Recall 18V638 affects 115 2016-2018 Trail King Acs and Aacs trailers for cracking aluminum cross members. Repair is free at any franchised Trail King dealer.
Trail King is recalling 115 2016-2018 Acs and Aacs trailers because aluminum cross members over the suspension can crack at welded corners where they attach to the frame beam. A loose suspension increases crash risk, and Trail King dealers will complete the recall repair free of charge.
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What's wrong?
The aluminum cross member over the suspension on 2016-2018 Trail King Acs and Aacs trailers ties the left and right sides of the frame together. It sits above the suspension and gives the frame a rigid mounting area for suspension loads. That structure needs sound welds where the cross member attaches to the frame beam.
On affected trailers, the aluminum cross member design was too shallow for this application. That left too little room for full weld penetration at the corners where the cross member joins the frame beam. Over time, those inadequate welds can crack, and that cracking can let the suspension loosen from the frame.
Owners or technicians can see the warning sign during inspection. Look for small cracks in the welded corners of the cross member; when those cracks spread, additional cracking in the frame structure can also appear.
Who's affected?
Covers the Acs and Aacs trailer models across the 2016-2018 model years, all tied to the same body or structural component.
| 2017 Trail King Acs | body or structural component |
|---|---|
| 2018 Trail King Aacs | body or structural component |
| 2018 Trail King Acs | body or structural component |
| 2017 Trail King Aacs | body or structural component |
| 2016 Trail King Acs | body or structural component |
| 2016 Trail King Aacs | body or structural component |
| Units affected | 115 |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific trailer is included.
What's the safety risk?
Small weld-corner cracks in the cross member are the warning sign to look for during inspection. If those cracks spread, the frame structure can crack and the suspension can loosen the frame, which increases crash risk. Schedule the repair soon and have visible cracks checked before the next trip. Repair is free at any franchised Trail King dealer.
What should I do?
- Check your VIN to confirm your 2016-2018 Trail King Acs or Aacs trailer is included in this recall.
- Contact a franchised Trail King dealer to schedule the free cross-member replacement that addresses cracked welded corners and loose suspension attachment points.
- Bring the recall notice if Trail King mailed one. If not, reference recall number 18V638 and Trail King recall TK201802 when you call.
- Call Trail King customer service at 1-800-843-3324 with questions before the dealer visit.
- Tow cautiously until the repair, and stop using the trailer if the suspension feels loose or the frame area shows cracking.
What happens at the repair
At the dealer, a Trail King technician replaces the aluminum cross members over the suspension, the parts that attach to the frame beam and help keep the suspension secured. The recall repair is free, with parts and labor covered. Trail King owner notification began October 24, 2018, and the repair is available now, so an included 2016-2018 Acs or Aacs trailer can be scheduled through a Trail King dealer.
Timeline
| September 14, 2018 | NHTSA published the recall |
|---|---|
| October 8, 2018 | Dealer notification began |
| October 8, 2018 | Interim owner notification (was planned for this date) |
| October 24, 2018 | Owner notification mailed |
| November 5, 2018 | Dealer notification ended |
| November 5, 2018 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
Frequently asked questions
What is recall 18V638?
Recall 18V638 covers 115 2016-2018 Trail King Acs and Aacs trailers with aluminum suspension cross members that crack at welded corners. If the suspension loosens from the frame, crash risk increases. Trail King dealers will replace the cross members for free.
What should I do if my 2016-2018 Trail King Acs or Aacs is on this recall?
Check your VIN to confirm your specific trailer is included in recall 18V638. If it is, contact a Trail King dealer to schedule the cross-member replacement. Reference recall 18V638 or Trail King recall number TK201802 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Trail King dealers will replace the affected cross members free of charge. Trail King listed customer service at 1-800-843-3324 for owner questions about recall TK201802.
What is the safety risk?
The safety risk is that cracked aluminum cross members over the suspension loosen where they attach to the frame beam. If the suspension loosens from the frame, the trailer becomes harder to control and crash risk increases. Confirm your VIN, then arrange the free dealer repair.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/18V638000 |
|---|---|
| Trail King customer service | 1-800-843-3324 |
| NHTSA recall # | 18V638 |
| NHTSA recall # (full) | 18V638000 |
Source documents
-
Download Recall Investigation Document (PDF) (PDF) - Download Recall Report (PDF)
- Download Quarterly Report (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →