4-Cylinder Cast Iron Exhaust Manifold for Automotive Construction Machinery Engine

Made of high-grade ductile iron or heat-resistant cast iron, excellent high-temperature resistance and thermal fatigue resistance and withstands long-term high-temperature exhaust gas impact.

Produced by a mature sand casting process, with a dense internal structure free of pores and cracks, stable and reliable product quality in mass production.

Optimized smooth internal flow path design reduces exhaust resistance effectively, improves exhaust efficiency, and helps enhance engine power and fuel economy.

Precision CNC machined mounting surface and bolt holes, strict dimensional tolerance control, high fitting degree with engine cylinder head, ensure reliable air tightness.

100% strict air tightness test for each manifold guarantees no leakage under rated pressure and avoids exhaust gas leakage failure during operation.

Excellent structural strength and impact resistance, not easy to deform or crack under repeated cold and hot cycles, long service life.

Wide compatibility, suitable for various 4-cylinder diesel and gasoline engines, widely used in automobiles, construction machinery, generator sets, and other equipment.

Supports full customization according to customer drawings and can develop exhaust manifolds for special models and different cylinder number requirements.

Stable high-temperature resistance performance, maintains stable structural strength under long-term high-temperature working conditions, no thermal deformation.

Strict surface treatment and anti-rust process improve corrosion resistance adapts to harsh outdoor and engine compartment working environments.