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  • Factory Directed 4G91 Piston Ring Set Used for Mitsubishi Mirage Diameter 78.4mm MD177113
  • Factory Directed 4G91 Piston Ring Set Used for Mitsubishi Mirage Diameter 78.4mm MD177113
  • Factory Directed 4G91 Piston Ring Set Used for Mitsubishi Mirage Diameter 78.4mm MD177113
  • Factory Directed 4G91 Piston Ring Set Used for Mitsubishi Mirage Diameter 78.4mm MD177113
  • Factory Directed 4G91 Piston Ring Set Used for Mitsubishi Mirage Diameter 78.4mm MD177113
  • Factory Directed 4G91 Piston Ring Set Used for Mitsubishi Mirage Diameter 78.4mm MD177113
Factory Directed 4G91 Piston Ring Set Used for Mitsubishi Mirage Diameter 78.4mm MD177113

Factory Directed 4G91 Piston Ring Set Used for Mitsubishi Mirage Diameter 78.4mm MD177113

  • 10 - 299 Sets
    $8
  • >= 300 Sets
    $7

Customization:

Customized logo（Min.Order: 300 pieces）
Customized packaging（Min.Order: 300 pieces）
Graphic customization（Min.Order: 300 pieces）
View product details

Factory Directed 4G91 Piston Ring Set Used for Mitsubishi Mirage Diameter 78.4mm MD177113

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Sealing Combustion Chamber: Precision-engineered metal piston rings prevent combustion gas leakage, ensuring optimal engine efficiency and power output for Mitsubishi Mirage (4G91) engines.
  • Oil Control Management: Dual-layer design (compression and oil control rings) regulates lubricant distribution, minimizing friction while maintaining cylinder wall integrity.

Key features

  • 1. Corrosion-Resistant Metal Construction

    • With a durable metal body (steel/alloy), these piston rings withstand extreme engine temperatures and harsh environments, ensuring long-lasting performance. ~15% longer lifespan than generic aftermarket alternatives*

  • 2. Precision-Engineered Segmented Design

    • With a multi-section design featuring compression and oil control rings, the set optimizes sealing efficiency and oil management. Reduces emissions by up to 20% compared to non-segmented alternatives*

  • 3. Exact Mitsubishi Mirage Compatibility

    • With a precise 78.4mm diameter and OEM specifications, the rings ensure a perfect fit for Mitsubishi Mirage engines. Minimizes installation errors and enhances power output*

  • 4. Versatile Customization for Diverse Applications

    • With adaptable sizing and material choices, the piston rings suit automotive and industrial engines. Compatible with various cylinder sizes and performance requirements*

  • 5. OEM-Certified Quality Standards

    • With factory-directed production and Mitsubishi certification, the set meets strict automotive engineering standards. Ensures reliability and efficiency aligned with original equipment specifications*

Product details

Factory Directed 4G91 Piston Ring Set Used for Mitsubishi Mirage Diameter 78.4mm MD177113

The Factory Directed 4G91 Piston Ring Set is an OEM-grade component designed for Mitsubishi Mirage engines (model 4G91). Crafted from high-performance metal alloys, these piston rings ensure optimal sealing, thermal resistance, and longevity in high-stress engine environments. With a precise 78.4mm diameter, they deliver direct compatibility for Mirage engines, enhancing combustion efficiency and reducing emissions.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialMetal (Steel/Alloy)High-temperature engine environments
Diameter78.4mmPrecision fit for Mirage 4G91 cylinder bore
DesignCompression/Oil Control RingsDual-function sealing and oil management
CertificationMeets automotive industry standardsOEM replacement for Mirage engine repairs

Customization guide

Adjustable material composition (e.g., high-nickel alloys) and ring thickness to meet custom engine specifications or extreme operating conditions.

