Product Overview

This premium valve set is engineered for Isuzu 4HL1 diesel engines, providing a critical replacement solution for maintaining optimal engine compression and performance. We specialize in the global distribution of genuine and high-quality aftermarket engine components, serving major industrial and automotive markets worldwide with reliable shipping and export compliance.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM specifications for perfect fitment and seamless operation within the 4HL1 engine cylinder head.
• Superior Heat & Wear Resistance: Made from high-grade alloy steel to withstand extreme combustion chamber temperatures and repetitive impact stress.
• Optimized Airflow: Intake and exhaust valve profiles are designed to maximize volumetric efficiency and exhaust gas scavenging for improved engine power and fuel economy.
• Extended Service Life: Precision machining and surface treatments reduce wear on valve stems and seats, contributing to longer maintenance intervals.
• Complete Matched Set: Sold as a complete intake and exhaust valve pair, ensuring balanced performance and simplified procurement for engine rebuilds.

Technical Specifications

OEM Cross-Reference

These valves directly replace the following OEM part numbers:

• Isuzu Genuine: 8-97033-864-2 (Intake), 8-97219-509-2 (Exhaust)
• Common Alternative References: 8980003526, 8980003527

Compatibility

This valve set is designed for Isuzu 4-cylinder, 5.2L diesel engines. Primary applications include:

• Engine Models: Isuzu 4HL1, 4HL1-T, 4HL1-TC, 4HL1-X. Also compatible with select 4HK1 and 6HK1 configurations (verify specific sub-model).
• Vehicle Applications: Fitted in various Isuzu trucks and commercial vehicles, including the Isuzu Forward (F-Series), Giga (C/E-Series), and industrial power units.
• Typical Model Years: Applications for engines manufactured from the early 2000s onward.

Global Supply & Distribution

We are a trusted supplier in the global automotive aftermarket, ensuring timely delivery to key industrial regions.

• Worldwide Shipping: We export via air and sea freight to all major continents.
• Key Markets Served: North America, European Union, Southeast Asia, Australia, the Middle East, Africa, and South America.
• Logistics Hubs: Fast containerized shipping to major ports including Los Angeles, Rotterdam, Singapore, Dubai, Sydney, and Santos.
• Export Expertise: All shipments are accompanied by commercial invoices, packing lists, and certificates of origin. We are experienced in handling customs clearance for B2B transactions.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities using CNC machinery and strict quality control protocols.
• Material Certification: Raw materials are sourced from certified mills, ensuring consistent metallurgical properties.
• Dimensional Testing: 100% inspection for critical dimensions including stem diameter, head runout, and overall length.
• Warranty: Backed by a standard 12-month warranty against manufacturing defects from the date of purchase.

FAQ

Q1: Are these valves a direct replacement, or is machining required?
A1: These are direct OEM replacement valves. However, for any engine overhaul, we strongly recommend inspecting and machining the valve seats in the cylinder head for a perfect seal and to ensure maximum valve life. Always check stem-to-guide clearance during installation.

Q2: Can I purchase the intake and exhaust valves separately?
A2: This listing is for the complete matched set, which is the standard for engine rebuilds to ensure uniform wear and performance. For individual valve requirements, please contact our sales team with the specific part number needed.

Q3: What is the recommended maintenance interval for checking or replacing these valves?
A3: Valve inspection interval depends heavily on engine duty cycle, fuel quality, and maintenance history. For heavy-duty commercial applications, a compression test and visual inspection during major service intervals (e.g., 250,000 – 500,000 km) is advisable. Signs of needing replacement include loss of engine power, excessive oil consumption, or abnormal combustion noise.

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 .