An engine oil filter plays a crucial role in keeping your Kawasaki 23 HP engine running smoothly by trapping dirt, metal particles, and sludge that would otherwise circulate through the engine. Using a quality oil filter ensures optimal lubrication, reduces engine wear, and extends the life of your mower or equipment.
In this post, we’ll explore the best oil filters compatible with Kawasaki 23 HP engines and highlight the features that make them stand out.
Kawasaki 23 HP Engine Oil Filter
1. Kawasaki OEM 49065-0721 Oil Filter

This is the official replacement part recommended by Kawasaki for many of their FR, FS, and FX engines. It’s designed to meet factory specs and offers the best fit and filtration efficiency.
Features:
- High-efficiency filter media for extended engine life
- Built to fit Kawasaki 23 HP models like FR691V, FS691V, and FX691V
- Strong internal construction to resist collapse under pressure
- Enhanced anti-drain back valve to maintain oil pressure at startup
- Factory-backed quality and reliability
2. Fram PH4967 Extra Guard Oil Filter

Fram’s Extra Guard series is a trusted aftermarket choice for small engines. The PH4967 fits many Kawasaki mower engines and offers solid filtration for up to 5,000 miles or equivalent engine hours.
Features:
- Proven filtering media captures 95% of harmful particles
- Low-restriction design maintains oil flow under high loads
- Compatible with Kawasaki FR/FS/FX 23 HP series engines
- Durable steel base plate and internally lubricated gasket
- Easy to install and remove with a grippy outer texture
3. Stens 120-634 Oil Filter

The Stens 120-634 is a popular aftermarket filter that replaces Kawasaki OEM 49065-7007 and 49065-0721. Known for its high build quality, this filter is used by many professional landscapers.
Features:
- High micron filtration keeps engine oil clean
- Works on a wide range of Kawasaki small engines
- Heavy-duty canister resists damage and corrosion
- Cost-effective alternative to OEM parts
- Includes anti-drain back valve for startup protection
4. Briggs & Stratton 842921 Oil Filter

Though branded by Briggs & Stratton, this filter is also compatible with Kawasaki engines due to its size and thread match. It offers premium filtration and long service life.
Features:
- High dirt-holding capacity is ideal for extended intervals
- Compatible with Kawasaki 23 HP engines
- OEM-quality gasket ensures leak-free operation
- Rugged outer shell protects against engine vibration
- Designed for both vertical and horizontal engine installations
5. HIFROM 49065-7007 Oil Filter Replacement

HIFROM offers an affordable oil filter that directly replaces Kawasaki part 49065-7007. While it’s a budget-friendly option, it still provides decent performance for residential use.
Features:
- Direct fit for Kawasaki 23 HP FR, FS, and FX series
- Designed to trap fine particles and sludge
- Synthetic fiber filtration media
- Comes with anti-drain back and pressure relief valves
- Ideal for users who change oil more frequently
Related 23 HP Kawasaki Engine Oil Type(Detailed Guide)
Do All Kawasaki 23 HP Engines Use the Same Oil Filter?
Most Kawasaki 23 HP engines fall under the FR, FS, or FX series, such as FR691V, FS691V, or FX691V. These models generally use the same oil filter or filters with very similar specifications. However, always check your owner’s manual for the recommended part number, usually Kawasaki OEM 49065-7007 or its upgraded version 49065-0721.
Related SCAG Kawasaki Engine Oil Capacity(Oil Capacities by Model)
How Often Should You Replace the Oil Filter on a Kawasaki 23 HP Engine?
For most Kawasaki engines, the oil filter should be changed every 100 hours of operation or annually, whichever comes first. However, if you’re mowing in dusty or demanding environments, it’s smart to replace the oil filter more frequently.
Always change the oil filter when performing a full oil change. Neglecting this step allows old contaminants to circulate in the engine, reducing the effectiveness of the fresh oil.
Related Briggs and Stratton Engine Oil Capacity Chart(For All Models)
What Type of Oil Should You Use With These Filters?
Kawasaki recommends using SAE 10W-40 or SAE 30 engine oil, depending on the climate and temperature conditions. For broader temperature ranges and better performance, SAE 10W-40 with API SJ or higher is a solid choice.
Make sure to fill the engine with the correct oil volume, usually between 1.8 to 2.1 quarts for the 23 HP models.
Related Kubota 3 Cylinder Diesel Engine Oil Capacity 19.5 HP
Final words
Choosing the right oil filter is a simple but critical part of maintaining your Kawasaki 23 HP engine. Look for filters with strong build quality, high-efficiency media, and compatibility with your engine’s specifications.
And don’t forget, routine oil and filter changes can make the difference between an engine that lasts a few years and one that lasts a decade.