FRAM Air Filter Dimensions: The Complete Guide to Sizing, Selection, and Vehicle Compatibility​

2026-01-02

When it comes to maintaining your vehicle’s engine health and performance, selecting the correct FRAM air filter dimensions is the most critical step. The right size ensures optimal airflow, protects engine components, and maximizes fuel efficiency, while an incorrect fit can lead to increased wear, reduced power, and potential damage. This comprehensive guide provides all the practical information you need to understand, measure, and choose the exact FRAM air filter dimensions for your car, truck, SUV, or motorcycle, based on official specifications, real-world application, and decades of automotive expertise. We cut through the confusion to deliver clear, actionable details that help you make informed decisions, avoid common pitfalls, and ensure a perfect fit for your engine’s air filtration system.

​Understanding FRAM Air Filters and Their Role in Engine Performance​

FRAM is a leading brand in automotive filtration, known for manufacturing high-quality air filters that trap dirt, dust, and debris before they enter the engine. An internal combustion engine requires a precise mixture of air and fuel to operate efficiently. The air filter’s primary function is to clean the incoming air of contaminants. Over time, filters become clogged and require replacement. The physical dimensions of the filter—its length, width, height, and shape—are not arbitrary. They are engineered specifically for each vehicle model to match the air intake system’s design, ensuring sufficient surface area for filtration without restricting airflow. Using a FRAM filter with the correct dimensions guarantees that the filter seals properly within the housing. A poor seal, caused by a filter that is too small or too large, allows unfiltered air to bypass the filter media, leading to abrasive particles entering the engine cylinders. This causes accelerated wear on piston rings, cylinder walls, and other vital parts. Therefore, knowing the exact FRAM air filter dimensions is foundational to effective vehicle maintenance.

​Why Precise Air Filter Dimensions Are Non-Negotiable​

The importance of precise dimensions extends beyond simple fitment. Modern engines are designed with tight tolerances, and the air intake system is calibrated for specific airflow characteristics. A filter that is even a few millimeters off in one dimension can compromise the entire system. For instance, a filter that is too thick may not allow the airbox cover to close and seal correctly, while a filter that is too thin can vibrate and create gaps. Similarly, incorrect length or width can misalign the filter within the housing, causing air to channel unevenly. This can lead to hotspots, reduced filtration efficiency, and even trigger check engine lights in vehicles with mass airflow sensors, as the sensor readings become inaccurate due to turbulent or unrestricted airflow. FRAM designs its filters to meet or exceed original equipment manufacturer (OEM) specifications, meaning a FRAM filter’s dimensions should match the factory filter exactly. This ensures that performance, emissions, and fuel economy remain as intended by the vehicle’s engineers. There is no universal “standard” size; dimensions vary widely between a compact car, a heavy-duty truck, and a performance vehicle. Assuming that a filter looks roughly the right size is a common error that leads to problems. Hence, relying on accurate dimension data is essential.

​Step-by-Step: How to Measure Your Current Air Filter for Accurate Dimensions​

If you are replacing an existing air filter, the most reliable method to determine the required FRAM air filter dimensions is to physically measure the old filter yourself. This is especially useful if you are unsure of the part number or if the vehicle has modifications. Here is a straightforward measuring procedure. First, remove the air filter from its housing in your vehicle. Refer to your owner’s manual for location and removal instructions; typically, it involves opening the airbox clamps or screws. Ensure the engine is cool and the vehicle is parked on a level surface. Once the filter is out, clean any loose debris from it. You will need a standard tape measure or ruler with both metric (millimeters) and imperial (inches) units. Measure the filter’s three key external dimensions: Length, Width, and Height (or Depth). For a common rectangular panel filter, measure the longest side for length, the shorter side for width, and the thickness of the filter frame for height. For a circular or cylindrical filter, measure the outer diameter, the inner diameter (the hole in the center), and the height or length of the cylinder. For oval or other shapes, note the major and minor axes. Record these measurements in both millimeters and inches, as different reference materials use different units. Be as precise as possible, rounding to the nearest millimeter. Also, note the filter’s shape and any specific features, such as a rubber gasket on one side or a flexible end. These measurements are the critical FRAM air filter dimensions you need to match. Compare your measurements to the specification charts provided later in this guide or on FRAM’s official website.

