What are automobile parts?

Automobile parts comprise the hundreds of functional units that make up a vehicle, categorized into six key systems.

1. The Heart of the Engine:
Cylinder Block/Head: Die-cast aluminum alloy replaces cast iron, reducing weight while optimizing heat dissipation (e.g., the EA888 engine is 18% lighter).
Turbocharger Housing: Cast from a high-temperature nickel alloy, capable of withstanding 900°C exhaust gas impact without cracking.
Oil Pan: One-piece die-cast aluminum alloy, eliminating the chronic oil leakage problem associated with steel welds.

2. Energy Converter – Transmission System
Transmission Valve Body: Die-cast aluminum alloy with precision oil passages to control hydraulic shifting (ZF 8AT shifts in 0.2 seconds).
Differential Housing: Ductile iron cast gear set with superior impact resistance compared to stamped steel.
Clutch Pressure Plate: Stamped steel + sintered alloy plate for smooth torque transmission. 

3. Chassis System
Steering Knuckle (Cross): Aluminum alloy die-casting reduces weight by 30% and improves suspension response (Tesla's one-piece die-cast front suspension).
Control Arm: Hydroformed steel tube + rubber bushing filters road vibration.
Brake Caliper: Monolithic aluminum alloy casting, six-piston clamping, capable of 300 km/h.

4. Control Nerves: Electrical System
Generator Housing: Die-cast aluminum shields electromagnetic interference and protects vehicle signals.
Sensor Bracket: Magnesium alloy die-cast shock-absorbing base ensures accurate wheel speed/ABS signals.
Wiring Harness Connector: PBT engineering plastic injection molding, waterproof and anti-detachment (IP6K9K grade sealing).

5. Safety Armor: Body System
A/B Pillar Reinforcement: Hot-formed steel stamping creates a crash survival cage (Volvo uses 40% boron steel).
Door Anti-Impact Beam: Roll-formed ultra-high-strength steel, capable of withstanding a 3-ton impact in a side impact. One-piece die-cast floorpan: The Tesla Model Y's rear floorpan reduces 79 parts.

6. Climate Control - Air Conditioning System
Compressor Cylinder: Cast iron with a wear-resistant inner wall, ensuring zero cooling loss after 100,000 kilometers.
Evaporator Housing: Injection-molded glass fiber reinforced plastic, resistant to condensation corrosion.
Heater Water Valve: PPS plastic with a stainless steel valve core, ensuring leak-free operation after 100,000 hot and cold cycle cycles.