The oil filter sits on the engine block near the oil pan, but the exact spot depends on the engine and year. Most Frontiers use a side-mounted filter that can be either a traditional spin-on type or a cartridge inside a small housing.
Over the years, Nissan has used several engines in the Frontier—from four-cylinders to V6s—so the precise location shifts by model and generation. To locate it exactly, identify your engine code and year and consult the factory service manual or a reputable repair guide for your specific truck. The sections below cover the common locations you’re likely to encounter on popular Frontier powertrains.
Common locations by engine type
These guidelines reflect typical configurations found on many Frontier models. If you are unsure, consult the service manual or a trusted mechanic before attempting an oil change.
4.0L V6 (VQ40DE) engines
On most Frontier trucks with the 4.0-liter V6, the oil filter is mounted on the side of the engine block near the front, close to the oil pan. It is usually a spin-on canister that is vertically oriented and accessible from the passenger side of the vehicle. Depending on year and trim, you may need to remove a splash shield or other components to reach it from underneath.
How to locate it quickly:
- With the hood open, locate the large side of the engine block near the front, toward the passenger side.
- Look for a cylindrical metal canister with screw-on end caps or a round housing labeled "Oil Filter."
- If you can't see it from above, remove the front splash shield or wheel well liner for better access from below.
- If your model uses a cartridge inside a housing, you’ll see a circular access cap that you unscrew with a wrench to remove the filter cartridge.
In most cases, this is the standard location for the OEM oil filter on 4.0L Frontier V6s, but verify with your manual or dealer if your truck is a special edition or recent update.
2.5L four-cylinder (QR25DE) and other smaller engines
For Frontier variants powered by four-cylinder engines such as the QR25DE, the oil filter is still mounted on the engine block but may sit a little higher or lower and can be tucked behind components such as the alternator or AC lines. It is commonly a spin-on filter or a cartridge in a small housing on the side of the block, near the front of the engine, and often accessible from the wheel well or beneath the front bumper area with the skid plate removed.
Access tips for these engines:
- Check along the side of the engine block near the front and toward the passenger side.
- Inspect under the vehicle if you can't locate it from above; remove the front skid plate or splash shield as needed.
- Look for a cylindrical filter or a cap-housing with notches for a wrench.
Note: Nissan used multiple small-displacement engines in different years, so precise mounting can vary. When in doubt, refer to your vehicle's service manual or a reputable repair guide for your exact year and engine code.
What if you still can’t find it?
If you’re unable to locate the filter after checking above, try these steps:
- Look up your specific engine code (VIN-based) in the owner’s manual or via a dealer/service database to confirm the filter type and location.
- Consult a Haynes/Chilton repair guide or an online database like Alldata or Mitchell for exact diagrams for your year/model.
- Ask a mechanic to show you the exact spot on your specific vehicle to avoid mistaking other filters or plugs for the oil filter.
Safety note: Always ensure the vehicle is on a level surface, the engine is cool, and you use jack stands if you need to raise the vehicle. Have an oil catch pan ready and dispose of used oil properly.
Summary
In short, the Nissan Frontier’s oil filter location varies by engine and year. Most common configurations place a side-mounted filter on the engine block near the front and the oil pan, and some models may use a cartridge inside a small housing. If you’re unsure, consult your owner’s manual or a service guide specific to your year and engine code, and consider having a professional demonstrate the access point.