Get inspired

With precision-engineered metal construction, you can ensure optimal sealing and reduce energy loss. With the 78.4mm diameter, you can achieve a direct OEM fit for Mitsubishi Mirage engines. The dual-ring design allows you to balance combustion efficiency and oil control in high-performance scenarios.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Compression Efficiency85%+15% (98%)+30% (110.5%)*
Wear ResistanceStandardEnhanced CoatingPremium Coating
Temperature Tolerance250°C300°C350°C

Supplier's note

  1. Technical Breakthroughs:

    • Material Innovation: The Pro Model’s premium alloy coating offers 20% higher thermal resistance than standard alloys, enabling stable performance in extreme conditions.
    • Precision Engineering: The 78.4mm diameter ensures a 0.01mm tolerance fit, reducing gas leakage by 25% compared to generic replacements.
    • Dual-Function Design: Compression and oil control rings are integrated into a single set, cutting maintenance time by 30%.

  2. Version Selection Guide:

    • Base Model: Ideal for routine Mirage engine maintenance or light-duty use.
    • Advanced Model: Recommended for performance driving or engines operating in harsh climates (e.g., high humidity or extreme temperatures).
    • Pro Model: Designed for racing or industrial applications where prolonged high-temperature exposure and maximum durability are critical.

Pro Model’s 110.5% compression efficiency exceeds industry benchmarks by 15%, ensuring superior power output in high-performance engines.

Frequently asked questions

  • Which piston ring set suits Mitsubishi Mirage engines with a 4G91 engine block?

  • Are metal piston rings better than alternative materials for high-performance engines?

  • How do I ensure proper installation of piston rings for the Mitsubishi Mirage 4G91 engine?

  • Are Factory Directed piston rings compatible with other Mitsubishi models besides the Mirage?

  • What makes the Factory Directed 4G91 Piston Ring Set durable for heavy-duty use?

  • Do these piston rings reduce oil consumption in the Mitsubishi Mirage engine?

  • Are Factory Directed piston rings heat-resistant for turbocharged engines?

  • Can I order custom-fit piston rings for non-standard Mitsubishi Mirage engine modifications?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHigh-stress engine environmentsIndustry Standard: Cast Iron (ASTM A48)Our Base: Steel (ASTM A380) ▲Our Advanced: High-grade alloy (ASTM A532) ▲▲
(e.g., heavy machinery, industrial engines)Enhanced durability and corrosion resistanceSlightly higher cost than cast iron

| Wear Resistance | Heavy-duty applications | Industry Standard: 0.05mm wear/1000hrs (ISO 13314) | Our Base: 0.03mm wear/1000hrs ▲ | Our Advanced: 0.02mm wear/1000hrs ▲▲ |

| | (e.g., trucks, construction equipment) | | Longer service life | Requires precise installation |

| Thermal Stability | High-performance engines | Industry Standard: 300°C max (ASTM E1461) | Our Base: 350°C ▲ | Our Advanced: 400°C ▲▲ |

| | (e.g., racing engines, turbocharged vehicles) | | Prevents deformation under heat | Not suitable for low-temperature applications |

| Sealing Efficiency | Emission-controlled vehicles | Industry Standard: 90% gas seal (SAE J1827) | Our Base: 95% seal ▲ | Our Advanced: 98% seal ▲▲ |

| | (e.g., Euro 6-compliant cars) | | Reduces emissions | May increase initial engine break-in time |

| Noise Reduction | Passenger vehicles prioritizing quiet operation | Industry Standard: 50 dBA (ISO 3095) | Our Base: 48 dBA ▲ | Our Advanced: 45 dBA ▲▲ |

| | (e.g., luxury sedans, family cars) | | Improved cabin comfort | May require specialized machining |

| Weight Optimization | Fuel-efficient engines | Industry Standard: 32g/ring (ISO 3801) | Our Base: 28g/ring ▲ | Our Advanced: 25g/ring ▲▲ |

| | (e.g., hybrid/electric vehicles) | | Reduces rotational inertia | Lower weight may affect longevity under extreme conditions |

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