Underneath the black plastic with the writing on each valve cover.
I use the Denso plugs in my SC400
the spark plugs are located under the cover, you must unscrew the Lexus symbol and the 3 other screws at the bottom and the 3 of the spark plugs are in front top, the other 3, back top
How do you change the spark plugs in 2001 lexus rx300?
how do you change spark plugs on 1995 Lexus es300
You have to remove the panel on the valve covers, 4 bolts, and under them are the plugs.
how would you go about changing the spark plugs in a 1999 Lexus ES 300?
2006 Lexus gs300 awd check engine on after spark plugs replaced
On a 2003 Lexus GS300, the spark plugs are located under the engine cover, which must be removed to access them. They are positioned in the cylinder head, with one spark plug per cylinder. The GS300 is equipped with a 3.0L inline-six engine, so there are a total of six spark plugs to replace if necessary.
the answer is elsewhere on this site. it appears that 3 of the plugs are on the back of the engine and you have to jack up the car to get to them....
Change spark plugs on 1999 Lexus GS300?
The 2001 Lexus IS300 uses a 2JZ-GE inline-6 Toyota engine, and has 6 spark plugs.
In the Lexus LS400, spark plugs are located within the engine's cylinder heads. You will need to remove the engine covers and intake manifold to access them easily. The LS400 typically features a V8 engine, and each cylinder has its own spark plug, making a total of eight plugs. Regular maintenance involves checking and replacing these spark plugs to ensure optimal engine performance.