Headlight Polishing vs Lens Replacement vs New Headlight: Cost and Lifespan
ChinKhoob · 2026-09-21
Short answer: polishing is cheapest but usually lasts only months in hot, sunny climates. A replacement lens with a fresh UV coat looks new for years at a fraction of an assembly’s price — ChinKhoob reference prices are about USD 30–330 per side. Buy a full assembly only when the housing, mounts or electronics are damaged.
| Option | Relative cost | Lasts | Best for |
|---|---|---|---|
| Polishing | Low | Months | Outer haze only |
| Lens replacement | Medium (part USD 30–330 + labour) | Years | Deep yellowing, cracks, inner haze |
| New assembly | High | Years | Broken housing, failed LEDs |
When to replace the lens
- The haze is on the inside, where polishing cannot reach.
- The lens is cracked or chipped, or moisture gets in.
- It has been polished several times and is thin or wavy.
- Housing, projector and bulbs still work.
For garages, lens replacement is a profitable 1–2 hour job per headlight. See wholesale terms.