Hyundai Kia G4KK 2.4L L4 Remanufactured Engine – 2011-2015

Description

Command 159 horsepower and 154 lb-ft of continuous Atkinson-cycle torque while maintaining exceptional fuel thrift across demanding municipal passenger shuttle corridors through precision diamond plateau cylinder honing in the Hyundai Kia G4KK 2.4L Remanufactured Engine. Built for 2011 to 2015 commercial hybrid passenger platforms, this 2.4-liter Dual CVVT powertrain outputs generous pulling muscle and verified thermal stamina.

An open-deck aluminum block features centrifugally cast iron cylinder liners honed with diamond stones to Ra 28 micro-inches. The rotating package pairs a forged steel crankshaft with precision-machined rod journals, forged steel connecting rods, and hypereutectic pistons with graphite skirt coatings. Equipped with Atkinson cycle intake timing geometry, an aluminum lower bedplate, a dry weight of 305 lbs, and a 4.5-quart oil capacity, internal tolerances remain consistent under continuous load.

Key Features of Hyundai Kia G4KK

Fleet transportation supervisors buy Hyundai Kia G4KK 2.4L remanufactured engine models to maintain hybrid passenger car operations without incurring new vehicle purchase expenses. Automated cold-spin testing verifies hydrodynamic bearing oil film retention across every single crankshaft journal before transport packaging.

• Atkinson cycle intake camshaft timing delays valve closing to maximize expansion ratio efficiency.
• Multi-layer steel cylinder head gaskets maintain combustion containment during severe summer heat cycles.
• Precision micro-polished rod journals establish correct oil film clearance to prevent premature bearing wear.
• Cast aluminum lower block girdle locks main bearing caps rigid under peak acceleration.
• High-pressure internal trochoid oil pump feeds 55 PSI through clear block lubrication galleys.
• Dynamic mass balancing keeps harmonic rotating unbalance below 0.5 gram-inches.
• This Hyundai Kia G4KK crate motor connects straight to factory hybrid drive electric motor bell housings.

Hybrid Atkinson Dynamic Thermal Bounds

Engine lubrication maintains 20 PSI at warm idle and stabilizes between 50 and 65 PSI at 3000 RPM cruising speed. Coolant temperature operates from 185°F to 200°F via the primary thermostat circuit. The engine outputs 159 continuous brake horsepower at 5500 RPM and 154 lb-ft torque at 4500 RPM. A 10.5:1 compression ratio yields 170 to 185 PSI cranking compression across all four cylinders. Rated for High-Mileage Freight service, radiator heat rejection reaches 2,900 BTU/min under continuous hauling.

Hybrid Driveline Snout Dimensions

The rear crankshaft flange uses an 8-bolt flexplate bolt circle machined for hybrid traction motor clutch units. Pilot bore diameter measures 0.826 inches with concentricity verified within 0.0008 inches to prevent electric motor air-gap deflection. Front crankshaft snout measures 1.181 inches with a precision keyway, holding crank thrust endplay within 0.003 to 0.006 inches.

Priming Procedures Service Guidelines

Technicians must prime the lubrication channels using an external oil priming container through the oil pressure sensor port before initial starting. Fill with 5W-20 motor oil and clear air from the cooling system using vacuum filling equipment. This powertrain is not engineered for forced induction turbochargers exceeding 5 PSI boost, nitrous systems, or racing competition.

• Check crankcase motor oil level and hybrid inverter coolant levels each shift.
• Change engine motor oil and filter every 4,000 miles or 150 hours.
• Inspect timing chain condition and hybrid drive clutch surfaces every 12 months.

Commercial Warranty Crate Manifest

Protected by an extensive 3-Year / 100,000-Mile commercial fleet warranty covering parts and labor standards. Transport crate contents include the remanufactured long block engine, high-capacity oil pump, full vehicle installation gasket set, water pump inlet o-ring, pre-lube instruction sheet, and dynamometer cold-test validation reports.