Which vehicles does this G4KJ engine fit?

It is listed for 2011-2016 Hyundai Sonata, 2011-2018 Kia Optima, 2014-2019 Kia Sportage, 2014-2020 Kia Sorento, 2014-2019 Hyundai Tucson and 2015-2018 Hyundai Santa Fe Sport, all 2.4L. Confirm your year, model and trim before ordering.

Is this a long block or a short block?

It is a long-block assembly, so the cylinder head and valvetrain come with the block. That makes it a fuller replacement than a short block.

What are the G4KJ's specs?

It is a 2.4L inline four with an aluminum block, dual CVVT, direct injection, a timing chain and a compression ratio of 11.3. Output is about 180-201 hp and 231-251 Nm depending on the tune.

Does it come with installation hardware or oil?

No. Plan on new engine oil, a filter, gaskets and any bolts your installer needs. Engine oil capacity is 5.8 quarts.

Should I buy this instead of a used engine?

A new assembly avoids unknown mileage and wear, but it costs much more than a salvage engine. A rebuild is the middle option if your core is sound.

Is the G4KJ reliable?

The G4KJ family has a well-documented history of oil consumption and bottom-end failure. A fresh assembly avoids inherited wear, but keep up with oil changes and watch oil level.

Where is the Long Black Engine Assembly G4KJ 2.4L GAS cheapest?

At Walmart, for $2,099.99, as of our latest check.

Where can I buy the Long Black Engine Assembly G4KJ 2.4L GAS?

2 stores we checked sell it, including Walmart, Amazon.

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Long Black Engine Assembly G4KJ 2.4L GAS

Best price now

$2,099.99at WalmartChecked Nov 13

Compared across 2 stores. Prices are checked against each store and labelled with when.

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What reviewers say

Owners of G4KJ-equipped Hyundais and Kias report strong power and decent fuel economy, but the engine family is widely criticized for oil consumption, knocking and premature failure. Many report success with a replacement assembly, while others warn about fitment and warranty paperwork.

What people mention

Oil consumptionCriticisedOwners report the G4KJ burning oil between changes, sometimes enough to require topping off weekly.
Engine failureCriticisedKnocking and seized bearings are a recurring complaint on original G4KJ engines.
PowerPraisedDrivers find the 2.4L adequate and smooth for sedans and small SUVs.
Timing chainPraisedThe chain drive is seen as one less maintenance item than a timing belt.
FitmentMixedBuyers say the engine drops in cleanly when the year, model and trim match, but mismatches cause problems.

About the Long Black Engine Assembly G4KJ 2.4L GAS

This is a 2.4L gas engine assembly, factory code G4KJ, for select Hyundai and Kia vehicles. It is a 2.4 L four-cylinder DOHC 16-valve engine with Dual CVVT and direct injection. The cylinder block is aluminum, and the timing drive is a chain.

The assembly includes the engine block group, cylinder block, cylinder head, oil pan, crank connecting rod mechanism, pistons, connecting rods, crankshaft, valve train, camshaft, intake and exhaust valves, valve tappets, timing gear, timing chain and timing belt. Check the listing pictures for the exact parts in the kit.

Instructions are not included, and professional installation is recommended. If you are unsure of fitment, check the photos or the part number against your original part and VIN.

Engine type

2.4 L4 DOHC 16v Dual CVVT, gas

Factory code

G4KJ

OEM make

Hyundai/Kia

Displacement

2359 cc

Fuel system

Direct injection

Power output

180-201 hp