Maintain engine efficiency and power with this OEM-quality Piston Ring Set, designed for Isuzu 4HG1 and 4HG1T diesel engines. These precision-engineered piston rings ensure a perfect seal between the piston and cylinder wall, preventing oil consumption, improving compression, and maintaining combustion efficiency.
Ideal for engine rebuilds, overhauls, or maintenance, this piston ring set enhances performance, reduces smoke, and ensures long-lasting durability. Compatible with NPR, NKR, and NHR trucks, it meets OEM standards for fit, material quality, and performance, making it an essential component for restoring your engine’s reliability.
Key Features:
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OEM-quality piston ring set for Isuzu 4HG1 / 4HG1T engines
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Ensures proper compression and reduces oil leaks
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Improves engine efficiency and combustion performance
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Durable and heat-resistant materials for long-lasting operation
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Compatible with NPR, NKR, and NHR commercial trucks
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Ideal for engine rebuilds and overhauls
Frequently Asked Questions (FAQ)
1. Which engines is this piston ring set compatible with?
This set is compatible with Isuzu 4HG1 and 4HG1T diesel engines.
2. Can it be used in NPR, NKR, and NHR trucks?
Yes, it is suitable for all these commercial truck models.
3. What is the purpose of this piston ring set?
The piston rings ensure proper compression, prevent oil leaks, and improve combustion efficiency.
4. Is this suitable for engine rebuilds?
Absolutely. It is ideal for engine overhauls, rebuilds, and maintenance.
5. Does it meet OEM specifications?
Yes, it is manufactured to OEM standards for durability, fit, and reliable engine performance.
Piston Ring Set | Isuzu 4HG1 / 4HG1T Engine
OE Replacement: Not Available
Fits Following: NQR / NPR / NPR-HD / FXR / 4HK1 5.2L / 4HGT1 4.6 / (Unit)
Year: Provide vin# or serial number for Year Information