​Decoding FRAM Air Filter Part Numbers and Size Identification​

FRAM air filters are sold under specific part numbers that correlate to exact dimensions and vehicle applications. Understanding how these part numbers relate to size can simplify your search. FRAM uses product codes like CA, Extra Guard, Tough Guard, and others, followed by alphanumeric part numbers (e.g., CA9482, TG3950). These part numbers are cross-referenced to detailed databases that include the filter’s physical dimensions. While the part number itself may not openly display the size, each number corresponds to a unique set of dimensions. The most direct way to find your filter is to use FRAM’s online vehicle lookup tool by entering your vehicle’s year, make, model, and engine size. This will yield the correct FRAM part number. However, for the purpose of understanding dimensions, we can generalize that filters with similar part number suffixes often share similar size categories, but this is not a reliable selection method alone. Always verify dimensions. For example, a FRAM CA9482 is a common rectangular panel filter with dimensions of approximately 14.25 inches in length, 9.5 inches in width, and 2.25 inches in height (362 mm x 241 mm x 57 mm). FRAM provides these dimension details on product packaging and in online catalogs. When purchasing, always check the product description for the listed dimensions to confirm they match your measurements or vehicle requirements. Do not rely solely on the part number from a different brand; always use the FRAM-specific number, as dimensions can vary slightly between manufacturers even for the same application.

​Comprehensive Reference: Common FRAM Air Filter Dimensions and Shapes​

To serve as a practical reference, here is an extensive list of common FRAM air filter dimensions for popular filter types. These dimensions are based on FRAM’s standard product lines and are intended as a guide. Always verify with your specific part number, as there can be variations. Dimensions are given in both inches and millimeters, formatted as Length x Width x Height (L x W x H) for panel filters, and Outer Diameter x Inner Diameter x Height (OD x ID x H) for cylindrical filters.

Rectangular Panel Air Filters:

  • FRAM CA9482: 14.25 x 9.5 x 2.25 inches (362 x 241 x 57 mm)
  • FRAM CA8233: 12.5 x 9.5 x 2.5 inches (318 x 241 x 64 mm)
  • FRAM CA8721: 13 x 7.75 x 2.5 inches (330 x 197 x 64 mm)
  • FRAM CA3558: 9.75 x 8.75 x 2 inches (248 x 222 x 51 mm)
  • FRAM CA9325: 10 x 8.75 x 2.5 inches (254 x 222 x 64 mm)
  • FRAM CA344: 14.5 x 11.5 x 3 inches (368 x 292 x 76 mm)
  • FRAM CA3633: 12 x 11.5 x 2.5 inches (305 x 292 x 64 mm)
  • FRAM CA348: 14.5 x 9.5 x 3 inches (368 x 241 x 76 mm)
  • FRAM CA347: 13.5 x 9.5 x 3 inches (343 x 241 x 76 mm)
  • FRAM CA346: 12.5 x 9.5 x 3 inches (318 x 241 x 76 mm)

Round/Cylindrical Air Filters:

  • FRAM CA3268: Outer Diameter 6.5 inches, Inner Diameter 4.5 inches, Height 5.5 inches (165 x 114 x 140 mm)
  • FRAM CA3172: Outer Diameter 6.25 inches, Inner Diameter 4 inches, Height 8 inches (159 x 102 x 203 mm)
  • FRAM CA3160: Outer Diameter 5.5 inches, Inner Diameter 3.5 inches, Height 7 inches (140 x 89 x 178 mm)
  • FRAM CA3315: Outer Diameter 5.5 inches, Inner Diameter 3 inches, Height 4.5 inches (140 x 76 x 114 mm)
  • FRAM CA357: Outer Diameter 7 inches, Inner Diameter 5 inches, Height 6 inches (178 x 127 x 152 mm)

Oval and Other Shape Air Filters:

  • FRAM CA3482: Dimensions approximately 13.5 x 6.5 x 3.5 inches (343 x 165 x 89 mm), oval shape
  • FRAM CA3475: Dimensions approximately 12 x 6.5 x 3 inches (305 x 165 x 76 mm), tapered panel
  • FRAM CA3497: Dimensions approximately 14 x 10 x 2.5 inches (356 x 254 x 64 mm), irregular rectangle

This list is not exhaustive but covers many frequent applications. Note that heights can vary even for similar length and width, so all three dimensions are crucial. Also, some filters have flexible ends or offset gaskets that affect fit; consult product images or descriptions for such details.

