Brand New G4LC 1.4L Petrol Engine for Kia Stonic YB 2018-2024

About this engine

This listing is for a brand-new G4LC 1.4L petrol engine suiting the Kia Stonic YB, the compact SUV Kia sold in Australia from 2018 to 2024. Like every engine we supply, it is built to OEM fitment specification, upgraded internally where the original design needed it, and hot and cold tested before crating.

The Stonic occupies a practical spot: hatchback running costs with a little extra ride height and boot space. Owners tend to keep them for school runs, commutes and weekend errands, which means an engine failure hits a car that is otherwise perfectly suited to its job. Rather than trading away a tidy YB or trusting a secondhand motor, a new engine restores the car for a known price.

The package includes free Australia-wide freight, a VIN compatibility check before dispatch and a 12-month or 50,000 km parts warranty. Call 1300 200 320 for anything this page does not answer.

The Stonic's 1.4, its weak points and the fix

Under the Stonic's bonnet, the G4LC is a small-capacity workhorse from the Kappa engine family developed by Hyundai and Kia for their light-car range. It is a 1.4-litre inline four-cylinder running multi-point fuel injection, dual overhead camshafts and 16 valves.

For an owner watching costs, the engineering choices are the right ones. Timing is by chain, removing the belt replacement bills that older small engines demanded. Multi-point injection sprays fuel into the intake ports, which keeps the back of the valves washed and avoids the carbon accumulation some direct-injection engines develop. Nothing about servicing it requires a dealership; the design is familiar territory for any suburban workshop.

When one of these engines does die, the story is usually mundane. A slow coolant leak that finally let the temperature spike. Oil changed on a budget schedule instead of the book. General wear after years of hard cold starts and short trips. Whatever the trigger, a small engine that has run its bearings or lost compression is rarely worth machining, because the labour and parts bill lands close to the price of a new engine without delivering one.

This unit removes that dilemma. Every component inside it is new, and the build goes beyond simply repeating the factory recipe: fitment stays OEM, while internals with documented weaknesses in the original design, among them the connecting rods, crankshaft and bearings, are specified at a higher grade. The completed engine is proven on the test stand both cold and hot before it is signed off. What goes into your Stonic is a zero-kilometre engine with documented testing behind it, not a repaired version of somebody else's problem.

Will it suit your YB Stonic?

Compatibility covers Kia Stonic YB models delivered between 2018 and 2024 with the factory G4LC 1.4L petrol engine. Some Stonic variants used other engines, particularly the smaller turbocharged unit offered in certain grades, so verification matters more than usual here. Every order is confirmed against the vehicle's VIN before dispatch; supply the 17-character number and we match the engine to your car in writing, free of charge and before any freight is arranged.

The engine is supplied as a long engine assembly. In practical terms, that is the block and head built up with every internal part installed: crank, rods, pistons, camshafts, valvegear and oil pump, all torqued and sealed to specification on the bench.

Left off deliberately, and carried over from your original engine at fitment, are the external items:

• Manifolds and throttle body
• Fuel rail, injectors and coils
• Starter motor, alternator and air-con compressor
• Sensors, looms and plastic covers
• Flexplate or flywheel and clutch parts

These components live outside the engine and are usually in serviceable condition even when the engine itself is finished. Reusing them is how a long engine keeps the total replacement cost contained, and swapping them across is routine work during the installation itself.

Every engine ships with a heat tab attached to the block. The tab is a one-way indicator: once the engine has been overheated it shows permanently, and overheating damage falls outside warranty cover. Before installation day, it is worth having the workshop test the Stonic's radiator, cap, thermostat and fans so the new engine inherits a cooling system that can actually protect it.

Ordering, freight and getting it fitted

The process runs in a fixed order for good reason. VIN first: call 1300 200 320 or send it through with your enquiry, and wait for written confirmation of fitment. Payment and dispatch follow. The crated engine then travels at no freight cost to any Australian address that can take a pallet delivery, which in practice is usually the installing workshop.

Fitting is a job for a qualified mechanic, and the warranty depends on it. Beyond the mechanical swap and parts transfer, the details that decide the outcome are fluids and cooling: correct-grade oil, fresh coolant properly bled, a verified thermostat and a pressure-tested system. Ask the workshop to document what was replaced; it is useful history for the car and supporting evidence if a warranty question ever arises.

Cover is 12 months or 50,000 kilometres from purchase, whichever is reached first, on the parts supplied. The two firm conditions are professional installation and no overheating, the latter policed by the heat tab. Neither is difficult to meet with a healthy cooling system and a competent installer.

Once the Stonic is back on the road, ease it in. Vary engine load for the first several hundred kilometres, avoid labouring it up hills at low revs, and change the oil early. A new engine treated this way settles into exactly what a YB owner wants: a quiet, economical unit that goes back to being ignored.