Cummins engine parts Valve chamber cover gasket C5613916

Built to eliminate oil leakage from the valve chamber, this gasket features a 5-layer composite structure optimized for sealing performance. The core layer uses 304 stainless steel for structural rigidity, while the upper and lower layers are made of nitrile rubber (NBR) with a Shore hardness of 70±5—providing excellent elasticity to compensate for surface irregularities. A 0.5mm-thick graphite layer is sandwiched between the rubber and steel, enhancing oil resistance and reducing friction. The raised sealing beads (height 2mm) create line contact with the valve cover, generating 15% higher sealing pressure than flat gaskets. This design reduces oil leakage rate to ≤0.01L/min, far below the 0.1L/min industry limit, protecting the engine’s valve train and external components from oil contamination

Engineered to endure the harsh conditions of the valve chamber (high temperature, engine oil immersion), the gasket exhibits exceptional environmental resistance. The NBR rubber layers withstand continuous operating temperatures up to 150℃ and short-term peaks of 180℃ (during engine overheating), with no hardening or cracking. It is compatible with all types of diesel engine oils (mineral, semi-synthetic, fully synthetic), resisting swelling and degradation after 2000-hour immersion. The stainless steel core prevents thermal deformation, maintaining the gasket’s shape even under 500 thermal cycles (-40℃ to 140℃). Unlike single-layer rubber gaskets, it shows no shrinkage or brittleness, ensuring reliable sealing for ≥150,000km

The C5613916 gasket undergoes CNC precision machining to guarantee dimensional accuracy and long-term sealing stability. The bolt holes have a position tolerance of ±0.1mm, ensuring perfect alignment with the valve chamber cover and cylinder head mounting points. The sealing beads are molded with a uniform cross-section, providing consistent pressure distribution across the entire gasket surface. An anti-creep design—integrated steel inserts at bolt hole peripheries—prevents the gasket from deforming under long-term bolt clamping force (8-10N·m for M8 bolts). The gasket’s surface is treated with a low-friction coating, facilitating easy removal during maintenance without tearing or leaving residue on the valve cover

Optimized for efficient fleet maintenance, the valve chamber cover gasket features a user-friendly design. It comes pre-coated with a high-temperature adhesive (activated at 80℃), eliminating the need for additional sealants and ensuring immediate sealing after installation. The flexible yet rigid structure maintains shape during handling, avoiding folding or creasing that causes leakage. A single technician can replace the gasket in 90 minutes—40% faster than non-OE gaskets—using standard tools. Each unit undergoes 100% factory testing, including pressure testing (0.5MPa for 30 minutes) and dimensional inspection. Backed by a 1-year/100,000km warranty, it minimizes the risk of rework and oil-related engine damage, reducing long-term operational costs for fleet operators