​Vehicle-Specific Guide: Matching FRAM Air Filter Dimensions to Your Car, Truck, or SUV​

The most accurate way to find the correct FRAM air filter dimensions is by vehicle application. Below is a categorized list of popular vehicle types and examples of the corresponding FRAM part numbers with their typical dimensions. This demonstrates how dimensions vary across makes and models.

Compact and Sedan Cars:

  • Honda Civic (2012-2015): Often uses FRAM CA9482 (14.25x9.5x2.25 inches).
  • Toyota Camry (2010-2014): Often uses FRAM CA8233 (12.5x9.5x2.5 inches).
  • Ford Focus (2012-2018): Often uses FRAM CA8721 (13x7.75x2.5 inches).
  • Chevrolet Malibu (2013-2015): Often uses FRAM CA3558 (9.75x8.75x2 inches).

SUVs and Crossovers:

  • Ford Explorer (2011-2015): Often uses FRAM CA9325 (10x8.75x2.5 inches).
  • Jeep Grand Cherokee (2011-2013): Often uses FRAM CA344 (14.5x11.5x3 inches).
  • Honda CR-V (2012-2016): Often uses FRAM CA3633 (12x11.5x2.5 inches).
  • Toyota RAV4 (2013-2018): Often uses FRAM CA9482 (14.25x9.5x2.25 inches).

Pickup Trucks:

  • Ford F-150 (2009-2014, 5.0L V8): Often uses FRAM CA348 (14.5x9.5x3 inches).
  • Chevrolet Silverado 1500 (2007-2013, 4.8L V8): Often uses FRAM CA347 (13.5x9.5x3 inches).
  • Ram 1500 (2009-2012, 5.7L V8): Often uses FRAM CA346 (12.5x9.5x3 inches).
  • Toyota Tacoma (2005-2015): Often uses FRAM CA3482 (13.5x6.5x3.5 inches).

Performance and Luxury Vehicles:

  • BMW 3 Series (2006-2011): Often uses FRAM CA3268 (6.5x4.5x5.5 inches, cylindrical).
  • Mustang GT (2005-2010): Often uses FRAM CA3172 (6.25x4x8 inches, cylindrical).

Motorcycles and Small Engines: (Note: FRAM also makes filters for small engines)

  • For many lawn mowers and ATVs: Filters like FRAM CA3315 (5.5x3x4.5 inches) are common.

Always double-check with your vehicle’s year, make, model, and engine displacement, as changes occur even within model years. Use the FRAM online lookup tool with your VIN for absolute precision.

​How to Use FRAM’s Resources to Find Your Exact Filter Dimensions​

FRAM provides several tools to assist consumers. The primary resource is the FRAM online catalog accessible via their website. You can enter your vehicle details directly. The results will show the recommended FRAM part number along with product specifications that include the dimensions. Alternatively, you can use the part number lookup feature if you already have a number from a previous purchase or a cross-reference. Another method is to consult the vehicle’s owner manual; it often lists the air filter part number or specifications. You can then cross-reference that OEM number to a FRAM equivalent using a cross-reference chart available at auto parts stores or online. Physical auto parts stores also have printed catalogs or in-store computers that can provide the FRAM air filter dimensions based on your vehicle. When using any tool, ensure you select the correct engine option, as a single model year may have multiple engine choices requiring different filter sizes. For older or classic vehicles, you may need to rely on physical measurement of the existing filter or consult specialty automotive forums with verified data.

