In a 2009 Honda Accord, the oil filter is mounted low on the engine block and is accessed from underneath with the undercarriage shield removed. It uses a cartridge inside a small housing rather than a traditional spin-on filter.
The exact spot depends on whether your car has the 2.4-liter four-cylinder or the 3.5-liter V6, but in both cases you’ll be looking for a cylindrical housing on the side of the engine block near the oil pan. Access is typically from beneath the vehicle after removing the splash shield.
Where to look by engine type
Two common engine options in the 2009 Accord mean two similar layouts, both designed to be reached from below after removing the undercarriage shield. The filter is inside a housing and you replace the cartridge inside.
- 2.4 L four-cylinder (K-series): The oil filter sits on the passenger side of the engine block, inside a small metal cylindrical housing close to the oil pan. Access is easier from underneath with the front splash shield out of the way.
- 3.5 L V6 (J-series): The oil filter is near the front of the engine on the passenger side in a cartridge housing; again, it is typically accessed from underneath after removing the splash shield. The filter type is cartridge-based, not a spin-on.
In both configurations, you will see a cap or cover that seals the filter cartridge. Consult the service manual for the exact torque and cap size for your VIN.
Steps to locate and replace
To locate and replace the oil filter, follow these steps. The process is generally similar for both engines, with variations in access angle.
- Park safely, warm up engine, then lift the car and remove the front undercarriage shield.
- From underneath, locate the oil filter housing on the side/front of the engine block. You will see a cylindrical canister with a removable cap or cap bolts.
- Loosen and remove the cap to access the internal cartridge. Have a drain pan ready for any residual oil.
- Remove the old cartridge, install the new cartridge in the housing, replace the cap and tighten to spec.
- Replace the oil filter cap o-ring if applicable and reassemble any shields.
Dispose of old oil and cartridge properly. If you are unsure, have a mechanic perform the change to avoid leaks or misalignment.
Common cautionary notes
Oil leaks around the filter area typically indicate a worn seal or improper cap torque. Always follow the owner's manual or service manual for exact torque specs and fluid type.
Summary
On a 2009 Honda Accord, the oil filter is a cartridge in a housing mounted low on the engine block, accessible from underneath with the engine shield removed. The exact position depends on whether you have the 2.4L I4 or the 3.5L V6, but both share a side-mounted cartridge filter layout rather than a traditional spin-on filter. For precise diagrams and torque specs, refer to the service manual or a trusted repair guide.