Overview
The PIAA H7 G3 LED bulb pair, part number 26-17407, is a 23-watt, 6200K white LED replacement with an H7 bulb base. It fits the 2015-2016 Porsche Cayenne in Base, Diesel, GTS, S, S E-Hybrid, Turbo and Turbo S trims.
The G3 is built around CREE XP-L chips, which deliver more light than earlier models with a wider viewing angle. The bulbs are direct fit, with OE-style connectors that seat into the factory socket without splicing, cutting or soldering. They are sold as a pair. The G3 is designed to last longer than most owners keep the vehicle, and it carries a 5-year warranty.
Key features
- CREE XP-L LEDs widen the viewing angle on a slimmer circuit board
- PIAA rates light output up to 50% higher than its earlier models
- Pulse Modulation Control reduces flicker at the lower voltage used in daytime running light mode
- A thinner main column places the LED chips closer to where a halogen filament sits
- Redesigned fan moves 70% more air and cuts resonating fan noise by 40%
- Adjustable beam allows fine-tuned alignment for precise optical output
- Cooler-running LEDs hold their output for longer over the bulb life
- Covered by a 5-year warranty from PIAA
Heat, fans and clearance
LED headlight bulbs move heat through a fan and heat sink rather than through the glass envelope, so the cooling assembly matters as much as the chips. Keep airflow clear around the back of the bulb and check the fan for dust or stalled rotation. A fan that runs noisily or not at all is a sign the bulb may be overheating, and output can drop sooner than expected.
Beam pattern is the other concern. An LED sits at a different point from the halogen filament it replaces, so a poorly seated bulb can scatter light toward oncoming traffic. Check the beam pattern on a wall after installation, and adjust the aim if the cutoff looks uneven. Some housings need a rotation to seat the bulb properly.
If a bulb fails, replace both to keep color and output matched. Inspect the OE connector for corrosion when removing the old bulb, and keep the connector dry during refitting.
Specifications
| Brand | Piaa Lighting |
|---|---|
| Part number | 26-17407 |
| UPC | 722935811017 |
| Bulb type | LED |
| Bulb base type | H7 |
| Quantity | Pair |
| Color | White |
| Color temperature | 6200K |
| Power | 23 watts |
| Fitment attribute | Direct fit |
| Compliance | Does not comply with FMVSS108 or CMVSS108 |
| Warranty | 5 years |
Vehicle fitment
The manufacturer fitment list names the 2015-2016 Porsche Cayenne in Base, Diesel, GTS, S, S E-Hybrid, Turbo and Turbo S trims. Cayenne model years outside 2015-2016 are not on that list, so they are not covered.
Other Porsche models are not covered by this list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
These bulbs run larger than stock, so check clearance inside the housing first. On certain models the dust cover may have to stay off. Road-use rules matter here: the bulbs do not comply with FMVSS108 or CMVSS108.
What’s included
Two H7 LED bulbs with OE connectors, sold as a pair.
