The 23250-74080 part number is for the denso 312cc injector which should be stock in your car... you would be looking for a denso part number that would be wrong.... Check out sard injectors... they have a listing for a high impedance (very important) top mount denso style injector... do a search on "sard" and you will find them......
I use the Denso plugs in my SC400
Hate to say it but probably the Stealership.
For a 1996 Lexus LS400, it's recommended to use NGK or Denso spark plugs, specifically the NGK ZFR6F-11 or Denso IK20. These plugs are designed to provide optimal performance and fuel efficiency for the 4.0L V8 engine. Always consult your owner's manual or a trusted mechanic for specific recommendations and maintenance tips.
On a Lexus LS 400, the fuel injectors are located on the engine's intake manifold, specifically within the cylinder heads. To access them, the intake manifold usually needs to be removed, as the injectors are inserted directly into the engine's intake ports. This positioning allows them to efficiently deliver fuel into the combustion chamber.
Cleaning the fuel injectors is a good start.
How do change Fuel injectors on GS300 2000
believe it or not the starter is located usually under the fuel injectors just in front of the windshield area.
my Lexus rx300 misfired as well and i took it to the mechanic and it was the fuel injectors that where dirty because of bad gas
intake, exhaust, fuel pump, and injectors there a number of bolt ons and theres always turbos and superchargers. http://www.lextasy.com/IS300_intakes_ctg.htm ----
Fuel filter, fuel pump, or pressure bypass/relief valve is not providing the correct, enough fuel pressure at the injectors.
To install fuel injectors on a 1993 Lexus GS 300, first, disconnect the negative battery terminal and relieve fuel pressure by removing the fuel pump fuse and running the engine until it stalls. Next, remove the intake manifold to access the fuel rail. Disconnect the fuel rail from the engine, remove the old injectors, and replace them with new ones, ensuring proper O-ring placement. Finally, reassemble everything in reverse order, reconnect the battery, and check for leaks.
A lexus is made by toyota they use the same parts most of which are made by denso,aisin corporations most of your parts such as plug wires ignition coils radiator,spark plugs,starter,etc are denso made and other parts such as water pump,and timing components are made by aisin. it is not a good idea to use parts made by ac delco or delphi these are used mainley used by general motors. motorcraft is a ford,lincoln,mercury part brand mopar is made by daimler chryler dodge,jeep,chrysler if you want good replacement parts for your toyota,lexus,scion use beck arnley parts these are basically oe parts just repackaged and sold at a lower price but yes lexus,toyota,scion are toyota brand vehicles for example the 1998 toyota camry and the lexus es300 are the same car under the hood the interior and body styling is all that sets them apart.