What size is the sump plug on a Hilux?
There isn't a single universal sump plug size for every Hilux; it depends on the year and engine. The most common drain plug thread you’ll encounter is M14 x 1.5, with a 14mm hex head on many newer Hilux engines. Some older models use M12 x 1.25 or M12 x 1.5.
Why the size varies across Hilux generations
The Toyota Hilux has evolved across generations, swapping engines and oil-pan designs. While a modern 2.8-liter diesel (GD-FTV/1GD) and many 2.4-liter variants commonly use M14 x 1.5, older petrol and diesel options may use different thread sizes. The plug size is tied to engine family rather than the body style alone, and may also differ by market and production year.
Common sizes by era
Below are the sizes you’re most likely to encounter, depending on the Hilux engine you have. Always verify with the exact engine code and manual.
- M14 x 1.5 thread with a 14mm hex head (prevalent on many modern Hilux petrol and diesel engines, including later 2.4/2.8/2.7 variants).
- M12 x 1.25 or M12 x 1.5 thread with a 12mm hex head (seen on some older Hilux engines).
- Occasional variations such as special plugs with integrated washers/magnets or nonstandard head sizes; these should be matched to the OEM part for your engine.
Conclusion for this section: If you're replacing the sump plug, start with the M14 x 1.5 size as your default for newer Hilux engines, but verify against your engine code and service manual to avoid cross-threading or leaks.
How to confirm your sump plug size
To ensure you get the correct plug, use the following checks. This guidance helps you avoid damage from using the wrong thread or head size.
- Check the engine model code and year in your Hilux’s service records or user manual, since size varies by engine family (petrol vs diesel) and generation.
- Consult the official Toyota Hilux service manual or a current parts diagram for your exact engine code and market; these sources specify the correct drain plug thread and head size.
- Measure the thread diameter and pitch on the existing plug with calipers or a thread pitch gauge if you have the old plug removed.
- Confirm the hex head size with a socket wrench (common sizes are 14mm or 17mm) and ensure the replacement matches the tool you have.
Concluding note: If in doubt, replace with OEM hardware or have a qualified technician confirm the proper plug size for your Hilux’s engine code and year to prevent cross-threading or leaks.
Summary
In short, the sump plug size on a Toyota Hilux is not universal. The most common thread is M14 x 1.5 with a 14mm head on many modern Hilux engines, while some older variants use M12 sizes. Always verify using your engine code, the official service manual, or a reliable parts diagram. When in doubt, consult a professional to ensure you use the correct plug and seal to maintain oil integrity.
What size is the sump plug on a 2013 Toyota Hilux?
Tridon Sump Plug - M12 X 1.25mm.
What size is the Toyota sump plug washer?
12mm ID X 21mm OD X 1.8mm.
What size socket is the oil drain plug?
Place a 3/8-inch (0.9 centimeters) socket in the socket wrench, fit it over the drain plug's nut and turn it counterclockwise. The oil drain plug should open easily, draining the used oil from the engine. Make sure to place a bucket and some newspaper under the car's engine to catch all the draining oil.
What size is the oil drain plug on a Toyota Hilux?
M12x1.25
Size: M12x1. 25. Magnetic Sump Plugs. Custom Air Intake Pipe Kits.
