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SINOTRUK HOWO TX7 Fuel Pipe 202V12304-5877 suitable FOR MAN MC11 ENGINE
The diesel low-pressure fuel supply line connects the fuel transfer pump to the fuel filter, ensuring stable fuel delivery and preventing leaks or air ingress into the system.
FUNCTION
1. Fuel Delivery Channel:This serves as a critical component of the low-pressure fuel line, specifically tasked with conveying diesel-pumped by the fuel transfer pump-to the fuel filter. It ensures that, after being initially pressurized by either the fuel tank's auxiliary circuit or the main pump, the fuel flows smoothly into the filter for purification.
2. Maintaining Fuel System Pressure and Continuous Supply: In the MC11 diesel engine, the transfer pump generates the initial pressure; this line then transmits the fuel stably to the filter, thereby preventing pressure fluctuations or interruptions. After passing through the filter, the fuel proceeds to the high-pressure pump for distribution to the fuel injectors.
3. Prevention of Air Intrusion and Leakage: The line features a sealed-joint design that effectively prevents air from infiltrating the system while simultaneously preventing diesel from leaking out.
4. Vibration Damping and Adaptability: Constructed from high-strength engineering plastic, the line possesses inherent flexibility that allows it to absorb vibrations generated during engine operation, as well as accommodate thermal expansion and contraction. This prevents the brittle fracture of rigid lines or the loosening of connections, making it ideally suited for the demanding, high-load, and long-haul operating conditions typical of heavy-duty trucks.
Placement within the Engine System
Upstream: Connects to the transfer pump outlet (the oil outlet port on the pump body).
Downstream: Connects to the fuel filter inlet (typically a port located on the top or side of the filter).
Overall System Flow: Fuel Tank → Pre-filter / Hand Primer Pump → Transfer Pump → This Fuel Line (202V12304-5877) → Fuel Filter → High-pressure Fuel Pump → Common Rail → Injectors.
Advantages
| No. | Advantage Category | Detailed Explanation |
|---|---|---|
| 1 | High Durability & Reliability | Made of high-strength engineering plastic (PA-based composite), excellent resistance to diesel/biodiesel corrosion, aging, and UV exposure; wide operating temperature range (-40°C to +120°C), ideal for extreme heavy-duty conditions (hot deserts or cold winters); resistant to cracking, deformation, or leakage; OEM-level strict quality control and 100% testing ensure low failure rate and long service life (far superior to standard rubber hoses). |
| 2 | Excellent Flexibility & Easy Installation | Approx. 15cm length with pre-formed bends, highly flexible for easy routing and replacement in tight engine compartments; perfectly matches original quick connectors (Quick connector), plug-and-play without modifications or special tools; effectively absorbs engine vibrations and thermal expansion/contraction, reducing the risk of loose connections or breakage. |
| 3 | Efficient & Stable Fuel Delivery | Provides consistent, uninterrupted low-pressure fuel flow from transfer pump to filter, preventing pressure fluctuations or interruptions; superior sealing prevents air ingress into the system, significantly reducing issues like hard starting, rough idle, power loss, or black smoke; indirectly improves combustion efficiency, lowers fuel consumption and emissions, and supports high reliability in heavy-load/high-speed conditions on MC11 engines (especially SITRAK models). |
| 4 | Superior to Traditional Metal/Rubber Pipes | Lighter weight (30-50% lighter than metal pipes), contributing to vehicle weight reduction and better fuel economy; much better corrosion resistance than rubber (no easy aging/cracking); extremely low leakage risk for enhanced safety and environmental protection (fewer fire hazards and fuel waste); OEM quality at an affordable price (typically $6-25), offering outstanding cost-performance and lower long-term maintenance costs. |
DETAILS
| DESCRIPTION | Fuel Pipe | PART NUMBER | 202V12304-5877 |
| WEIGHT |
0.5KG |
VOLUME |
80×50×50 cm |
| TRUCK MOLDE | SINOTRUK | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
Periodic Inspection and Maintenance Recommendations
1. Inspection Frequency: Every 5,000–10,000 km or every 3–6 months; inspect this line during routine or intermediate maintenance services.
2. Inspection Scope: Visually inspect the exterior for cracks, signs of aging, bulging, or traces of fuel leakage. Check the quick connectors to ensure they are not loose, verify that the retaining clips are intact, and inspect the sealing rings for deformation or hardening. After starting the engine, observe the line for any signs of diesel dripping or dampness; ensure the line is free from excessive bending, abrasion, or contact with heat sources or sharp components.
3. Preventive Maintenance: Keep the fuel system clean, replace the fuel filter regularly, and use high-quality diesel fuel. Prevent water or impurities from entering the system. Avoid exposure to extreme heat or contact with chemicals; whenever possible, park in the shade to prevent accelerated aging of the plastic materials. In low-temperature conditions, check the line's flexibility to prevent brittle fracture.
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