Product Overview

This genuine Isuzu 4JH1 piston ring set (Part Number: 8-97941122-0) is engineered for precision performance and long-term durability in demanding industrial and automotive applications. As a trusted global supplier of heavy-duty engine components, we provide reliable parts for major markets worldwide, ensuring your machinery operates at peak efficiency.

Key Features & Benefits

• OEM-Spec Quality: Manufactured to meet or exceed original Isuzu engineering specifications for a perfect fit and optimal performance.
• Enhanced Durability: Constructed from high-grade materials to withstand high temperatures and pressures, reducing wear and extending engine life.
• Optimal Sealing: Precision-machined rings ensure excellent cylinder sealing, maintaining compression and preventing oil consumption.
• Improved Engine Efficiency: Proper ring tension and profile contribute to complete combustion, maximizing fuel economy and power output.
• Reliable Rebuild Solution: An essential component for engine overhauls, helping restore engine performance to factory standards.

Technical Specifications

OEM Cross-Reference

This genuine Isuzu part is supplied under the official part number 8-97941122-0. Always verify this number against your engine’s specifications or existing parts for correct fitment.

Compatibility

This piston ring set is specifically designed for the Isuzu 4JH1 diesel engine. This engine is commonly found in a range of industrial and commercial equipment, including:

• Isuzu N-Series trucks (NPR, NQR, NRR)
• Various industrial generators and power units
• Construction and agricultural machinery

For precise application, always confirm your engine model and serial number.

Global Supply & Distribution

We are a leading exporter of heavy-duty engine components with a robust international logistics network. We serve key industrial regions including North America, Europe, the Asia-Pacific, the Middle East, and Africa. Our expertise in international trade compliance ensures smooth customs clearance. We offer fast and reliable shipping to major ports and industrial hubs worldwide, supporting the timely maintenance needs of global fleets and operations.

Quality Assurance

Every part is sourced to guarantee authenticity and performance. We adhere to strict quality control protocols, and our components are backed by a standard warranty against manufacturing defects. Our commitment is to provide parts that meet the rigorous demands of commercial and industrial use.

FAQ

Q: How do I confirm this piston ring set is the correct part for my Isuzu 4JH1 engine?
A: The primary identifier is the Isuzu part number 8-97941122-0. We recommend cross-referencing this number with your engine’s service manual or the markings on your original piston rings. Providing your engine’s serial number can also help us verify compatibility.

Q: Is this a complete set for one cylinder or the entire engine?
A> This part number typically refers to a piston ring set for a single piston/cylinder. For a complete 4-cylinder 4JH1 engine overhaul, you would require four (4) sets. Please confirm the quantity needed for your specific rebuild project.

Q: What are the critical steps for installing these rings to ensure proper engine break-in?
A> Proper installation is crucial. Key steps include: ensuring the ring gaps are correctly staggered around the piston circumference as per the manufacturer’s diagram, checking ring end-gap clearance in the cylinder bore, and using adequate lubrication. Following a proper engine break-in procedure with varying loads and RPMs after installation is essential for ring seating and long-term performance.

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 .