1 / 7Tek Automotive PY21W 581 Indicator Bulbs, 12V 21W BAU15S, Twin Pack
Twin Pack: Tek Automotive PY21W indicator bulbs are a pair of 12V, 21W amber replacements for vehicles that use the 581 / BAU15S offset-pin fitting. The listing describes them as E-marked for road use, but the correct bulb type must be confirmed for your vehicle before ordering.
At a glance
- Offset-pin BAU15S fitment for vehicles using 581 / PY21W indicator bulbs.
- Amber output for indicator applications.
- The listing claims E-marked road-legal compliance.
- Pair format allows both sides to be replaced together if both use this bulb type.
Often bought together
Pros and cons
Pros
- A two-bulb pack suits paired replacement where the vehicle uses this exact fitting.
- Amber colour and stated 12V, 21W rating match the listed indicator application.
Technical specifications
14 specifications| Brand | Tek Automotive |
|---|---|
| Manufacturer part number | TK581BL |
| Item type | Car Bulb |
| Country of origin | China |
| Voltage | 12 Volts |
|---|---|
| Wattage | 21 watts |
| Bulb designation | PY21W |
| Alternative designation | 581 |
| Base | BAU15S |
| Fit type | Universal Fit |
| Position | Front, Rear |
| Colour | Amber |
|---|---|
| Number of items | 2 |
| Package quantity | 1 |
What to know before buying
Listing details to confirm
Confirm PY21W / 581 BAU15S fitment in the vehicle handbook before purchase. The listing calls this a twin pack and says it contains two bulbs, while package-quantity fields state 1. Its E-mark and road-use status are listing claims, not independently confirmed here.
What’s in the box
Included- 581 bulbs × 2
Who is it for?
A good fit for
- Drivers replacing front or rear indicators that specify PY21W / 581 BAU15S bulbs.
- Buyers who want a matched pair for compatible indicator positions.
Less suited to
- Vehicles that require a different bulb designation, base or electrical rating.
- Buyers seeking LED bulbs, which are not identified as the supplied bulb type.
Customer reviews on Amazon
- 5 stars
74% 74% - 4 stars
16% 16% - 3 stars
6% 6% - 2 stars
1% 1% - 1 star
3% 3%
Customer feedback reports positive impressions of quality, functionality, fit and value, including a mention of use on a Polo. Colour feedback is mixed: some describe the bulbs as bright, while one report says they do not stay orange for long. For buyers choosing an amber indicator replacement, fit and colour consistency are practical points to consider alongside the listed PY21W / BAU15S specification.
Positive themes
- Customers mention good fit, functionality, quality and value.
Mixed feedback
- Colour feedback is mixed, including a report that the orange appearance does not last.
Frequently asked questions
What fitting does this bulb use?
The listing identifies it as a PY21W / 581 bulb with a BAU15S offset-pin base. Check your vehicle handbook to confirm compatibility.
How many bulbs are included?
The title and explicit contents list describe two bulbs, but a package-quantity field states 1. Check the selected listing details before ordering.
Is it described as road legal?
The listing claims E-marked road-legal compliance. That claim is not independently verified here.
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