Ford Ranger OEM Part Numbers: How to Read, Find & Cross-Reference the Right Part

Most wrong-part returns don’t happen because someone bought a bad part. They happen because someone bought the right kind of part for the wrong truck — a driver-side lamp when they needed passenger side, a blind-spot housing for a truck that never had blind-spot, a classic-Ranger piece for a modern one. The part number is the thing that prevents all of that, and almost nobody knows how to read one.

This is the reference for that. How a Ford number is put together, how to get the exact one for your Ranger, and the specific fitment traps that catch Ranger owners. It’s the guide I’d hand somebody before they order anything more complicated than an oil filter.

How a Ford part number is put together

Ford service part numbers come in three blocks, normally written with dashes:

KB3Z — 13405 — G

prefix — basic part number — suffix

• The middle block is the component. It identifies what the part is. On the Ranger, rear lamp assemblies carry 13405 — that number shows up on every Ranger tail lamp we’ve catalogued.
• The prefix identifies the application. It’s the block that changes between vehicle lines and model years. Two numbers with the same middle block and different prefixes are the same type of part for different trucks — which is exactly the trap. Same basic number does not mean it fits.
• The suffix is the variant. That trailing letter is what separates driver side from passenger side, halogen from LED, one trim’s version from another’s. It’s one character, and it’s the difference between a part that bolts on and a part that goes back in the box.

One practical wrinkle worth knowing: sellers routinely drop the dashes. The same part gets listed as KB3Z-13405-G in a dealer catalog and KB3Z13405G in a marketplace title. If a search comes up empty, try it the other way — you’ll get a different set of results.

Worked example: the 2019–2023 Ranger rear lamp family

The tail lamp is the cleanest illustration on the whole truck, because two versions of the “same” part sit side by side in our catalogue:

Same prefix. Same basic number. One letter apart — and completely different parts. One is the base-trim halogen housing, one is the LED unit used on blind-spot-equipped trucks. Both, note carefully, are driver side only; the passenger-side units are different numbers again.

That’s the whole lesson in one row of a table. Read the suffix, read the side, read the options.

Four ways to get the exact number for your truck

In order of how much I’d trust them:

1. The part you’re taking off. Ford lamp housings, modules, and a lot of trim typically carry the number molded into the plastic or printed on a label — often on the back of the housing where you can’t see it until the part is out. A number that physically came off your truck is the best number you will ever get, because it accounts for every option and mid-year change the catalogues argue about.
2. A Ford dealer parts counter, with your VIN. This is the authoritative lookup — the VIN encodes the build, so the counter sees exactly what left the factory on your truck. Asking is free even if you buy the part elsewhere. Call with the VIN in hand.
3. An OEM parts catalogue that accepts a VIN, not just year/make/model. Year/make/model lookups are where the wrong-trim, wrong-option mistakes creep in; a VIN lookup doesn’t have that ambiguity.
4. Search the number and read the fitment. Once you have a candidate number, search it and check the fitment the listing states — year range, trim, cab, and options — against your truck. Treat this as confirmation of a number you already have, not as a way to discover one.

If you’re not certain which Ranger you’re even working on, start with the Ranger generations & fitment guide — the 2011/2019 gap and the 2024 next-gen change are the two lines that break almost all interchange.

The five traps that cause wrong-part returns

1. Side. Left/driver and right/passenger are separate part numbers and separate purchases. Lamp assemblies, mirrors, control arms, door hardware — assume one side unless the listing explicitly says pair.

2. Blind spot (BLIS). On 2019–2023 Rangers this is the big one. The blind-spot-equipped rear lamp is a different part from the base assembly, and — this catches people constantly — the sensing module is not included with the lamp. Bolting a blind-spot housing onto a truck that never had the system does not add the feature. If you’re replacing a lamp on a BLIS truck, you’re transferring or sourcing the module separately.

3. Trim and lamp type. XL, XLT, Lariat, and Raptor trucks get different hardware in a lot of places, and halogen versus LED is a genuine part change, not a bulb swap. See the Ranger lighting upgrades guide for how the lighting hardware differs across the range.

4. Generation. The classic 1983–2011 Ranger, the 2019–2023 P375, and the 2024–2026 next-gen truck are three different vehicles that happen to share a name. Almost nothing crosses those gaps. A part number that “looks close” from the wrong generation is not close.

5. “Compatible with” is not “OEM.” Aftermarket direct-fit parts often quote the OEM number in the title so you can find them — that’s useful and legitimate, but it means the number in the title is telling you what it replaces, not that it’s a genuine Ford part. Both are fine to buy; just know which one you’re buying.

Buying by part number

Once you’ve got the number, there are two lanes and they’re good at different things.

New direct-fit replacements are the fast lane. Both 2019–2023 rear lamp assemblies from the table are stocked and shipping now:

• The LED tail light assembly with blind spot — driver side, KB3Z13405G, module not included.
• The halogen XL tail light assembly — driver side, KB3Z13405F, without blind spot, bulbs included.

Both are in the Recommended Parts grid below; browse the rest in the lighting category.

Genuine OEM, dealer overstock, and used take-offs are eBay Motors’ home turf, and searching by number is exactly what it’s good at — sellers put the number straight in the title. It’s usually the only realistic way to find a discontinued piece, a passenger-side unit nobody stocks new, or anything at all for a classic Ranger. Use the buttons below, and try the number both with and without dashes.

Applying the same method to the rest of the truck

Lighting is the clearest example, but the method is identical everywhere:

• Suspension — sides, drivetrain, and front-end design all split the numbers. See the Ranger suspension parts guide.
• Brakes — pad and rotor numbers split by trim, brake package, and axle. See the Ranger brake upgrades guide.
• Maintenance consumables — filters and plugs split by engine, not by year. See the maintenance schedule & parts checklist.
• Classic-truck body hardware — the parts most likely to be discontinued, and where a number is worth the most. See the classic Ranger wear parts guide.

Get the number off the truck, confirm it against the VIN, read the suffix, and check the side. Four steps, and you stop buying parts twice.