What You're Actually Buying
This is a matched set — the 663 cone (the part with the rollers) and the 653 cup (the race it rides in) sold together because that's how they're supposed to go in. You don't mix a used cup with a new cone and expect it to last; they wear in together.
3.25" ID puts this in the range you'll see on a lot of medium-duty truck front hubs and plenty of trailer axles — Dexter, some Ford medium-duty, various axle manufacturers all used this bore size at some point. It's a common enough spec that a lot of different brand-name axles ended up using the same bearing.
Bottom line: if the bearing coming out of your hub reads 663 or 653, this set is your replacement. If it reads something else, don't guess — the ID can look close and still be wrong by a few thousandths, which is enough to wreck a hub.
Why All These Numbers Cross
Timken made the 663/653 set originally and it's been around long enough that it's practically an industry standard now. SKF, National, and a handful of other bearing makers built to the same spec and cross-reference straight across — SET405 is just the boxed/kit designation covering the 663-653 pairing regardless of who stamped it.
BR663 and 4T-663 are the same cone under different part-numbering systems some suppliers use — BR usually denotes a bearing/race combo code, 4T is common on Japanese-spec cross tags. UVS0254 is a seal kit number that sometimes gets bundled with this bearing set because the seal ID has to match the same bore — don't assume it's interchangeable with the bearing itself, it's a different component.
The one thing that trips people up: axle manufacturers sometimes spec a slightly different cup width or seal diameter even when the cone ID matches. That's usually a seal issue, not a bearing issue, so if your seal doesn't seat right after swapping bearings, check the seal number separately before blaming the bearing set.
Ordering It From Us
We keep SET405 in stock at the Tacoma counter because it moves — pull the old bearing, read the number stamped on the cone (663) or cup (653), and match it here before you buy. If the numbers are worn off, bring the whole hub or wheel-off in and we'll match by ID and outer race dimension.
Local guys can grab it same-day off the shelf. If you're not local we ship nationwide, usually next-day depending on carrier cutoff — this is a compact enough part that shipping isn't the bottleneck, availability is, and we've got it.
Standard 6+ month warranty applies. Aftermarket bearing sets like this one are a direct replacement for the OE Timken spec, but wheel-end failures aren't something to gamble on — confirm your VIN or old part number before installing, especially on a steer axle.
663 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 663. 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 | 653, SET405, UVS0254, BR663, SKFSET405, 4T-663 |
Frequently asked questions
Does 663 fit my truck?
663 by itself is just the cone half — you need the 653 cup too, and this SET405 kit has both. Whether it fits your specific axle depends on your hub's bore ID and cup seat, so pull the old bearing and check the stamped number, or give us your VIN and we'll look up the axle spec.
Is this the same as the SKF SET405?
Yes — SKF builds to the same 663/653 spec and their SET405 designation covers the identical cone-and-cup pairing. Different label, same interchange, same bore ID. Either one should drop into the same hub.
Can I just replace the cone and reuse my old cup?
Not a good idea. Tapered roller bearings wear together — mixing a fresh cone with a worn cup usually means premature failure, sometimes fast. Buy the set, install both halves, and you won't be back in here in three months chasing a hot hub.
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.