2014-2021 Toyota 4Runner Headlight Driver side LH | TO2518150

Car Light Fitment & Installation Guide

Choosing the right car light isn’t just a cosmetic choice — it’s about safety, visibility, and long-term reliability. Every light we sell is vehicle-specific, designed using accurate data (year, make, model, trim) to ensure a perfect OEM-style fit — no rewiring, no modifications, no guesswork.

Why Proper Fitment Matters

• Engineered Precision: Perfect alignment with the body shape, mounting points, and factory socket locations.
• Plug-and-Play Compatibility: Built to match OEM electrical systems for a direct connection.
• DOT & SAE Certified: Designed and tested to meet North American road safety standards.

Pro Tip: Always match your original OEM Part Number before purchasing — it’s the most accurate way to confirm compatibility. If you’re unsure, submit our Part Request Form and our team will confirm the exact fit.

Prefer to browse? Use the multi-filter on our Home page or jump straight into these collections:

• Headlights
• Tail Lights
• Fog Lights
• Daytime Running Lights (DRL)

Built for Real-World Driving Conditions

From freezing winters to hot, dusty summers — real-world driving conditions push every car part to the limit. Our headlights, tail lights, fog lights, and DRLs are built and tested for demanding road environments.

• Full Weather Sealing: Keeps moisture and condensation out, even during car washes or heavy rain.
• UV- and Crack-Resistant Lens: Maintains clarity under direct sunlight and extreme temperatures.
• Instant Cold-Weather Start: Delivers maximum brightness instantly, even in low-temperature conditions.

Reminder: Harsh climates quickly expose low-quality lighting. We only carry products engineered for long-term durability and consistent performance.

Why Our Lights Are Worth the Investment

• Scratch-Resistant, Anti-Yellow Lens: Clear, bright illumination that lasts for years.
• Fully Sealed Housing: Prevents leaks, fogging, and damage from moisture or pressure.
• Premium Internal Components: High-quality LED, HID, or halogen systems sourced from trusted global suppliers.
• Comprehensive Testing: Each unit is verified for fitment, beam alignment, and weather sealing before shipping.

Our Promise: We only sell lights we’d confidently install on our own vehicles.

Installation Tips for a Perfect Fit

Proper installation ensures maximum performance and safety. Follow these professional recommendations:

• Disconnect the battery before installation to prevent short circuits or ECU damage.
• Avoid forcing the fit: If it doesn’t slide in easily, double-check alignment — never push or twist the housing.
• Adjust beam height and alignment for optimal road visibility.
• Use only OEM-grade connectors: Low-quality adapters can cause flickering or dashboard errors.

Technical Tip: Some newer vehicles may require a CANBUS or resistor kit for LED or HID lights to avoid “bulb out” warnings.

Frequently Asked Questions (FAQ)

Q: How do I confirm if this light fits my vehicle?
Check your original OEM part number or submit our online Fitment Request Form — we’ll confirm it for you.

Q: Can I use these lights on my vehicle?
Yes — they’re designed to meet North American vehicle standards and perform reliably in all seasons.

Q: Will I need extra wiring or adapters?
No — all our lights are plug-and-play and built to OEM electrical specifications. Some LED or HID systems may need a CANBUS kit, depending on your vehicle model.

Q: Are these lights weatherproof?
Absolutely. They’re fully sealed against moisture, UV exposure, and temperature extremes.