When it comes to taking care of your Harley-Davidson, choosing the right oil filter is key. It’s one of the simplest tasks, but it has a big impact on how your bike runs. The good news is, understanding oil filters doesn’t have to be complicated.
I’m here to break it down for you. Let’s talk about why oil filters are so important, how to pick the right one, and what you should look out for to keep your Harley running smoothly.
Why Oil Filters Matter
The oil filter in your Harley-Davidson does one main job: it keeps the engine oil clean. As your bike runs, the engine collects dust, dirt, and small metal particles. Over time, these can build up in your oil. The filter traps these tiny particles, keeping your engine’s moving parts safe.
A clean engine means smoother riding and a longer life for your bike. That’s why changing your oil filter regularly is so important.
Not All Oil Filters Are the Same
You might think that all Harley-Davidson oil filters are the same. But they’re not. Different models of Harley bikes need different types of filters. The right filter depends on your bike’s engine and year.
Here’s what to keep in mind:
- Older Harley Models (Evolution engines): These bikes use a 40-micron filter. This filter is built to handle the older engine design. It doesn’t capture as small of particles as newer filters, but that’s okay. The older engines work best with this type of filter to keep oil flowing smoothly.
- Newer Harley Models (Twin Cam, Milwaukee-Eight): These engines use a 5-micron filter. The 5-micron filter captures smaller particles. It helps keep the newer engines running cleaner and more efficient.
Harley-Davidson OEM Oil Filter Part Numbers by Model and Engine Type
| Harley Model/Engine Type | Filter Type/Description | Old Part Number (if applicable) | New Part Number (if applicable) | Applicable Years/Notes |
| Sportster 883 & 1200 | Standard | N/A | HD-63762-99 | General Reference |
| Sportster (various) | H-D Genuine Long | 63805-80A | 63805-80B | Also 63805-80A for Sportster oil filter |
| Softail Models | Standard | N/A | HD-63796-99 | General Reference |
| Softail Models | H-D Genuine Long (Chrome) | 63796-77A | 63796-77B | |
| Dyna Models | Standard | N/A | HD-63606-99 | General Reference |
| Touring Models | Standard | N/A | HD-63765-06 | General Reference |
| Twin Cam (99-17) & Evolution (99-later, except 08-13 XR), Milwaukee-Eight (17-later) | Super Premium 5 (Black) | 63731-99A | 63731-99B | Upgrade for 63796-77A, 63805-80A, 63812-90, 63813-90 |
| Twin Cam (99-17) & Evolution (99-later, except 08-13 XR), Milwaukee-Eight (17-later) | Super Premium 5 (Chrome) | 63798-99A | 63798-99B | Upgrade for 63796-77A, 63805-80A, 63812-90, 63813-90 |
| Twin Cam 103 (FLHR, FLHRC, FLHTCU, FLHX, FLHXS, FLHTCU TC, FLHTK) | Super Premium 5 (Black) | 63731-99A | N/A | |
| Milwaukee-Eight (MKE 8) | Super Premium 5 (Black) | 62700296 | 62700296A | |
| Milwaukee-Eight (MKE 8) | Super Premium 5 (Chrome) | 62700297 | 62700297A | |
| All Models | Super Premium 10 (Black) | 63793-01K | 63793-01KA | |
| Revolution Max Engines (Nightster, Sportster S, Pan America) | Spin-On, Rev Max (Black) | 62700280 | 62700280A |
Aftermarket Oil Filter Cross-Reference Chart
| Harley-Davidson OEM Part Number | K&N Equivalent Part Number(s) | WIX Equivalent Part Number(s) | Mobil 1 Equivalent Part Number(s) | HiFlo Equivalent Part Number(s) | PurePower! Equivalent Part Number(s) | Notes/Fitment |
| 62700045 | KN-175, KN-204-1, KN-204C | N/A | N/A | N/A | N/A | All Models |
| 6373199 | KN-171B, KN-171C, SO-1002 | 57148, 7148 | N/A | N/A | N/A | All Models , Select 88-20 HD Models |
| 6373199A | N/A | 57148, 7148 | M1MC132 | N/A | N/A | Select 88-20 HD Models |
