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Product Details
Product Overview
This premium 4HF1 Piston Ring (OEM Number: 8-97331-686-1) is a direct replacement component specifically designed for the Isuzu 4HF1 diesel engine. As a critical part of the engine’s combustion system, this piston ring ensures proper compression, oil control, and optimal performance for a wide range of heavy machinery.
Commonly used in excavators, trucks, forklifts, bulldozers, buses, and loaders, this part is manufactured to OEM specifications, guaranteeing a precise fit and reliable operation. The 4HF1 engine is a workhorse in many industrial applications, and this piston ring is an essential component for engine rebuilds and maintenance.
Whether you are a workshop, a parts distributor, or a fleet manager, this piston ring provides a cost-effective solution for restoring engine power and efficiency in your Isuzu-powered equipment.
Key Features & Benefits
OEM Specification: Manufactured to the exact dimensions and material specifications of the original Isuzu part (8-97331-686-1), ensuring a perfect fit and reliable performance.
Enhanced Durability: Constructed from high-quality materials designed to withstand high temperatures and pressures within the 4HF1 diesel engine combustion chamber, reducing wear and extending service life.
Optimal Compression & Oil Control: Designed to maintain proper cylinder compression for maximum power output while effectively controlling oil consumption to reduce emissions and operating costs.
Versatile Application: Suitable for a broad range of heavy equipment including excavators, trucks, forklifts, bulldozers, buses, and loaders powered by the Isuzu 4HF1 engine.
Rigorous Quality Checks: Each piston ring undergoes strict quality control procedures, including incoming material inspection and outgoing dimensional verification, ensuring consistent product quality.
Complete Set: Includes all necessary rings (compression and oil control) for a single cylinder, simplifying the replacement process during an engine overhaul.
Technical Specifications
Specification
Detail
Part Number
8-97331-686-1
Engine Model
4HF1
Part Type
Piston Ring
Engine Type
Diesel
Size
OEM Standard Size
Weight
2 kg (approx.)
Warranty
6 Months
Packing
Plastic Bag, Box, Carton
Place of Origin
Guangdong, China; Guizhou, China
OEM Cross-Reference
This piston ring set is a direct replacement for the following OEM part numbers:
Isuzu OEM: 8-97331-686-1
Note: This part is manufactured as an aftermarket replacement and is not produced by the original equipment manufacturer (Isuzu). The OEM number is provided for cross-reference purposes only.
Compatibility
This piston ring is designed for use in the following engine and applications. Fitment is inferred based on standard engine specifications for the Isuzu 4HF1 diesel engine.
Engine: Isuzu 4HF1 Diesel Engine
Vehicle/Equipment Applications (Commonly used for):
Excavators
Trucks
Forklifts
Bulldozers
Buses
Loaders
Other industrial machinery powered by the 4HF1 engine
Global Supply & Distribution
We are a dedicated supplier of high-quality engine parts with a robust global distribution network. We serve a wide range of international markets, including North America, Europe, Southeast Asia, the Middle East, Africa, and South America.
Our logistics capabilities ensure fast and reliable delivery to major ports and industrial centers worldwide. We understand the urgency of parts replacement and work with trusted freight partners to minimize shipping times. Whether you require air freight for urgent orders or sea freight for bulk purchases, we can accommodate your needs with full tracking and documentation support.
We are experienced in international trade and can provide all necessary export documentation, including commercial invoices, packing lists, and certificates of origin, to ensure a smooth customs clearance process for our B2B customers.
Quality Assurance
We are committed to providing parts that meet or exceed industry standards. Our quality assurance process includes:
Manufacturing Standards: Parts are produced in ISO-certified facilities, ensuring consistent quality control throughout the manufacturing process.
Testing Procedures: Each batch undergoes dimensional inspection and material verification. A Machinery Test Report and Video Outgoing Inspection are available upon request to verify product quality before shipment.
Warranty: This product is backed by a 6-month warranty against manufacturing defects, providing you with peace of mind for your purchase.
FAQ
Q1: Is this piston ring set a perfect fit for my Isuzu 4HF1 engine? A: Yes, this piston ring set (Part #8-97331-686-1) is manufactured to the OEM specifications for the Isuzu 4HF1 diesel engine. It is designed to be a direct replacement for the original part. We recommend verifying your engine model and the existing part number before purchase to ensure 100% compatibility.
Q2: What is included in the package? Is it a set for one cylinder or the whole engine? A: The package includes a complete set of piston rings (typically 3 rings per set: 2 compression rings and 1 oil control ring) designed for a single cylinder. For a complete engine overhaul on a 4-cylinder 4HF1 engine, you will need to order 4 sets (4 cylinders). The net weight of 2 kg corresponds to a set of rings for one cylinder.
Q3: Do you provide installation guidance or technical support? A: While we do not provide direct installation services, we can offer general technical advice regarding the product specifications. Proper installation of piston rings requires specialized tools and knowledge. We strongly recommend having this part installed by a qualified diesel mechanic or experienced technician to avoid engine damage. Always follow the engine manufacturer’s service manual for proper ring gap and installation procedures.
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