1. Cylinder Heads & Parts Engines Components For Sale
  2. sku: 12046948127533891
  3. HYUNDAI SONATA

HYUNDAI 306-58427R Cylinder Head 30L 89-95

fits model: Sonata. make: Hyundai. year: 1992.

306-58427r Hyundai R Cylinder Head 30l Fits 89-95 Sonata 24355

( Part Type: Cylinder Head ), ( Conditions Options: Inj, 3.0, Gls ), ( Genuine Oem: Yes ), ( Ipn: 306-58427r )

Review HYUNDAI Cylinder Head 30l 89-95 fits SONATA 1992

The **Hyundai 306-58427R Cylinder Head** is a precision-engineered component designed specifically for the **1989 1995 Hyundai Sonata** models equipped with the **3.0L (3,000cc) inline-six (L6) engine**, identified by the **30L engine code**. This high-performance cylinder head is a critical part of the engine s combustion system, responsible for housing the valves, spark plugs, and intake/exhaust ports while ensuring optimal airflow and thermal efficiency. Crafted from **high-grade cast iron**, the head is engineered to withstand the intense heat and pressure generated during combustion, providing durability and longevity under demanding driving conditions. The design features **two valves per cylinder** (intake and exhaust) arranged in a **pushrod-operated overhead valve (OHV) configuration**, allowing for smooth and reliable operation while maintaining compatibility with the engine s original valve train components. The **intake ports** are contoured to maximize airflow for improved throttle response and fuel efficiency, while the **exhaust ports** are optimized to reduce backpressure, enhancing exhaust scavenging and overall engine performance. This cylinder head is compatible with the **30L engine s camshaft, rocker arms, and valve springs**, ensuring seamless integration with the rest of the drivetrain. Whether you're restoring a classic Sonata, upgrading an engine, or replacing a worn-out head, this **OEM-quality part** delivers the reliability and performance expected from Hyundai s original equipment manufacturing standards. Proper installation, including the use of **high-temperature gasket material** and correct torque specifications, is essential to prevent leaks and ensure long-term functionality. For optimal results, pair this cylinder head with a **fresh set of valves, valve springs, and a new head gasket** to restore or maintain peak engine performance in your 3.0L Hyundai Sonata.

### **Pros and Cons of Buying a Hyundai 306-58427R Cylinder Head (3.0L, 1989-1995 Sonata)**

#### **Pros:**

1. **Common and Widely Available** The 3.0L V6 engine in the 1989-1995 Hyundai Sonata is a well-documented design, meaning parts like cylinder heads are relatively easy to find, especially from aftermarket suppliers. Hyundai and Kia dealerships, as well as online marketplaces, frequently stock these components.

2. **Repairable and Upgradable** The cylinder head is a mechanical part that can be professionally machined, ported, or modified for better performance. Many aftermarket options exist for upgrades, such as high-flow valves, upgraded springs, or even full rebuild kits.

3. **Cost-Effective Replacement** Compared to some other luxury or high-performance engine components, a used or refurbished 306-58427R head is generally affordable. Prices can vary, but they are often significantly cheaper than OEM replacements for more modern engines.

4. **Proven Reliability (When Maintained)** The 3.0L V6 in the Sonata is known for being durable if properly maintained. Many owners report long-term reliability with regular oil changes, valve adjustments, and head gasket replacements.

5. **Compatibility with Modifications** The engine responds well to basic modifications like cold air intakes, performance exhausts, and ECU tuning, making it a good candidate for mild power upgrades if the cylinder head is in good condition.

6. **Aftermarket Support** There is a strong aftermarket community for this engine, with resources available for troubleshooting, rebuild guides, and performance parts. This makes repairs and modifications more accessible for DIYers.

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#### **Cons:**

1. **Potential for Head Gasket Failure** One of the most common issues with this engine is head gasket failure, which can lead to overheating, coolant loss, or oil contamination. If the head has a history of leaks or warping, it may need replacement sooner rather than later.

2. **Worn or Damaged Condition** If purchasing a used cylinder head, there is a risk of hidden damage, such as cracked valves, burnt valve seats, or warped surfaces. Without professional inspection or machining, these issues can go unnoticed until they cause further engine damage.

3. **Limited Longevity Without Maintenance** Like many older engines, the 3.0L V6 requires regular valve adjustments (every 30,000 40,000 miles) and head gasket replacements (typically every 60,000 100,000 miles). Neglecting these can lead to costly repairs down the line.

4. **Throttle Body and Fuel System Issues** Some models from this era suffer from throttle body carbon buildup and fuel system problems (e.g., clogged injectors or failing fuel pumps), which can indirectly affect engine performance even if the cylinder head is in good shape.

5. **Emissions and Modern Compliance** If the engine is being used in a vehicle that requires modern emissions standards (e.g., smog checks in some states), modifications or upgrades may be restricted, limiting performance tuning options.

6. **Potential for Valve Train Wear** The pushrod and valve train components in this engine can wear over time, leading to valve float or poor sealing. If the head is being used in a high-RPM application, these issues may become more pronounced.

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### **Conclusion:**

Buying a **Hyundai 306-58427R cylinder head (3.0L, 1989-1995 Sonata)** can be a smart choice if you prioritize affordability, availability, and the potential for performance upgrades. The engine is well-supported by the aftermarket, and with proper maintenance, it can provide reliable service for many years. However, it is not without its drawbacks head gasket failure, valve train wear, and the need for regular upkeep are real concerns that must be addressed.

