fits model: Tucson, Optima. make: Hyundai, Kia.

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: HP4JEK ), ( Part Type: Bearing Engine Crankshaft Rod Piston ), ( Application: For Hyundai / Kia G4kd 2.0l Engine ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Connecting Rods Oe: 23510-25040, 23510-25030, 23510-25020, 23510-25010 ), ( Important Notice: Package Included, Professional Installation Required ), ( Items Included: Bearing, Washers ), ( Main Bearing Set Oe: 21020-2g010 ), ( Manufacturer Warranty: 2 Years ), ( Material: Cast Iron, Steel ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part. ), ( Oe/oem Part Number: 23111-2g010, 231112g010 ), ( Pistons Rings Set Oe: 23410-2g000, 23040-2g200, 23410 2g000, 23040 2g200, 234102g000, 230402g200 ), ( Rod Bearing Set Oe: 23060-2g100 ), ( Thrust Washer Oe: 21020-25150 )
The **Maxpeedingrods HP4JEK G4KD Engine Crankshaft Rod Piston Bearing Set** is a premium, high-performance aftermarket upgrade meticulously designed to enhance the durability, efficiency, and power output of the **2.0L G4KD engine** found in the **Hyundai Tucson (2011-2015)** and **Kia Optima (2011-2015)**. Engineered from **high-grade, precision-machined materials**, this bearing set delivers superior load-bearing capacity, reduced friction, and improved oil retention compared to stock components, ensuring optimal performance under demanding driving conditions. The **crankshaft, rod, and piston bearings** are crafted with **advanced heat-resistant alloys**, which minimize wear and prevent premature failure, even during aggressive acceleration, high-RPM spirited driving, or extended high-load operation. Each bearing is **dynamically balanced and precision-fitted** to the G4KD engine s specifications, guaranteeing a seamless installation that maintains or exceeds OEM tolerances while reducing parasitic losses that sap power and fuel efficiency. Whether you're pushing the limits on the track, towing heavy loads, or simply seeking long-term reliability, this bearing set provides a **cost-effective yet high-performance solution** that restores and enhances the engine s internal strength. Built to withstand the stresses of modern driving, the **HP4JEK set** is an ideal choice for enthusiasts looking to **extend engine life, improve responsiveness, and maintain peak mechanical integrity** without compromising on quality or fitment.
**Pros and Cons of buying a Maxpeedingrods HP4JEK G4KD Engine Crankshaft, Rod, Piston, and Bearing Kit for a Hyundai Tucson/Kia Optima 2.0L (Gamma G4KD Engine)**
### **Pros:**1. **Performance Gains** This kit is designed to significantly increase horsepower and torque by improving internal combustion efficiency. The forged components (crankshaft, connecting rods, pistons) are engineered to handle higher RPMs and stress, leading to better power delivery and responsiveness.
2. **Durability and Longevity** Forged crankshafts and rods are stronger than cast counterparts, reducing the risk of catastrophic failure under heavy loads. The high-quality bearings ensure smoother operation and extended engine life, especially for high-performance applications.
3. **Compatibility** The HP4JEK kit is specifically designed for the Hyundai/Kia 2.0L Gamma (G4KD) engine, ensuring a proper fit without modifications. This reduces the risk of clearance issues or installation problems.
4. **Aftermarket Support** Maxpeedingrods is a well-known brand in the performance tuning community, offering reliable parts with good customer support. The kit includes detailed installation instructions, and many tuners have experience working with these components.
5. **Potential for Future Upgrades** Since this kit is part of a performance package, it can serve as a foundation for further modifications, such as turbocharging or supercharging, if you plan to push the engine further down the road.
6. **Warranty and Quality Control** Reputable brands like Maxpeedingrods typically offer warranties on their components, providing some peace of mind against defects. The machining and materials used are often of higher quality than stock parts.
