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  • High Performance Starter Motor 4974389 for Construction Machinery
  • High Performance Starter Motor 4974389 for Construction Machinery
  • High Performance Starter Motor 4974389 for Construction Machinery
  • High Performance Starter Motor 4974389 for Construction Machinery
High Performance Starter Motor 4974389 for Construction Machinery
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High Performance Starter Motor 4974389 for Construction Machinery

  • >= 2 Pieces
    $150

Customization:

Customized logo（Min.Order: 500 pieces）
Customized packaging（Min.Order: 500 pieces）
Graphic customization（Min.Order: 500 pieces）
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High Performance Starter Motor 4974389 for Construction Machinery

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Torque Power Delivery: Designed to handle heavy-duty starting loads, particularly for diesel engines in construction machinery, ensuring reliable ignition under demanding conditions.
  • Universal Compatibility: Engineered with a universal fitment (car make: universal) to adapt to various engine types and specifications, simplifying installation across different vehicle models.

Key features

  • 1. Durable Material Construction

    • With a corrosion-resistant aluminum housing and high-strength steel internal components, ensure longevity in harsh construction environments. Outperforms models with plastic components in durability and heat resistance*.

  • 2. Universal Compatibility Design

    • With a modular design engineered for universal fitment, easily install and adapt to multiple construction machinery types, eliminating the need for custom parts*.

  • 3. High-Torque Performance

    • With a robust solenoid and optimized gear system, deliver 30% higher starting torque compared to standard starters, ideal for diesel engines in heavy machinery*.

  • 4. Reliable Heavy-Duty Operation

    • Designed for continuous commercial use in construction settings, withstand extreme vibrations and frequent starts without compromising reliability*.

  • 5. Industry-Standard Compliance

    • Manufactured to meet automotive industry safety and performance standards, ensuring compatibility with global machinery specifications*.

Product details

High Performance Starter Motor 4974389 for Construction Machinery

The High Performance Starter Motor 4974389 is a robust, universal automotive starter designed for heavy-duty construction machinery. Built with a combination of aluminum and steel, it delivers exceptional durability and thermal resistance. Its high-torque solenoid and optimized electrical system ensure reliable engine starts in demanding environments.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialAluminum housing, steel internal partsWithstands vibration and corrosion in harsh conditions
Torque Capacity25 Nm (diesel engine optimized)Starting large diesel engines in construction machinery
Voltage Rating12V-24V adaptableUniversal compatibility with industrial equipment
Solenoid Efficiency98% current transfer efficiencyReduces energy loss during rapid engine starts
Lifespan50,000 cycles (industry standard: 30,000)Long-term reliability in heavy-duty operations

Customization guide

Adjustable parameters include voltage rating (12V-24V) and mounting brackets to fit diverse engine configurations. Customize torque output (±10%) to match specific diesel engine requirements.

Get inspired

Engineers and mechanics rely on this starter motor for its unmatched reliability in extreme conditions. Its compact design and universal compatibility make it ideal for retrofitting older machinery or integrating into new construction equipment.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Torque Capacity25 Nm+15% (28.75 Nm)+30% (32.5 Nm)*
Voltage Adaptability12V-24V12V-36V12V-48V
Cycle Lifespan50,000 cycles60,000 cycles75,000 cycles
Weight8.5 kg9.2 kg10.1 kg

Supplier's note

  1. Technical Breakthroughs:

    • Material Innovation: Aluminum/steel hybrid construction reduces weight by 20% compared to all-steel models.
    • Torque Optimization: The Pro model’s 32.5 Nm output triples the starting power of legacy diesel starters.
    • Solenoid Efficiency: 98% current transfer efficiency cuts startup time by 15% versus industry benchmarks.

  2. Version Selection Guide:

    • Base Model: Ideal for standard diesel engines (e.g., excavators, bulldozers) requiring reliable, cost-effective performance.
    • Advanced Model: Choose for high-altitude or extreme-temperature environments where extended voltage adaptability is critical.
    • Pro Model: Engineers handling heavy-duty machinery (e.g., mining trucks) benefit from tripled chemical resistance and 30% higher torque, ensuring flawless starts in corrosive or dusty conditions.

*Pro Model torque exceeds ISO 6803-2020 standards by 30%.

Frequently asked questions

  • Which starter motor model suits heavy-duty construction machinery like bulldozers or excavators?

  • How do I maintain the solenoid of a starter motor for long-lasting performance?

  • What materials make the High Performance Starter Motor 4974389 suitable for industrial use?

  • Can this starter motor be customized for vintage or specialized diesel engines?

  • Is the High Performance Starter Motor 4974389 compatible with 24V diesel systems?

  • What certifications ensure the safety of this starter motor for commercial use?

  • Which starter motor is better for compact vs. large construction vehicles?

  • How does this starter motor handle frequent starts in harsh environments?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Torque CapacityHeavy machinery startup (diesel engines)Industry Standard: 300 Nm (ISO 60063)
Our Base: 350 Nm (▲)
Our Advanced: 400 Nm (▲▲)		Ensures reliable ignition for large engines; ▲▲ Advanced model handles extreme loadsHigher torque may require reinforced mounting brackets (Base: +15% cost vs Industry)
Noise LevelUrban construction sitesIndustry Standard: 85 dB (ISO 3095)
Our Base: 80 dB (▲)
Our Advanced: 75 dB (▲▲)		▲▲ Advanced model: "75 dB (quieter than a vacuum cleaner)"
Reduces noise complaints		Lower noise may require premium materials (Advanced: +20% weight vs Base)
Environmental ResistanceHarsh outdoor conditionsIndustry Standard: IP54 (IEC 60529)
Our Base: IP55 (▲)
Our Advanced: IP67 (▲▲)		▲▲ Advanced: "IP67 (dust/waterproof up to 1m immersion)"
Operates in extreme weather		IP67 adds 30% to production cost vs Industry
LifespanHigh-cycle machinery (e.g., excavators)Industry Standard: 5,000 cycles (ASTM D5455)
Our Base: 7,000 cycles (▲)
Our Advanced: 10,000 cycles (▲▲▲)		▲▲▲ Advanced: "10,000 cycles (2x Industry durability)"
Reduces replacement frequency		Extended lifespan requires rare-earth magnets (+15% weight)
CompatibilityUniversal fleet maintenanceIndustry Standard: 10+ engine models (SAE J1171)
Our Base: 15+ models (▲)
Our Advanced: 25+ models (▲▲)		▲▲ Advanced: "25+ models (covers 90% construction machinery brands)"
Reduces inventory costs		Broad compatibility may compromise fitment precision in niche engines
WeightPortable equipment deploymentIndustry Standard: 12 kg (ISO 80000-1)
Our Base: 11 kg (▲)
Our Advanced: 10 kg (▲▲)		▲▲ Advanced: "10 kg (20% lighter than Industry)"
Easier installation and transport		Lightweight materials may reduce vibration resistance (Base: -5% torque vs Industry)

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