
Product Overview
This is a genuine Isuzu valve seal, a critical component for maintaining optimal engine compression and oil control. Designed for the robust 4HK1 and 6HK1 engine series, this part is essential for heavy-duty applications, particularly in excavators and other construction machinery. We supply this high-quality component globally, with extensive experience serving major industrial markets across North America, Europe, Asia-Pacific, and the Middle East.
Key Features & Benefits
- Genuine OEM Quality: Manufactured to exact Isuzu specifications, ensuring perfect fitment and reliable performance under extreme conditions.
- Superior Sealing Material: Constructed from high-grade, heat-resistant rubber compounds to withstand high temperatures and prevent oil leakage into the combustion chamber.
- Enhanced Engine Longevity: Prevents oil consumption and smoking, protecting catalytic converters and maintaining engine efficiency for longer service life.
- Optimal Compression Retention: Ensures consistent cylinder compression, which is vital for engine power, fuel economy, and reduced emissions.
- Direct Replacement: A direct fit for the original part, simplifying the repair process and minimizing downtime for critical equipment.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 8-97376720-0 |
| Alternate Part Number | 8973767200 |
| Compatible Engine Models | Isuzu 4HK1, Isuzu 6HK1 |
| Part Type | Valve Seal / Valve Guide Seal |
| Primary Application | Excavators and Heavy-Duty Construction Equipment |
| Condition | New, Genuine |
OEM Cross-Reference
This genuine Isuzu part corresponds to the following OEM numbers:
- Isuzu: 8-97376720-0
- Isuzu (Alternate Format): 8973767200
Compatibility
This valve seal is specifically designed for Isuzu diesel engines and is a critical replacement part for the following applications:
- Engine Models: Isuzu 4HK1-TC, 4HK1-XS, 6HK1-TC, 6HK1-XS, and related variants.
- Vehicle/Machine Applications: Primarily used in excavators from various manufacturers (e.g., Hitachi, Komatsu) utilizing Isuzu power plants. Also compatible with certain heavy-duty trucks and generator sets powered by the 4HK1/6HK1 engines.
- Typical Model Years: Applicable for equipment models from the early 2000s to present, where these engine series are installed.
Global Supply & Distribution
We are a trusted global supplier for heavy-duty engine components. Our logistics network ensures reliable delivery to key industrial regions worldwide.
- Worldwide Shipping: We export to all major markets, including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands), Asia-Pacific (Australia, Japan, Singapore), and the Middle East (UAE, Saudi Arabia).
- Fast Delivery to Hubs: Efficient shipping to major ports and industrial centers like Los Angeles, Rotterdam, Singapore, and Dubai.
- Export Expertise: Comprehensive experience in international B2B trade, including full commercial invoice, packing list, and compliance with standard export regulations.
- Bulk & Wholesale: We support large order quantities for distributors, workshops, and fleet operators.
Quality Assurance
- OEM Standard: This is a genuine Isuzu part, guaranteeing it meets all original factory specifications for material, dimensions, and performance.
- Rigorous Testing: Components are subject to quality checks to ensure they meet durability and sealing performance standards.
- Warranty: Backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms applicable to your region.
- Packaging: Supplied in protective packaging to prevent damage during transit and storage.
FAQ
Q: How do I confirm this valve seal fits my specific Isuzu 4HK1 engine?
A: The primary fitment is confirmed by the part number 8-97376720-0. We recommend cross-referencing this number with your engine’s service manual or the number on the original seal being replaced. The 4HK1 and 6HK1 engines use a common valve train design for this component.
Q: What are the symptoms of a failing valve seal that this part would fix?
A: Common symptoms include excessive blue/gray smoke from the exhaust (especially on startup or deceleration), increased oil consumption without external leaks, and fouled spark plugs (in gasoline applications) due to oil ingress into the combustion chamber.
Q: Do you provide technical support for installation?
A> While we supply the genuine component, installation should be performed by a qualified technician. The process typically requires removing the cylinder head or using specialized tools to replace seals with the head in place. We can provide general guidance, but specific procedures should be followed as per the official engine service manual.
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 .