P21W 2-Pin Halogen Bulb Socket – Brake Light Lamp Holder

Q: What bulb type is compatible with this P21W halogen bulb socket?

This socket is designed specifically for P21W single-contact bayonet-style halogen bulbs, commonly used in brake lights, tail lights, reverse lights, and turn signals on a wide range of passenger vehicles.

Q: How many sockets are included in the package?

The package includes 1 socket per order. If you require a pair, please order 2 units to ensure you have both sides covered.

$13.16

$13.16 $16.30

P21W 2-Pin Halogen Bulb Socket – Brake Light Lamp Holder Connector (Pair)

Keep your vehicle's lighting system in top shape with this P21W 2-Pin Halogen Bulb Socket. Designed as a direct-fit lamp holder connector for brake lights, tail lights, and turn signals, this socket pair offers a reliable, secure connection every time. Made from durable plastic, it's built to withstand the heat and vibration of everyday driving — an essential replacement connector for any DIY automotive repair.

Key Features

Compatibility: Fits standard P21W 2-pin halogen bulbs — ideal for brake lights, reverse lights, and turn signal applications
Material: High-quality heat-resistant plastic construction for long-lasting durability
Color: Gray
Size: 4.5 × 4 cm (approx. 1.77 × 1.57 in) — compact and easy to install
Brand New: 100% new and high quality — not refurbished or used
2-Pin Design: Secure two-pin electrical connection for a stable, rattle-free fit
Easy DIY Install: Simple plug-and-play replacement — no special tools required
Made in China

Package Contents

1 × P21W 2-Pin Halogen Bulb Socket (lamp holder connector)

Please Note: Product images are for illustrative purposes only and may not reflect exact size or color. Please allow ±5–10 mm tolerance due to manual measurement. Slight color variation may occur due to monitor settings.

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Learn More About Automotive Lighting Safety

Properly functioning brake and signal lights are critical for road safety. Visit the NHTSA or review CPSC vehicle safety guidelines for more information on automotive lighting standards.

Learn more: Lightbulb socket

Frequently Asked Questions

Q: What bulb type is compatible with this P21W halogen bulb socket?

A: This socket is designed specifically for P21W single-contact bayonet-style halogen bulbs, commonly used in brake lights, tail lights, reverse lights, and turn signals on a wide range of passenger vehicles.

Q: Is this socket a direct replacement for damaged or corroded brake light connectors?

A: Yes. This 2-pin halogen bulb socket is intended as a direct-fit replacement for worn, melted, or corroded OEM lamp holder connectors. Its standard sizing (4.5 × 4 cm) makes it compatible with many common automotive lighting housings.

Q: How many sockets are included in the package?

A: The package includes 1 socket per order. If you require a pair, please order 2 units to ensure you have both sides covered.

Q: Is this socket easy to install at home?

A: Absolutely. This is a plug-and-play style connector — simply remove the old socket, insert your P21W bulb into the new holder, and reconnect the wiring harness. No special tools or professional automotive experience required.