A complete automatic gearbox stripped down to its parts for overhaul at the Gearbox King workshop in Singapore

Gearbox Overhaul Specialist

Gearbox Overhaul Singapore

Jerking, slipping, or stuck in limp mode? Get a proper diagnosis and an honest quote before any work starts. Every overhaul is backed by a 2-year, 40,000km warranty.

Rated 5★ by 101+ drivers on Google

Fully rebuilt gearbox, backed by a 2-year, 40,000km warranty

Never Pay For a Gearbox Twice

Gearbox specialist at the Gearbox King gearbox repair and overhaul workshop in Sin Ming AutoCity, Singapore

Best gearbox overhaul in Singapore

0% Risk0% Guessing0% Headache

When your gearbox fails, the worry is the unknown. You do not know what is wrong, or whether it will be put right properly. We take that worry away. We confirm the exact fault first, explain it in plain English, and quote before any spanner comes out. No guessing. No parts you do not need.

An overhaul is a full rebuild, not a patch. Worn parts go, quality parts go in, and the box is reassembled to spec and tested before it goes back to you. Every overhaul is covered for two years or 40,000km, whichever comes first. In writing, not in passing.

2 Years, 40,000km

Every gearbox overhaul is covered for two years or 40,000km, whichever comes first. In writing, not in passing.

A Full Rebuild

An overhaul is not a patch. The box comes out, every part is checked, worn ones are replaced with quality parts, and it goes back to spec.

Diagnosed First, Then Quoted

We confirm the actual fault before touching anything, then quote. No guesswork, and no parts you don't need.

Free Towing

If the car won't move, we collect it. Free towing for gearbox repairs, anywhere in Singapore.

Get a Quote

Bring it in if you notice:

5★ from 101+ Google reviews

★★★★★

my Mazda CX-5 gearbox began jerking when car is cold so I asked around and found this shop. They performed a full overhaul on the transmission. The SUV now changes gears smoothly during normal driving. Service was completed on time and the final bill matched the initial quote.

Sayantani G. · Mazda CX-5

★★★★★

Took my Mercedes C-Class in because the transmission was jerking hard between gears. The guys sorted out the mechatronic unit and did a thorough service. Driving feels smooth and responsive again. Quick work, clear updates, and no hidden charges.

Xue W. · Mercedes C-Class

★★★★★

A complex job on my Porsche Cayenne Hybrid gearbox, but they nailed it. The system is now seamless, and the 2-year warranty gives real peace of mind.

Ryan F. · Porsche Cayenne Hybrid

★★★★★

Gearbox overhaul for my Toyota Corolla because it was making funny sounds. The staff were friendly and made the whole process easy to navigate. Pricing was fair -- definitely recommended to pay them a visit!

Ellie L. · Toyota Corolla

We overhaul every gearbox type. Automatic, CVT, dual-clutch (DCT) and Porsche PDK, on continental and Japanese or Korean cars alike.

Specialising in

Transmission Repair for All Brands and Models

Not sure if it's the gearbox?

Send us a message. Tell us what the car is doing and we'll tell you what is likely going on, and what it will take to put right.

We only do gearboxes

A gearbox is not the place for guesswork. One wrong call and a fluid change becomes a full rebuild.

So we keep it simple. We only do gearboxes. Overhaul, repair, servicing, mechatronics, torque converters and valve bodies, across continental and Japanese or Korean makes. It is the one job we do all day, every day.

Drive down to Sin Ming AutoCity and we'll take a look. No hard sell.

Cars on the lifts for gearbox overhaul under the Gearbox King sign at our Singapore transmission workshop

We diagnose first, then quote

Limp mode and a warning light could be a worn clutch pack. It could also be a sensor that costs a fraction to put right. The two are worlds apart on the bill.

That is why we diagnose before we quote. We confirm the exact fault, explain it in plain English, and give you a price before any spanner comes out. You decide with the full picture in front of you.

What an overhaul actually involves

An overhaul is not a patch. It is a full rebuild.

