Wholesale High Quality with Competitive Price Air Filter AF25121 AF25122 P785390

Quick Details

Type:Air filter
OEM NO:AF25121  AF25122
Overall Length 1:526 mm (20.709 inch)
Largest OD 1:283 mm (11.142 inch)
Largest ID 1:150.38 mm (5.92 inch)
Material:Filter Paper + PU
Overall Length 2:461 mm (18.15 inch)
Largest OD 2:141.77 mm (5.581 inch)
Largest ID 2:105.6 mm (4.157 inch)
MOQ:24 Sets
Year:Universal
Model:Universal
Car Fitment:Universal
Engine:Universal
Place of Origin:CN;HUB
OE NO.:P785390 X770691
OE NO.:P785390
OE NO.:X770691
OE NO.:AF25121
OE NO.:AF25122
OE NO.:AF25121 AF25122
Size:Standard
Warranty:1 Year
Car Model:Tractor, Truck, ect.

Common sense of each part of the filter element

All filters are to protect the engine parts, clean, prolong the service life of the engine, from the surface of various filters and the length of time the filter is used, it is not correct to judge whether the filter is good or bad, and the real filter is judged. Whether the quality is good or bad, we should first consider the following aspects:
1. Quality of filter paper
The filter paper of good quality and the filter paper of poor quality are similar on the surface. Only when they are inspected by the inspection equipment of professional factory, there can be obvious differences. The quality of filter paper is related to the efficiency of the filter. There are more impurities, iron, and dust in the system. Poor quality filter paper filters less impurities, iron, and dust, which can not protect the engine, and the related parts of the engine are easy to wear.
2. The filtration efficiency of the filter
It is mainly determined by the quality of the filter paper used in the filter. The filtration efficiency of the filter is more than 96% to be regarded as a qualified product. During the starting and driving of the engine, the driver’s feeling of the engine and the smoke level of the vehicle’s exhaust gas are significantly different when the engine is repaired and the wear and tear of the parts is seen.
3. Adhesive material for filter paper and end cap
With good quality filter paper, there must also be a good quality adhesive. If the selection is not appropriate, the filter paper in the filter will not be firmly bonded to the upper and lower end caps. During use, the oil will easily fall off and be non-sticky, resulting in Short circuit, no filtering effect.
4. Guarantee of production process
From the surface, the filter paper cannot be adhered to the filter paper, and the light transmission must be seen under the light. If there is no light transmission under the light, the adhesion between the filter papers will affect the flow of the entire air filter cake, and the life is short, resulting in insufficient power and weakness, and it is difficult to remove dust during the cleaning process. A good air filter is non-adhesive between filter papers, has strong light transmittance, is suitable for engine air intake standards, has a long service life, and is easy to clean.
5. Process of air filter
Selecting high-quality materials to produce filters, the production process is the backing to ensure the quality of the products. There are many production links of the filter. How to ensure that the filter can protect and purify during use, as well as ensure the flow and ensure the normal operation of the engine, requires the process guarantee of each link of the production process.

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