That's a good car but its longevity depends on the care and maintenance the car has received during its lifetime.
Car batteries last four to five years on average.
Actually your Camry has struts but many people refer to them as shocks. Struts are used instead of shocks because they are more effiecient and last longer.
Toyota Camry
You can get it from toyota dealer, from other stores or get in Internet (google toyota oem parts). Also there are aftermarket parts. They are usually cheaper and in most cases will last as long (good brands).
Depending on quality it can last 5 years and more, but it's not guaranteed because the life span depends on in which conditions you usually drive.
There is no set answer as they can last 7 years and then again it may only last 1 year. The average is around 4 years. That is assuming the battery has never been run flat which will shorten it's life.
Average life is from 3-5 years. If you run the battery down you shorten it's life.
The #1 selling car in America is the Model T. The #1 selling car in the world is the Toyota Corolla. The #1 selling car for the last few years in America is the Toyota Camry. -I stink-
The best and most reliable used cars are generally Toyota's and Honda's. Both cars are Japanese models and tend to last as long as 15 years if well maintained.
The length of time that a battery would last in a Toyota Camry would depend on many factors. The amount of miles the vehicle is driven would be one factor. Another would be the outside temperature. The battery will last longer in warmer weather than colder weather.
Cat and ECU are covered under the 8 years/80,000 miles federal emissions warranty.
Not trying to be cute but is will last until it fails. If you change the fuel filter every 50,000 miles it may last the life of the vehicle. But then again it may fail tomorrow. There is no guarantee on a mechanic device.