Mac Trailers Dump Trailer, model years 2017 to 2020. Filed by Mac Trailer Mfg., Inc. and reported to NHTSA on 1 July 2021. 53 vehicles potentially affected.
What the notice says Mac Trailer Mfg., Inc. (Mac Trailer) is recalling certain 2017-2020 Dump trailers equipped with Ingersoll Smart-Steer self steer axles. The steering arm may detach from the steering knuckle during certain low-speed, high-side loading maneuvers.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
What owners ask about this recall
- Which vehicles does recall 21V501 cover?
- Mac Trailers Dump Trailer, model years 2017-2020.
- What is wrong with them?
- Mac Trailer Mfg., Inc. (Mac Trailer) is recalling certain 2017-2020 Dump trailers equipped with Ingersoll Smart-Steer self steer axles. The steering arm may detach from the steering knuckle during certain low-speed, high-side loading maneuvers.
- What can happen if it is not put right?
- A detached steering arm may cause a loss of steering control. In addition, attachment hardware may fall and become a road hazard. Both of these scenarios can increase the risk of a crash.
- Is there a fix yet?
- Yes, and it is free. Dealers will inspect the steering arm and apply welds, free of charge. Owner notifications were mailed on September 7, 2021. Owners may contact Mac Trailer customer service at 1-330-823-9900.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “A detached steering arm may cause a loss of steering control. In addition, attachment hardware may fall and become a road hazard. Both of these scenarios can increase the risk of a crash.”
affected
in the notice
caught
| Campaign | 21V501 |
|---|---|
| Filed by | Mac Trailer MFG., Inc. |
| System at fault | Steering |
| Reported to NHTSA | 1 July 2021 |
| Model years | 2017-2020 |
| Vehicles named | MAC TRAILERS DUMP TRAILER |
What the notice says today
The consequence
A detached steering arm may cause a loss of steering control. In addition, attachment hardware may fall and become a road hazard. Both of these scenarios can increase the risk of a crash.
The remedy
Dealers will inspect the steering arm and apply welds, free of charge. Owner notifications were mailed on September 7, 2021. Owners may contact Mac Trailer customer service at 1-330-823-9900.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 745 notices in the record whose component field names steering. Across that group the median wait before owners were written to was 39 days.
Last checked . No change has been recorded in the wording.
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 21V501, wording as read on 16 September 2026. https://carsmultiverse.com/recall/21v501/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 21V501 on 23 August 2026, they were:
- Defect summary
619da944 - Consequence
ef066fb3 - Remedy
c11883e3
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 21V501 · how the whole register is watched
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