If you are purchasing this part for a **restoration or performance project**, ensure the head is inspected for warping, cracks, or internal damage before installation. If you plan to use it in a **daily driver**, be prepared for ongoing maintenance, particularly valve adjustments and head gasket replacements.

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### **Recommendation:**

- **Best For:** Enthusiasts looking for a cost-effective, modifiable engine component with strong aftermarket support. Ideal for projects where reliability and performance are balanced with budget constraints.

- **Avoid If:** You need a hassle-free, long-term solution without maintenance or if you are unwilling to invest in regular upkeep (e.g., valve adjustments, head gasket replacements).

- **Action Steps:**

- **Inspect or Machine the Head:** If purchasing used, have a professional machine the head to check for warping or damage.

- **Replace Head Gaskets:** Always use high-quality gaskets (e.g., Fel-Pro or AAR) to prevent leaks.

- **Budget for Maintenance:** Plan for regular valve adjustments and potential fuel system upgrades.

- **Consider a Rebuilt Head:** If available, a professionally rebuilt head may offer better reliability than a used one.

**Final Verdict:** The 306-58427R cylinder head is a **good purchase for the right project**, particularly if you are prepared for maintenance and have access to aftermarket support. For a daily driver, weigh the long-term costs against the benefits before committing.

Details:

Lift gate Fees range from $50-$100. This system was designed as a benchmark with certain understandings. Oversize charges are implemented for items over using the same formula and if its 130 an $100.00 charge is applied. A business/commercial delivery address is required for the stated shipping price.

Essentially this means that the item may be in better or worse condition than stated. We prefer it, its faster and it provides a written record for your protection ours. Visual flaws still may be present as the item is used. Specific item information and warranty is posted on the listing.

A Home-based business, or a farm, do not qualify as business/commercial address for logistical purposes. If an RMA# is not provided there may be a delay in processing the return. Most carriers do not allow hand unloading. The pre-installation maintenance items are as follows: Drain and replace engine oils to manufacturers suggested levels.

The difficulty as you can see is placing exact charges on each listing when so many variables are present. This may vary during heavy traffic time periods and buyers would be notified of any anticipated delay. Not allowing an item to be delivered is the same as refusing it. Buyers must be willing to answer their calls and discuss the delivery of item with carrier.

Please verify identification numbers, wheelbase measurements, and ID codes. As well charges are based on dimensional weight, not actual weight. Are NOT included with this listing. A telephone number is required.

Common used part visual blemishes most likely present. A condition does not mean new or perfect it means the item is in great used. Residential Limited Access fees range from $50-$100. We ask that you verify the actual condition versus what are expecting to prevent any issues later.

Orders placed after 10:00 am CST cannot be guaranteed shipping that day if option applies to your listing. They are not reflective of the actual part or condition being sold. Replace Oil Filter, Valve Cover Gaskets, Pan Gasket Rear Main Seal, Inspect and replace, if needed, timing gears, chains or belts gaskets, thermostat gasket, Flush cooling system refill with antifreeze to appropriate level, Install New Spark Plugs, Belts Hoses. That is not the way this system was designed.

part #: 306-58427r prices

  • $75.00-$335.00

specifications cylinderheapar:

  • for models: Sonata
  • for makes: Hyundai
  • for years: 1992
  • part type: Cylinder Head
  • conditions options: Inj, 3.0, Gls
  • genuine oem: Yes
  • ipn: 306-58427r

offer cylinderheapar:

  • best offers: True
  • availability: In Stock
  • started: May 6, 2026
  • options: Ship-to-home
  • quantity: 1
  • sold: 0

seller cylinderheapar:

  • city: Arena, Wisconsin
  • rating: 99.8%
  • # reviews: 10147

general cylinderheapar:

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

shipping cylinderheapar:

  • cost: $110.15
  • carrier: FedEx
  • class: Standard
  • transit: 2-6 Days
  • type: Calculated
  • service: FedEx Ground / FedEx Home Delivery

payments cylinderheapar:

  • wallet: Apple-pay
  • other
  • credit card: Mastercard

returns cylinderheapar:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer
for models: sonata, for makes: hyundai, for years: 1992, part type: cylinder head, conditions options: inj, 3.0, gls, genuine oem: yes,
manufacturer: hyundai, category: auto parts > car truck parts accessories > engines engine parts > cylinder heads, sku: 12046948127533891,
Hyundai 24355 Is Similar To:
cylinderheapar logo
5 offers $75.00–$335.00 USD
  • Used. Offer #1 priced at $75.00 + $110.15 shipping estimate = $185.15* total. This system was designed as a benchmark with certain understandings SONATA 89-95 3.0L.+$110.15 shipping
  • Used. Offer #2 priced at $335.00 + $0.00 shipping estimate = $335.00* total. FREE SHIPPING
  • Used. Offer #3 priced at $108.50 + $12.00 shipping estimate = $120.50* total. (Unless stated otherwise) It may be a little dusty from storage use.+$12.00 shipping
  • Used. Offer #4 priced at $42.00 + $0.00 shipping estimate = $42.00* total. 2.0L 4 Cylinder Variable Valve Timing Solenoid.FREE SHIPPING
  • New. Offer #5 priced at $113.99 + $0.00 shipping estimate = $113.99* total. Brake Master Cylinder.FREE SHIPPING

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