What You're Actually Buying
A bearing 'set' means you get the cone (the part with the rollers, rides on the spindle) and the cup (the outer race that presses into the hub) matched together. That's your 580/572 pair — Timken's numbering, and it's become the de facto industry standard everybody else cross-references to.
This 3.25" ID size shows up all over medium and heavy duty trucks — steer axles, some trailer hubs, certain drive axle applications depending on the OEM hub casting. It's not a one-truck-fits-all deal, so don't just go by 'it's a Class 8 truck' — measure the ID or pull the number off what's coming out.
How the Cross Numbers Line Up
580 and 572 are the actual bearing numbers stamped or cast into the parts — that's your ground truth. SET401 is just the industry designation for that matched pair, so if a catalog lists SET401 or lists 580/572 separately, you're looking at the same hardware.
TR0328, BR580, and A1228R1032 are other suppliers' part numbers that reference back to the same 580/572 spec — different box, same bearing. Where guys get burned is swapping in a similar-looking tapered bearing with a slightly different cone angle or roller count that happens to press into the same size cup. It'll go in, it won't last. Check the numbers stamped on the old bearing before you order, not just the ID measurement.
Ordering From Us
We keep SET401 in stock here in Tacoma, so if you're broke down local or just need it same day, it's on the shelf. Ship it anywhere in the country if you're not close — doesn't sit around waiting on backorder.
Comes with the 6+ month warranty like the rest of our wheel end stuff. If you're not 100% sure this is your bearing, give us the number off the old cone or cup, or your VIN, and we'll confirm before it ships. Cheaper to check than to reinstall twice.
580 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 580. 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 |
|---|---|
| OE/Cross-Ref | 572, SET401, TR0328, BR580, A1228R1032 |
Frequently asked questions
Does 580 fit my truck?
580 is the cone half of a 3.25" ID tapered bearing set — whether it fits your specific truck depends on the hub it's going into, not just the make/model. Pull the old bearing and check for 580 or 572 stamped on it, or give us your VIN and we'll match it up before you order.
Is BR580 the same as this SET401 bearing?
Yes — BR580 is another supplier's part number for the same 580 cone/572 cup pairing. Different label on the box, same bearing spec. Still worth confirming against the number on your old part before swapping it in.
Do I need to replace the seal when I do this bearing set?
Almost always, yeah. Pulling a hub apart to do the bearings and reusing a worn seal is asking for a leak and a comeback. We can get you the matching seal too — just tell us the hub or give us the old seal's number.
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.