| 63793-01K | KN-174C | N/A | N/A | HF-174 | PP8101 | V-Rod Only |
| 63796-77A | KN-170 | N/A | N/A | N/A | PP8110 | Evolution Big Twin, Sportster Models |
| 6379899 | KN-171B, KN-171C | 57148, 57348, 7148 | N/A | N/A | N/A | All Models , Select 88-20 HD Models |
| 6379899A | N/A | 57148, 57348, 7148 | N/A | N/A | N/A | Select 88-20 HD Models |
| 63805-80A | KN-170 | N/A | N/A | N/A | PP8110 | Evolution Big Twin, Sportster Models |
| 63805-80T | N/A | N/A | N/A | N/A | PP8110 | |
| 63806-83 | N/A | N/A | N/A | N/A | PP8110 | |
| 63812-90 | N/A | N/A | N/A | N/A | PP8110 | |
| 63813-90 | N/A | N/A | N/A | N/A | PP8110 |
What is a Micron Rating?
The micron rating of an oil filter tells you how small of particles the filter can catch. A 5-micron filter can catch smaller particles than a 40-micron filter. But here’s the catch: using a filter that’s too fine for an older engine can limit oil flow. And that could cause problems.
Each engine type has a recommended micron rating. Using the wrong one can cause oil starvation or let dirt slip through.
Filter Size and Fit: Why It Matters
Oil filters come in different sizes. They vary in thread size and diameter. You need to match the filter size to your bike’s specs. If the filter is too big or too small, it won’t fit properly. This can lead to oil leaks or engine damage over time.
- Sportster Models: These bikes have unique filter sizes. Make sure you check the part number to get the right one.
- Touring and Softail Models: These larger bikes need bigger filters. They hold more oil and are built for bigger engines.
Why You Should Use the Right Filter
It’s tempting to grab any filter that fits. But that could cause serious problems down the line. The right filter will protect your engine by catching debris and keeping the oil clean.
Using the wrong filter can restrict oil flow, leading to engine damage. It might also leave small particles in the oil, which can cause wear on engine parts. That’s why it’s important to stick to the right filter for your bike.
Choosing the Right Oil Filter for Your Harley-Davidson
Now that we know why oil filters matter and how they vary, let’s dive into how to choose the right one for your Harley-Davidson. It can be a bit confusing with so many options out there, but don’t worry—I’ve got you covered.
1. Check Your Owner’s Manual
The first place to look when you need a new oil filter is your Harley’s owner’s manual. It’s your best friend when it comes to finding the right specs for your bike. Harley-Davidson lists the correct filter part number in the manual, along with any other details you’ll need, like oil capacity and oil change intervals.
If you don’t have a paper manual, you can usually find the digital version on Harley-Davidson’s website. It’s a simple way to make sure you’re picking the right filter.
2. Know Your Bike’s Engine Type
As I mentioned before, Harley-Davidson bikes use different filters depending on the engine. Here’s a quick breakdown:
- Sportster (Evolution engines): These bikes need a 40-micron filter. The Evolution engines are older designs, so the filter doesn’t need to capture the smallest particles. But be careful not to use a newer 5-micron filter in these engines, as it could slow down oil flow.
- Softail, Touring (Twin Cam and Milwaukee-Eight engines): These newer engines use a 5-micron filter. It’s designed for tighter tolerances in these advanced engine designs. These filters capture smaller debris and ensure your engine runs clean.
If you’re unsure about which engine type you have, check the model year and specifications in your manual. The engine type will determine which oil filter is best.
