This heavy-duty engine intake valve is designed specifically for Isuzu NPR, NQR, NPR-HD, NPR, and NRR models equipped with the 4HE1 4.8L engine from 1998-2004. Precision-engineered to meet strict specifications, this inlet valve features robust black-coated construction with a durable stem and precision-ground head for optimal sealing and performance. The valve includes a reinforced head design and hardened stem tip to withstand the demanding conditions of commercial diesel engine operation. Its specialized design helps maintain proper compression and fuel efficiency while ensuring smooth engine operation. This replacement valve is manufactured to match OEM specifications for reliable fitment and function. Essential for engine rebuilds or repairs, this intake valve helps restore proper engine breathing and combustion efficiency to keep your Isuzu commercial vehicle running at peak performance.

COMPATIBILITY: Designed for Isuzu NPR NQR NPR-HD NPR NRR models with 4HE1 4.8L engines from years 1998-2004

CONSTRUCTION: Precision-engineered intake valve made from durable materials for reliable engine performance

DIMENSIONS: Standard OEM-specified measurements ensure exact fitment for proper engine operation

INSTALLATION: Direct replacement part that matches original equipment specifications for straightforward fitting

PERFORMANCE: Facilitates optimal air-fuel mixture flow into the combustion chamber for efficient engine operation

OEM

8970338642 / 8970338640 
8943673980 / 8970338641