What This Beam Actually Fits
This is a heavy-duty equalizer beam built for the Hutchens suspension system, and Hutchens has been putting this style of walking beam on trailers and straight trucks since the late 80s clear up through current production. That's a long run, and Hutchens made small tweaks over the decades without always changing the visible part number on the casting.
The 338-886 shows up under a few different stampings depending on when and where it was built - S338-886, E-7532, 16158-01 - but they're all the same physical beam, same pivot centers, same arm geometry. Manufacturers re-tag their own parts for distribution reasons more often than people think.
If you're replacing a cracked or sagging beam, pull the old one and look for any of these numbers cast or stamped into the metal near the pivot ends. That's your fastest confirmation this is the right piece before you order.
Why the Cross Numbers Line Up
EQ53-35158 and EQ5335158NH are the aftermarket house numbers you'll see from parts distributors - basically the same beam repackaged under a different catalog scheme. QH 203 is another aftermarket cross that shows up on some fleet parts lists. None of these are guesswork crosses; they trace back to the same Hutchens beam geometry.
Where you need to slow down is arm length and bushing bore size. Hutchens ran a few variations over the years for different axle spacings and load ratings, and a beam that looks identical can be off by a half inch on center-to-center, which will bind your ride or throw your alignment off. Bore diameter for the bushings matters too - if it doesn't match your trailing arm bushings, it's not going in clean.
The safest way to confirm is measure your old beam pivot-to-pivot, check the bushing bore, and match that against the number stamped on the old part. Don't just go by year of the trailer or tractor - Hutchens suspensions get swapped onto different trailers over their working life and the beam doesn't always match the build date.
Ordering From PartStop
We keep 338-886 in stock here in Tacoma, so if you're a local fleet or owner-op and need it same day, come by or call ahead and we'll have it at the counter. We ship nationwide too if you're not local - most orders go out same day if you call before early afternoon.
This is a heavy-duty piece and it carries our 6+ month warranty against defects, but no counterman worth his coffee is going to tell you it's a guaranteed fit sight unseen. Suspension parts vary too much across trailer builds for that kind of promise.
Bring in your old beam or just read us the numbers off it over the phone. That's the fastest way we can get you the right part the first time instead of you boxing something up for a return.
338-886 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 338-886. Use them to identify the part — then confirm the exact fit by VIN or the number stamped on your old unit before you order. An interchange is a starting point, not a fitment guarantee.
| Brand / Line | Cross-Reference Numbers |
|---|---|
| Cross-Reference | 16158-01, S338-886, E-7532, EQ53-35158, EQ5335158NH, QH 203 |
Frequently asked questions
Does 338-886 fit my 2014 dry van trailer?
Probably, if it's running a Hutchens suspension, but the beam varies by arm length and bushing bore across different builds. Pull your old beam, check for any of the cross numbers stamped on it, and measure pivot-to-pivot before you order. Give us those numbers or measurements and we can confirm.
Is this the same as the EQ5335158NH beam?
Yes, EQ5335158NH is one of the aftermarket house numbers that crosses to this same Hutchens beam. Same geometry, same pivot spacing. Still worth checking your old part's bushing bore against it since Hutchens has run slight variations over the years.
What's actually failing on these beams that makes people replace them?
Usually it's cracking at the pivot ends from fatigue, or the bushing bore wallowing out from wear, which lets the beam walk and throws your ride height and alignment off. If you're seeing uneven tire wear or a knock over bumps, it's worth pulling the beam and inspecting it closely.
Not sure it fits? We check before you pay.
Run your VIN and we’ll match parts to your exact truck, or call the counter — a person who knows trucks verifies fitment by OEM number before the order ships. No wrong-box returns.
More cross-reference guides
Need the part, not just the reading?
Every part below is a Premium Quality aftermarket Direct Replacement with published OEM cross-reference numbers, a 6+ month warranty and same-business-day shipping from Tacoma, WA. Not sure it fits? Run your VIN — or call and a person who knows trucks will verify fitment before you pay.