The Kohler 12 050 01 (also labeled as 12 050 01-S or 1205001S) is one of the most widely used oil filters in Kohler small engines. It’s designed to provide optimal oil flow and filtration efficiency for engines found in lawn mowers, garden tractors, zero-turn mowers, and generators.
To help you find compatible replacements, this post provides a complete Kohler 12 050 01 oil filter cross-reference chart featuring top brands and equivalents that meet or exceed OEM standards.
Kohler Oil Filter 12 050 01 Cross Reference Chart
| Brand | Equivalent Filter Number | Thread Size | Length (Approx.) |
|---|---|---|---|
| Kohler (OEM) | 12 050 01 / 12 050 01-S / 1205001S | 3/4″-16 | 2.9 in |
| WIX | 51056 | 3/4″-16 | 2.9 in |
| Fram | PH3614 | 3/4″-16 | 2.9 in |
| Purolator | L10241 | 3/4″-16 | 2.9 in |
| Bosch | 3330 | 3/4″-16 | 2.9 in |
| AC Delco | PF53 | 3/4″-16 | 2.9 in |
| Motorcraft | FL-910S | 3/4″-16 | 3.0 in |
| SuperTech | ST3614 | 3/4″-16 | 3.0 in |
| NAPA Gold | 1056 | 3/4″-16 | 2.9 in |
| Baldwin | B1400 | 3/4″-16 | 3.0 in |
| Donaldson | P502067 | 3/4″-16 | 2.9 in |
| John Deere | AM125424 | 3/4″-16 | 3.0 in |
| STP | S3614 | 3/4″-16 | 2.9 in |
| Prime Guard | POF5410 | 3/4″-16 | 2.9 in |
| Royal Purple | 10-2835 | 3/4″-16 | 3.0 in |
| Mobil 1 | M1-102 | 3/4″-16 | 3.0 in |
| K&N | HP-1002 | 3/4″-16 | 3.0 in |
| Champ | PH2835 | 3/4″-16 | 2.9 in |
| Hastings | LF240 | 3/4″-16 | 2.9 in |
| Luber-Finer | PH2835 | 3/4″-16 | 2.9 in |
| Fleetguard | LF3339 | 3/4″-16 | 2.9 in |
| Carquest | 85556 | 3/4″-16 | 2.9 in |
| Denso | 150-2004 | 3/4″-16 | 3.0 in |
| Amsoil | EA15K12 | 3/4″-16 | 3.0 in |
| Powercare | 49065 | 3/4″-16 | 3.0 in |
| Onan | 122-0645 | 3/4″-16 | 3.0 in |
| Fleetrite | LFP5547 | 3/4″-16 | 3.0 in |
| MicroGard | MGL3614 | 3/4″-16 | 2.9 in |
| Service Pro | M4612 | 3/4″-16 | 2.9 in |
| EcoGard | X4612 | 3/4″-16 | 2.9 in |
| Autolite | AL10241 | 3/4″-16 | 2.9 in |
| Pennzoil | PZ-37 | 3/4″-16 | 2.9 in |
| Beck/Arnley | 041-8075 | 3/4″-16 | 3.0 in |
| PartsMaster | 67356 | 3/4″-16 | 2.9 in |
| Valvoline | VO-35 | 3/4″-16 | 3.0 in |
| Prime Guard | POF5307 | 3/4″-16 | 3.0 in |
| NAPA Silver | 21056 | 3/4″-16 | 2.9 in |
| Warner | WL10241 | 3/4″-16 | 2.9 in |
| Sure Filter | SFO-1024 | 3/4″-16 | 3.0 in |
| Technocar | OP846 | 3/4″-16 | 2.9 in |
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Best Kohler 12 050 01 Replacement Oil Filters
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1. WIX 51056 Oil Filter
Features:
- Premium pleated filter media captures up to 99% of oil contaminants.
- Built-in anti-drainback valve prevents dry starts.
- Heavy-duty canister construction for higher burst strength.
- Compatible with most Kohler Command and Courage engines.
- Trusted American-made brand known for OEM-level performance.
2. Mobil 1 M1-102 Extended Performance Oil Filter
Features:
- Synthetic fiber media provides 99.6% multi-pass efficiency rating.
- Can handle up to 15,000 miles or 1 year of use with synthetic oil.
- Reinforced end caps and silicone gasket ensure leak-free sealing.
- Works well in high-temperature and long-running engines.
