Looking to maintain your Honda Rancher 420’s peak performance? Choosing the correct oil filter is crucial for engine longevity and smooth rides. Our shopping guide simplifies finding the right Honda Rancher 420 oil filter part number, ensuring you get a perfect fit every time. Save time, avoid costly mistakes, and keep your ATV running its best with ease—start your search here!
Honda Rancher 420 Oil Filter Part Number Shopping Guide
Comparison Table: Common Honda Rancher 420 Oil Filter Part Numbers
| Filter Manufacturer | OEM/Aftermarket | Part Number | Notable Features | Fits Years |
|---|---|---|---|---|
| Honda (OEM) | OEM | 15412-HM5-A10 | High filtration, perfect fit, durable | 2007–2023 |
| Honda (OEM) | OEM | 15412-HP7-A01 | Updated design, direct replacement | Select models |
| FRAM | Aftermarket | CH6015 | Cellulose/synthetic, O-rings included | 2007–present |
| K&N | Aftermarket | KN-112 or KN-114 | High flow, performance focused | 2007–2022 |
| HiFloFiltro | Aftermarket | HF112 | Heavy-duty construction | 2007–present |
Understanding Honda Rancher 420 Oil Filter Part Numbers
Compatibility
Choosing the correct oil filter starts with understanding your Honda Rancher 420’s model year and trim. Most 420cc FourTrax Rancher models (TRX420) from 2007 to present use very similar filters, but always verify compatibility:
- OEM Filter: The most commonly specified Honda part number is 15412-HM5-A10. Some newer models may also use 15412-HP7-A01.
- Aftermarket Cross-References: Established brands like FRAM, K&N, and HiFloFiltro produce direct replacement filters. Their part numbers (e.g., FRAM CH6015, K&N KN-112) specifically match Rancher 420 engines.
Tip: Check your owner’s manual for the recommended part number, or match year/model to aftermarkets via the manufacturer’s application guides.
Function of the Oil Filter
The oil filter is a critical maintenance component. Its job is to trap and remove contaminants—like dirt, metal fragments, and sludge—from circulating engine oil. Clean oil ensures:
- Reduced engine wear
- Reliable hydraulic performance (including clutches for ATVs)
- Efficient cooling and smooth operation
A quality filter preserves your ATV’s engine, extending its lifespan and maintaining performance under heavy use or harsh conditions.
Installation Tips
Replacing the oil filter on a Honda Rancher 420 is straightforward but does require attention to detail:
- Warm Up Engine: Run the engine for a couple of minutes to warm the oil. This helps it drain faster and more completely.
- Draining Oil: Place the ATV on level ground. Remove the oil drain bolt and allow all oil to flow into a drain pan.
- Remove Old Filter: Unscrew the oil filter cover (you may need a socket wrench). Carefully remove the old filter and its O-rings. Inspect for any residue or gasket remains.
- Prep New Filter: Lightly oil the filter’s rubber gasket or O-rings with fresh engine oil. This ensures a good seal and easy removal next time.
- Install New Filter: Place the new filter in the correct orientation. Some filters have a specific side facing outward; double-check markings.
- Torque Specs: Tighten the oil filter cover bolts to the manufacturer’s required torque—over-tightening may cause leaks or cracking.
- Add Fresh Oil: Fill with the recommended oil type (usually 10W-30 or 10W-40 motorcycle/ATV oil). The oil capacity after filter change is approximately 1.85 quarts (1.75 liters), but always confirm this in your manual.
- Check for Leaks: Start engine, let it idle for a few minutes, then shut off and check for leaks at the filter and drain plug.
Tools Needed: Socket set, drain pan, clean rags, torque wrench, funnel.
Maintenance Advice
Proper maintenance protects your investment. Honda recommends:
- Change Oil & Filter Every 100 hours or 6 Months: Whichever comes first, especially crucial if riding in dusty, wet, or heavy-duty conditions.
- Inspect for Leaks: Regularly check your filter for tightness and for any oil seepage.
- Use Quality Oil & Filters: Avoid low-grade substitutes; OEM or reputable aftermarket filters are best for long-term reliability.
- Dispose Responsibly: Recycle used oil and filters at a certified center.
Practical Tips for Selecting and Using Honda Rancher 420 Oil Filters
- Stick to OEM or Quality Brands: Honda OEM filters are engineered for perfect compatibility. Aftermarket filters from FRAM, K&N, or HiFloFiltro are trusted alternatives if sourced from reputable dealers.
