Mitsubishi K4E K4F K4N K4M Engine Water Pump MM407405 30H45-00210 30H45-00200

Product Details

Product Overview

This high-quality water pump is specifically engineered for Mitsubishi heavy-duty diesel engines in the K4 series, including models K4E, K4F, K4N, and K4M. Designed as a direct replacement for OEM part numbers MM407405, 30H45-00210, and 30H45-00200, this component is critical for maintaining optimal engine cooling system performance.

Manufactured to OEM specifications, this water pump ensures proper coolant circulation, preventing overheating and protecting engine components from thermal stress. It is commonly used in construction machinery, industrial equipment, agricultural tractors, generator sets, marine applications, and material handling equipment powered by Mitsubishi K4-series diesel engines.

Key Features & Benefits

• OEM Specification Fitment: Manufactured to match original Mitsubishi dimensions and tolerances for direct bolt-on replacement without modification.
• Durable Construction: Features a precision-machined housing and high-quality bearing assembly for extended service life in demanding working conditions.
• Reliable Coolant Flow: Engineered impeller design ensures consistent water circulation to maintain proper engine operating temperature.
• Corrosion-Resistant Finish: Protective coating on external surfaces resists rust and degradation from coolant exposure and environmental elements.
• Rigorous Quality Control: Each unit undergoes pressure testing and rotational balance verification before shipment to ensure leak-free performance.
• Easy Identification: Part numbers MM407405, 30H45-00210, and 30H45-00200 are clearly marked for quick cross-reference verification.
• 6-Month Warranty: Backed by a defect liability period of 6 months for buyer confidence.

Technical Specifications

OEM Cross-Reference

This water pump is a direct replacement for the following original equipment manufacturer (OEM) part numbers:

• MM407405 (Mitsubishi Heavy Industries)
• 30H45-00210
• 30H45-00200

These cross-reference numbers ensure compatibility with genuine Mitsubishi parts catalogs for K4-series diesel engines. Always verify your existing part number against this list before ordering.

Compatibility

This water pump is designed for use with the following Mitsubishi diesel engine models:

• K4E – Commonly found in construction equipment and industrial machinery
• K4F – Used in agricultural tractors and generator sets
• K4N – Applied in marine propulsion and auxiliary engines
• K4M – Utilized in material handling and compact equipment

Typical Applications: This component is commonly used for Mitsubishi-powered construction machinery (excavators, loaders), industrial equipment, agricultural tractors, generator sets, marine engines, and forklifts. Fitment verification with your specific equipment model is recommended before purchase.

Global Supply & Distribution

We maintain extensive inventory and ship worldwide to support international B2B buyers. Our distribution network covers all major markets including:

• North America: Fast delivery to US and Canadian industrial centers
• Europe: Regular shipments to EU ports and inland destinations
• Asia-Pacific: Direct service to Japan, Korea, Australia, and Southeast Asia
• Middle East & Africa: Reliable logistics to Dubai, Saudi Arabia, and African markets
• Latin America: Efficient shipping to Brazil, Mexico, and Chile

We offer flexible shipping options including express courier (DHL, FedEx, UPS), air freight, and sea freight. Our export team handles all customs documentation and international trade compliance requirements. Bulk orders and consolidated shipments are available for volume buyers.

Quality Assurance

Every water pump is manufactured under strict quality control standards in ISO-compliant facilities. Key quality measures include:

• Material Verification: Raw materials are tested to meet OEM specifications for strength and thermal resistance
• Dimensional Accuracy: Critical mounting surfaces and seal areas are inspected to ensure proper fitment
• Pressure Testing: Each unit is tested for leaks under operating pressure conditions
• Rotational Balance: Impeller and shaft assemblies are balanced to minimize vibration and bearing wear
• Final Inspection: Visual and functional checks performed before packaging

All products are backed by a 6-month defects liability period from the date of purchase. Video outgoing inspection can be provided upon request for quality verification before shipment.

FAQ

Q1: How can I confirm this water pump fits my Mitsubishi K4 engine?
Verify your existing water pump part number against our OEM cross-reference list (MM407405, 30H45-00210, or 30H45-00200). Also confirm your engine model is K4E, K4F, K4N, or K4M. If your engine has a different prefix (e.g., K3 or K5 series), this pump will not fit. For custom applications, contact us with your engine serial number and original part number for verification.

Q2: What is the recommended installation procedure for this water pump?
Drain the coolant system completely before removal. Clean the mounting surface on the engine block thoroughly. Replace the gasket or O-ring (not included) with a new one. Apply thread sealant to mounting bolts if specified by the engine manual. Torque all bolts to manufacturer specifications in the correct sequence. Refill with fresh coolant and bleed air from the system before starting the engine. Check for leaks after the first thermal cycle.

Q3: How often should this water pump be replaced?
The replacement interval depends on operating conditions and maintenance schedules. For heavy-duty applications (construction, mining, marine), inspection every 1,000-2,000 operating hours is recommended, with replacement typically at 3,000-5,000 hours or during major engine overhaul. Signs of failure include coolant leaks from the weep hole, bearing noise, impeller wobble, or engine overheating. Always replace the water pump when performing cooling system maintenance or timing belt/chain replacement on K4 engines.