The Hyundai / Kia G4KJ is a 2.4-liter inline-four gasoline direct injection (GDI) engine from the Theta II family, produced approximately from 2009 to 2020.
It features an aluminum cylinder block and head, DOHC 16-valve configuration, and delivers roughly 184–201 hp with 241–250 Nm of torque.
The engine powers a wide range of mid-size sedans and SUVs from both brands.
The oil pump is a gerotor-type unit, frequently integrated with the balance shaft assembly and driven by the crankshaft. It supplies pressurized oil to the crankshaft
bearings, camshafts, valvetrain and piston cooling jets, ensuring reliable lubrication under the demands of a modern GDI engine. Due to known issues with
the oil pressure relief valve in some G4KJ units, a high-quality replacement pump is a common service item.
Our products are exported to various parts of the country, and the customers we have worked with have received unanimous praise. The company has invested over 20 million yuan in high-end remanufacturing equipment imported from abroad and a first-class production team in the country. Our warehouse has a total area of over 8000 square meters, with scientific management and sufficient supply of goods.
Product Name: Engine Oil Pump / Oil Pump and Balance Shaft Assembly
Vehicle Brands: Hyundai and Kia
Engine Code: G4KJ
Engine Family: Theta II
Engine Displacement: 2.4L / 2,359 cc
Fuel Type: Gasoline
Fuel Injection: Gasoline Direct Injection (GDI)
Cylinder Configuration: Inline 4-cylinder
Main OE Reference: 23300-2G401, subject to product verification
Additional Reference: 23300-2G411, subject to configuration
Housing Material: Aluminum alloy
Internal Component Material: High-strength steel
Condition: Remanufactured
Detailed dimensions, gear tooth count, material grades, oil pressure and flow specifications should be confirmed against the applicable technical documentation.
The G4KJ 2.4L GDI engine is found in selected Hyundai and Kia models, including:
Sonata 2.4L GDI
Santa Fe 2.4L GDI
Tucson 2.4L GDI
Grandeur / Azera, selected market applications
Optima / K5 2.4L GDI
Sorento 2.4L gasoline
Sportage 2.4L GDI
Cadenza, selected market applications
Vehicle compatibility varies by model year, market, drivetrain, engine revision and original equipment specification.
This application list is a general guide and does not guarantee direct fitment for every vehicle listed.
Please provide your VIN, engine code and original oil pump part number to help verify the correct replacement.
The following numbers are useful for preliminary product identification:
23300-2G401
23300-2G411
Other G4KJ-related catalogue references may include 23300-2G420, 23300-2G430, 23300-2G460 and 23300-2G470, depending on the applicable assembly.
These numbers should not be treated as universally interchangeable.
Please verify the exact OE number, assembly configuration and replacement relationship before purchasing.
We serve professional buyers in the automotive replacement parts market, subject to product availability and commercial terms.
Our B2B support can include:
Wholesale and bulk purchasing inquiries.
Product identification using OE references.
Application verification support.
Product photographs and technical information.
Export packaging coordination.
Customized packaging or private-label options, subject to agreement.
Shipping and quotation coordination.
Please contact our sales team to confirm MOQ, stock availability, lead time, warranty terms, packaging and shipping options.
Q1: What is the OE number for the G4KJ oil pump?
23300-2G401 is an important reference associated with certain oil pump and balance shaft assembly applications. Confirm the original part number and actual product configuration before ordering.
Q2: Is the oil pump supplied with the balance shaft?
The configuration depends on the selected product. Please confirm whether you need an individual oil pump or a complete oil pump and balance shaft assembly.
Q3: Does this product fit every Hyundai or Kia 2.4L engine?
No. The engine code, OE number, production year, drivetrain and assembly design must be checked. G4KJ should not be confused with other Hyundai and Kia 2.4L engine codes.
Q4: Can you supply wholesale quantities?
Bulk orders can be discussed according to product availability, order quantity and agreed commercial terms. Contact us for a quotation.
Q5: Can you provide technical specifications?
Available documentation may include product dimensions, OE references, material information and applicable inspection reports, subject to supplier availability.
Q6: How can I confirm the correct part before ordering?
Please provide the vehicle VIN, model year, engine code and original part number. Clear photographs of the original pump can also help with preliminary identification.
Looking for a supply partner for Hyundai Kia G4KJ 2.4L GDI engine oil pumps?
Send us your required OE number, product configuration, order quantity and destination country.
Our sales team can help review the product requirements and discuss availability, wholesale pricing, packaging and shipping arrangements.
Contact us today for product information and a B2B quotation.
| Place of Origin | Guangdong, China |
| Condition | New |
| Purpose | for replace/repair |
| Type | Gas / Petrol Engine |
| Power | OEM Standards |
| Quantity (pieces) | 1 - 10 | 11 - 50 | > 50 |
| Lead time (days) | 7 | 15 | To be negotiated |
1. Our remanufactured products use accessories provided by well-known brand suppliers such as VICTORREINZ, SCHAEFFLER, KS KOLBENSCHMIDT GmbH, etc.
2. Our product quality is close to the original factory quality, but the price is only 50-60% of the original engine. We can also provide you with a one-year or 100000 kilometer warranty service for the entire machine, and professional after-sales personnel will follow up with you.
3. We have over 15 years of experience in the production and research of automotive engines, and our technical level and personnel training are very scientific and mature. Customers who have worked with us have expressed their agreement with our products and after-sales service.
4. 2018 It has achieved an annual production capacity of 2200 units and has become a major supplier of high-end engine remanufacturing and parts in China's automotive aftermarket.
5. In April 2021, T/CAAMTB passed the certification company of China Automobile Research and Huacheng. 19-2019 Certification of the management system requirements of gas vehicle parts remanufacturing enterprisesIn October 2021, he became a member of the National Green Manufacturing Technology Standardization Committee and participated in the drafting of the Technical Specification for Assembly of Remanufacturing Mechanical and Electrical Products.
