Product Overview

This is a premium quality OEM replacement water pump, part number 5-87311148-2, engineered specifically for Isuzu 4LE1 and 4LE2 EFI diesel engines. As a leading global supplier of heavy-duty engine components, we provide reliable spare parts with seamless worldwide shipping to major industrial markets including North America, Europe, the Middle East, and Asia-Pacific.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and optimal performance, ensuring seamless integration with your Isuzu engine’s cooling system.
• Enhanced Durability: Constructed from high-grade materials to withstand extreme thermal cycles and resist corrosion, providing extended service life and reducing total cost of ownership.
• Optimal Cooling Performance: Features a balanced impeller design that maintains consistent coolant flow and pressure, preventing engine overheating under heavy loads.
• Reliable Sealing: Equipped with a robust mechanical seal to prevent coolant leaks, ensuring system integrity and protecting other engine components.
• Direct OEM Replacement: This part is a direct substitute for the original component, requiring no modifications for installation, which minimizes downtime.

Technical Specifications

OEM Cross-Reference

This part is a direct replacement for the following OEM number:

• Isuzu: 5-87311148-2

Please verify your existing part number before ordering. Cross-references may be updated; contact our technical support for confirmation on specific applications.

Compatibility

This water pump is designed for the following Isuzu engine families and their common applications:

• Engine Models: Isuzu 4LE1, Isuzu 4LE2 (Electronic Fuel Injection variants).
• Typical Applications: Commonly found in Isuzu N-Series trucks, industrial generators, construction equipment, and light commercial vehicles powered by these engine platforms.
• Note: Always check your engine’s serial number and exact model designation for final compatibility confirmation. Fitment can vary based on specific production year and configuration.

Global Supply & Distribution

We are a trusted partner in the global automotive supply chain. Our logistics network ensures efficient delivery to key industrial hubs worldwide.

• Worldwide Shipping: We export to all major continents via air and sea freight.
• Key Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Middle East (UAE, Saudi Arabia), Southeast Asia, and South America.
• Fast Delivery: Consolidated shipments to major ports like Los Angeles, Rotterdam, Singapore, and Jebel Ali. Express air options available for urgent requirements.
• Export Compliance: All shipments are prepared with professional commercial invoices, packing lists, and comply with international trade regulations for smooth customs clearance.

Quality Assurance

We stand behind the quality and performance of every part we supply.

• Manufacturing Standards: Components are produced in ISO-certified facilities using precision tooling and strict quality control protocols.
• Warranty: Backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms applicable to your region.
• Testing: Critical dimensions, material hardness, and seal integrity are verified to meet or exceed original performance specifications.
• Inspection: All parts undergo pre-shipment inspection to ensure they are free from damage and match the ordered specification.

FAQ

Q1: Is this water pump a direct fit for my Isuzu 4LE1 engine without any modifications?
A1: Yes, this part (5-87311148-2) is manufactured as a direct OEM replacement. It is designed to bolt directly onto the engine block using the original mounting points and connect to the existing coolant hoses and pulley system without requiring modifications.

Q2: What are the signs that my Isuzu engine’s water pump needs replacement?
A2: Common indicators include visible coolant leakage from the pump’s weep hole, unusual grinding or whining noises from the front of the engine, engine overheating, and excessive play or wobble in the pump pulley when checked manually (engine off).

Q3: Do you recommend replacing any other components when installing this water pump?
A3: For optimal reliability and to prevent premature failure, we strongly recommend replacing the drive belt(s), tensioner, and coolant at the same time. It is also good practice to inspect and replace the thermostat and coolant hoses if they show signs of age or wear, as this ensures the entire cooling system is refreshed.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship out products in 24 hours.

3.  Our packaging is standard export wooden box or others as your requirement.

4.  We will check the products before shipping, and give the pictures to our customers to confirm.

FAQ

Q1: Are you trading company or manufacturer ?
A: We are factory and trading company.

Q2: How long is your delivery time?
A: Generally it is 1-3 days if the goods are in stock. or it is 3-7 days if the goods are not in stock, it is according to quantity.

Q3: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

Q4: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.