3. Compare Filter Sizes and Thread Types
Oil filters come in different sizes to fit the various Harley models. Not all Harley-Davidson bikes use the same filter, so size and thread type are crucial to get right. You’ll want to make sure the filter matches the threads on your bike’s oil filter housing.
Here are some key things to check:
- Thread size: This is one of the most common mistakes when choosing a filter. The wrong thread size won’t screw in correctly and can cause leaks. Always verify the correct size before purchasing.
- Filter diameter: The diameter of the filter must match the housing. A filter that’s too large or small will cause issues.
Some filters have a chrome finish, while others are black. While this might seem like a cosmetic choice, make sure the size and specs are the same. You can always check with your local Harley-Davidson dealer to confirm compatibility if you’re unsure.
4. Consider Aftermarket Filters
Harley-Davidson offers high-quality OEM (original equipment manufacturer) filters, but there are also aftermarket options worth considering. Aftermarket filters are often a bit cheaper, and some are reusable, which can save you money in the long run.
However, be cautious when picking aftermarket filters. Some are designed to offer higher filtration efficiency, but they might not work well with older engines. As we talked about, a 5-micron filter can restrict oil flow in older engines like those found in the Evolution series.
If you decide to go aftermarket, look for trusted brands with a solid reputation for quality. Avoid cheap knock-offs that may not have the right specifications.
5. Understand Filter Materials
Not all filters are created equal. The filter material plays a big role in how effectively the filter catches debris. Harley-Davidson’s filters use fiber material, which is great at trapping dirt without restricting oil flow. But if you decide to go with an aftermarket option, look for filters made with premium materials like synthetic fibers for better performance.
While these materials can offer improved filtration, remember to always stay within the specifications outlined for your bike. A filter with better materials may still need to meet the size, thread, and micron rating requirements to avoid engine damage.
Recommended Harley-Davidson Oil and Filter Change Intervals
| Interval | Service Action | Notes |
| 1,000 miles | Change Engine Oil & Filter | Break-in service, required for warranty |
| 5,000 miles | Change Engine Oil & Filter | Standard full service, or at least once a year |
| 7,500 miles | Change Engine Oil & Filter | Routine maintenance interval |
| Annually | Change Engine Oil & Filter | Recommended regardless of mileage, especially for stored bikes or challenging climates |
Harley-Davidson Oil Filter and Drain Plug Torque Specifications
| Component | Torque Specification (ft-lbs) | Torque Specification (N-m) | Notes |
| Oil Filter (Twin Cam) | 19 | 26 | Hand-tight + 1/2 to 3/4 turn after gasket contact is common practice, but manufacturer spec is recommended to prevent damage or leaks |
| Engine Oil Drain Plug | 14-21 | 19-28.5 | Use a new sealing washer if applicable; snug tight for O-ring plugs |
| Primary Drain Plug | 14-21 | 19-28.5 | Snug tight for O-ring plugs |
| Transmission Drain Plug | 14-21 | 19-28.5 | Snug tight for O-ring plugs |
Changing Your Harley-Davidson Oil Filter (with Product Recommendations)
Changing your Harley-Davidson oil filter is one of the easiest yet most important maintenance tasks you can do. With the right tools and products, it’s a breeze. In this section, we’ll walk through the steps for a successful oil change, while recommending some of the best products on the market to help you get the job done.
1. Gather the Right Tools and Products
Before you start the oil change, it’s essential to have the right tools and supplies. Here are the products I recommend:
- Wrenches: The right size wrench is crucial to safely removing the drain plug without damaging it. I recommend the Craftsman 3/8-Inch Drive Socket Set for its durability and variety.
- Oil Filter Wrench: If your filter is a little tight, an oil filter wrench is essential. The K&N 88-2125 Oil Filter https://amzn.to/3Hdx3PRWrench is a perfect fit for Harley-Davidson bikes and makes removing stubborn filters a breeze.
