8973015880 897301-5880 8-97301588-0 Nkr77 4Jh1 Oil Radiator Core For Isuzu The 8973015880 oil radiator core is designed for Isuzu vehicles, specifically suitable for the Nkr77 model equipped with the 4Jh1 engine. This product is crafted to efficiently cool the engine oil to maintain optimal operating temperatures, ensuring the engine functions effectively and extends its lifespan.