For the 2011 Civic with the common 1.8-liter engine, the OEM oil filter is 15400-PLM-A01. If you have a different variant such as the Civic Si (2.0-liter), the filter number may differ; verify by engine code or VIN.
In 2011, Honda offered two primary engine options in many markets: a 1.8-liter i-VTEC (R18A1) for most trims and a 2.0-liter engine used in the performance-oriented Civic Si. Oil filter part numbers are tied to the specific engine family, so identifying the exact code on your car is essential. This article explains how to identify the correct filter and where to find reliable part numbers.
Common OEM oil filter number for the 1.8L Civic (R18A1)
Use this list to identify the typical part number used on US-spec 2011 Civics with the 1.8L engine.
- OEM oil filter (1.8L R18A1): 15400-PLM-A01
The number above corresponds to the standard Honda OEM filter used on most 2011 Civics with the 1.8L engine. Regional variations can occur, and some catalogs may show alternate but compatible filter numbers for the same engine family.
Other 2011 Civic variants and filter numbers
If your Civic is the Si or is registered in a market outside the US, the oil filter part number may differ from the 1.8L example above. Always confirm with official parts catalogs or your VIN. This section highlights the importance of engine code in selecting the correct filter.
- Civic Si (2.0L engine): The filter number is different from the 1.8L model; verify via engine code (K20Z3) or VIN. Check Honda's official parts lookup or your service manual for the exact number.
Because the 2.0L Si uses a different engine family, the filter expects a different cartridge. Rely on the engine code and official catalogs to avoid ordering the wrong part.
How to verify the correct filter for your car
These steps help you confirm the right oil filter when you aren’t sure of the engine variant or the regional part numbers.
- Check the owner’s manual or maintenance guide for the recommended oil filter specification.
- Inspect the current oil filter for a part number printed on the canister or label (if legible).
- Identify your engine code: R18A1 (1.8L) or K20Z3 (2.0L Si) under the hood or in the vehicle documentation.
- Use Honda’s official parts lookup (by VIN) or a reputable parts retailer to confirm the exact OEM number for your engine code and market.
When in doubt, using the official parts lookup by VIN is the most reliable way to ensure you order the correct filter for your 2011 Civic.
Summary
The 2011 Honda Civic’s oil filter number depends on the engine variant. The most common OEM part for the 1.8L Civics is 15400-PLM-A01. If you have the Civic Si or operate in a different market, check the engine code (R18A1 vs. K20Z3) and verify with official catalogs or a VIN-based lookup to ensure you purchase the correct filter. Always confirm before ordering to avoid fitment issues.