Tinwan

Hi all,
I have not had much luck in finding out if this project is worthwhile or not. Not one of the sites I requested information has replied so business must be good. The best site for Tec info seems to be Ledtronics as they make lamps with side & front light projection with up to 24 led's per bulb. Ref : <a href="https://www.netdisty.net/ds/aut1157/default.asp" target="_blank">https://www.netdisty.net/ds/aut1157/default.asp</a>

Their site also refers to the Osram/Sylvania site Ref: <a href="http://www.sylvania.com/auto/carapp/" target="_blank">http://www.sylvania.com/auto/carapp/</a> provides car brand & model type (bulb type as below) with reference to the industry part number & the conventional bulb function although these numbers don't seems to match with the cross-reference provided for application of Ledtronics models. The Porsche owners manual only refers to the function & wattage rating of the bulb & not the industry part number noted on these 2 sites, So the problem is which LED replaces which bulb on the 964 as these LED units are not cheap so to get the correct replacement is very important. Has anyone bought from Ledtronic’s or has anyone have the correct industry reference numbers for the bulb set on the 964 C4 ?

SYLVANIA Lamp Replacement Guide
PORSCHE 1990 911

Parking light
Part number = 7528

Front turn signal 21 W
Part number = 7528

Rear turn signal 21W
Part number = 7506

Tail light
Part number = 7528

Stop light 21,5 W
Part number = 7528

High mount stop light
Part number = 7506

Fog/Driving light
Part number = H3-55W

License plate
Part number = 3893

Back up light
Part number = 7506

Front sidemarker
Part number = 3893

Rear sidemarker
Part number = 3893

Dome light
Part number = 6411

Instrument-general
Part number = 2721

Thanks for any help, Mark