Looking for a high-performance primary air filter to protect your heavy-duty engine? The AF25497 (also referred to as AF2549700) is an essential filtration component designed for maximum dust-holding capacity and engine longevity. Whether you are performing a routine engine overhaul or a full maintenance schedule, using an OEM-standard filter ensures your equipment stays in peak condition.
Chat on WhatsApp: +86 13532379052 Email: [email protected] Follow our Latest Stock on FacebookBelow is the detailed specification for this filter element. We ensure all parts meet or exceed OEM Standard Replacement requirements.
| Model NO. | AF25497 / AF2549700 | Product Name | Air Filter (Primary) |
|---|---|---|---|
| Part Number | AF25497 (AF2549700) | Type | Round Air Filter Element |
| Condition | Brand New, OEM Standard | MOQ | 1 Piece |
| Stock Status | In Stock / Fast Dispatch | Packaging | Industrial Export Packing |
| Outer Diameter | 165 mm | Overall Height | 350 mm |
| Application | Engine rebuild, maintenance | Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express: DHL, Fedex, EMS, UPS / Air / Sea Cargo | ||
This AF25497 air filter is widely used across various industrial and construction platforms. Verify your model below:
| Brand | Engine Series | Equipment Type |
|---|---|---|
| Cummins | 4BT / 6BT 5.9 / 6CT 8.3 | Excavators, Generators, Trucks |
| Komatsu | S6D102 / S6D107 | PC200-6, PC220-7 Excavators |
| Caterpillar | C-Series Engines | Industrial Power Units |
| Dongfeng | EQ Series | Heavy Duty Cargo Trucks |
Compare our OEM-standard parts against low-cost market alternatives to understand the value of quality filtration.
| Feature | Our OEM-Standard AF25497 | Generic Low-Cost Filters |
|---|---|---|
| Filter Media | High-density micro-glass / Synthetic blend | Low-grade cellulose paper |
| Filtration Efficiency | 99.9% Protection against micro-particles | Less than 85% efficiency |
| Seal Durability | Heat-resistant polyurethane gaskets | Recycled rubber (prone to cracking) |
| Service Life | 500 - 800 Working Hours | Less than 200 Hours |
| Structural Strength | Corrosion-resistant steel inner core | Plastic or thin mesh core |
| Engine Protection | Prevents cylinder liner and piston wear | High risk of dusting engine failure |
Q: My engine is blowing black smoke and losing power. Could it be the AF25497?
A: Yes. A clogged AF25497 air filter restricts airflow, leading to an incorrect fuel-to-air ratio. This causes incomplete combustion, resulting in black smoke and reduced torque. Replacing the filter element immediately restores engine efficiency.
Q: How often should I replace the AF2549700 air filter in dusty environments?
A: In high-dust construction sites (mining or excavation), we recommend checking the restriction indicator daily. Typically, the AF25497 should be replaced every 250-500 hours to prevent premature piston ring wear.
Q: Why Choose This Air Filter?
A: Our filter features an OEM-standard tri-metal structure in its reinforcement and is trusted by repair shops & equipment fleets worldwide for maintaining uptime and reducing long-term repair costs.
Not sure how this issue affects your equipment? Our team helps operators:
Identify potential risks during maintenance
Recommend suitable replacement parts if needed
Support both inspection advice and parts supply
Contact our technical team for a free assessment of your filtration needs.
We specialize in complete engine assemblies and high-precision spare parts for global brands including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. From heavy-duty mining to maritime power, we provide the components you need to keep moving.
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