Product Details
Product Overview
This is a high-quality, aftermarket piston ring set specifically engineered for the Isuzu 4HK1 diesel engine. The set is identified by the OEM part number 8-98023-526-0 and is manufactured to a precise 0.50mm oversize specification. This component is critical for restoring compression, reducing oil consumption, and maximizing engine performance during a rebuild or overhaul.
Designed as a direct replacement for the original Isuzu part, this piston ring set ensures a proper fit within the cylinder bore. It is an essential component for engine rebuilders and mechanics working on heavy-duty machinery, trucks, and industrial equipment powered by the reliable Isuzu 4HK1 engine platform. Please verify your specific engine block and piston specifications to ensure the 0.50mm oversize is the correct option for your application.
Key Features & Benefits
- Precise Fitment: Manufactured to exact OEM specifications (8-98023-526-0) for a reliable seal and minimal installation issues.
- Oversize Precision: The 0.50mm oversize is designed for re-bored cylinders, providing the necessary ring tension and seal for a rebuilt engine.
- Durable Material: Constructed from high-grade alloy steel with advanced wear-resistant coatings for extended service life.
- Reduced Oil Consumption: Optimized ring profile ensures excellent oil control, minimizing oil bypass and lowering operating costs.
- Improved Compression: Restores cylinder compression, leading to better fuel efficiency, increased power output, and smoother engine operation.
- Complete Set: Includes all necessary rings (top, second, and oil control rings) for a single piston, simplifying the ordering process.
- Cost-Effective: Provides a high-quality alternative to genuine OEM parts without compromising on performance or durability.
Technical Specifications
| Specification |
Detail |
| Part Number |
8-98023-526-0 |
| OEM Number |
8-98023-526-0 |
| Engine Model |
Isuzu 4HK1 |
| Part Type |
Piston Ring Set |
| Size |
0.50mm Oversize |
| Material |
Alloy Steel / Ductile Iron |
| Ring Configuration |
Top Ring, Second Ring, Oil Control Ring |
| Application |
Engine Overhaul / Rebuild |
OEM Cross-Reference
This piston ring set is a direct replacement for the following OEM part number:
This part is specifically designed to match the original Isuzu specifications for the 4HK1 engine. No alternative cross-references have been identified for this specific oversize variant.
Compatibility
This piston ring set is commonly used for the following engine and vehicle applications:
- Engine Model: Isuzu 4HK1 (4-cylinder, 5.2L diesel engine)
- Common Applications: This engine is widely used in Isuzu trucks (e.g., N-Series, NPR, NQR), Isuzu industrial engines, and various construction and agricultural machinery. It is also found in some General Motors (Chevrolet/GMC) medium-duty trucks under the Isuzu partnership.
Note: Always verify your specific engine serial number and piston bore size to confirm the 0.50mm oversize is required.
Global Supply & Distribution
We are a global supplier of premium diesel engine parts, serving B2B clients worldwide. Our logistics network ensures fast and reliable delivery to major ports and industrial centers.
- Major Markets: North America, Europe, Southeast Asia, Middle East, Africa, and South America.
- Shipping: We offer express (DHL, FedEx, UPS), air freight, and sea freight options to meet your urgency and budget.
- Export Experience: Our team is experienced in international trade documentation and customs compliance, ensuring a smooth transaction for your business.
- Inventory: We maintain a substantial stock of this part number to support large-volume orders and consistent supply.
Quality Assurance
We are committed to providing parts that meet or exceed the performance of original equipment. Our quality assurance process includes:
- Manufacturing Standards: Parts are manufactured in ISO 9001 certified facilities, ensuring consistent quality control.
- Material Certification: All raw materials are tested for hardness, tensile strength, and chemical composition.
- Dimensional Inspection: Each batch of rings is subjected to dimensional checks for thickness, width, and end gap to ensure a perfect fit.
- Warranty: We offer a standard 12-month warranty against manufacturing defects. Extended warranties may be available upon request for volume orders.
FAQ
Q: How do I confirm that the 0.50mm oversize is the correct ring set for my engine?
A: The 0.50mm oversize is only required if your cylinder bore has been machined (honed) to 0.50mm over the standard diameter. You must measure your piston diameter and cylinder bore after machining. If you are using a standard-size piston, you do not need this oversize ring set. We recommend consulting your engine service manual for specific bore specifications.
Q: Is this a complete set for all four pistons?
A: No, this part number (8-98023-526-0) is typically a single-piston set. It includes the top ring, second ring, and oil ring for one piston. For a full engine overhaul, you will need to order four sets. Please check the packaging or your invoice to confirm the quantity per unit.
Q: What is the correct installation procedure for these rings?
A: Installation requires careful attention. First, ensure the ring grooves on your piston are clean. Use a ring expander tool to avoid distorting the rings. Stagger the ring gaps (typically 120 degrees apart) around the piston circumference, ensuring the oil ring expander gap is not aligned with the oil ring rail gaps. Do not force the rings into the cylinder; use a ring compressor to install the piston assembly. Always refer to the Isuzu 4HK1 service manual for the exact torque specifications and gap clearances.
