Aundrey

My brake booster went out on my 99 gs 300. Found a 04 gs 300 wrecked and bought brake booster from it. Will it fit is the question?

98GSOwner

From what I see online and Ebay, it appears that this part is usually listed as being for the 98-05 GS. This implies the part is the same for all Gen 2 GS. I'm sure someone else here can confirm. You can google the factory part number and see if it is the same for '04 as it is on your '99.

SpectraBlu

iTrader: (1)

Yeah it works and has a better design than your 99. I think the 01's to 05's are the better ones. Might be wrong on the year they changed the design, but you should be good with an 04. I believe the only difference is a sensor you have to swap or something like that.Hopefully someone else will chime in and confirm.Good luck

GS400V8

iTrader: (4)

Although they are different OEM part numbers, IIRC the only difference is a larger piston bore for the brake fluid for a stronger pedal feel, and I think this was actually released by Lexus when the 2001s arrived. I think SpectraBlue is right because I think you have to swap a sensor and its an enormous size like 35mm

RamAirRckt

Go to car-part.com, its connected to the hollander interchange, look up the part and see what cars are listed as donor cars.... Very enlightening on what you find and can learn