This precision-engineered Bypass Oil Relief Valve is specifically designed for ISUZU NRR, NPR, NPR-HD, and NQR models equipped with the 4HE1 4.8L engine from 1998-2004. Featuring a robust construction with silver housing and brass internal components, this valve helps maintain optimal oil pressure by redirecting excess oil flow back to the sump when pressure exceeds the set threshold. The durable design includes precision-machined components to ensure reliable performance under demanding conditions. This replacement valve matches OEM specifications for proper fitment and function, helping protect your engine by preventing excessive oil pressure buildup. Installation requires basic mechanical knowledge and standard tools. This component plays a crucial role in your engine's lubrication system, making it an essential replacement part for maintaining proper engine operation.
COMPATIBILITY: Designed specifically for ISUZU NRR NPR NPR-HD NQR models with 4HE1 4.8L engines from 1998-2004
CONSTRUCTION: Premium build featuring brass internal components and durable aluminum housing for long-lasting performance
PRECISION DESIGN: Engineered bypass valve system maintains optimal oil pressure and protects engine components during operation
DIRECT REPLACEMENT: Perfect fit as a direct OEM replacement part, ensuring proper installation and function
RELIABLE PERFORMANCE: Heavy-duty construction withstands high-pressure conditions while maintaining consistent oil flow regulation
OEM
8970757540 / 8970459610