  1. Diagnosis. We pinpoint the fault with dealer-level tools before anything comes apart.
  2. Strip down. The gearbox comes out and is dismantled so every part can be seen.
  3. Inspect and clean. Gears, bearings, seals and shafts are checked one by one. Good parts stay. Worn parts go.
  4. Rebuild. Worn components are replaced with quality parts and the box is reassembled to spec.
  5. Test. We run it and check the shifts before the car goes back to you.

The warranty, in plain terms

Every gearbox overhaul is covered for two years or 40,000km, whichever comes first. That is the rebuild, in writing.

Servicing and oil changes are maintenance, not a rebuild, so they do not carry a workmanship warranty. We'll tell you straight which one your car needs.

The Gearbox King gearbox overhaul workshop at Sin Ming AutoCity, Singapore

From PDK to CVT, we know the box

Singapore's stop-start traffic and heat are hard on a transmission. Each type fails in its own way.

Automatic (AT). Fluid breaks down in the heat, clutches and solenoids wear, and shifts turn rough.

CVT. Belts and pulleys slip under load. Fluid condition matters more than most owners think.

Dual-clutch (DCT/DSG). The clutch packs and the mechatronic unit are the usual suspects, often with erratic shifts and dash errors.

Porsche PDK. A sophisticated box that takes hard, high-speed shifting to heart. We treat it accordingly.

Whatever you drive, we know how the box behaves and how to put it right.

Can't drive it in? We'll fetch it

A gearbox that has given up does not care where you are. Stuck on the expressway or sat in the carpark, the car is going nowhere.

So we come to you. Free towing for gearbox repairs, anywhere in Singapore. Send us your location on WhatsApp and we'll arrange collection.

Gearbox overhaul FAQ

Do you give a warranty on a gearbox overhaul?

Yes. Every gearbox overhaul is covered for 2 years or 40,000km, whichever comes first.

How much does a gearbox overhaul cost?

It depends on the make, the gearbox type and the extent of the damage. We diagnose first and give you a firm quote before any work starts. Typical overhaul bands by make are on our gearbox repair cost guide.

Can I pay in instalments?

Yes. Instalment plans are available via Atome, Grab Paylater and Shopee Paylater. Let us know when you come in and we'll sort it out.

How long does it take?

It depends on the make and the parts involved. We confirm a timeline once we have diagnosed your gearbox.

What if it turns out it's not the gearbox?

Then you will know exactly what it is before you spend anything. We confirm the fault before we quote.

Which cars do you handle?

Continental makes such as Audi, Volkswagen, Porsche, BMW and Mercedes, alongside Japanese and Korean cars.

What gearbox types do you overhaul?

Automatic (AT), CVT, dual-clutch (DCT) and Porsche PDK, for both continental and Japanese or Korean cars.

My car can't move. Can you collect it?

Yes. We offer free towing for gearbox repairs anywhere in Singapore. Send us your location on WhatsApp.

What is the difference between a repair and an overhaul?

A repair fixes a specific fault. An overhaul strips the whole gearbox, inspects every part, and replaces what is worn.

Is an overhaul better than a used gearbox?

Usually. A used unit from a scrapyard comes with unknown history and a short warranty. An overhaul rebuilds your own gearbox with quality parts and a 2-year warranty.

Is a gearbox overhaul the same as a transmission overhaul?

Yes. Gearbox and transmission are two names for the same unit, so a gearbox overhaul and an automatic transmission overhaul are the same job: a full strip, inspection and rebuild.

Where are you?

160 Sin Ming Drive, #03-15 Sin Ming AutoCity. Open weekdays 9 to 6 and Saturdays 9 to 4:30.

Find us

5★ · 101 Google reviews

Get your gears running smoothly

Get your gearbox sorted

Tell us what the car is doing. We'll diagnose it, quote it, and back the overhaul with a 2-year, 40,000km warranty. Instalment plans are available via Atome, Grab Paylater and Shopee Paylater.

A Gearbox King gearbox technician Free Consultation 8063 4579