GSa

Hi, I bought a timing belt/water pump kit off ebay for my 99 LS400. There is a rectangular gasket that Aisin no longer includes with their water pump that I need. I talked to the company that I bought the kit from they gave me the part number for the same gasket for a Toyota Tundra 4.7l, which is not right and I talked to 3 lexus parts guys and my mechanic and somehow none of them could figure this out.

I will include a picture of where this gasket fits to on the water pump. I figure you guys are the real experts.

sha4000

iTrader: (1)

There's no gasket. Your supposed to use FIPG ( fixed in place gasket ). Just go to any parts store and get the Permatex FIPG. I believe it's the one in the grey tube.

aptoslexus

delete. Wrong part.

mikaelse

Original gasket was black silicone? . No other gasket . Feels better with some gasket material there to give some Surface pressure to whole surface. I bought general gasket material sheet 0.4 mm (1/64") thick. Cut out a gasket with a scalpell and used Permatex on both sides. Sealed well.

paulo57509

If you want to use a gasket, you need Fel-Pro P/N 35941.

aptoslexus

Nope. Doesn't fit. Only way I've seen to get a gasket is to order the Beck Arnley water pump kit that includes the gasket. There's a Fel-Pro 35552 that fits 90-96, but apparently not the later models.

Banshee365

You must not work on Lexus/Toyota's much. They use FIPG almost everywhere. I use the stuff from the dealer it's really good stuff. Your oil pan, transmission pan, rear diff and the water pump port are a few of the things assembled with FIPG. The thermostat housing has a groove machined in it to run the thin bead of FIPG in to seal to the water pump. I've done this many many times and never had a leak, especially with the OEM FIPG from the dealer.

GSa

Ok, well thanks a lot you guys are great help. Amazing how no lexus parts guys could figure that out, on top of the company that sold me the part. This is what my mechanic said he would do anyhow if I couldn't find the (non-existent) part. Thanks again.

timmy0tool

iTrader: (7)

yep FIPG is what you need to use. look at your old part, FIPG is there.

paulo57509

My mistake. Fel-Pro P/N 35941 is for the bypass.