7C-0307 7C0307 Fiber Cork Composite Gasket Kit for Heavy Articulated Truck Engine Cooling System Maintenance PR-750B PM-565B

1. Quick Details of  seal 7C-0307:

2. 7C-0307 picture:

3. Service part number :

4. FAQ

Q: Which heavy articulated trucks and supporting engines can this 7C-0307 gasket match, and where is it installed?
A: This gasket set fits mainstream articulated dump trucks and supporting 3406/3408/3412 series industrial engines, installed at the connecting flange of engine cooling water pipes. It undertakes the sealing work of cooling liquid circulation channels, and contains all matching small rubber sealing rings needed for pipe disassembly and maintenance.

Q: Why choose fiber cork composite material with silicone coating for this cooling system gasket?
A: Construction vehicles work outdoors all year round with frequent temperature shifts and bumpy vibration. Fiber cork composite has soft texture and great compression recovery, it will not harden after long-term bolt compression. The outer silicone coating blocks coolant corrosion and prevents liquid seepage. Matching NBR rubber rings handle small auxiliary sealing points, balancing sealing stability and long service life.

Q: What color and structural features do these gaskets have?
A: The main flat gasket is dark gray, with two symmetrical mounting holes and integrated red silicone sealing strips on the inner ring. The surface texture is uniform without loose particles, and the overall thickness is controlled at 0.8mm. All supporting NBR sealing rings are pure black with smooth round surfaces, and different sizes are easy to distinguish during installation.

Q: What temperature range can this gasket kit adapt to?
A: The fiber cork main gasket works steadily from -30°C to +120°C, and NBR rubber rings support -28°C to +105°C. It can adapt to low-temperature outdoor construction in winter and long-hour high-load operation in summer without swelling or cracking failure.

Q: What negative impacts will low-quality gaskets bring to vehicle cooling systems?
A: Cheap gaskets use loose recycled fiber without silicone coating. They will absorb coolant and swell rapidly, leading to continuous water leakage at pipe joints. Serious water loss will cause engine overheating, accelerate internal component wear, and bring extra coolant consumption and long equipment shutdown losses.

Q: What key installation steps should operators follow to extend gasket service life?
A: First, fully clean the pipe flange surface to wipe off old gasket residues and rust spots. Second, lay the gasket flat without folding or offsetting, the silicone sealing strip faces the coolant side. Third, tighten fixing bolts crosswise in two batches to avoid partial extrusion damage. Do not apply thick sealant to prevent pipeline blockage.

5. Exhibition and Wearhous

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