What size is the thread on a Dodge Ram oil filter?
The thread size for most Dodge Ram oil filters is 3/4-16 UNF.
Across Ram’s range of gasoline and diesel engines, the standard mounting thread for spin-on oil filters is typically 3/4 inch in diameter with 16 threads per inch (UNF). However, there are exceptions by engine and year, so it’s wise to verify for your exact model and replacement filter.
Common Ram oil filter thread size
Below is a quick overview of how the standard thread size appears across Ram engine families. This list helps you anticipate what to expect when shopping for a replacement.
- Gasoline Ram engines (e.g., 5.7L Hemi, 6.4L Hemi): typically 3/4-16 UNF
- Diesel Ram engines (e.g., 6.7L Cummins): typically 3/4-16 UNF
- EcoDiesel Ram (3.0L): typically 3/4-16 UNF
- Note: Some aftermarket or alternate-filter configurations may vary—always check the packaging or part number
In practice, 3/4-16 UNF is the standard for most Ram configurations, but always confirm against your exact year and engine to avoid mismatches with cross-threading or leaks.
How to verify the thread size for your Ram
To ensure you get the correct filter, use these verification steps. This helps prevent buying the wrong thread size or filter type.
- Consult the owner's manual or service manual for your specific Ram model and engine.
- Check the packaging or label on the oil filter you plan to install; the thread size is usually listed there (look for 3/4-16 UNF).
- If you’re replacing the existing filter, you can measure the threaded portion or compare it to a known 3/4-16 filter to confirm compatibility.
- When in doubt, ask a dealer or qualified shop to verify the correct filter size for your exact year and engine.
These steps help ensure you select a filter with the correct thread and sealing specifications for your Ram, reducing the risk of leaks or fitment issues.
Summary
For most Dodge Ram models, the oil filter thread size is 3/4-16 UNF. This standard applies to many gasoline and diesel engines across recent generations. Always confirm for your specific year and engine by checking the owner's manual and the filter packaging, or consult a dealer if you’re unsure.
What size is the oil filter thread on a Dodge Ram 1500?
Installation Time
| Anti Drain Back Valve | Yes |
|---|---|
| Style | Spin-On |
| Thread Specification | M22 X 1.5 |
| Product Style | Oil Filters |
| Weight | 0.6 lb (0.2 kg) |
What size are filter threads?
To filter thread size, check the front of your lens or lens cap for a circle with a horizontal line through it, followed by a number (e.g., Ø67mm). This number is the filter diameter in millimeters and must match the size of the filter you buy to ensure a proper fit without vignetting. For multiple lenses, it's often more economical to buy one large filter and use step-up rings to adapt it to smaller lenses.
How to find and use filter thread size
This video explains how to find your camera's filter thread size: 55sPolarProYouTube · Sep 21, 2023
- Find the size on your lens: Look for a symbol that looks like a circle with a line through it (Ø) followed by a number, such as Ø58mm or Ø77mm. This marking is often on the front of the lens itself, or sometimes printed on the lens cap.
- Match the filter to the lens: The number you find is the filter diameter you need. You must purchase a filter with the exact same millimeter (mm) measurement to ensure it screws on correctly.
- Understand common sizes: Common filter sizes include 49mm, 52mm, 58mm, 62mm, 67mm, 72mm, 77mm, and 82mm, though your lens may have a different size.
- Use step-up/step-down rings:
- Step-up rings: Allow you to use a larger filter on a smaller lens. This is a useful option to save money if you have several lenses with different sizes by only buying one large filter and a few rings.
- Step-down rings: Allow you to use a smaller filter on a larger lens. However, using a step-down ring that is smaller than one or two sizes can cause the filter to block light and create dark corners (vignetting) in your photos, so they should be avoided if possible.
- Avoid "stacking" filters if possible: While some filters have threads on the front to allow another filter to be attached ("stacked"), this can lead to undesirable effects like ghosting.
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.
What size socket for Ram 1500 oil filter?
Be careful on the last few turns the oil can squirt suddenly. You will have to anticipate. This making sure you have an oil collector on hand let the oil run out for about 10.
