2.0L DOHC 16-Valve Engine Complete Assembly for 2015-2020 Hyundai & Kia

A quick look at your own vehicle makes sure the right engine shows up:

• Verify the 8th digit of the VIN matches the correct code for your vehicle (A for Santa Fe, B for Sonata, 2 for Optima, 1 for Sorento).
• Verify the engine code stamped on the front of the block near the transmission bellhousing reads G4KH.
• Confirm whether your vehicle is Front-Wheel Drive (FWD) or All-Wheel Drive (AWD).
• Confirm your original engine is a 2.0L Turbo, as this will not fit naturally aspirated 2.0L or 2.4L models.

What the install really takes — plan and budget with confidence:

Special tools this job needs:

• Engine hoist and load leveler
• High-quality torque wrench
• High-pressure fuel line disconnect tool
• Fuel injector puller/installer tool
• Professional-grade scan tool

Budget for these consumables at install:

• Fresh OE-spec 5W-30 or 5W-20 Full Synthetic oil
• Genuine OEM Kia/Hyundai oil filter
• Fresh phosphate-free organic acid technology (OAT) or ethylene glycol-based coolant
• New intake manifold gasket
• New exhaust manifold / turbocharger gasket set
• New thermostat and thermostat gasket
• New front and rear crankshaft main seals
• New OE-spec iridium spark plugs
• New OEM turbocharger oil feed line
• New one-time-use high-pressure fuel pipe

What your vehicle’s computers will need after the swap:

What’s involved: Crankshaft Position (CKP) Sensor Relearn, ECU adaptive value/fuel trim reset, and KSDS software update.

A dealer-level scan tool (Kia KDS / Hyundai GDS) or advanced aftermarket equivalent is required to perform the CKP relearn, reset adaptive values, and ensure the critical Knock Sensor Detection System (KSDS) software update is installed to protect against bearing failure.

Pro tips for a smooth first start-up — hand them to whoever does the install:

• AWD vs. FWD Oil Pan & Bracket Swap: If swapping between AWD and FWD vehicles, you must transfer the upper and lower oil pans, intermediate shaft bracket, and transfer case mounting brackets from the original engine.
• Turbocharger Priming: You must prime the turbocharger with fresh oil before starting the engine for the first time by cranking the engine in short intervals with ignition/fuel disabled.
• High-Pressure Fuel System Safety: The metal high-pressure fuel pipe connecting the pump to the rail is a one-time-use part. Reusing it can cause microscopic fuel leaks and severe engine fire hazards.
• Torque-to-Yield (TTY) Bolts: Cylinder head bolts, connecting rod bolts, and crankshaft balancer bolts are TTY and must be replaced with new OEM fasteners.
• KSDS Software Update: Ensure the vehicle's ECU has the latest Knock Sensor Detection System software update installed by a dealer after installation.
• Intake Manifold Cleaning: Thoroughly clean the intake manifold and intercooler system of any oil or metal debris from the previous engine failure to prevent ingestion.

Easy to get right once you know them:

• Reusing the metal high-pressure fuel pipe, which leads to high-pressure fuel leaks and engine bay fires.
• Using cheap aftermarket oil filters, which cause low oil pressure warnings, knocking, and eventual bearing failure.
• Reusing the old turbo oil feed line, which can trap metal shavings and sludge from the previous engine failure and destroy the turbo.
• Failing to verify drivetrain layout (FWD vs AWD) and discovering mid-installation that the transfer case does not align with the engine block.
• Ignoring the KSDS software update, leaving the replacement engine vulnerable to the well-documented rod bearing failures.
• Not checking the oil level frequently, assuming it will remain fine between standard oil changes despite known oil consumption tendencies.

Not issues with the units on this page — the manufacturer documented these for every engine of this family, wherever you buy one. Handy for your installer: