Cummins engine spare parts Thermostat housing sealing gasket C3101054

Crafted from a premium rubber-cork composite material (60% nitrile rubber, 40% high-density cork), the gasket delivers exceptional sealing performance tailored to the high-temperature, high-pressure environment of engine cooling systems. The nitrile rubber component provides excellent elasticity (elongation at break ≥300%) and compression recovery (≥85% after 24 hours of 20% compression), ensuring a tight seal even as the thermostat housing expands and contracts with temperature fluctuations (from -40°C to 130°C). The cork reinforcement enhances dimensional stability and resistance to coolant absorption (weight gain ≤5% after 72 hours of immersion in ethylene glycol coolant), preventing gasket swelling or shrinkage that leads to leaks. Compared to standard paper gaskets, this composite material reduces coolant leakage rates by 90% and maintains sealing integrity for up to 150,000 km of operation

Engineered to withstand the harsh conditions of engine cooling systems—exposure to high-temperature coolant, corrosion from additives, and thermal cycling—the gasket features robust resistance properties:

Heat Resistance: The rubber-cork composite retains 90% of its elasticity at 130°C (the maximum operating temperature of Cummins X15 engine cooling systems) and does not harden or crack even after 1,000 thermal cycles (from -40°C to 130°C).

Chemical Resistance: It is compatible with all Cummins-approved coolants, including ethylene glycol, propylene glycol, and extended-life coolant (ELC), with no degradation or material breakdown after 500 hours of exposure.

Oil Resistance: The nitrile rubber component resists contamination from engine oil (common in gasket mating surfaces), preventing swelling or adhesion to the thermostat housing—ensuring easy removal during future maintenance

The gasket is designed to maintain a pressure-tight seal under the typical operating pressures of Cummins engine cooling systems (up to 15 psi):

Uniform Compression: The 3mm thickness and consistent density (0.9 g/cm³) of the rubber-cork composite ensure even compression across the entire mating surface when torqued to Cummins’ specified 25 N·m (for M10 bolts), eliminating gaps that cause pressure leaks.

Bolt Hole Reinforcement: Each pre-punched bolt hole is reinforced with a 2mm-wide rubber ring, preventing coolant seepage around the bolt threads—a common leak point in unreinforced gaskets.

Edge Sealing: The gasket’s outer edge features a 1mm-tall rubber bead that creates a secondary seal against the thermostat housing, providing extra protection against minor surface irregularities on the engine block.

By maintaining system pressure, the gasket ensures optimal coolant flow through the radiator and engine block, preventing overheating and preserving engine efficiency (a 10% pressure drop can reduce cooling efficiency by 15%)

Designed for hassle-free installation by engine technicians, the gasket simplifies maintenance with user-friendly features:

No Adhesive Required: The rubber-cork composite’s natural tackiness holds the gasket in place on the thermostat housing during installation, eliminating the need for messy adhesives or sealants (which can clog coolant passages if overapplied).

Clear Identification: The gasket is laser-marked with the part number (C3101054) and Cummins logo, ensuring easy identification and preventing mix-ups with similar gaskets for other engine models.

Easy Removal: The composite material does not adhere permanently to the mating surfaces, allowing the gasket to be removed cleanly during thermostat replacement—reducing labor time by 30% compared to adhesive-backed gaskets.

Installation takes 15–20 minutes: clean the thermostat housing and engine block mating surfaces, position the gasket (aligning bolt holes), place the thermostat housing, torque the bolts to specification, and refill the cooling system. Each unit undergoes 100% inspection, including thickness measurement, density testing, and leak simulation, backed by a 12-month OEM warranty against defects (e.g., tearing, compression set, coolant leakage)