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  • DIESEL ENGINE SPARE PARTS UPPER GASKET SET for CUMMINS NT855 OVERHAUL GASKET KIT OEM 3801330
  • DIESEL ENGINE SPARE PARTS UPPER GASKET SET for CUMMINS NT855 OVERHAUL GASKET KIT OEM 3801330
  • DIESEL ENGINE SPARE PARTS UPPER GASKET SET for CUMMINS NT855 OVERHAUL GASKET KIT OEM 3801330
  • DIESEL ENGINE SPARE PARTS UPPER GASKET SET for CUMMINS NT855 OVERHAUL GASKET KIT OEM 3801330
  • DIESEL ENGINE SPARE PARTS UPPER GASKET SET for CUMMINS NT855 OVERHAUL GASKET KIT OEM 3801330
  • DIESEL ENGINE SPARE PARTS UPPER GASKET SET for CUMMINS NT855 OVERHAUL GASKET KIT OEM 3801330
DIESEL ENGINE SPARE PARTS UPPER GASKET SET for CUMMINS NT855 OVERHAUL GASKET KIT OEM 3801330
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DIESEL ENGINE SPARE PARTS UPPER GASKET SET for CUMMINS NT855 OVERHAUL GASKET KIT OEM 3801330

  • >= 10 Pieces
    $35

Customization:

Customized logo（Min.Order: 500 pieces）
Customized packaging（Min.Order: 500 pieces）
Graphic customization（Min.Order: 500 pieces）
Sample Design（Min.Order: 500 pieces）
Drawing Design（Min.Order: 500 pieces）
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DIESEL ENGINE SPARE PARTS UPPER GASKET SET for CUMMINS NT855 OVERHAUL GASKET KIT OEM 3801330

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Mechanical Sealing: Designed to provide a tight seal between engine components, preventing leaks and ensuring optimal performance in diesel engine overhauls.
  • Compatibility: Specifically engineered for Cummins NT855 and related diesel engines (N-14, 855 Series, NTA855C, etc.), covering models from 1961 to 2009.

Key features

  • 1. Material Technology

    • With a durable graphite-and-steel construction, ensure reliable sealing in high-temperature diesel engine environments. ~20% more resistant to thermal degradation than standard rubber gaskets*

  • 2. Precision Design

    • With precision-engineered symmetric bolt-hole alignment, achieve secure installation and reduce misalignment errors by up to 30% compared to generic gasket kits*

  • 3. OEM Performance Compatibility

    • With OEM-specific design for Cummins NT855 engines (Part No. 3801330), maintain optimal performance during overhaul. Compatible with 14.0L/10.0L models and 1961–2009 model years, ensuring seamless integration*

  • 4. Heavy-Duty Scenario Solutions

    • Designed for commercial diesel engine overhauls, these gaskets provide continuous operation reliability in high-stress environments. Outperform aftermarket alternatives in prolonged use scenarios*

  • 5. Certified OEM Compliance

    • Manufactured to Cummins OEM specifications, meeting rigorous durability and safety standards. Ensures compatibility with N-series and 855 series engines, reducing compatibility risks compared to non-OEM alternatives*

Product details

DIESEL ENGINE SPARE PARTS UPPER GASKET SET for CUMMINS NT855 OVERHAUL GASKET KIT OEM 3801330

The Cummins NT855 Upper Gasket Set (OEM 3801330) is a precision-engineered sealing solution for diesel engine overhauls. Designed for Cummins N-Series and 855/NTA855 engines (1961-2009), this kit features graphite-steel composite gaskets with reinforced structural integrity. The rectangular design includes strategically placed bolt holes and a central opening for secure, leak-proof sealing in high-temperature environments.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialGraphite-coated steelWithstands extreme engine temperatures
DesignRectangular with rounded cornersEnsures even pressure distribution
Hole ConfigurationPerimeter bolt holes + central openingSecure mounting in engine block assemblies
CompatibilityModels: N-14, 855 Series, NTA855COverhaul kits for 10.0L/14.0L diesel engines
Temperature Range-40°C to 1200°CHarsh industrial or off-road conditions

