Product Overview

This is a genuine, high-quality water pump pulley designed for Isuzu industrial and automotive diesel engines. As a leading supplier of genuine Isuzu engine parts, we provide reliable components for the global aftermarket, serving major markets across North America, Europe, Asia-Pacific, and the Middle East. This pulley is engineered for precise fitment and long-term durability in demanding applications.

Key Features & Benefits

• Genuine Isuzu Quality: Manufactured to original equipment specifications, ensuring perfect fit and optimal performance.
• Robust Construction: Built from high-grade materials to withstand the stresses and thermal cycles of diesel engine operation.
• Precision Balanced: Engineered for smooth rotation to reduce vibration and wear on the water pump bearing and drive belt.
• Corrosion Resistant: Treated surfaces help prevent rust and degradation, extending service life even in harsh environments.
• Direct Replacement: Designed as a direct OEM replacement, guaranteeing compatibility and eliminating installation guesswork.

Technical Specifications

OEM Cross-Reference

This genuine part corresponds directly to the following OEM numbers:

• Isuzu: 5-13663031-2, 5136630312

Compatibility

This water pump pulley is compatible with the following Isuzu diesel engine series:

• Isuzu 4BG1 Engine Series: Commonly found in industrial generators, construction equipment (excavators, loaders), and medium-duty trucks.
• Isuzu 4BD1 Engine Series: Used in a variety of applications including light commercial vehicles, buses, and stationary power units.

Note: Always verify your engine’s model and serial number for final confirmation of compatibility.

Global Supply & Distribution

We are a trusted global exporter of genuine engine components. Our logistics network ensures efficient delivery to key industrial regions worldwide.

• Worldwide Shipping: We ship to North America, South America, Europe, Asia-Pacific, Africa, and the Middle East.
• Major Port Delivery: Fast container and LCL shipments to major ports including Rotterdam, Los Angeles, Singapore, Dubai, and Sydney.
• Export Expertise: Fully compliant with international trade regulations. All necessary commercial invoices, packing lists, and certificates are provided.
• B2B Focus: We support wholesalers, distributors, and large-scale repair workshops with competitive bulk pricing and reliable supply chains.

Quality Assurance

Every part meets the stringent quality standards expected of genuine Isuzu components.

• OEM Specification: Manufactured to original Isuzu blueprints and material specifications.
• Rigorous Inspection: Each pulley undergoes dimensional checks and visual inspection to ensure flawless quality.
• Performance Guarantee: Designed to deliver the same performance and longevity as the original factory part.
• Reliable Sourcing: Supplied through authorized channels, guaranteeing authenticity.

FAQ

Q1: Is this pulley a direct fit for my Isuzu 4BG1 engine?
A1: Yes, this is a genuine OEM part (5-13663031-2) designed as a direct replacement for the water pump pulley on Isuzu 4BG1 and 4BD1 engine series. No modifications are required for installation.

Q2: What are the signs that my water pump pulley needs replacement?
A2: Common indicators include unusual squealing or grinding noises from the front of the engine, visible wobble or misalignment of the pulley, coolant leaks from the water pump bearing seal (often caused by pulley imbalance), and excessive wear or cracking on the pulley itself.

Q3: Do you provide parts for other Isuzu engine models?
A3: Absolutely. We supply a comprehensive range of genuine and high-quality aftermarket parts for numerous Isuzu engine families, including 4HK1, 6HK1, 6WG1, and C240. Contact us with your specific part numbers or engine model for a complete quotation.

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 products in 2 days.

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

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .