cosmetics, Ancient Crawlers are tied to 100% completion progress and the Ruler of Everything achievement. Since none are missable, you can take your time and collect them after finishing the story in free-roam. Play Now!
