Brand New G4KJ 2.4L Petrol Long Engine for Hyundai ix35 2010-2015

About this engine

The Hyundai ix35 earned its place as one of Australia’s favourite compact SUVs, and thousands of 2010-2015 examples are still working hard on school runs, commutes and country trips. When the original engine reaches the end of its life, the rest of the car often has plenty left to give, which makes an engine replacement the sensible path. This listing covers a brand-new G4KJ 2.4-litre GDI petrol long engine to suit the Hyundai ix35.

Each unit is built new to OEM fitment specification, then hot and cold tested before crating. Nothing about it is reconditioned; the block, head and every internal part are new. The price includes freight anywhere in Australia, and cover runs for 12 months or 50,000 km on parts, whichever comes first. To confirm fitment before you commit, send through your VIN or phone 1300 200 320.

G4KJ 2.4 GDI: background and common problems

The G4KJ belongs to the Theta II family, the four-cylinder petrol platform that Hyundai and Kia fitted to a huge share of their mid-size vehicles through the 2010s. The family spans four main variants: the G4KE 2.4 with multi-point injection, the G4KG 2.4 used mainly in commercial models, the turbocharged G4KH 2.0, and the G4KJ, which paired the 2.4-litre capacity with gasoline direct injection. All of them use an aluminium block and head, double overhead camshafts, sixteen valves and a timing chain rather than a belt, so there is no scheduled belt replacement in the service book.

Direct injection sprays fuel straight into the combustion chamber at high pressure, which improves throttle response and fuel economy compared with the older port-injected version. The trade-off, common to most GDI designs, is that the intake valves no longer get washed by fuel and can gradually build carbon deposits over high mileages.

The Theta II is also globally documented for connecting-rod bearing wear in higher-kilometre engines, an issue significant enough to trigger recalls and extended warranty programs in some overseas markets. Once bearing wear starts, it usually announces itself as a knock from the bottom end and metal in the oil. At that stage a rebuild needs machining, a crankshaft, bearings, gaskets and the labour to strip and reassemble everything, which is why a complete new long engine is so often the more economical and lower-risk fix for an ix35 owner. Our replacement G4KJ is built to OEM fitment specification, but it is not a straight copy of the factory internals: where the original design had documented weaknesses, higher-grade connecting rods, crankshaft, bearings and other internal parts are fitted in their place.

Fitment for Hyundai ix35 2010-2015

This long engine suits Hyundai ix35 models built between 2010 and 2015 that left the factory with the G4KJ 2.4 GDI petrol engine. The ix35 range was sold with several different powertrains during those years, including diesels and smaller petrol units, so the badge on the tailgate is not enough to confirm what is under the bonnet. Fitment always comes down to the engine code, and the reliable way to establish it is through the vehicle identification number.

That is why we run a free VIN compatibility check before any engine leaves us. Email or phone through the 17-character VIN from your registration papers or the plate at the base of the windscreen, and we will verify that this G4KJ long engine matches your ix35 before you pay. It takes minutes and removes the guesswork entirely, and if your car turns out to need a different engine we will say so rather than ship the wrong one.

Because this is a long engine, your existing intake and exhaust manifolds, fuel injectors, throttle body, alternator, air conditioning compressor, power steering hardware and wiring all carry over from the old unit. A workshop will inspect these during the swap and let you know if anything worn should be renewed at the same time. Items like engine mounts, drive belts, coolant hoses and the radiator are cheap to address while the engine bay is empty, and doing them now protects the new engine from problems inherited from the old one. Installation must be carried out by a qualified mechanic; we can talk directly with your chosen workshop on 1300 200 320 if they have technical questions before the car is booked in.

What arrives in the crate

You receive a complete brand-new long engine: assembled block with crankshaft, pistons and connecting rods, plus the cylinder head with camshafts and valvetrain fitted and torqued to factory specification. It is a new engine in the strict sense, not a reconditioned or remanufactured one. Before crating, every engine goes through hot and cold testing to confirm compression, oil pressure and general running behaviour.

Ancillaries are not included, because they transfer from your old engine, and the turbocharger question does not apply here since the G4KJ is naturally aspirated. A heat tab is fitted to the engine during assembly. If the engine is later overheated the tab melts, and damage caused by overheating is not covered under warranty, so make sure the cooling system is flushed, pressure-tested and refilled correctly during installation.

The parts warranty runs for 12 months or 50,000 km, whichever comes first, and requires installation by a qualified mechanic. Freight is included Australia-wide, with the engine dispatched securely crated to your nominated workshop, business or residential address. The process is straightforward: confirm your VIN with us, place the order, and book your workshop while the engine is on its way. If you are weighing up whether the ix35 is worth the investment, our team is happy to talk through the options on 1300 200 320 before you decide either way.