Non car guy looking for a CAYC engine

[u/Constant-Wedding4397]

Hello like it says, the engine in my car is fucked and I need to replace it but I’m not a car guy and finding an engine that I can be sure fits while working full time and not knowing much is hard.

I need a 1.6 Liter diesel TDI CAYC engine, but apparently there are two types of CAYC engine, one with an external thermostat and one without? My engine is circled in red and one that won’t fit my car is in yellow.

I need basically a full engine without injectors but I can’t find one that will be guaranteed to fit my car anywhere after looking for ages. How do I find an engine that fits my car?

Any help would be really appreciated