Bicu kereta itu di tempat persinggahan.

In Malay, noun combinations often put the main noun first and the describing noun after it.

So:

• bicu = jack
• kereta = car

Together, bicu kereta means car jack, literally jack for a car.

This is a common difference from English, where the describing noun usually comes first.

In Malay, demonstratives like ini and itu normally come after the noun phrase.

So:

• bicu kereta itu = that car jack / the car jack

Here, itu modifies the whole noun phrase bicu kereta, not just kereta by itself.

It can do either job, depending on context.

itu literally means that, but in real Malay it also often helps mark something as specific/known, which can sound like English the.

So bicu kereta itu could be understood as:

• that car jack
• the car jack

The exact choice in English depends on the situation.

Malay often leaves out the verb to be in simple sentences, especially when talking about:

• identity
• description
• location

So Bicu kereta itu di tempat persinggahan naturally means The car jack is at the rest stop even though there is no separate word for is.

A more explicit version would be:

• Bicu kereta itu berada di tempat persinggahan.

That sounds a bit fuller or more formal.

di is a preposition of location. It usually means at, in, or on, depending on the context in English.

Here:

• di tempat persinggahan = at the rest stop / in the stopping place

A useful spelling point: this di is written separately because it is a preposition.

Compare that with the passive prefix di-, which is attached to verbs, for example:

• dibuka = opened
• diambil = taken

It is a noun phrase made of:

• tempat = place
• persinggahan = stopping place, stopover, resting place

So tempat persinggahan means something like:

• rest stop
• stopover place
• stopping place

The best English translation depends on the context.

The sentence is understandable and acceptable, especially in a simple or context-heavy situation.

However, many speakers would also say:

• Bicu kereta itu berada di tempat persinggahan.
• Bicu kereta itu ada di tempat persinggahan. (more conversational)

So the original sentence is fine, but adding berada or ada can sound more explicit.

Yes, you could say that if you want to make the location specific too.

Compare:

• Bicu kereta itu di tempat persinggahan.
  = The/that car jack is at a rest stop / at the rest stop understood from context.

• Bicu kereta itu di tempat persinggahan itu.
  = The/that car jack is at that rest stop.

Malay often leaves definiteness to context, so it does not always need an itu on every noun phrase.