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### **Cons:**1. **High Cost** Performance engine components, especially forged parts, are significantly more expensive than OEM replacements. The full kit (crank, rods, pistons, bearings) will likely cost several thousand dollars, making it a substantial investment.
2. **Installation Complexity** Rebuilding an engine with these components requires advanced mechanical skills or access to a professional machine shop. The process involves disassembly, machining (if needed), assembly, and break-in procedures, which can be time-consuming and costly if done professionally.
3. **Break-In Period** Forged pistons and rods require a careful break-in process to prevent scoring or premature wear. This means avoiding aggressive driving (high RPMs, sudden loads) for the first few hundred miles, which can be inconvenient.
4. **Potential for Overkill** If your primary goal is mild tuning (e.g., minor power gains or reliability improvements), this kit may be excessive. For everyday driving or light modifications, a simpler upgrade (e.g., intake, exhaust, or a tune) might suffice.
5. **Compatibility with Stock Engine Bay** While the kit is designed for the G4KD, some aftermarket components (e.g., headers, exhaust) may need adjustments to accommodate the increased power output. Clearances with the engine bay or drivetrain could become an issue if not properly addressed.
6. **Risk of Voiding Warranty** Installing aftermarket performance parts may void the manufacturer s warranty on the vehicle. This is a trade-off to consider if you plan to keep the car long-term or rely on Hyundai/Kia service centers.
7. **Learning Curve for Tuning** Higher power outputs often require a tuned ECU to prevent engine damage. If you re not familiar with tuning software (e.g., HP Tuners, AEM, or standalone ECUs), you ll need to invest time or hire a tuner to optimize the engine s performance safely.
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### **Conclusion:**The Maxpeedingrods HP4JEK G4KD crankshaft, rod, piston, and bearing kit is an excellent choice if you re committed to significantly increasing the power and reliability of your Hyundai Tucson or Kia Optima s 2.0L engine. The forged components deliver measurable performance gains and durability, making it ideal for enthusiasts who want to push their engines beyond stock limits. However, the high cost, complex installation, and break-in requirements mean it s not a casual upgrade. It s best suited for those with mechanical experience, a budget for professional installation, and a clear goal of high-performance driving or future engine modifications.
If your primary goal is reliability or modest power gains, consider less invasive upgrades first (e.g., intake, exhaust, or a tune). But if you re serious about maximizing performance and are prepared for the investment and effort, this kit is a strong recommendation.
### **Recommendation:** - **Proceed with the kit if:**- You re planning aggressive modifications (turbo/supercharger, nitrous, or high-RPM driving).
- You have access to a machine shop or mechanical expertise for installation.
- You re willing to invest in a tuner to optimize the engine s performance.
- Your budget allows for the upfront cost and potential additional expenses (e.g., labor, fuel system upgrades).
- **Avoid or reconsider if:**- You re on a tight budget or only want mild improvements.
- You lack mechanical experience or access to professional help for installation.
- You prioritize warranty coverage and plan to keep the vehicle long-term without further modifications.
- Your driving habits are mild (e.g., daily commuting with no aggressive tuning).
23111-2G010; 231112G010 231112G030 36RZ6-2GF00. Fitment Type: Direct Replacement.guaranteed Fitment. Quick, Simple.
OE/Part number. Manufacturer. Always the correct part. For Hyundai / Kia G4KD 2.0L Engine.
Fast Shipping. Pistons Rings Set OE#. Condition: New. G4KD Engine, - ONLY fits model's with 2.0L engine.
Crankshaft OE#. Connecting Rods OE#. For Kia Forte Coup 2010 - 2013, Forte5 2012 Serenity 2016 2018, Optima 2020, Sportage 2017 Stinger 2018 Hyundai Tucson 2011 Sonata 2015 - 2019, Santa Fe Sport 2019 Bolster N Genesis G70 2020. It is usually behind the cars windshield or on nameplate.
Brand New, Built to strict quality control standards, High Metal and constructed for Antitrust Anti corrosion, durable stable performance long time use.