1. Cylinder Heads & Parts Engines Components For Sale
  2. sku: 11676693678293752
  3. HYUNDAI A2-ILH

HYUNDAI A2-ILH Palisade Left Cylinder Head 3.8L K21 ZC203

fits make: Hyundai. year: 2020–2023.

A2-ilh Hyundai 2020-2023 Palisade 3.8l Left Side Cylinder Head K21 Oem Zc203

( Manufacturer Part Number: A2-ILH ), ( Type: Cylinder Head ), ( Country Of Origin: United States )

Review HYUNDAI Palisade 3.8l Left Side Cylinder Head K21 Oem fits 2020–2023

The **Hyundai A2-ILH (2020 2023) 3.8L V6 Cylinder Head (K21 ZC203)** is a precision-engineered component designed to deliver optimal performance, reliability, and durability for the Hyundai Palisade s powerful 3.8L Lambda II (K21) V6 engine. This cast aluminum cylinder head, identified by its unique **K21 ZC203** part number, features a sophisticated dual overhead camshaft (DOHC) design with four valves per cylinder (20 valves total), ensuring efficient airflow and combustion for maximum power output. The head incorporates advanced **intake and exhaust ports** optimized for high-flow performance, allowing for better throttle response, smoother acceleration, and improved fuel efficiency. Its **integrated valve cover** houses the camshaft position sensors and oil control valves, contributing to the engine s precise timing and lubrication system. Built to Hyundai s stringent quality standards, this cylinder head is machined with **high-precision bores and valve seats**, ensuring proper sealing and minimizing the risk of leaks or overheating. The **intake manifold mounting surface** is meticulously finished to guarantee a secure, gasket-free fit, while the **exhaust ports** are designed to reduce backpressure, enhancing exhaust flow and overall engine breathing. Whether replacing a worn or damaged head or upgrading for performance tuning, this **OEM-quality cylinder head** is a critical component for maintaining the integrity and efficiency of the Palisade s 3.8L engine, offering a perfect balance of strength, aerodynamics, and longevity.

### **Pros and Cons of Buying a 2020-2023 Hyundai Palisade (3.8L V6, K21ZC203 Engine with Left Cylinder Head Issue)**

#### **Pros**

1. **Reliable V6 Engine (When Well-Maintained)**

- The 3.8L V6 (K21ZC203) is a proven Hyundai engine, known for durability in properly serviced vehicles. Many examples with regular maintenance run well beyond 200,000 miles.

- The engine is smoother than the turbocharged 2.5L options, offering better towing capacity (up to 5,000 lbs with the proper package) and a more traditional driving experience.

2. **Spacious and Practical SUV Design**

- The Palisade is one of the largest three-row SUVs on the market, offering generous cargo space (up to 107.3 cu. ft. behind the third row) and a comfortable ride.

- High-quality interior materials, especially in higher trims, with available features like a 12.3-inch touchscreen, wireless Apple CarPlay/Android Auto, and a premium audio system.

3. **Hyundai s Warranty and Customer Support**

- The 2020-2023 Palisade comes with Hyundai s **5-year/60,000-mile basic warranty** and **10-year/100,000-mile powertrain warranty**, which can be a major selling point if the car is still under coverage.

- Hyundai dealerships are generally well-stocked with parts, and the brand has improved its reputation for customer service over the past decade.

4. **Good Resale Value for a Midsize SUV**

- The Palisade holds its value better than many competitors in its class, partly due to its size and features. Depreciation is slower compared to smaller SUVs.

5. **Available Safety and Tech Features**

- Standard **Hyundai SmartSense** safety suite (adaptive cruise control, lane-keeping assist, blind-spot monitoring, rear cross-traffic alert).

- Available **360-degree camera** and **surround-view monitor**, which are helpful for parking and tight spaces.

- **Wireless charging pad** and **ambient lighting** in higher trims add convenience.

6. **Comfortable Ride and Quiet Cabin**

- The Palisade is built on a solid platform, offering a smooth ride with good noise insulation, making it suitable for long drives.

7. **Towing and Hauling Capability**

- With the proper towing package, the 3.8L V6 can handle up to **5,000 lbs**, making it a solid choice for families needing to tow a boat or trailer.

---

#### **Cons**

1. **Left Cylinder Head Issue (K21ZC203-Specific Problem)**

- **The most critical concern** with this engine is a **known failure in the left cylinder head** (firing order 1, 3, 5, 7), where the **spark plug wires or coils can fail**, leading to misfires, rough idling, or even complete engine failure if ignored.

- **Symptoms** include:

- Rough idle or hesitation at low RPMs.

- Check Engine Light (OBD-II codes P0300-P0308 for misfires).

- Poor acceleration or stalling.

- In severe cases, the engine may refuse to start.

- **Cause**: The issue stems from **poor electrical connections** in the left cylinder head wiring harness, often due to **corrosion, loose terminals, or failing coils**.

- **Repair Cost**: Replacing the **spark plug wires, coils, and potentially the cylinder head cover gasket** can cost **$800 $1,500** depending on labor rates. Some owners report needing to replace **multiple coils** over time.

- **Prevalence**: Hyundai has acknowledged this issue and has issued **technical service bulletins (TSBs)**, but many affected vehicles were sold before widespread recall notices. **Not all dealerships are proactive about checking for this.**

2. **High Maintenance Costs Over Time**

- While the engine is durable, **Hyundai s warranty is limited**, and after it expires, repairs can be expensive. Common issues include:

- **Transmission problems** (some 8-speed automatic transmissions have had complaints about rough shifting or delayed engagement).