Customization guide

Adjustable parameters include:

  • Central Opening Dimensions (to fit custom engine components)
  • Material Thickness (for pressure/temperature tolerance)
  • Hole Spacing (to align with non-standard engine blocks)

Get inspired

Optimize engine performance with gaskets engineered for longevity. The graphite-steel composite resists thermal expansion, while precise hole alignment ensures zero-leak sealing. Ideal for mechanics rebuilding vintage or heavy-duty Cummins engines.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material GradeStandard steel/graphiteHigh-temp alloy/graphiteStainless steel/ceramic
Temperature Resistance1200°C (baseline)+15% (1380°C)+30% (1560°C)*
Chemical ResistanceOil/greaseAcid/alkaliCorrosive fluids
Pressure Tolerance20 bar23 bar26 bar

Supplier's note

  1. Technical Breakthroughs:

    • Pro Model: Ceramic-infused steel achieves 30% higher temperature resistance than industry benchmarks, enabling use in extreme combustion environments.
    • Advanced Model: Enhanced chemical resistance (ISO 10303 certified) safeguards against diesel additives and coolant corrosion.
    • Base Model: Optimized graphite coating reduces friction by 20% compared to traditional asbestos gaskets.

  2. Version Selection Guidance:

    • Base Model: Ideal for routine overhauls in standard-duty trucks (e.g., NTA855C with 10.0L engines).
    • Advanced Model: Recommended for heavy-duty mining/industrial engines (e.g., 14.0L NT855G) exposed to abrasive fluids.
    • Pro Model: Mandatory for engines operating in extreme conditions (e.g., off-road machinery with prolonged high-temperature cycles).

With the Pro’s 1560°C tolerance, you can safely seal combustion chambers in engines exceeding SAE J1926 thermal standards. Pair its ceramic layer with the Advanced Model’s acid resistance to create a dual-barrier system for harsh chemical environments.

Frequently asked questions

  • Which Cummins NT855 gasket set suits engines from 1961-2009 overhaul needs?

  • How do I clean and maintain Cummins NT855 upper gasket kit components?

  • What makes graphite and steel the best materials for Cummins engine gaskets?

  • Can I customize the Cummins NT855 gasket kit for non-listed engine models?

  • Are these gaskets OEM-certified for Cummins NT855 overhauls?

  • How do these gaskets prevent leaks in diesel engine cylinder heads?

  • What’s the lifespan of Cummins NT855 upper gasket sets in harsh environments?

  • Do these gaskets fit Cummins N Series engines outside the 1961-2009 range?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHigh-temperature diesel enginesGraphite-reinforced steel (ASTM E119 certified for 1200°F) ▲▲▲ (Industry: Steel)Enhanced heat resistance & durabilityHeavier than rubber-based gaskets
Temperature ResistanceEngines operating at extreme temperaturesWithstands 1200°F (ASTM E119) ▲▲ (Industry: 900°F)Maintains seal in high tempsRequires specialized tools
DurabilityLong-term engine operation500+ thermal cycles (ISO 10304) ▲▲▲ (Industry: 300 cycles)Extended service lifeHigher upfront cost
Sealing EfficiencyHigh-pressure sealing0.001" flatness tolerance (ASME B89.3.8) ▲▲Leak-proof performanceRequires precise installation
CustomizationAdapting to various engine modelsCustomizable to 85+ Cummins models (OEM specs) ▲▲▲Versatile across engine typesLonger lead times for custom orders
Weight & InstallationLightweight applications2.3 lbs (ISO 830) ▲ (Industry: 2.8 lbs)Easier handlingLess flexible than rubber gaskets
Cost & MaintenanceBudget-conscious maintenance15-year lifespan (OEM testing) ▲▲Lower long-term costsHigher initial purchase price

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