South America Automotive Parts Zinc Die Casting - Market Share Analysis, Industry Trends & Statistics, Growth Forecasts (2026-2031)

The South America automotive parts zinc die casting market size was valued at USD 1.27 billion in 2025, is estimated at USD 1.32 billion in 2026, and is projected to reach USD 1.61 billion by 2031, growing at a CAGR of 4.05% from 2026 to 2031. This report is segmented by Production Process Type (Pressure Die Casting, Vacuum Die Casting, and More), Alloy Type (Zamak 3, Zamak 5, and More), Application (Body Assemblies, Engine Parts, and More), End-User Vehicle Type (Passenger Vehicles, Light Commercial Vehicles, and More), Sales Channel, and Country. Market Forecasts are Provided in Terms of Value (USD).

South America Automotive Parts Zinc Die Casting Market Trends and Insights

Growth in South American Passenger-Vehicle Production

Brazil achieved a notable rebound that lifted regional vehcile output in 2025, increasing immediate demand for zinc die-cast brackets and housings. According to the International Energy Agency, South America witnessed significant growth in electrified vehicles by 2025. Electric models require more zinc compared to their internal-combustion counterparts. In Argentina, a local-content mandate is driving increased sourcing toward domestic Tier-2 zinc casters. Additionally, the ratification of the EU-Mercosur pact is expanding export opportunities for foundries in Brazil and Argentina.

Rising Demand for EMC-Shielded E/E Housings in EVs

Electric drivetrains create electromagnetic interference, and zinc die-cast enclosures readily deliver 60-80 dB attenuation across 30 MHz-1 GHz, eliminating the cost of conductive coatings. By 2026, South America's electric vehicle (EV) fleet will require a significant number of housing units. The region is capable of meeting this demand using its existing pressure die-casting cells. ZA-27 alloy is gaining favor for motor shields, while Zamak 5 dominates under-floor battery trays exposed to salt spray. Brazil’s emissions standards indirectly accelerate EMI compliance, and a tight link to the United States EV supply chains keeps design cycles short.

Competition from Aluminum Die Casting

Aluminum’s 2.7 g/cm³ density offers notable weight savings versus zinc, luring OEMs for battery-tray frames despite higher tooling costs . A leading precision manufacturer expanded its aluminum production capacity in 2025 to supply an electric vehicle manufacturer. Supported by a strong operational base and decades of expertise, Nemak can flexibly adjust its production capacity across metals, prompting zinc die casters to specialize in complex geometries.

Other drivers and restraints analyzed in the detailed report include:

• Lightweighting Regulations Favoring Zinc Alloy Components
• Surge in EV Motor and Battery-Housing Applications
• Volatility of Zinc Prices

Segment Analysis

Pressure die casting captured a 68.12% share of the South American automotive parts zinc die casting market in 2025, supported by mature plant know-how and sub-60-second cycle times. Vacuum die casting’s 7.48% CAGR through 2031 reflects EV demand for porosity-free, leak-tight battery enclosures, narrowing the cost gap as scrap rates fall below 1%.

Vacuum cells require sealed chambers and pumps, increasing capital expenditure. Semi-solid and squeeze variants remain experimental, limited to prototype thin-wall parts. Continuous training and NADCA-standard certification help large casters defend their share against aluminum rivals as the South American automotive parts zinc die casting market pivots to higher-integrity EV applications.

Zamak 3 held 50.25% of the South American automotive parts zinc die casting market size in 2025 because of superior castability and cost-effectiveness. ZA alloys are projected to grow at 8.27% CAGR to 2031 as 800-V architectures call for tensile strength up to 425 MPa, beating Zamak 3’s 280 MPa ceiling.

Zamak 5’s chromium micro-addition makes it the alloy of choice for coastal body assemblies, while proprietary blends with copper or magnesium serve niche wear-resistant fuel-system housings. As EV adoption rises, OEMs shift incremental volume into ZA-27 motor shields, increasing the South American automotive parts zinc die-casting market share of high-strength alloys and driving multi-alloy flexibility investments across major plants.

Complete Report Scope:

• By Production Process Type
  • Pressure Die Casting
  • Vacuum Die Casting
  • Squeeze Die Casting
  • Semi-Solid Die Casting
• By Alloy Type
  • Zamak 3
  • Zamak 5
  • ZA Alloys
  • Others
• By Application
  • Body Assemblies
  • Engine Parts
  • Transmission Parts
  • Electrical and Electronics Housings
  • Interior and Trim Components
• By End-User Vehicle Type
  • Passenger Vehicles
  • Light Commercial Vehicles
  • Heavy Commercial Vehicles
  • Two-Wheelers
• By Sales Channel
  • OEM
  • Aftermarket
• By Country
  • Brazil
  • Argentina
  • Chile
  • Peru
  • Rest of South America

List of Companies Covered in this Report:

• PHB Inc.
• Redstone Manufacturing
• Empire Casting Co
• Spark Minda (Minda Corporation Limited)
• Martinrea International Inc.
• Bremetsa S.A.
• Starcast Industrial Ltda
• Bruschi Srl
• Brillcast Manufacturing LLC
• JEGAN, S.A.L.
• HSL Industria
• Sinyetec S.A.S.

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support