fits model: Turbo, Tucson, Sonata, Forte, Optima. make: Hyundai, Kia.

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: NDS589 ), ( Part Type: Engine Crankshaft ), ( Application: For Hyundai / Kia G4kd 2.0l Engine ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Country Of Origin: China ), ( Important Notice: Package Included, Professional Installation Required ), ( 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 )
The **MaxpeedingRods NDS589 G4KD Engine Crankshaft** is a high-performance, precision-engineered replacement part designed specifically for the **2.0L turbocharged G4KD engine** found in Hyundai s **Tucson, Sonata, and Kia s Forte, Optima**, as well as other models within the same family. Crafted from **forged 4340 steel**, this crankshaft is built to withstand the extreme stresses of forced induction, delivering enhanced durability, smoother operation, and improved reliability under aggressive driving conditions. The **NDS589** variant features a **5-bolt main cap design**, ensuring superior strength and stability compared to stock configurations, which helps mitigate the risk of catastrophic failure under high RPM or heavy turbocharged loads. With **balanced counterweights and optimized journal surfaces**, this crankshaft reduces vibration, minimizes wear on bearings and rod bearings, and extends the overall lifespan of the engine components. Whether you're running a **stock turbo setup, a bolt-on turbo upgrade, or a full forced induction build**, this crankshaft provides the structural integrity needed to handle increased horsepower and torque without compromising performance. Ideal for both **restoration projects and high-mileage engines**, the **MaxpeedingRods NDS589** is a premium choice for enthusiasts seeking a reliable, performance-focused upgrade that exceeds OEM specifications. Backed by MaxpeedingRods reputation for quality and precision machining, this crankshaft is a critical component for those pushing their G4KD-powered vehicles to new limits.
### **Pros and Cons of Buying a Maxpeedingrods NDS589 G4KD Engine Crankshaft for Hyundai/Tucson, Kia Forte/Optima, and Sonata 2.0L Turbo Engines**
#### **Pros:**1. **Improved Power and Performance** A forged crankshaft is designed to handle higher RPMs and increased stress, allowing for better power output, especially when paired with supporting modifications like turbo upgrades, forced induction, or high-performance camshafts.
2. **Enhanced Durability** The G4KD engine is known for its reliability, but under heavy loads (such as aggressive turbo tuning or high-performance driving), a stock crankshaft may experience fatigue or failure. A Maxpeedingrods crankshaft is forged from high-quality materials, reducing the risk of catastrophic failure.
3. **Compatibility with Forced Induction** If you plan to add a turbocharger or supercharger, a stronger crankshaft is essential to prevent bending or cracking under increased stress. The NDS589 is specifically designed to support turbo builds.
4. **Better Weight Distribution** Forged cranks are often more balanced than cast counterparts, leading to smoother operation and reduced vibration, which can improve drivability and longevity.
5. **Aftermarket Support** Maxpeedingrods is a reputable manufacturer with a history of producing high-quality parts for turbocharged engines, including the G4KD. Their cranks are often used in professional tuning circles.
6. **Potential for Higher Redline** A forged crank can allow for safer operation at higher RPMs, which may be desirable for track use or aggressive street tuning.
7. **Warranty and Reliability** Maxpeedingrods provides warranties on their products, offering some peace of mind against manufacturing defects.
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#### **Cons:**1. **Cost** A Maxpeedingrods crankshaft is significantly more expensive than an OEM replacement. Prices typically range between **$1,200 and $2,000**, depending on whether it includes a new main bearing set, seals, and other components.
2. **Installation Complexity** Replacing a crankshaft requires removing the engine from the vehicle, which is a labor-intensive process. Unless you have mechanical experience, this will require professional installation, adding to the total cost.
3. **Not Always Necessary for Mild Tuning** If you are only running mild turbo upgrades (e.g., a small turbo with stock internals), a stock crankshaft may suffice. Forced cranks are best suited for aggressive builds (e.g., **200 HP, 300 lb-ft, or track use**).
4. **Additional Modifications May Be Required** Simply installing a new crankshaft may not be enough. You may also need to upgrade:- **Connecting rods** (if they are not already aftermarket)
- **Pistons** (forged or high-performance)
- **Rod bearings** (forged or high-capacity)
- **Camshafts** (for better valve timing)
- **Fuel system** (upgraded injectors, fuel pump, or ECU tuning)
- **Transmission** (if handling increased torque)
5. **Potential for Overkill** If you are not planning significant power gains, the cost may not justify the upgrade. A stock crankshaft can handle **moderate turbo builds (e.g., 150-200 HP)** without issues.
6. **Risk of Improper Installation** If not installed correctly, a forged crankshaft could still fail due to misalignment, improper bearing clearance, or incorrect balancing. This requires skilled labor.
7. **Limited Stock Availability** Unlike OEM parts, Maxpeedingrods cranks may have longer lead times, especially if you need a custom fit or additional components.
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### **Conclusion and Recommendation**
#### **Who Should Buy This Crankshaft?**
- **Aggressive tuners** planning **300 HP builds** with turbocharging or supercharging.
- **Track or drift-focused drivers** who need maximum durability under extreme stress.
- **Those who have already upgraded rods, pistons, and bearings** and are looking for the final piece to support high-power levels.
- **Owners who prioritize longevity and reliability** over cost and are willing to invest in a high-performance build.
#### **Who Should Avoid It?**
- **Casual tuners** running mild turbo upgrades (e.g., **150-200 HP**) who do not need the extra reinforcement.
- **Budget-conscious builders** who can achieve similar power gains with less expensive modifications.
- **Those who lack mechanical experience** and cannot properly install or support the crankshaft with complementary upgrades.
#### **Final Recommendation:**If you are **seriously committed to a high-performance turbo build** (especially **300 HP**) and have already upgraded supporting components (rods, pistons, bearings, fuel system), then the **Maxpeedingrods NDS589 crankshaft is a worthwhile investment** for durability and performance.
However, if you are **just starting out with mild tuning**, consider **sticking with a stock crankshaft** and upgrading other components first (e.g., turbo, intercooler, fuel system) before investing in a forged crank.
For **best results**, pair this crankshaft with:- **Forged connecting rods** (e.g., ARP or Maxpeedingrods)
- **High-performance pistons** (e.g., JE, Scat, or Maxpeedingrods)
- **Upgraded bearings** (e.g., ARP or ISC)
- **ECU tuning** (for proper fuel and timing adjustments)
- **A reinforced oil system** (to handle increased lubrication demands)
If you are unsure, consult with a **reputable G4KD tuner** before making the purchase to ensure it aligns with your build goals.
Guaranteed Fitment Always the correct part. OE/Part number. Fast, Shipping. 23111-2G010, 231112G010, 23111 2G010.
It is usually behind the cars windshield or on nameplate. G4KD Engine, - ONLY fits model's with 2.0L engine. For Hyundai / Kia G4KD 2.0L Engine. 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.