The engine in the 2021 is the same it has been for a while, the 4.0 V6 is one of the most reliable engines out there. With proper maintenance you should get over 300K pretty easily with very few problems. I have 98K so far on my 2017 and have had absolutely 0 wrong with it so far. Toyotas are awesome machines, also have a 2002 sequoia with 186K no issues, brother has a 2012 tundra with 189K no issues and my dad had a 93 pickup that got 400K before giving it away to a friend who drove it for another 5+ years. Keep them maintained properly and 300K should be pretty doable in any Toyota.How do you guys think the new Toyotas will "age" I totalled my Xterra with 160k miles last month, and replaced it with a 2021 4Runner.
Mine has 190000,soild vehicle but still have to do normal maintenance,ball joints,tie rod ends,plugs,wires etc.I run amsoil front to back and did bypass tranny radiator with auxiliary unit,there is a issues there.
I think this is the funny part that most people don’t include when they express how reliable their vehicle is. It is all about the engine and people forget that this stuff is done.Mine has 190000,soild vehicle but still have to do normal maintenance,ball joints,tie rod ends,plugs,wires etc.I run amsoil front to back and did bypass tranny radiator with auxiliary unit,there is a issues there.
Going to look at a 98 with 244k owned by a Toyota mechanic tomorrow so we’ll see they said the timing belt and valve cover gaskets have been done I know it has the locker.
Just had to pull the heads and get them resurfaced so I wouldn't say it was overly difficult just a lot of parts to keep up with. Wish I would've taken it to a shop to check if the block was still square, even though the only solution is to get another block. Toyota service manuals are a lifesaver.I debated switching to a 4th Gen V8, but really like the one I have now.
How difficult did you find the head gasket fix? You had to pull the engine, correct?
Have you looked into chemical solutions for your leak? I have an F250 with a small leak. Considering: https://gobdp.com/product/head-gasket-sealer-38386/
Good reviews on the Ford forums.
I really prefer the look of the 4th gens, especially when lifted and modified, but my 3rd gen is an awesome truck.