How to Find the Correct Oil, Air, Fuel, or Cabin Air Filter for Your Vehicle or Equipment
Choosing the correct oil filter, air filter, fuel filter, hydraulic filter, or cabin air filter is essential for protecting your engine and ensuring your vehicle or equipment performs as designed. Installing the wrong filter can lead to poor performance, leaks, premature wear, or even engine damage.
At FleetFilter, we recommend using the following methods—in order—to identify the correct replacement filter.
1. Check the Part Number on the Old Filter (Best Method)
The easiest and most accurate way to find the correct replacement filter is to remove the existing filter and read the part number printed on it.
Most manufacturers print the filter number directly on the housing. Once you have that number, you can search for it on FleetFilter or contact us for assistance in finding the equivalent WIX Filters replacement.
This method eliminates guesswork because it identifies the exact filter that is currently installed on the vehicle or machine.
Tip: Before removing the filter, wipe away any dirt or oil so the printed part number is easier to read.
2. Use the Year, Make, and Model Lookup
If the old filter is unavailable or the part number is unreadable, the next best option is to identify the vehicle by its year, make, model, and engine.
Many passenger vehicles and light trucks can be identified this way. Visit the official WIX Filters application lookup to search by vehicle information. Once you’ve identified the correct WIX part number, you can easily locate that filter on FleetFilter.
Be sure to verify the engine size and production year, as manufacturers sometimes use different filters on the same model.
3. Contact the Equipment or Vehicle Manufacturer for the OEM Part Number
Heavy equipment, industrial machinery, agricultural equipment, generators, compressors, and specialty vehicles often have multiple filter options depending on the engine, hydraulic system, or production configuration.
If you’re unsure which filter your equipment uses, contact the manufacturer or dealership and request the OEM (Original Equipment Manufacturer) part number.
Once you have the OEM number, FleetFilter can often cross-reference the OEM part number to the correct WIX filter, making it easy to order a high-quality replacement.
Having the OEM part number greatly improves accuracy and helps eliminate ordering errors.
4. Use the WIX Filter Size Lookup
Sometimes the original filter has no visible part number, the manufacturer cannot identify it, or the equipment has been modified.
In these situations, the WIX Filter Size Lookup can help narrow the possibilities.
This tool allows you to search filters by their physical dimensions, including:
- Outside diameter
- Overall height
- Thread size
- Gasket inside diameter
- Gasket outside diameter
By matching the physical specifications of your existing filter, you can often identify the correct replacement even when no part number is available.
While a size lookup is extremely helpful, it should generally be considered a last step because multiple filters may share similar dimensions while having different internal characteristics.
Need Help Finding the Right Filter?
If you’ve tried these methods and still aren’t sure which filter you need, we’re here to help.
Provide us with as much information as possible, including:
- Existing filter part number (if available)
- Vehicle or equipment year, make, and model
- Engine model or serial number
- OEM part number
- Photos of the filter and mounting surface
The more information you can provide, the faster we can identify the correct replacement.
At FleetFilter, our goal is to help you find the right filter the first time. Whether you’re replacing an oil filter, fuel filter, air filter, hydraulic filter, coolant filter, transmission filter, or cabin air filter, using the methods above will help ensure you receive the correct part and keep your equipment running at peak performance.