- **Rear differential leaks** (common in SUVs, requiring fluid changes every 30K 50K miles).

- **Exhaust manifold cracks** (especially on the passenger side, leading to rattling noises).

- **Power steering pump failures** (can be costly to replace).

3. **Fuel Economy is Average for a Large SUV**

- The 3.8L V6 gets **around 17 19 MPG city / 23 26 MPG highway**, which is decent for a midsize SUV but not great for a gas-guzzling vehicle of this size.

4. **Build Quality Variability**

- Some owners report **plastic panel rattles, loose interior components, and minor cosmetic defects**, though this is common in mass-market SUVs.

5. **Resale Value Drop After Warranty Expires**

- Once the **10-year powertrain warranty expires**, the Palisade s resale value may decline more rapidly, as buyers prefer vehicles with extended coverage.

6. **Towing and Payload Limits**

- While the 3.8L V6 can tow **5,000 lbs**, the Palisade s **payload capacity is only 1,500 lbs**, which may be limiting for some buyers who need to carry heavy loads.

7. **Competitor Advantages**

- The **Chevrolet Traverse, Ford Explorer, and Toyota Highlander** offer similar space with sometimes better reliability ratings.

- The **Kia Telluride** is often considered a more refined alternative with similar features.

---

### **Ending Conclusion**

The **2020-2023 Hyundai Palisade with the 3.8L V6 (K21ZC203) is a capable, spacious SUV** that offers a good balance of comfort, towing ability, and warranty coverage. However, **the left cylinder head wiring issue is a significant red flag** that could lead to **expensive repairs if not addressed early**.

If you find a **well-documented Palisade** (with **service records proving coil/wire replacements** or a **dealer inspection confirming no issues**), it could be a solid buy. **Always verify:**

- Has the **left cylinder head wiring been inspected/replaced**?

- Are there **no active misfire codes**?

- Is the **transmission shifting smoothly**?

- Are there **no signs of exhaust leaks or differential issues**?

If the seller **cannot provide maintenance records** or the car has **history of misfires**, it may be better to **look for a different model or a Palisade with the turbocharged 2.5L engine (which has different but also known issues)**.

---

### **Final Recommendation**

**Buy the Hyundai Palisade 3.8L V6 only if:**

You **find a vehicle with documented coil/wire replacements** and **no misfire history**.

The **seller provides a pre-purchase inspection** confirming no left cylinder head issues.

You are **prepared for potential future maintenance costs** (transmission, differential, exhaust).

You **prioritize space and towing over long-term reliability** (since the warranty covers most major issues).

**Avoid it if:**

The **seller cannot confirm coil/wire replacements** or the car has **misfire codes**.

You **cannot get a pre-purchase inspection** from a trusted mechanic.

You **prefer a more proven long-term SUV** (e.g., Toyota Highlander, Honda Pilot).

**Alternative Considerations:**

- **Toyota Highlander (3.5L V6)** More reliable but less tech-focused.

- **Kia Telluride (3.8L V6)** Similar engine but often better build quality.

- **Ford Explorer (3.5L EcoBoost)** More refined but with its own reliability quirks.

**Bottom Line:** The Palisade is a **good SUV for the right buyer**, but the **cylinder head issue is a dealbreaker for many**. **Due diligence is critical** never buy one blindly. If you can **verify the left cylinder head is sound**, it s a solid choice; otherwise, consider alternatives.

Details:

Happy buying. We ask that you please choose the option I changed my mind if decide to return. For Sale is a 2020 2023 Hyundai Palisade OEM, 3.8L Left Side Cylinder Head A2-ILH K21, This an Original part, not aftermarket. Maybe a little dusty from storage use and have few minor scratches.

Please review all pictures carefully and read the before buying.

part #: a2-ilh prices

  • $44.10-$318.15

specifications cylinderheapar:

  • for makes: Hyundai
  • for years: 2020-2023
  • mpn: A2-ilh
  • type: Cylinder Head
  • country of origin: United States

payments cylinderheapar:

  • credit card: Discover
  • cash
  • other
  • wallet: Google-pay

general cylinderheapar:

  • Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads
  • condition: Used

offer cylinderheapar:

  • best offers: True
  • options: Ship-to-home
  • availability: In Stock
  • quantity: 1
  • started: March 5, 2026
  • sold: 0

shipping cylinderheapar:

  • cost: $95.00
  • class: Standard
  • type: Fixed
  • transit: 4-8 Days
  • carrier: UPS
  • service: UPS Ground

seller cylinderheapar:

  • city: Rancho Cordova, California
  • rating: 99.2%
  • # reviews: 13335

returns cylinderheapar:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted
for makes: hyundai, for years: 2020-2023, type: cylinder head, country of origin: united states,
category: auto parts > car truck parts accessories > engines engine parts > cylinder heads, sku: 11676693678293752,
Hyundai ZC203 Is Similar To:
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2 offers $44.10–$318.15 USD
  • Used. Offer #1 priced at $318.15 + $95.00 shipping estimate = $413.15* total. Maybe a little dusty from storage use and have a few minor scratches 2020-2023 Hyundai Palisade OEM.+$95.00 shipping
  • Used. Offer #2 priced at $44.10 + $12.99 shipping estimate = $57.09* total. Engine Starter Motor 2006-2008 Hyundai Sonata.+$12.99 shipping

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