An aftermarket car part is any component not made by your vehicle's original manufacturer (OEM). These parts are produced by third-party companies and are used as replacements or upgrades. While often more affordable than OEM parts, the aftermarket offers a vast range of options, from basic, budget-friendly replacements to high-performance upgrades that can exceed the original part's capabilities.
The key advantage is choice and cost. You can often find a part that fits your specific budget and performance needs. However, quality can vary dramatically. Some aftermarket parts are certified by organizations like the Automotive Aftermarket Suppliers Association (AASA) to meet or exceed OEM standards, while uncertified parts may be less reliable.
It's crucial to understand the different types of aftermarket parts. OEM-quality parts are designed to match the original's fit and function. Performance parts, like a cold air intake or a performance exhaust system, are engineered to increase horsepower or improve handling. Appearance parts include items like custom wheels or body kits.
When considering an aftermarket part, research is essential. Check for reviews, brand reputation, and any relevant warranties. For critical safety components like brakes or suspension parts, opting for certified quality is highly recommended.
| Part Type | OEM Cost (Avg.) | Quality Aftermarket Cost (Avg.) | Potential Savings | Common Certification |
|---|
| Brake Rotors (Pair) | $250 - $400 | $120 - $250 | up to 50% | CAPA, ISO 9001 |
| Air Filter | $40 - $60 | $15 - $30 | 50-60% | AASA |
| Headlight Assembly | $500 - $1000 | $200 - $600 | up to 60% | CAPA |
| Performance Exhaust | $1,200 - $3,000 | $800 - $2,000 | 30-40% | None (brand-dependent) |
| Shock Absorber | $150 - $300 | $80 - $180 | up to 50% | ISO/TS 16949 |