- One of the best-rated filters for longevity and protection.
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3. K&N HP-1002 Performance Oil Filter
Features:
- Designed for high-flow performance and quick oil circulation.
- Wrench-off nut (1” nut on top) allows easy removal during servicing.
- Thick canister and heavy-duty base plate for added strength.
- Compatible with Kohler, Honda, and Kawasaki small engines.
- Excellent for commercial mowers and high-demand applications.
4. FRAM PH3614 Extra Guard Oil Filter
Features:
- Engineered for up to 10,000 miles of protection.
- Features a SureGrip™ textured surface for easy installation/removal.
- 95% filtration efficiency for particles ≥20 microns.
- Widely used for small engines, lawn mowers, and tractors.
- Excellent balance between affordability and reliability.
5. Royal Purple 10-2835 Premium Oil Filter
Features:
- Utilizes 100% synthetic micro-glass filtration media.
- Traps particles as small as 25 microns with 99% efficiency.
- Thick shell and silicone anti-drainback valve for long life.
- Ideal for heavy-duty, high-performance engines.
- Offers superior oil flow and filtration stability in all weather.
Related Fram Cross Reference Oil Filter Chart(All Brands)
Kohler 12 050 01 Filter Applications
This oil filter fits a wide range of Kohler Command, Courage, Aegis, and XT series engines. Common mower and tractor brands that use these engines include:
- Cub Cadet
- John Deere
- Ariens
- Husqvarna
- Toro
- Gravely
- Craftsman
Before purchasing a replacement, check your current filter’s model or your engine’s manual to confirm compatibility and dimensions.
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Choosing the Right Replacement
1. Check Thread Size and Seal
The filter must match the 3/4″-16 thread and have the correct gasket seat diameter for a proper seal.
2. Mind the Filter Length
Longer filters increase oil capacity and filtration area but might not fit tight engine compartments.
3. Prioritize Quality
While OEM filters ensure an exact fit, brands like WIX, Baldwin, Mobil 1, and K&N offer high-efficiency filters with advanced media for better oil flow and protection.
4. Replace Regularly
Always replace the oil filter during every oil change, typically every 50 to 100 engine hours, depending on usage.
Maintenance Tip
When replacing your Kohler oil filter:
- Lubricate the rubber gasket with a little clean oil.
- Hand-tighten the filter until the gasket contacts the mounting surface, then turn it an additional ¾ turn.
- Check for leaks after starting the engine.
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FAQs
Are all Kohler engine oil filters the same?
No. Kohler produces several oil filter models with different thread sizes, lengths, and bypass valve ratings. The 12 050 01 fits many Kohler Command and Courage engines, but others may require filters such as 52 050 02-S or 25 050 22-S. Always match the filter number in your engine’s manual to ensure proper fit and performance.
Can you use a Briggs & Stratton oil filter on a Kohler engine?
In some cases, yes, but only if the thread size, gasket diameter, and filter height match exactly. Many Briggs & Stratton filters use the same 3/4″-16 thread, but always check the specifications before swapping. Using a non-matching filter may cause oil leaks or pressure issues.
What is the difference between yellow and black Kohler oil filters?
The black filters are Kohler’s standard filters, while the yellow filters are typically extended-life or high-capacity versions. Both perform well, but yellow filters generally offer longer service intervals and are used in higher-duty or commercial engines.
How do I know if an oil filter is compatible?
You can confirm compatibility by checking:
- The thread size (must be 3/4″-16 for this model)
- The outer diameter and length
- The bypass valve pressure rating (usually between 8–12 psi)
- The OEM cross-reference chart provided by your filter manufacturer
Can oil filters be interchanged?
Yes, many oil filters are interchangeable as long as they share the same dimensions, thread size, and functional design. However, avoid blindly swapping filters, always consult a cross-reference chart or manufacturer’s guide to ensure exact compatibility and to prevent damage or oil pressure problems.
Final Thoughts
The Kohler 12 050 01 oil filter is a dependable option for a wide range of Kohler-powered machines. Using the cross-reference chart above, you can confidently choose alternatives from trusted brands like WIX, Fram, Purolator, Bosch, or Mobil 1 that offer equal or even superior performance.
Whether you stick with the OEM Kohler filter or select a premium aftermarket one, the key is to maintain regular oil changes and ensure your filter fits precisely, keeping your Kohler engine running strong and clean for years to come.