​Installation Instructions: Ensuring a Proper Fit with Correct Dimensions​

Once you have obtained the FRAM air filter with the correct dimensions, proper installation is key. Here is a generic guide. First, ensure the vehicle engine is off and cool. Locate the air filter housing; it is usually a black plastic box near the engine with clips or screws. Open the housing by releasing the clips or removing the screws. Carefully remove the old filter, noting its orientation. Before inserting the new FRAM filter, quickly inspect it to confirm its dimensions match the old one. Also, inspect the air filter housing for any debris, dirt, or damage; clean it with a damp cloth if necessary. Insert the new filter exactly as the old one was positioned, aligning any rubber gaskets or seals properly. The filter should seat fully and evenly without forcing. Close the housing cover and secure all clips or screws firmly. Do not overtighten, as this can crack plastic housing. Start the engine and listen for any unusual sounds like hissing, which might indicate a poor seal. A quick visual check to ensure the housing is completely closed is advisable. This process, combined with correct dimensions, guarantees a secure fit.

​Maintenance Schedule: When to Replace Your FRAM Air Filter​

Knowing the correct FRAM air filter dimensions is only part of the equation; timely replacement is equally important. A clogged filter, even if perfectly sized, restricts airflow. Most vehicle manufacturers recommend replacing the air filter every 12,000 to 15,000 miles under normal driving conditions. However, in severe conditions—such as frequent driving on dusty roads, in heavy traffic, or in areas with high pollution—replacement may be needed as often as every 6,000 miles. A visual inspection can also guide you: hold the filter up to a bright light. If light does not pass through most of the filter media, it is time for a replacement. Regular replacement with the correct size maintains engine performance, fuel economy, and emissions. Keeping a record of the FRAM part number and dimensions for your vehicle simplifies repurchasing.

​Frequently Asked Questions About FRAM Air Filter Dimensions​

Can I use a FRAM air filter that is slightly different in dimensions if it seems to fit?
No. Even small differences can cause air leaks or restriction. Always use the exact dimensions specified for your vehicle. Do not force a filter that is not the right size.

Are FRAM air filter dimensions the same as OEM dimensions?
Yes, FRAM designs filters to match OEM specifications precisely. The dimensions should be identical to the original equipment filter, ensuring direct fitment.

How do I find FRAM air filter dimensions if I lost my old filter?
Use the FRAM online vehicle lookup tool with your vehicle’s year, make, model, and engine details. It will provide the part number and dimensions. You can also consult your owner’s manual or a dealership parts department.

Do FRAM air filter dimensions include the gasket?
The listed dimensions typically refer to the overall external measurements of the filter frame, which includes any integrated rubber gasket. Always check the product description for clarification.

Can I clean and reuse a FRAM air filter?
FRAM disposable air filters are not designed to be cleaned and reused. They are made of paper or synthetic media that can be damaged by cleaning. Use a new filter for assured performance. FRAM does offer some washable performance filters, but these are specific products with their own size guidelines.

Do dimensions change if I buy a FRAM Extra Guard vs. Tough Guard filter for the same vehicle?
No. For a given part number application, the core dimensions (length, width, height) remain consistent across different FRAM lines (like Extra Guard, Tough Guard). The difference lies in the filter media technology and lifespan, not the physical size.

Where are the dimensions listed on FRAM packaging?
Dimensions are usually printed on the box side or end flap, listed in both inches and millimeters. They are also in online product descriptions.

​Conclusion: The Importance of Precision for Vehicle Health​

Selecting the correct FRAM air filter dimensions is a straightforward yet vital aspect of vehicle maintenance. It ensures that your engine receives clean, unobstructed airflow, which directly impacts power, efficiency, and longevity. By measuring your old filter accurately, using FRAM’s vehicle-specific resources, and referring to detailed dimension charts like those provided here, you can confidently choose the right filter. Always prioritize exact fit over approximations, and adhere to recommended replacement intervals. This practice, grounded in expertise and practical knowledge, safeguards your engine and optimizes your driving experience. Remember, in automotive filtration, precision in dimensions translates directly to protection and performance.

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