Breakdown of koukanbuhin ga todokimashita.

Questions & Answers about koukanbuhin ga todokimashita.
It is read:
こうかんぶひん が とどきました。
Breakdown:
- 交換部品 = こうかんぶひん
- が = が
- 届きました = とどきました
Natural pronunciation keeps the sentence flowing together, so it sounds like:
こうかんぶひんが とどきました。
交換部品 means replacement part or replacement parts, depending on context.
It is made of:
- 交換 = exchange, replacement
- 部品 = part, component
So together, it refers to a part used to replace a broken or faulty one.
が marks the grammatical subject of the sentence: the thing that arrived.
So in this sentence:
- 交換部品 = the replacement part
- が = is the thing that
- 届きました = arrived / has arrived
So the sentence is structured like:
The replacement part + arrived
Japanese often uses が when introducing or identifying what did the action, especially in a neutral statement like this.