الميكانيكي ركب قطعة غيار.

A common Levantine-style pronunciation is:

il-mīkānīkī rakkab qiṭʿit ġiyār

A few useful notes:

• الـ is usually pronounced il- or el- in Levantine, not al-.
• In many urban Levantine accents, ق in قطعة may sound like a glottal stop, so you may hear something closer to 'iṭʿit ġiyār.
• Pronunciation varies by region, so do not worry if you hear slightly different versions.

Because الـ is the Arabic definite article, meaning the.

So:

• ميكانيكي = mechanic
• الميكانيكي = the mechanic

In Levantine, الـ is usually pronounced il- / el-. Also, م is a moon letter, so the l sound stays: il-mīkānīkī, not something doubled.

It is a borrowed word that has been adapted into Arabic. It comes from the same source as English mechanic and is very common in everyday speech.

This is normal in Levantine and other Arabic varieties: many modern job titles and technical words are loanwords, but they behave like regular Arabic nouns once speakers use them.

Because Arabic writing usually leaves out short vowels and often leaves out the shadda too.

In this sentence, the intended verb is:

ركّب = he installed / fitted / put in

Without the shadda, ركب could also be read as a different verb meaning he rode. But the context makes the meaning clear:

• The mechanic
• a spare part

So here it clearly means installed.

Here ركّب means installed, fitted, or mounted.

It is a very natural verb when talking about mechanics, technicians, and parts. It often gives the idea of putting something into place so it functions as part of a machine or object.

So in context, ركّب قطعة غيار means something like:

• installed a spare part
• fitted a replacement part

Because Arabic does not have a separate indefinite article like English a/an.

So:

• قطعة غيار = a spare part
• الميكانيكي = the mechanic

Arabic marks definite nouns with الـ, but indefinite nouns usually appear with no extra word.

This is a very common Arabic noun phrase type.

• قطعة literally means piece
• غيار means replacement / spare

Together, قطعة غيار means a spare part

You can think of it roughly as:

a piece for replacement → a spare part

This is not a normal adjective pattern like in English. It is more like a fixed noun + noun expression.

Because غيار here is not behaving like a regular adjective. It is part of a fixed noun expression.

That is why you do not treat it like a feminine adjective agreeing with قطعة. Instead, the whole phrase قطعة غيار functions together as the idea spare part.

This is a useful thing to remember: not every word that looks descriptive in translation is grammatically an adjective in Arabic.

Because the verb already includes that information.

ركّب by itself means:

• he installed
• past tense
• third person
• masculine singular

So Arabic often leaves out the subject pronoun هو unless it is needed for emphasis.

That means:

• ركّب = he installed
• هو ركّب = he installed with extra emphasis on he

Yes. That is also correct.

Arabic allows more than one natural word order. For this sentence, both are possible:

• الميكانيكي ركّب قطعة غيار
• ركّب الميكانيكي قطعة غيار

In everyday Levantine, subject + verb + object is very common, so the version you were given sounds very natural in speech.

It sits in a space that is understandable in both.

The vocabulary is perfectly normal for everyday Levantine, but the spelling looks neutral enough that it could also appear in Standard Arabic.

What changes most in Levantine is:

• pronunciation: الـ becomes il-/el-
• often ق changes in speech
• case endings are not used in normal speech

So the sentence is absolutely usable for a Levantine learner, especially as spoken language.

Because in normal Arabic writing, short vowels are usually omitted, and in spoken Levantine the formal case endings of Standard Arabic are not used.

So learners will usually see:

الميكانيكي ركب قطعة غيار

not a fully vocalized version.

This is completely normal. Native speakers rely on context to understand the intended reading.