NPR Elf Truck Isuzu Pickup Spares Bore Piston Ring 4HG1 4HK1 Engine

This premium piston ring set is a direct-fit replacement engineered for Isuzu heavy-duty diesel engines. Designed to meet or exceed original equipment specifications, it delivers reliable sealing performance, restores compression, and reduces oil consumption during engine overhauls. With a 115mm bore size, this set is ideal for professional rebuilds of Isuzu 4HG1, 4HK1, and 4HK1-TC engine platforms.

• Direct Fit Replacement: Directly replaces original equipment part numbers 8-97105-867-0 and 8971058670, cross-referenced with 8-97219-054-0 and 8-98054-995-0.
• Engine Compatibility: Specially engineered for Isuzu heavy-duty diesel engines including 4HG1, 4HG1-T, 4HJ1, 4HK1, and 4HK1-TC platforms with a 115mm bore size.
• Wide Vehicle Fitment: Compatible with Isuzu ELF, NPR, NQR, and NKR commercial trucks, as well as compatible GMC W-series and Nissan/Mazda commercial applications.
• Restores Compression & Power: Effectively eliminates crankcase blow-by, reduces excessive oil consumption, and restores original engine compression and power output during overhauls.

• Direct Fit & OEM Dimensions: Precision-engineered to exact Isuzu factory cylinder bore (115mm), groove depths, and ring thickness specifications for seamless drop-in installation.
• High-Performance Sealing & Compression: Optimized top compression rings, second scraper rings, and oil control rings provide superior gas sealing, reduced blow-by, and excellent oil consumption control.
• Wear-Resistant Alloy Materials: Manufactured from high-grade alloy cast iron and premium steel with specialized coatings to withstand high combustion temperatures and severe friction.
• Thermal Stability & Radial Tension: Engineered to maintain consistent radial tension and elasticity under extreme thermal expansion and high-load operating cycles.
• 100% Pre-Shipment Quality Inspection: Rigorously inspected for gap clearance, tension consistency, and surface finish prior to shipment to ensure zero-defect engine rebuilds.

Note: Please verify OEM part numbers and engine specifications against your vehicle before ordering to ensure correct fitment.