- Check the Package: Ensure the package includes all necessary O-rings/gaskets; most quality filters do.
- Cross-Reference: When in doubt, reference both the OEM part number and the model year in the retailer’s fitment guide.
- Don’t Delay Maintenance: Contaminated oil can rapidly damage internal engine parts. Change oil and filter on schedule, or sooner after tough rides or deep-water crossings.
- Oil Change Kits: For convenience, consider an oil change kit which includes 2–3 quarts of compatible motor oil and the correct oil filter with gaskets.
- Filter Orientation: Some filters only fit one way; install according to markings and manual.
- Keep a Record: Log date and hours for each oil/filter change—solid maintenance history protects against premature engine wear.
Technical Comparison Table – Popular Oil Filters for Honda Rancher 420
| Attribute | Honda 15412-HM5-A10 | FRAM CH6015 | HiFloFiltro HF112 | K&N KN-112 |
|---|---|---|---|---|
| Filtration Efficiency | OEM standard | ~95% >20µm | ~95% >20µm | High-flow, ~99% |
| Gaskets/O-Rings Included | Yes | Yes | Yes | Yes |
| Bypass Valve | Yes | 18-22 psi | Yes | Yes |
| Filter Media | OEM cellulose/syn | Cellulose/syn | Synthetic/cell | Synthetic |
| Fitment (Years) | 2007–2023 | 2007–present | 2007–present | 2007–2022 |
| Service Interval | 100 hrs/6 months | Up to 10,000 mi (car equiv.) | 100 hrs/6 months | 100 hrs/6 months |
| Price Range | $$ | $ | $-$$ | $$ |
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Conclusion
Selecting the right oil filter part number for your Honda Rancher 420 is essential to reliable performance, engine longevity, and peace of mind. Stick to either genuine Honda OEM part numbers (like 15412-HM5-A10 or 15412-HP7-A01) or reputable aftermarket brands that specifically list your model and year. Regular oil and filter changes, along with careful installation, will keep your ATV performing at its best season after season. Remember to check your owner’s manual or a professional if ever in doubt about fitment, capacity, or specifications.
FAQ
-
What is the OEM oil filter part number for Honda Rancher 420?
The OEM Honda oil filter part number for most Honda Rancher 420 models is 15412-HM5-A10. Some newer models may use 15412-HP7-A01, so always double-check your specific model year. -
Can I use aftermarket oil filters instead of OEM for my Rancher 420?
Yes, aftermarket options from brands like FRAM (CH6015), K&N (KN-112), and HiFloFiltro (HF112) are designed to meet or exceed OEM filtration standards and are widely used as reliable alternatives. -
How often should I change the oil filter on a Honda Rancher 420?
Change the oil filter every time you perform an oil change. Honda recommends this service every 100 operating hours or 6 months—whichever comes first—for optimal engine health. -
What kind of oil should I use with my Rancher 420 oil filter?
Use a high-quality motorcycle/ATV oil such as 10W-30 or 10W-40 that meets or exceeds Honda’s specifications. Oils should carry the API SG or higher rating and preferably JASO MA certification for wet clutches. -
How much oil do I add after changing the filter?
The oil capacity is approximately 1.85 quarts (1.75 liters) after changing the oil filter. Always check the dipstick after refilling and topping up as necessary. -
Do aftermarket oil filters affect my warranty?
Using a quality aftermarket oil filter that meets OEM specifications typically does not void your warranty. However, always retain proof of purchase and maintenance records to protect your coverage. -
What comes in an oil change kit for the Honda Rancher 420?
Oil change kits often include the correct oil filter (OEM or compatible aftermarket), 2-3 quarts of suitable engine oil, and sometimes a new drain plug washer and O-rings/gaskets. -
How do I know if the oil filter fits my specific Rancher 420 model?
Check the filter manufacturer’s fitment guide, cross-reference your model year and trim (e.g., TRX420FA, FM, TM), and verify part numbers before purchase. -
What are the risks of using a poor-quality oil filter?
Low-quality or incorrect filters may allow harmful debris into the engine, cause oil leaks, or restrict oil flow. Over time, this can lead to accelerated engine wear or even catastrophic failure. -
Are there signs my oil filter needs immediate replacement?
Look for low oil pressure, dirty oil, or leaks around the filter area. If you notice any of these symptoms, replace the oil filter (and oil) promptly to protect your engine.