What size is the thread on the ej25 oil filter?
The thread size on the EJ25 oil filter is 3/4-16 UNF. This means the filter has a 3/4 inch diameter thread with 16 threads per inch, using the Unified Fine (UNF) thread standard.
Detailed Explanation
The EJ25 engine is a 2.5-liter boxer four-cylinder engine used in various Subaru vehicles. The oil filter on this engine has a specific thread size that must be matched when replacing the filter.
The 3/4-16 UNF thread size is a common specification for many automotive oil filters. The 3/4 inch diameter allows the filter to securely attach to the engine's oil filter housing, while the 16 threads per inch provide a tight, leak-free seal.
Using the correct oil filter size is important to ensure a proper fit and prevent any leaks or issues with the engine's lubrication system. Attempting to use an oil filter with the wrong thread size could result in a poor seal, oil leaks, and potentially even engine damage.
Tips for Replacing the EJ25 Oil Filter
- Always refer to your vehicle's owner's manual or service information to confirm the correct oil filter part number and thread size.
- When removing the old filter, use an oil filter wrench to avoid damaging the filter housing.
- Apply a thin coat of fresh engine oil to the gasket of the new filter before installing it.
- Tighten the new filter by hand until snug, then turn it an additional 3/4 to 1 full turn to ensure a proper seal.
- Check for any leaks after starting the engine and let the engine run for a few minutes before rechecking the filter.
Following these tips will help ensure the oil filter is properly installed and the engine's lubrication system is functioning correctly.
What size thread is a Chevy 350 oil filter?
13/16 in
13/16 in. -16, 3/4 in.
What size is a Subaru oil filter?
The Subaru oil filter size varies by model, but a common thread size is M16 x 1.5 mm. It is essential to use the correct part number for your specific vehicle model and year, as Subaru uses different filters, such as the 15208AA100 for older WRX/STI models and the 15208AA170 for newer WRX/BRZ models. Always check your owner's manual or use a parts finder to confirm the right size and part number.
Common Subaru oil filter sizes and part numbers
- M16 x 1.5 mm: A common thread size for many Subaru models.
- 15208AA100: Fits older models like the 2002-2014 WRX and 2004-2021 STI.
- 15208AA170: Fits newer models like the 2015-2025 WRX and 2022-2025 BRZ.
- 15208AA21A: Fits models such as the 2019-2025 Ascent, Legacy, and Crosstrek.
- 15208AA031: Another common Subaru oil filter, sometimes used on different model years.
How to find the right oil filter
- Check your owner's manual: The manual will list the correct oil filter size and part number for your specific vehicle.
- Use an online parts finder: Websites like Subaru Parts Pros allow you to enter your vehicle's year, make, and model to find the exact filter you need.
- Consult a dealer or parts store: They can look up the correct part number for your car based on its VIN.
What is the thread on the ej25 oil filter?
Oil Filter Thread: M20 x 1.5.
What oil filter has 3/4/16 threads?
Many oil filters have a 3/4"−163 / 4 " minus 163/4"−16 thread size, including popular models from Fram (like the PH4967, PH2825, and HP-1/HP-3), Wix (like the 51515), and various specialty filters from brands like Canton Racing, Moroso, and Baldwin. The specific filter you need will depend on your vehicle or engine's other specifications, such as its length and gasket diameter.
Examples of oil filters with 3/4"−163 / 4 " minus 163/4"−16 threads
- Fram: Several Fram filters use this thread size, including the PH4967, PH2825, HP-1, and HP-3.
- Wix: The Wix 51515 is a common replacement filter that fits this thread size.
- Canton Racing Products: The 25-566 Billet Aluminum Spin-On filter is a high-performance option with this threading.
- Moroso: The Moroso Racing Oil Filter is available for severe racing conditions with a 3/4"−163 / 4 " minus 163/4"−16 thread.
- Baldwin: The BT353 model from Baldwin Filters has a 3/4"−163 / 4 " minus 163/4"−16 thread.
- STP: The STP S16 spin-on oil filter also features the 3/4"−163 / 4 " minus 163/4"−16 thread size.
How to choose the right filter
- Cross-reference part numbers: You can use a cross-reference guide or your vehicle's manual to find which filter part numbers are compatible with your engine. For example, the Fram HP-1 filter replaces several other part numbers like the PH8A, WIX 41515, and WIX 51515.
- Check physical dimensions: In addition to the thread size, ensure the filter's length, outer diameter, and gasket diameter are compatible with your engine.
- Consider the application: For racing applications, a high-performance filter like the Moroso or Canton might be a better choice due to higher flow rates and strength.
