Перемикач передач потребує ремонту.

Because перемикач передач literally means switch/shifter of gears.

In Ukrainian, one noun often modifies another by going into the genitive case, where English would often use of or a noun-noun compound:

• перемикач = switch, shifter
• передача = gear, transmission gear
• передач = genitive plural of передача

So:

• перемикач передач = gear shifter / gear selector
• literally: shifter of gears

This is a very common pattern in Ukrainian.

Because the verb потребувати normally takes the genitive case.

So:

• потребувати = to need, to require
• ремонт = repair
• ремонту = genitive singular of ремонт

That means:

• потребує ремонту = needs repair

This is different from English, where need takes a direct object without a case ending.

Потребує is the 3rd person singular present tense form of потребувати.

It matches the subject перемикач, which is singular:

• я потребую = I need
• ти потребуєш = you need
• він / вона / воно потребує = he / she / it needs
• вони потребують = they need

So in this sentence, потребує means needs.

Ukrainian has no articles.

So перемикач передач can mean:

• the gear shifter
• a gear shifter

Which one is meant depends on context.

This is normal in Ukrainian, and learners coming from English often notice it immediately.

Yes, it is understandable and natural, especially in a technical or mechanical context.

Depending on context, Ukrainians might also use other expressions, such as:

• важіль перемикання передач = gear shift lever
• ручка перемикання передач = gear shift handle/knob
• селектор передач = gear selector
• коробка передач = gearbox / transmission

So перемикач передач is fine, but the most natural choice can depend on what exact part you mean.

They are related but not the same:

• передача = a gear
• коробка передач = gearbox / transmission

In this sentence, передач belongs to перемикач:

• перемикач передач = gear shifter

It does not mean the gearbox switch. It means the device used to switch between gears.

Yes. A few common alternatives are:

• Перемикач передач треба відремонтувати. = The gear shifter needs to be repaired.
• Перемикач передач несправний. = The gear shifter is faulty.
• Потрібен ремонт перемикача передач. = The gear shifter needs repair / Repair of the gear shifter is needed.

Your original sentence is good and fairly neutral.

It breaks down like this:

• Перемикач передач = subject noun phrase
• потребує = verb
• ремонту = genitive object required by the verb

So the structure is basically:

• [subject] + [verb] + [genitive complement]

Very literally:

• The gear shifter requires repair

Yes, Ukrainian word order is more flexible than English, but the neutral order here is:

• Перемикач передач потребує ремонту.

You could also say:

• Ремонту потребує перемикач передач.

This puts more emphasis on ремонту.

Even though the order can change, the case endings help show what each word is doing.

A careful pronunciation guide is:

• перемика́ч переда́ч потребу́є ремо́нту

Approximate English-style help:

• pe-re-my-KACH
• pe-re-DACH
• po-tre-BU-ye
• re-MON-tu

A few notes:

• ч sounds like ch in church
• є in потребує sounds roughly like ye
• Ukrainian stress is important and not always predictable, so it helps to learn it word by word

Because ремонт is the dictionary form (nominative singular), but after потребувати you usually need the genitive:

• nominative: ремонт
• genitive: ремонту

So:

• Він потребує ремонту. = It needs repair.
• not normally: потребує ремонт in standard Ukrainian

For learners, this is a good example of how Ukrainian verbs often control a specific case.

Not exactly, though they are close in meaning.

• потребує = needs / requires
• треба = it is necessary / need to
• потрібно = necessary / needed

Compare:

• Перемикач передач потребує ремонту. = The gear shifter needs repair.
• Перемикач передач треба ремонтувати. = The gear shifter needs to be repaired.
• Потрібно відремонтувати перемикач передач. = It is necessary to repair the gear shifter.

So потребує is a direct verb tied to the subject, while треба and потрібно are more impersonal.

Usually it means a current state:

• The gear shifter needs repair.

The present tense in Ukrainian often works like English present tense in statements of condition or general fact. So потребує does not necessarily mean an action happening right now in the moment; it describes the item’s condition.

In context, it could mean:

• it is currently faulty
• it has reached a state where repair is necessary

Both are natural readings.