Part Numbers + Mapping To Toyota

[rtd111]

If it matters, I have an LS400, 1991, 172K miles

I found http://www.toyodiy.com/parts/ for my part numbers. When I go to a Toyota parts site, I don't get any hits, though I am pretty certain there is an equiv number for most of the common parts. A good example is the Oil Filter: 90915‑20002 maps to 90915-YZZD3

Specifically, I am looking to replace my timing belt, water pump, et al. I want to use OEM parts. I found the numbers on the toyodiy site and would like to know how I can get these from a Toyota dealer (and not a Lexus dealer, for obvious reasons).

Any ideas?

Net net: anyone know Toyota part numbers for 91 LS400 for all the timing belt components (belt, idler, ...) and water pump?

Thanks in advance.

[1990LS400]

Your question has been asked many times but I don't remember anyone finding much of a correlation between pre-1998 Lexus LS parts and Toyota brand parts. Of course there is a lot of correlation between parts on the ES and Camry.

There are a number of engine parts -- such as the idler and tensioner -- that are the same on the 98-00 Lexus LS400 and the 98-00 Toyota Landcruiser -- probably because the 4.7 litre V8 was used in the Landcruiser beginning with the 98 model year.

But even on the parts shared between the 98-00 LS and 98-00 Landcruiser, discount on-line parts sellers like parts.com sell the parts for the same prices regardless if you look up the parts in the Toyota or Lexus sections of their catalog.

I think the 90915‑20002 part number may have been for the Toyota/Lexus V8 engine oil filter way back when it was manufactured in Japan. The 90915-YZZD3 part number is for the oil filter when production of it was moved to Thailand.

We've had a 98 Camry for nearly 13 years so I'm occasionally in a nearby Toyota dealer buying stuff for it. The Toyota parts guy tried several times to get parts for the 90 LS I used to have but never had any luck -- except for oil filters and oil plug gaskets since the 98-up Landcruiser V8 uses the same oil filter and most (all?) Toyota and Lexus cars use the same oil plug and oil plug gasket. The last several 10-packs of oil filters with 10 oil plug gasket for our LS400s have cost $40 at the Toyota dealer. I remember back in the early 90's when the local Lexus dealer was charging about $13 each for the same (but with the 90915‑20002 part number) oil filter.

I do remember my 90 LS using one part that a Toyota Supra also used but I can't remember which year Supra -- the part was a horn relay.