IS350jet

I was comparing part numbers of the front brake pads on the IS350 to the GS430 in hopes of finding a less dusty alternative for the IS. Turns out both part numbers are the same. However, the GS450h used a different part number. I pulled both of them out of the box to compare them and they are identical in every way as far as fitment goes. Check out the pic. The GS450h is on the left and the IS350, on the right. Could this be the dustless pad we've all been waiting for?

lobuxracer

iTrader: (2)

That is the part number in the US model GS430 TSB for the alternate, less dust, brake pad.

Flip the pads over and take some pictures of the markings. There should be some friction codes - typically FF or GG - that describe the friction material's resistance to fade.

NGG

Yes, those are the part numbers quoted in the Canadian TSB for both the GS and the IS 350. All this, and more detail is in another thread.

Dj_AmtraX

iTrader: (2)

Have you tried it? How is the performance comapred to stock?

IS350jet

The numbers won't show up in the photos. Too much reflected light. but here they are.

GS pad: NBK D6893H-FF 477-S19
IS pad: TEXTAR T4146-FF 477-S19

VikH

iTrader: (5)

Are you planning on installing them? I would be VERY interested to see the result as well. Please let us know.

Flipsonic

I realize brakes are different between IS350 and IS250. Any part# for IS250? Less dusty pads that is.

IS350jet

My IS has less than 2,000 miles on it so I won't be replacing them anytime soon. I kind of want to wait and see how this pad pans out on other cars. (Don't want to be the guinea pig!) I posted the info because I know a LOT of IS owners are very concerned about brake dust. I'm hoping this will be a good solution.

lexKimmel

I missed my appointment today I will go tomarrow to replace my pads free of charge

Hope they make less noise and less dust

clubfoot

I went in for the TSB but they installed the 30410s which are the original pads! dummies!! Lobuxracer, what can you tell us about the friction rating on the GS pads? The GS pads look as though they have a smaller surface area,...for regenerative braking!!? Not too sure now if they will perform close to the oe pads.

lobuxracer

iTrader: (2)

So they have the same range rating for hot and cold coefficient of friction - FF. However, F describes a range of friction, so these pads could very well feel different. They should perform similarly though. Anyone worried about whether they'll work or not should not be concerned - they will work. They might not feel the same though depending on where in the F range the pads are.

So the pedal might feel a little harder with the less dust pad, but the brakes will perform closer to each other than if they were in different ranges.

Click here for more than you ever wanted to know about brake friction materials.

clubfoot

OK, thanks for the info lobuxracer, I'll go see them tomorrow, twist the knife a bit