Custom automotive water pump housing casting with volute passages and machined ports for cooling-system assemblies. Sanjack is a China investment casting manufacturer, factory, exporter and supplier producing housings to custom drawing and project factory price.
Automotive Water Pump Housing Casting is a lightweight precision casting for automotive cooling systems. Sanjack is a China investment casting manufacturer and factory supplying customized pump housings from drawings at a competitive exporter price.
Material options include stainless steel, carbon steel and heat-resistant alloy steel. Typical casting weight is 0.1–50 kg and tolerance can reach ISO 8062 CT5–CT6. Port geometry, mounting holes and machined sealing surfaces follow the customer drawing.
Silica-sol investment casting creates the complex water passages, followed by heat treatment, CNC milling, drilling, tapping and surface finishing. Critical bearing, gasket and connection surfaces are machined after casting for dependable fit.
Dimensional inspection, material reports and optional pressure or leak testing are available. Typical MOQ is 100 pieces; production lead time is about 35–40 days after sample approval. Send your automotive pump housing drawing to export@tousinmetal.com.


