how long do the stock spark plugs last?

what else should i do to my maxima it has 170k miles.

I replaced the air/fuel filter
tranny fluid
coolant
oil of course every 3k
rotors/brakes
new brake fluid
new alt
newer air compressor on the way
newer starter
semi new battery
newer tires


I cant think of anything else

I want to get another 2 yrs out of the car and than hand it down to my brother.

 

What are spark plugs?... Does your car have acc belts?

 

all the belts are changed too

 

You should be set then


......Stock plugs 60k... 100k by todays standard.. But back in 95... recommended change @ 60k...
NGK ------ > PFR5G-11 or BKR5E-11

 

missed the fuel filter doing mine this weekend also putting in ngk copper plugs
seem to work fine with everyone on here

 

how long ago did u change the water pump?

 

still orginal, I talked to my buddy about helping me to replace it, he told me to change it when it starts making noises

 

60k for the spark plugs