How do I know what transmission is in my Expedition?
Your transmission affects maintenance, parts compatibility, and towing performance. The quickest way to know exactly which unit is in your Expedition is to pull the original build information from the VIN or window sticker, or to read the identification tag on the transmission itself. You can also make an educated guess by noting the number of gears and the era of the model, then confirm with official records or a technician.
Identify via VIN, build sheet, and official records
Using the vehicle’s official records is the most reliable way to determine the exact transmission originally installed in your Expedition.
- Find the VIN on the driver’s door jamb sticker, the vehicle’s registration, or your insurance documents, and use Ford’s official VIN decoder or your dealer to pull the drivetrain/transmission code tied to that VIN.
- Ask your Ford dealer for a build sheet or window sticker using the VIN. Look for a line that lists the transmission (for example, “Transmission: [code/name]”).
- If you have access to the original window sticker or factory build sheet, search for “transmission” or a similar code. This will specify the exact model installed at the factory.
- Note that some records may list a replacement transmission if the vehicle has had a prior major service; if so, the current unit may differ from the original factory equipment.
Relying on official records minimizes guesswork. If the VIN or build data isn’t readily accessible, you can still narrow down possibilities and later confirm with a technician or dealer.
Inspect the transmission itself for identifying codes
If you can safely access the transmission, look for a tag or stamped numbers that identify the model. This is often the fastest on-vehicle method to confirm what you have installed.
Where to look and how to read it
Most Ford automatic transmissions carry an identification tag on the side of the case or near the bellhousing. The tag or stamped markings will include a transmission model number (for example, a four-, six-, or ten-speed designation) and sometimes a date of manufacture or other codes. If the tag is faded or not visible, photograph the area and consult a trusted technician or a service bulletin for decoding guidance based on the casting numbers.
- Check the transmission housing on the passenger side or near the bellhousing for a metal tag with a model or part number.
- If you can’t find a tag, look for stamped numbers on the side of the case or the pan rail. A technician can map those numbers to the exact transmission model.
- If you’re unsure, capture clear photos of the area and bring them to a Ford dealership or independent shop for identification.
Physical identification is very helpful when VIN data isn’t accessible or when a transmission swap has occurred. Always ensure you’re safely supported and follow proper procedures when inspecting under the vehicle.
What to know about transmissions by era
Over Ford Expedition generations, transmissions evolved from older four-speed units to more modern multi-speed automatics. This era-based guide serves as a rough reference; exact fittings vary by engine, drivetrain, and market.
- Late 1990s to early 2000s: Most expeditions used traditional four-speed automatics.
- Mid-2000s to early-2010s: Some models moved to five- or six-speed units as engines and towing capabilities advanced.
- Late 2010s to present: Modern Expeditions commonly pair engines with six- or ten-speed automatic transmissions for improved efficiency and performance.
Knowing the era helps set expectations, but the VIN/build data or the on-vehicle identifier is the definitive source for your exact transmission model.
What to do if you still can’t identify it
If you can’t determine the transmission from records or a tag, consult a Ford dealership or an experienced transmission shop. Bring the VIN, proof of ownership, and any service history. A technician can verify the model by cross-referencing casting numbers, gear counts, and shift characteristics, which is especially useful after repairs or swaps.
Summary
In short: use the VIN/build sheet or window sticker for the original transmission code, inspect the transmission tag or case for a model number, and consider the model year era as a guide. When in doubt, a dealer or qualified shop can confirm the exact unit by reviewing records or decoding the identifiers on the transmission itself.
