May garantiya ang piyesa.

In this sentence, may expresses existence or possession. A very literal way to think of it is there is.

So May garantiya ang piyesa is structurally like:

• May garantiya = There is a warranty
• ang piyesa = the part / the item being talked about

In natural English, this often becomes The part has a warranty.

So Filipino uses may where English often uses have/has.

Because Filipino commonly expresses possession with may instead of a verb equivalent to English have.

Compare the idea:

• English: The part has a warranty.
• Filipino: There is a warranty for/on the part.

That is why the sentence does not need a separate verb like has.

Because in a may sentence, the noun after may is usually the thing that exists or is possessed, and it normally appears without ang.

Here:

• may garantiya = there is a warranty
• ang piyesa = the topic or the thing being described

So the sentence is talking about the part, and saying that it comes with or has a warranty.

If you said ang garantiya, that would shift the focus and create a different structure.

Ang piyesa is the topic of the sentence—the thing being talked about.

A helpful way to read the structure is:

• As for the part, there is a warranty.

That is why the most natural English translation is The part has a warranty, even though the Filipino structure is closer to There is a warranty for the part.

After may, the noun is usually left in its plain form, without ang.

So:

• may garantiya = correct
• may ang garantiya = not correct

This is a common pattern in Filipino:

• May pera ako. = I have money.
• May trabaho siya. = He/She has a job.
• May garantiya ang piyesa. = The part has a warranty.

Yes. That is also correct.

These two sentences mean essentially the same thing:

• May garantiya ang piyesa.
• Ang piyesa ay may garantiya.

The difference is mostly in word order and style:

• May garantiya ang piyesa sounds very natural and straightforward.
• Ang piyesa ay may garantiya feels a bit more explicitly topic-comment, and sometimes slightly more formal or emphatic.

Both are good Filipino.

They are closely related.

• may = short, very common form
• mayroon = longer form, often a bit more formal
• meron = common conversational form of mayroon

In many everyday sentences, they can express the same basic idea. But may is especially common directly before a noun:

• May garantiya ang piyesa.

You will also hear:

• Mayroon/Meron bang garantiya ang piyesa?
• Meron. = There is / It has one.

So for this sentence, may is the most compact and natural choice.

Piyesa usually means part, component, or spare part, especially in practical contexts such as:

• cars
• machines
• appliances
• repairs

So in many real-life situations, piyesa would refer to a replacement part or mechanical component.

Yes, it can mean either, depending on context.

In real-world usage, garantiya often corresponds to:

• warranty for products, parts, repairs, appliances, etc.
• guarantee in a broader sense

In a sentence about a piyesa, English speakers will often think of warranty first.

No, it is a borrowed word, ultimately from Spanish (garantía). Filipino contains many common borrowed words, especially in business, law, mechanics, and daily life.

That is very normal, and learners will see many words like this.

Yes. That is a very good way to understand the structure.

Depending on how natural you want the English to sound, you can think of it as either:

• The part has a warranty
• There is a warranty on the part

Both match the Filipino sentence well.

You would usually replace may with wala:

• Walang garantiya ang piyesa.

That means:

• The part has no warranty
• There is no warranty on the part

This is a very useful pattern:

• may = there is / has
• wala = there is not / does not have

Yes, very often. The pattern is:

• May + thing possessed/existing + ang + topic/owner

Examples:

• May sira ang kotse. = The car has damage / There is something wrong with the car.
• May takip ang lalagyan. = The container has a lid.
• May pangalan ang gusali. = The building has a name.

So May garantiya ang piyesa follows a very common and useful Filipino sentence pattern.