- Drain Pan: You need a solid, large drain pan to catch the old oil. The Hopkins 16620 FloTool 16-Quart Drain Pan works great for Harley-Davidsons.
- Gloves: To keep your hands clean, I recommend Mechanix Wear Impact Pro Gloves, which provide comfort and protection while working on your bike.
By having all these items ready, you’ll save time and avoid frustration.
You can also read : 5 Best Oil Filters for Harley-Davidson for 2025: A Guide to Protecting Your Engine
2. Prepare Your Bike
For a smoother oil change, you’ll want to prepare your bike properly.
- Warm up the Engine: A quick ride around the block to warm up the oil helps it drain faster. Don’t worry about the oil getting too hot—just a few minutes should do the trick.
- Secure the Bike: Place the bike on a level surface. If you don’t have a center stand, you can use the Viking Cycle Motorcycle Lift to raise your bike up. This helps ensure you’re draining the oil completely.
- Protect Your Hands: Make sure to wear a pair of Mechanix Wear Original Gloves for a comfortable grip while handling the oil and filter.
3. Drain the Old Oil
This step is straightforward but crucial. The key is to give your oil enough time to fully drain.
- Position the Drain Pan: Make sure your pan is centered beneath the drain plug to catch all the oil.
- Drain the Oil: Remove the drain plug using your wrench and allow the oil to flow out. This may take several minutes, so be patient.
- Inspect the Drain Plug: Take a moment to inspect your drain plug for any metal shavings or debris. This can be a sign of wear inside your engine.
At this point, Royal Purple High Performance Synthetic Oil is a great choice for your Harley’s next oil change. It provides superior protection, reduces wear, and helps keep your engine running smoothly.
4. Remove the Old Oil Filter
Now comes the tricky part—removing the old filter. If it’s stuck, use an oil filter wrench to loosen it.
- Use the K&N 88-2125 Oil Filter Wrench: This tool is specifically designed for Harley-Davidson models and helps make removing the filter a lot easier.
- Don’t Over-Tighten the Filter: When installing the new filter, hand-tighten it until the gasket makes contact with the mounting surface, then turn it another half to three-quarters of a turn. Don’t over-tighten, as this can lead to difficulty removing the filter next time.
For the best performance, I recommend the Harley-Davidson Genuine Motor Parts Oil Filter, which offers excellent filtration and is specifically designed for Harley engines.
5. Install the New Oil Filter
Once the old filter is removed, it’s time to install the new one. Here’s what I do:
- Lubricate the Gasket: Use a bit of the fresh oil to lubricate the rubber gasket on the new filter. This ensures a good seal and prevents leaks.
- Install the New Filter: Screw the filter onto the mounting surface and tighten it by hand. Remember, no need for a wrench here—hand-tightening should be enough.
- Check for Leaks: Once the filter is installed, take a moment to check around the filter area. Look for any oil leaks. If you spot any, tighten the filter a little more.
For a reliable oil filter, K&N KN-170 Oil Filter is a fantastic option. It provides high flow rates and excellent filtration, making it a great choice for your Harley.
6. Add Fresh Oil
Now that the filter is installed, it’s time to add the fresh oil. Be sure to use the recommended oil for your specific model.
- Use the Right Oil: Harley-Davidson recommends using Harley-Davidson 20W-50 Synthetic V-Twin Motor Oil for most models. If you’re looking for something with a bit more performance, Amsoil 20W-50 Synthetic Motorcycle Oil is another great choice, offering superior protection under extreme conditions.
- Check the Oil Level: After adding the oil, check the oil level using the dipstick. Run the engine for a minute, shut it off, and then check the oil again. Make sure the level is between the low and high marks on the dipstick.
7. Dispose of the Old Oil and Filter
Lastly, make sure you properly dispose of the used oil and filter. Many local auto parts stores, like AutoZone or O’Reilly Auto Parts, offer oil recycling programs.
