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  • OUSIMA Excavator Starting Relay Engine Kill Switch 7y3918 for CAT
  • OUSIMA Excavator Starting Relay Engine Kill Switch 7y3918 for CAT
  • OUSIMA Excavator Starting Relay Engine Kill Switch 7y3918 for CAT
  • OUSIMA Excavator Starting Relay Engine Kill Switch 7y3918 for CAT
  • OUSIMA Excavator Starting Relay Engine Kill Switch 7y3918 for CAT
OUSIMA Excavator Starting Relay Engine Kill Switch 7y3918 for CAT

OUSIMA Excavator Starting Relay Engine Kill Switch 7y3918 for CAT

  • 1 - 9 Pieces
    $10
  • 10 - 199 Pieces
    $8
  • >= 200 Pieces
    $5
View product details

OUSIMA Excavator Starting Relay Engine Kill Switch 7y3918 for CAT

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Engine Starting & Control: A hydraulic ignition switch designed to start and manage the electrical systems of heavy machinery, enabling engine ignition, power distribution, and emergency shutdown via the kill switch function.
  • Compatibility: Specifically engineered for Caterpillar (CAT) excavators, featuring the part number 7Y-3918 to ensure precise fitment and functionality with CAT machinery.

Key features

  • 1. Corrosion-Resistant Metal Construction

    • With a corrosion-resistant metal body, you can ensure long-lasting durability in harsh construction environments. The robust design outperforms plastic alternatives*, providing reliable performance even in wet or dusty conditions.

  • 2. Intuitive Key-Operated Interface

    • With an ergonomic key-operated mechanism, you can easily control engine start/stop and electrical systems. The Caterpillar-specific design ensures seamless integration with CAT machinery, reducing installation complexity compared to generic switches*.

  • 3. Hydraulic Performance for Heavy-Duty Use

    • With a hydraulic activation system, you can achieve smooth and reliable engine startup under high-pressure conditions. This design maintains consistent performance across diverse excavator models*, enhancing operational efficiency.

  • 4. Genuine Caterpillar Compatibility

    • Designed specifically for Caterpillar excavators, this switch ensures perfect fitment and compatibility with CAT machinery. Its dedicated part number (7Y-3918) guarantees optimized functionality for CAT vehicles*, avoiding compatibility issues common with aftermarket parts*.

  • 5. RoHS-Certified Environmental Compliance

    • With RoHS certification, you can meet strict environmental standards by minimizing exposure to harmful substances. This certification ensures safer disposal and use compared to non-compliant alternatives*.

Product details

OUSIMA Excavator Starting Relay Engine Kill Switch 7y3918 for CAT

The OUSIMA Excavator Starting Relay Engine Kill Switch 7y3918 for CAT is a genuine Caterpillar-compatible component designed for reliable engine control in construction machinery. Crafted with a focus on durability and compliance, this hydraulic switch ensures seamless integration into Caterpillar excavators, offering a 1-year shelf life and RoHS certification for environmental safety.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialWood (packaging) / MetalEnsures secure storage during transit
CertificationRoHS compliantMeets global environmental and safety standards
CompatibilityCaterpillar excavatorsDirect fit for CAT machinery maintenance
TypeHydraulic relay switchControls engine start/stop and electrical systems
Shelf Life1 yearOptimal storage duration under standard conditions

Customization guide

Adjustable parameters include material composition (e.g., metal core for enhanced durability) and terminal configuration to meet specific hydraulic pressure requirements. Customize the part number (e.g., 7Y-3918 variants) for precise fitment across Caterpillar models.

Get inspired

With its rugged design and hydraulic precision, this switch is ideal for heavy-duty excavator operations. Whether starting engines in harsh environments or ensuring fail-safe shutdowns, the OUSIMA switch combines reliability with Caterpillar-grade engineering.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
DurabilityIndustrial-grade+20% corrosion resistanceMilitary-spec alloy
Hydraulic Pressure500 psi650 psi800 psi
CertificationRoHSRoHS + ISO 16949RoHS + ISO 16949 + IP67

Supplier's note

  1. Three Technical Breakthroughs:

    • RoHS Compliance: Ensures no hazardous materials, aligning with global regulations.
    • Hydraulic Efficiency: The Pro Model’s 800 psi rating outperforms industry benchmarks by 30%.
    • Corrosion Resistance: Advanced Model’s +20% protection extends lifespan in wet/dusty environments.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard excavator maintenance with basic durability needs.
    • Advanced Model: Recommended for frequent off-road use, where corrosion resistance is critical.
    • Pro Model: Best for heavy-duty operations requiring extreme pressure tolerance and IP67 water/dust sealing.

With the Pro Model’s IP67 rating, you can operate in extreme weather without risking system failure. Pair its high-pressure hydraulic design with Caterpillar’s engine specs to ensure uninterrupted performance.

Frequently asked questions

  • Which OUSIMA ignition switch is compatible with CAT excavators?

  • How do I install the OUSIMA 7Y-3918 ignition switch?

  • Is the OUSIMA ignition switch RoHS certified?

  • What is the shelf life of the OUSIMA ignition switch?

  • Can the OUSIMA 7Y-3918 be used with non-CAT machinery?

  • Why is the OUSIMA ignition switch made of metal?

  • How do I maintain the OUSIMA ignition switch?

  • Is the OUSIMA ignition switch suitable for heavy-duty use?

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