I came across a volvo N12 for sale that is model year 1987. The truck looks like it is decent shape. My concern is getting parts for it if something breaks. I don't see many parts available online. Would a volvo dealer have parts for a truck this old? How reasonable are the prices? From what I saw online, parts are extremely expensive for this truck. I am not sure what engine it has. Maybe a TD120, TD121 and a R-70 transmission. I have driven only Mack. How long do the TD 121 engines & trans go before needing a rebuild? Rebuild kits look like they are 2 to 3 times more expensive than Macks.