You can also read : Twin Cam 88 Oil Capacity Chart: Everything You Need to Know 2025
Final Tips and Maintenance Insights for Your Harley-Davidson
Now that your Harley-Davidson’s oil filter has been changed and fresh oil is in place, let’s discuss a few more tips to ensure your motorcycle stays in top condition. Regular maintenance is key to enjoying a smooth and safe ride for years to come.
1. Keep Track of Oil Change Intervals
While Harley-Davidson recommends an oil change every 5,000 miles, many owners prefer to change the oil more frequently—around 3,000 miles. This is especially true for riders who want to maintain peace of mind by ensuring the engine is always running with fresh oil. Regular oil changes prevent engine wear and can catch potential issues early.
- Tip: If you’re unsure when the last oil change was done, it’s always a good idea to err on the side of caution and change it. Staying on top of oil changes will help extend the life of your engine.
2. Inspect the Oil Filter During Regular Maintenance
It’s not enough to just change the oil. You should regularly inspect your oil filter for signs of wear or damage. If you notice any issues, replace the filter even if it’s before your scheduled change. The oil filter plays a crucial role in keeping your engine clean and running smoothly.
- Tip: Many Harley-Davidson owners recommend cutting open the old filter and inspecting the used media for any signs of metal debris. This “filter autopsy” can give you valuable insight into the health of your engine.
3. Pay Attention to Your Engine Oil Capacity
The oil capacity varies by model, so it’s important to know how much oil your Harley needs. For example, the newer Milwaukee-Eight engines typically hold about 5 quarts of oil, while older Twin Cam engines hold slightly less. Using the correct amount of oil ensures that your engine is properly lubricated and protected.
- Tip: Always check the owner’s manual for your specific model to determine the correct oil capacity. Overfilling or underfilling can lead to problems with engine performance.
4. Seasonal Maintenance
Before storing your Harley for the winter, it’s a good idea to change the oil and filter. Used oil can break down and accumulate contaminants, and leaving it in the engine during long periods of storage can lead to corrosion. Changing the oil before storage helps keep the engine in good shape while it’s not in use.
- Tip: If you’re storing your bike for an extended period, consider running the engine briefly to circulate the oil before putting it into storage.
5. Quality Matters
While it may be tempting to go for cheaper, generic oil filters, always remember that the quality of the oil filter matters. Using a high-quality filter, like the Harley-Davidson Genuine Motor Parts Oil Filter or K&N KN-170 Oil Filter, ensures better filtration and protects your engine better in the long run.
- Tip: Stick with OEM (original equipment manufacturer) parts when possible. Harley’s filters are designed to work perfectly with their engines, offering superior protection.
6. Keep an Eye on Leaks
After changing the oil and filter, make sure to check for leaks. If the oil filter is properly installed, you shouldn’t have any leaks, but it’s always good practice to double-check. Look around the oil filter, drain plug, and any other seals for signs of oil dripping.
- Tip: If you notice any oil leaks, it’s important to fix them immediately. Leaks can lead to low oil levels and potential engine damage.
More: How Much Fork Oil Do I Need? A Rider’s Guide to Fork Maintenance
FAQs For Harley Davidson Oil Filter Chart
FAQ 1: What is the Harley Davidson Oil Filter Chart?
Answer:
The Harley Davidson Oil Filter Chart is a guide that helps you choose the right oil filter for your bike model. It includes filter sizes, thread types, and micron ratings, ensuring you pick the best filter for your Harley.
FAQ 2: Are all Harley Davidson oil filters the same size?
Answer:
No, Harley Davidson oil filters come in different sizes. Each model has its own requirements, such as thread pitch and filter media. Always check your owner’s manual for the correct size.
FAQ 3: How do I know which oil filter fits my Harley Davidson?
Answer:
To find the right oil filter for your Harley, refer to your owner’s manual. You can also use the Harley Davidson Oil Filter Chart, which lists compatible filters for each model and year.
