Product Overview

This is a premium-quality Bypass Valve Assembly engineered for Isuzu 4HK1 diesel engines, commonly found in excavators and heavy machinery. We specialize in supplying genuine-grade replacement parts to the global aftermarket, with reliable shipping to major industrial hubs across North America, Europe, the Middle East, and Asia-Pacific.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM specifications for a perfect fit and reliable performance.
• Enhanced Durability: Constructed from high-grade materials to withstand high temperatures and pressures within the engine cooling or lubrication system.
• Optimal Engine Protection: Ensures proper regulation of fluid flow, preventing overheating and maintaining consistent engine operating temperature.
• Direct Replacement: Designed as a direct bolt-on component, eliminating the need for modifications and ensuring a straightforward installation process.
• Rigorous Quality Control: Each valve undergoes stringent testing to guarantee leak-free operation and long service life.

Technical Specifications

OEM Cross-Reference

Primary OEM Number: 8-97013566-2

This part is a direct replacement for the original Isuzu component. Always verify the part number stamped on your original valve for confirmation.

Compatibility

This bypass valve assembly is specifically designed for Isuzu 4HK1 diesel engines. These engines are widely used in various heavy machinery applications, including but not limited to:

• Excavators (e.g., models from Hitachi, Kobelco utilizing Isuzu 4HK1 power plants)
• Other industrial and construction equipment powered by the Isuzu 4HK1 engine.

Note: Compatibility is engine-specific. We recommend confirming your engine model and serial number before purchase.

Global Supply & Distribution

We are a trusted partner in the global heavy equipment parts supply chain. Our logistics network ensures efficient delivery to key markets worldwide.

• Worldwide Shipping: We export to all major continents via air and sea freight.
• Major Markets Served: North America (USA, Canada), European Union, United Kingdom, Australia, Southeast Asia, Middle East, and Africa.
• Fast Delivery: Consolidated shipments to major ports like Los Angeles, Rotterdam, Singapore, and Jebel Ali for faster regional distribution.
• Export Compliance: All shipments are prepared with complete commercial invoices, packing lists, and comply with international trade regulations.

Quality Assurance

Our commitment is to deliver reliability you can install with confidence.

• Manufacturing Standard: Produced in ISO-certified facilities using precision tooling.
• Testing: Components are tested for pressure integrity, dimensional accuracy, and material conformity.
• Warranty: Backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms applicable to your region.

FAQ

Q: How can I confirm this part fits my specific equipment?
A: The primary fitment is for the Isuzu 4HK1 engine. The most reliable method is to cross-reference the part number (8-97013566-2) with your machine’s official parts manual or the number on the original valve removed from your engine.

Q: Is this a genuine Isuzu part or an aftermarket equivalent?
A: This is a high-quality aftermarket replacement part manufactured to meet or exceed OEM specifications. It provides OEM-level performance and fitment at a competitive price point, suitable for the global aftermarket.

Q: What is the function of the bypass valve in the 4HK1 engine?
A: The bypass valve regulates the flow of coolant or oil, typically diverting it to maintain optimal operating temperature, especially during cold starts. It is a critical component for preventing engine overheating and ensuring efficient thermal management.

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 .