Description

Hyundai / Kia G4NB 1.8L Cylinder Head Assembly – Valves & Camshafts Pre-Installed

This G4NB cylinder head assembly is a brand new, factory-fresh cylinder head built to OEM standards. It comes with the complete valvetrain pre-installed, including intake and exhaust valves, valve springs, camshafts, hydraulic lifters and all related internal components. You simply transfer your existing external parts – saving significant time and labour during installation.

The G4NB is a 1.8-litre 4-cylinder petrol engine from the Hyundai/Kia Nu engine family, produced from 2010 to 2016. It features a lightweight aluminium cylinder block and head, a DOHC 16-valve valvetrain with Dual CVVT (continuously variable valve timing on both intake and exhaust camshafts), a maintenance-free timing chain with hydraulic tensioner, and multi-point fuel injection (MPI). The engine uses a variable intake system (VIS) and delivers 148–150 hp (110 kW) and 178 Nm of torque[reference:0][reference:1]. This cylinder head is manufactured to exact original tolerances and pressure-tested for reliable, long-lasting performance.

What’s Included – Complete Cylinder Head Assembly

This listing is for the cylinder head with the following components pre-installed and ready to use:

• Cylinder head casting – precision-machined, pressure-tested
• 16 valves – intake and exhaust valves, heat-resistant (4 per cylinder)
• Valve springs, spring seats and retainers
• Valve stem seals (already fitted)
• Valve guides (pressed in)
• Camshafts – intake and exhaust (DOHC)
• Hydraulic lifters / tappets (pre-installed)
• Camshaft bearing caps and bolts (torqued to specification)
• Core plugs and oil gallery plugs (installed)
• Valve clearances pre-set – no manual adjustment required

Note: This is a cylinder head assembly, so the following external components are NOT included and must be transferred from your old head or purchased separately:

• Valve cover / rocker cover
• Timing chain, tensioner and guides
• Fuel injectors and ignition coils
• Intake manifold (with VIS variable intake system)
• Exhaust manifold
• Camshaft sensors, CVVT oil control valves and wiring

Vehicle Compatibility

The G4NB 1.8L engine was fitted to a range of Hyundai and Kia mid-size models. Always verify your engine code and OEM part number before purchase. Common applications include:

• Hyundai Elantra V (MD/UD) – 1.8 MPI (2010 – 2015)
• Hyundai i30 II (GD) – 1.8 MPI (2011 – 2017)
• Hyundai Mistra – 1.8 MPI (2013 – 2017)
• Hyundai ix35 – 1.8 MPI (2010 – 2015, select markets)
• Kia Forte – 1.8 MPI (2013 – 2016)
• Kia Cerato III (YD) – 1.8 MPI (2012 – 2016)
• Kia K4 – 1.8 MPI (2014 – 2017, select markets)
• Other vehicles equipped with the G4NB engine (confirm via OEM number)

Why Choose This G4NB Cylinder Head Assembly

• 100% brand new – never reconditioned or repaired
• Pressure-tested and vacuum-tested for leaks
• OEM-grade materials and exact machining tolerances
• Pre-installed valves and camshafts save hours of fitting time
• Comes with an 18-month warranty for peace of mind
• Packed in a reinforced crate for safe international freight
• Fast global shipping to port or door

If you need a Hyundai G4NB cylinder head for sale or a complete replacement head assembly, this unit gives your engine a factory-fresh start. Order now for a reliable, direct-fit solution.

More Cylinder Heads & Quick Contact

• Browse more cylinder heads: View our complete cylinder head catalog for Hyundai and Kia.
• Need help? Contact us directly on WhatsApp for fast compatibility checks and shipping quotes.

Additional Technical Resources

• Hyundai Nu engine family on Wikipedia – technical background.
• Detailed G4NB engine specifications at mymotorlist.com – torque, power and service data.