OTTO Excavator Parts Zx450 6Wg1T Exhaust Manifold 1141419990 114141-9990 1-14141999-0 For Isuzu Durable 1-14141999-0 manifold designed for non-stop mining operations. Resists high heat, dust, and corrosion, ensuring consistent exhaust flow to maintain engine efficiency. Engineered to reduce downtime in harsh environments, with a 3-12 month warranty for long-term reliability.