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Fuel Filter P551428 WK8146 BF7682-D Parameter: |
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| Part Number | P551428 WK8146 BF7682-D |
| Brand | Tamfiney |
| Weight | 486g |
| Height | 197 mm |
| Outer Diameter | 83 mm |
| Inner Diameter/ Thread Size |
mm |
| Minimum Order | 100 PCS |
| Place of Region: | Zhejiang, China |
| Payment Terms: | T/T |
| Price Terms: | FOB |
| Lead Time: | 30 to 50 days based on order quantities |
| Market Type: | After Market |
| Current Export Market: | Southeast Asian,North America, South America, Western Europe, Eastern Europe, Africa, Oceania |
Applications:
• CLARKE FIRE JW6H-UF30JW6H-UF38JW6H-UF40JW6H-UF48JW6H-UF50JW6H-UF58JW6H-UF60JW6H-UFH8
TIMBCO EX 10
Professional Fuel Water Filter Separator P551428 WK8146 BF7682-D
Q: How often should I change the water separator?
There is no absolute standard for the replacement cycle of fuel water separators. Generally, the replacement cycle is:
• Normal situation: Replace it every 10000 kilometers or so.
• Combined with maintenance cycle: Many suggestions suggest replacing the fuel water separator every time when you change oil filter (usually 8000-10000 kilometers) to ensure the cleanliness of the fuel and lubrication systems simultaneously.
Key factors affecting replacement cycle
• Fuel quality:
Using high-quality fuel (with low impurities and moisture): can extend up to 12000 to 15000 kilometers.
Frequent use of inferior fuel: It is shorten it to 8000 kilometers or even shorter.
• Operating environment:
Coastal, humid or dusty areas: It is recommended to replace it after 8000-9000 kilometers.
The risk of wax deposition is high in the north due to heavy sandstorms or low temperatures: you should replace appropriately in advance.
• Vehicle usage frequency and intensity:
High frequency use of taxis, ride hailing services, etc.: You can replace them after 8000-10000 kilometers.
Low frequency use of private cars: Even if the mileage has not to reach, you need to check at least once a year.
Q: What happens if pre-filter fuel flow is blocked?
If the pre filter fuel flow is blocked, it will cause the fuel to be unable to be delivered to the engine properly, resulting in a series of abnormal operation and even the vehicle cannot be driven. According to authoritative automotive technology data, the main impacts include:
• Difficulty or inability to start the engine: Fuel cannot reach the combustion chamber, spark plugs cannot ignite the mixture, resulting in multiple ignition failures or complete inability to start.
• Significant decrease in power performance: insufficient fuel supply during driving, slow acceleration, weak climbing ability, and no response when stepping on the accelerator.
• Unstable idling or engine stalling: During idling, the fuel supply is unstable, the engine shakes significantly, and in severe cases, it automatically stalls.
Abnormal increase in fuel consumption: In order to maintain power, the engine control unit may increase fuel injection, but due to insufficient combustion, actual efficiency decreases and fuel consumption increases.
• Excessive exhaust emissions: The mixture is too lean or the combustion is incomplete, resulting in an increase in emissions of hydrocarbons (HC), carbon monoxide (CO), and other substances.
• Risk of damage to fuel system components: Long term high-pressure operation of the fuel pump may cause overheating and damage; Fuel injectors are prone to clogging due to impurities or unstable fuel supply.
• Fault light on: If the engine control unit detects an abnormality in the fuel system (such as low oil pressure or abnormal air-fuel ratio), it will trigger the fault warning light.
⚠️Suggestion: Once the above symptoms occur, the fuel pre filtration device should be checked as soon as possible. External filters are generally recommended to be replaced every 30000 kilometers, while internal filters can be extended to 60000 kilometers. Please refer to the vehicle manual and adjust according to fuel quality and road conditions.
Q: How long does a pre filter last?
It is generally recommended to replace it every 20,000 to 40,000 kilometers.
If using low-quality fuel or frequently driving in harsh conditions such as congestion or strong winds and sand, it is recommended to reduce the interval to 10,000 to 20,000 kilometers.
If the oil quality is superior (such as refueling at regular stations like Sinopec or CNPC for extended periods), it can be extended to 30,000 to 40,000 kilometers.
Generally has a long lifespan, recommended to replace every 60,000 to 100,000 kilometers.
Some models even claim to be "maintenance-free for life," but in practice, inspections or replacements are still recommended no more than 100,000 kilometers.
Frequent traffic congestion and repeated starts and stops → accelerate impurity accumulation, requiring early replacement.
Using low-quality gasoline → high impurity content, recommend replacement every 20,000 to 30,000 kilometers.
Using fuel additives → can appropriately extend the replacement cycle.