FAQ 4: What happens if I use the wrong oil filter on my Harley?
Answer:
Using the wrong oil filter can cause leaks, oil flow issues, and even engine damage. Always ensure you’re using the correct filter, as specified in your bike’s manual or the Harley Davidson Oil Filter Chart.
FAQ 5: How often should I change the oil filter on my Harley Davidson?
Answer:
Harley Davidson recommends changing your oil and filter every 5,000 miles. However, many riders choose to do it every 3,000 miles for added engine protection and peace of mind.
FAQ 6: Can I use aftermarket oil filters on my Harley?
Answer:
Yes, you can use aftermarket oil filters. However, always choose a trusted brand like K&N or H-D Genuine Motor Parts to ensure compatibility and quality. Refer to the Harley Davidson Oil Filter Chart for guidance.
FAQ 7: Why is it important to use the right oil filter on my Harley?
Answer:
Using the correct oil filter ensures proper engine lubrication and avoids contamination. It helps your Harley perform better and prevents potential damage from insufficient oil filtration.
FAQ 8: What are micron ratings in Harley Davidson oil filters?
Answer:
Micron ratings indicate the size of particles an oil filter can trap. Harley’s Super Premium filters have a 5-micron rating for better filtration, while older models use 40-micron filters for less restriction.
FAQ 9: Can I change my Harley Davidson oil filter myself?
Answer:
Yes, changing your oil filter is a straightforward task that many Harley owners do themselves. Just make sure to follow the proper steps, use the correct filter, and tighten it to the specified torque.
FAQ 10: What type of oil filter should I use for a Harley Davidson Milwaukee-Eight engine?
Answer:
For a Milwaukee-Eight engine, use the Harley Davidson 5-micron Super Premium oil filter. This filter provides excellent filtration and ensures proper oil flow for the larger engine.
FAQ 11: What is the best oil filter for a Harley Davidson Sportster?
Answer:
For a Harley Davidson Sportster, the recommended oil filter is the 40-micron filter. Make sure to check the Harley Davidson Oil Filter Chart for your specific model year to ensure compatibility.
FAQ 12: How do I prevent oil filter leaks on my Harley?
Answer:
To prevent oil filter leaks, ensure the gasket is properly lubricated with fresh oil, and tighten the filter to the recommended torque. Always use the correct filter size for your Harley.
FAQ 13: Are Harley Davidson oil filters reusable?
Answer:
No, Harley Davidson oil filters are not reusable. After each oil change, replace the old filter with a new one to ensure optimal engine protection and performance.
FAQ 14: What’s the difference between a 5-micron and 40-micron oil filter for Harley Davidson?
Answer:
The 5-micron filter offers finer filtration, capturing smaller particles for cleaner oil. The 40-micron filter allows more oil flow but is less efficient at trapping smaller debris. Choose based on your bike’s needs.
FAQ 15: What should I do if my Harley Davidson oil filter is difficult to remove?
Answer:
If your Harley Davidson oil filter is hard to remove, try using a filter wrench or piercing it with a screwdriver. Avoid over-tightening the filter during installation to prevent this issue in the future.
More : Avoid Mistakes: How to Check Motorcycle Oil Level Without Dipstick
Conclusion
In the world of Harley-Davidson ownership, oil changes may seem like a small task, but they’re essential to keeping your bike in top form. By using the correct oil filter, following the proper oil change procedures, and keeping an eye on engine health, you’ll ensure your Harley runs smoothly for years to come.
Changing the oil filter is not just about maintaining the engine’s performance but also about keeping your riding experience smooth, safe, and enjoyable. Whether you’re taking a long road trip or enjoying a weekend ride, a well-maintained Harley-Davidson will always perform at its best.
For the next time you’re due for an oil change, remember to keep track of your Harley’s oil filter chart, use high-quality products, and follow the tips mentioned here. With these insights, you’ll be able to keep your bike running like a well-oiled machine.