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  • Factory Engine Valve Stem Oil Seals Valve Oil Seal for BMW N47 N57 B47 B57 B38 B48 B58 Fluorine Rubber
  • Factory Engine Valve Stem Oil Seals Valve Oil Seal for BMW N47 N57 B47 B57 B38 B48 B58 Fluorine Rubber
  • Factory Engine Valve Stem Oil Seals Valve Oil Seal for BMW N47 N57 B47 B57 B38 B48 B58 Fluorine Rubber
  • Factory Engine Valve Stem Oil Seals Valve Oil Seal for BMW N47 N57 B47 B57 B38 B48 B58 Fluorine Rubber
  • Factory Engine Valve Stem Oil Seals Valve Oil Seal for BMW N47 N57 B47 B57 B38 B48 B58 Fluorine Rubber
  • Factory Engine Valve Stem Oil Seals Valve Oil Seal for BMW N47 N57 B47 B57 B38 B48 B58 Fluorine Rubber
Factory Engine Valve Stem Oil Seals Valve Oil Seal for BMW N47 N57 B47 B57 B38 B48 B58 Fluorine Rubber
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Factory Engine Valve Stem Oil Seals Valve Oil Seal for BMW N47 N57 B47 B57 B38 B48 B58 Fluorine Rubber

  • 1 - 599 Pieces
    $0.45
  • 600 - 999 Pieces
    $0.30
  • 1000 - 19999 Pieces
    $0.20
  • >= 20000 Pieces
    $0.10

Customization:

Customized logo（Min.Order: 600 pieces）
Customized packaging（Min.Order: 600 pieces）
Graphic customization（Min.Order: 600 pieces）
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Factory Engine Valve Stem Oil Seals Valve Oil Seal for BMW N47 N57 B47 B57 B38 B48 B58 Fluorine Rubber

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Sealing & Leak Prevention: Designed to seal the gap between the valve stem and valve guide in automotive engines, preventing oil leaks and maintaining engine integrity.
  • Extreme Condition Durability: Combines flexible rubber/silicone inner material for conformability with a durable metal outer ring to withstand high temperatures and pressures in engine environments.

Key features

  • 1. Material Technology

    • With a corrosion-resistant metal outer ring and heat-resistant silicone core, you can ensure long-lasting durability in high-temperature engine environments. Outperforms standard rubber seals by 30% in heat resistance [Disclaimer: Based on internal testing; actual results may vary].

  • 2. Design

    • With a precision-engineered conical shape, you can achieve a tighter seal, reducing oil leakage by up to 40% compared to flat seals. [Disclaimer: Leakage reduction based on simulated engine tests].

  • 3. Performance Parameters

    • Withstands extreme engine pressures and temperatures up to 180°C, allowing continuous operation without degradation. 2x longer lifespan under heavy-duty conditions than generic alternatives [Disclaimer: Lifespan claims depend on engine maintenance practices].

  • 4. Scenario Solutions

    • Designed specifically for Mercedes Benz M278 engines, you can ensure OEM-level performance and compatibility for both routine maintenance and high-performance driving scenarios. Direct-fit design eliminates the need for aftermarket modifications [Disclaimer: Compatibility verified for listed engine models only].

  • 5. Certification Standards

    • Certified to OEM quality standards, you can trust compliance with automotive safety and durability requirements, unlike unbranded aftermarket parts. [Disclaimer: Certification details subject to manufacturer confirmation].

Product details

Factory Engine Valve Stem Oil Seals Valve Oil Seal for BMW N47 N57 B47 B57 B38 B48 B58 Fluorine Rubber

The KUSIMA Factory Engine Valve Stem Oil Seal Gasket for Mercedes Benz M278 combines OEM-quality materials and precision engineering to prevent oil leaks and maintain engine performance. Designed with a conical shape and dual-material construction (flexible elastomer core and steel-reinforced outer ring), these seals withstand extreme temperatures and pressures, ensuring long-term durability. Customizable options allow tailored solutions for specific engine requirements.

Technical specifications

FeatureSpecificationBenefit
MaterialSilicone/rubber core + steel outer ringFlexible sealing with structural strength
DesignConical profileTight fit to valve stem and guide
Temperature Range-40°C to +200°CReliable performance in extreme conditions
Pressure Resistance35 MPaPrevents oil leakage under high pressure
CompatibilityMercedes Benz M278 (OEM fitment)Direct replacement for factory systems
CertificationOE-standard complianceGuaranteed quality for automotive use

Customization guide

Adjustable parameters include:

  • Material composition (e.g., silicone blend for heat resistance or fluoropolymer for chemical resistance)
  • Dimensions (custom inner/outer diameters for non-standard valve stems)
  • Shape profile (modified conical angles for specific engine geometries)

Get inspired

Ensure your engine runs smoothly with KUSIMA seals. Their dual-layer design prevents oil leaks, maintains lubrication efficiency, and extends engine lifespan. For engines with unique specifications, our customization options let you tailor seals to exact requirements.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material CompositionSilicone + steelSilicone + stainless steelFluoropolymer + titanium
Temperature Range-40°C to +200°C-50°C to +220°C-60°C to +250°C
Pressure Resistance35 MPa40 MPa (+14%)45.5 MPa (+30%)
CertificationOE-standardSAE J2064ISO 23934 + SAE J2064

Supplier's note

  1. Technical Breakthroughs:

    • Metal-reinforced outer ring: Enhances structural integrity under high engine pressures.
    • Conical design: Reduces friction while maintaining a tight seal for optimal oil retention.
    • OE-grade silicone blend: Outperforms generic seals by resisting thermal degradation for 50% longer service life.

  2. Version Selection Guide:

    • Base Model: Ideal for standard M278 engines requiring OEM-level reliability.
    • Advanced Model: Choose for high-performance engines (e.g., turbocharged) needing 14% higher pressure resistance.
    • Pro Model: Best for extreme environments (e.g., racing or heavy-duty trucks) with +30% pressure tolerance and +50°C higher heat resistance than industry benchmarks. With fluoropolymer material, you can withstand corrosive fluids while maintaining seal integrity. Pair its titanium outer ring with high-torque engines to eliminate deformation risks.

Frequently asked questions

  • Which engine valve seal suits high-performance Mercedes Benz M278 engines?

  • How to properly install KUSIMA valve stem oil seals to prevent oil leaks?

  • Rubber vs Metal in valve seals: Why does KUSIMA use both for M278 engines?

  • Can KUSIMA valve seals be customized for non-M278 engines?

  • Are KUSIMA M278 valve seals OEM-certified for Mercedes Benz?

  • What makes KUSIMA valve seals durable under extreme engine conditions?

  • How often should I replace KUSIMA engine valve stem seals for optimal performance?

  • Do KUSIMA seals prevent oil leaks in both intake and exhaust valves?

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The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.