What This Assembly Is and What It Fits
This is a complete left-hand headlight housing, not just a bulb kit - projector low/high beam, LED halo ring for daytime running light, chrome interior trim. It bolts into the factory headlight bucket on the 388, 389, 367, and 567 hood-mount trucks.
Peterbilt ran a few different lighting configurations across model years and trim packages on these trucks - some got halogen from the factory, some got LED from Peterbilt direct, some got retrofitted by fleets. So even though your truck says '389' on the badge, that doesn't automatically mean this exact assembly bolts in without checking your VIN.
Bottom line - pull the old unit if you can and check for a stamped part number on the back housing or the connector. That's your fastest way to confirm before you order.
Why These Numbers Cross and What to Watch
PET-014A-L, PET-014A-LLH, PET-014A-LH, TX-TU-1069, P54-6101-110, and 37670 all point back to the same left-side housing design - different suppliers and catalogs just tag their own part numbers on what's mechanically the same assembly. That's normal in this industry, aftermarket lighting gets relabeled by whoever's distributing it that quarter.
What actually matters on a headlight swap - connector pinout and plug style, mounting bolt pattern on the bucket, and whether your truck's wiring harness supports the LED module without an adapter. Halo DRL wiring in particular can differ between early and late production runs even within the same model year.
If your old housing has a number stamped on it, match that first. If it's worn off or you're working off a parts book, cross-check against your chassis VIN - Peterbilt's build sheet will tell you the factory lighting spec better than guessing off model year alone.
Ordering From PartStop
We're in Tacoma and keep this one on the shelf, so if you're local you can grab it same day and be back on the road. Ship nationwide otherwise, usually out the door same day if you order before mid-afternoon.
Comes with our standard 6+ month warranty. If it doesn't match up to your old housing or the connector's wrong, call the counter before you start cutting wires - we'd rather sort it on the phone than have you stuck with a modified harness and no way to return it.
Not asking you to trust a label on a webpage - bring us the old part number or your VIN and we'll confirm before it ships, not after.
PET-014A-L Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to PET-014A-L. 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 | PET-014A-LLH, PET-014A-LH, TX-TU-1069, P54-6101-110, P54-6101-110R, 37670, 37671, 37672, 37673 |
Frequently asked questions
Does P54-6101-110 fit my 2018 Peterbilt 389?
Likely, but Peterbilt changed lighting specs mid-run on the 389, so 'likely' isn't good enough to just order blind. Give us your VIN or the number off your current housing and we'll confirm it's the same connector and mounting before you buy.
Is this the same as the TX-TU-1069 unit?
Same physical assembly, different catalog number - TX-TU-1069 is just another supplier's tag on the same left-side LED projector housing. Mechanically and electrically it's the identical part, confirm against your old unit's stamp to be sure.
Does this come with the wiring harness or do I need to splice into my existing one?
It uses the factory-style connector so it should plug into your existing harness without splicing, assuming your truck's the LED-compatible version. If your truck's still running the older halogen harness, you'll need an adapter - check your connector pin count against the old housing first.
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.