Is the 4 Cyl engine dependable?

I am looking at purchasing a 1999 4Runner with the 4cyl engine. I assume this is the same 4cyl engine in the tacomas.
Are these good engines?
I have no experience with the 4cyl engine only the 6cyl.
The engine has 170,000 miles on it. What are some of the things I need to look for when considering this vehicle?

 

bulletproof

 

It's a good engine. Reliable, yes. It's got a timing chain not a belt so you're good there.

 

I have read in motor trend or some other magazine that the 3RZ motor is one of the most reliable every built.... knock on wood

 

is this a question? haha

 

Very reliable, and powerful for a 4 cyl.

 

Very reliable. Both the old, and the new.

 

Bullet Proof is an understatememnt. I had that engine in my other Tacoma. Toyota bought back my truck due to frame rust. Now I have the 6cyl, but wish I had the 4 because it would last forever.

 

I assume that the 4runner has the same 4cyl as the tacoma. correct?

 

I got a 02 Tacoma with 163,000+ on it. Runs Strong!!

 

i have a 99, with 3rz 4 cyl. it has 197k on it, ive had it since 2004, with 47k. no problems with the engine. its an awesome engine, very reliable & strong!

 

engine might be fine.. it's just the rest of the truck that falls apart...