FORD 6G1Z5427406AB Fivehundred Front Cylinder Head Dohc 3.0L 5F9Z6049AA

( Manufacturer Part Number: 6G1Z5427406AB ), ( Model: FORD-500 ), ( