MK Technology PY21W BAU15S Amber 12V 21W Incandescent Bulb | ALIMER Mauritius

Replace Your Vehicle's Indicator Bulb with the MK Technology PY21W BAU15S Amber Incandescent Bulb

The MK Technology PY21W BAU15S Amber 12V 21W Incandescent Bulb is a standard single-filament automotive bulb designed for vehicles requiring a PY21W (BAU15S) fitting. Operating at 12 volts with a rated power of 21 watts, it is intended as a direct replacement for compatible amber turn signal applications.

PY21W bulbs feature an amber glass bulb and a BAU15S offset-pin bayonet base, helping prevent installation into sockets designed for clear P21W bulbs. They are commonly used for front and rear turn signal indicators.

📋 Specifications

• Bulb Type: PY21W
• Base: BAU15S (Single Contact Offset Bayonet)
• Voltage: 12V
• Power: 21W
• Technology: Incandescent
• Light Colour: Amber
• Brand: MK Technology
• Quantity: 1 Bulb

⭐ Features

• Standard PY21W incandescent replacement bulb.
• Amber glass for indicator applications.
• BAU15S single-contact offset bayonet base.
• Operates at 12V and 21W.
• Direct replacement for compatible PY21W applications.
• Plug-and-play installation.

🚗 Common Applications

Vehicle manufacturers use PY21W bulbs in different locations depending on the model and trim level. Common applications include:

• Front turn signal indicators
• Rear turn signal indicators
• Side indicator lamps (selected vehicles)

Application varies by vehicle. Always verify the bulb type, base and wattage before ordering.

⚠️ Before You Buy

Please check your vehicle owner's manual or inspect the existing bulb before ordering to confirm that your vehicle uses a PY21W (BAU15S) bulb.

Although P21W and PY21W bulbs are both rated at 21W, they use different bases and are not interchangeable. Always replace the bulb with the correct type specified by the vehicle manufacturer.

🇲🇺 Why Buy from ALIMER?

• Local stock in Mauritius.
• Fast nationwide delivery.
• Free pickup in Rose Hill.
• Every bulb is tested before shipping.
• WhatsApp support to help you identify the correct bulb.

Frequently Asked Questions (FAQ)

What is a PY21W bulb used for?

PY21W bulbs are most commonly used for front and rear turn signal indicators. They produce an amber light and are designed specifically for vehicle indicator applications.

What does BAU15S mean?

BAU15S is the base type of the bulb. It is a 15 mm single-contact bayonet base with offset locating pins. The offset pin design helps prevent a PY21W bulb from being installed into a standard BA15S socket intended for a P21W bulb.

What does PY21W mean?

PY21W is the international bulb designation for a 12V 21W amber single-filament automotive bulb. The letter "Y" indicates that the bulb produces an amber (yellow) light.

Is this an LED bulb?

No. This is a conventional 12V 21W incandescent automotive bulb.

Will this replace my existing PY21W bulb?

Yes, provided your vehicle uses a PY21W (BAU15S) bulb. Always match the bulb type, base and wattage to the original bulb.

Can I replace a P21W with a PY21W bulb?

No. Although both bulbs are rated at 21W, a P21W uses a BA15S base with opposite locating pins and produces a clear light, while a PY21W uses a BAU15S base with offset locating pins and produces an amber light. They are not directly interchangeable.

How many bulbs are included?

This listing includes one (1) MK Technology PY21W BAU15S Amber 12V 21W incandescent bulb.

Are these suitable for left-hand and right-hand drive vehicles?

Yes. Bulb compatibility depends on the lamp socket and bulb specification, not whether the vehicle is left-hand or right-hand drive.

Also known as what?

This bulb is commonly known as a PY21W, BAU15S, 7507, or simply an amber indicator bulb, depending on the vehicle manufacturer and market.