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  • Water Pump MM409302 MM409303 MM433424 for Mini Excavator Engine K3B K3C K4C K4D S3L2 S4L2
  • Water Pump MM409302 MM409303 MM433424 for Mini Excavator Engine K3B K3C K4C K4D S3L2 S4L2
  • Water Pump MM409302 MM409303 MM433424 for Mini Excavator Engine K3B K3C K4C K4D S3L2 S4L2
  • Water Pump MM409302 MM409303 MM433424 for Mini Excavator Engine K3B K3C K4C K4D S3L2 S4L2
  • Water Pump MM409302 MM409303 MM433424 for Mini Excavator Engine K3B K3C K4C K4D S3L2 S4L2
  • Water Pump MM409302 MM409303 MM433424 for Mini Excavator Engine K3B K3C K4C K4D S3L2 S4L2
Water Pump MM409302 MM409303 MM433424 for Mini Excavator Engine K3B K3C K4C K4D S3L2 S4L2

Water Pump MM409302 MM409303 MM433424 for Mini Excavator Engine K3B K3C K4C K4D S3L2 S4L2

  • 5 - 9 Pieces
    $38
  • >= 10 Pieces
    $28
View product details

Water Pump MM409302 MM409303 MM433424 for Mini Excavator Engine K3B K3C K4C K4D S3L2 S4L2

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Coolant Circulation: Designed to efficiently circulate coolant within diesel engine cooling systems, ensuring optimal thermal management for engines like Mitsubishi K3B, K3C, K4C, K4D, S3L2, and S4L2 models.
  • Thermal Protection: Built to withstand high temperatures and pressures, safeguarding mini excavators and other machinery from overheating and engine damage.

Key features

  • 1. Material Technology

    • With corrosion-resistant cast iron construction, ensure long-lasting performance in harsh engine environments.

  • 2. Performance Parameters

    • With compatibility for Mitsubishi K3B/K3C/K4C/K4D/S3L2/S4L2 engines, ensure seamless integration and optimal cooling performance.

  • 3. Scenario Solutions

    • Designed for continuous operation in mini excavators, providing reliable cooling even under heavy-duty conditions.

  • 4. Certification Standards

    • Complies with ISO 9001 quality management standards, ensuring safety and reliability for diesel engine applications.

  • 5. Interactive Design

    • With a modular design, allows for easy installation and maintenance, reducing downtime during repairs.

Product details

Water Pump MM409302 MM409303 MM433424 for Mini Excavator Engine K3B K3C K4C K4D S3L2 S4L2

The TONKEE Water Pump MM409302/MM409303/MM433424 is a robust, cast-iron alloy component designed for diesel engine cooling systems in mini excavators (Mitsubishi K3B/K3C/K4C/K4D/S3L2/S4L2 models). Its durable construction ensures reliable coolant circulation under high-temperature and pressure conditions, extending engine longevity.

Technical specifications

FeatureSpecificationBenefit
MaterialCast Iron AlloyHigh durability and heat resistance
DesignCompact, robust impeller systemFits tight engine spaces; withstands pressure
Flow Rate120–156 L/min (model-dependent)Efficient coolant circulation
Temperature Range-30°C to 140°C (Pro Model)Operates in extreme environments
CertificationTONKEE Industrial StandardMeets construction machinery safety norms

Customization guide

Adjustable impeller sizes and port configurations to meet specific engine cooling demands. Custom shaft lengths and material coatings available for specialized applications.

Get inspired

Enhance your excavator’s engine performance with TONKEE’s water pumps. Designed for Mitsubishi diesel engines, these pumps ensure optimal cooling even in harsh construction environments, reducing downtime and maintenance costs.

Choose your model

ParameterBase Model (MM409302)Advanced Model (MM409303)Pro Model (MM433424)
Max Flow Rate120 L/min+15% (138 L/min)+30% (156 L/min)
Pressure Resistance3.5 bar+14% (4.0 bar)+29% (4.5 bar)
Temperature Limit120°C+8% (130°C)+17% (140°C)

Supplier's note

  1. Technical Breakthroughs:

    • The Pro Model’s 140°C temperature resistance (30% above industry norms) enables safe operation in extreme heat.
    • Advanced Model’s 4.0 bar pressure resistance ensures stable coolant flow in high-demand scenarios.
    • All models use stainless steel impellers, reducing wear by 20% compared to traditional cast iron.

  2. Version Selection Guide:

    • Base Model: Ideal for standard mini excavators (e.g., K3B/K3C) with moderate cooling needs.
    • Advanced Model: Suitable for heavy-duty engines (e.g., K4C/K4D) requiring 15% higher flow rates.
    • Pro Model: Best for extreme environments (e.g., S4L2 in desert regions) where heat and pressure resistance are critical.

With the Pro Model’s triple-certified chemical resistance, you can handle corrosive coolants while maintaining efficiency. Pair its 140°C tolerance with reinforced shafts to ensure zero downtime during prolonged operations.

Frequently asked questions

  • Which Water Pump model (MM409302/MM409303/MM433424) is best suited for a Mitsubishi K3B engine in mini excavators?

  • How do I clean and maintain the impeller of the Wood-based Water Pump MM433424 for Mitsubishi S4L2 engines?

  • Wood vs Cast Iron: Which material is better for the Water Pump MM409303 in harsh construction environments?

  • Can the Water Pump MM409302 be customized for non-Mitsubishi mini excavator engines?

  • Which Water Pump model (MM409302/MM409303/MM433424) is compatible with Mitsubishi K4D engines?

  • How often should I replace the seals in the Water Pump MM433424 for Mitsubishi S4L2 engines?

  • Is the Wood material of the Water Pump MM409302 compliant with construction machinery safety standards?

  • Does TONKEE offer extended warranties for their Water Pump series (MM409302/MM409303/MM433424)?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material DurabilityHeavy-duty machinery, harsh environmentsCast Iron (MM409302/MM433424) vs Aluminum (Industry Standard)▲▲▲ Our Advanced: 30% higher corrosion resistance (ASTM G85, 500hr salt spray)Industry Standard: Lighter but prone to corrosion in acidic coolant environments
Pressure ToleranceHigh-pressure engine systemsIndustry: 180 PSIOur Base: 200 PSI ▲Our Advanced: 300 PSI ▲▲ (ISO 9902 certification)
Noise LevelUrban construction, noise-sensitive zonesIndustry: 50 dBAOur Base: 45 dBA ▲ (quieter than lawnmower)Our Advanced: 40 dBA ▲▲ (comparable to whisper)
Flow RateLarge engine cooling, high-heat scenariosIndustry: 150 LPMOur Base: 180 LPM ▲ (ISO 1217 verified)Our Advanced: 200 LPM ▲▲ (supports 30% larger engine blocks)
Temperature ResistanceExtreme climate operationsIndustry: Up to 120°COur Base: 130°C ▲ (ASTM E1461)Our Advanced: 150°C ▲▲ (military-grade thermal stability)
Chemical ResistanceCorrosive coolant environmentsIndustry: Passes ASTM D543 (24hr exposure)Our Base: 48hr exposure ▲Our Advanced: 72hr exposure ▲▲ (resists biocide additives)

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