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Sinotruk Genuine O-Ring MQ6-56333-3258 – High-Temperature Engine Seal for HOWO Trucks
Sinotruk OEM O-Ring (Part No: MQ6-56333-3258) is a viton-encapsulated seal designed for fuel injection systems in HOWO/T7H engines. Resistant to diesel, biodiesel, and extreme pressures.
▸ Technical Specifications:
Material: Viton FKM (Fluoroelastomer) with steel core
Pressure Rating: 150 bar (static), 100 bar (dynamic)
Compliance: ISO 3601-1 Class A
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Clean groove surfaces with isopropyl alcohol
Lubricate with silicone grease (Dow Corning 111 recommended)
Avoid twisting during placement
Pressure-test system before full operation
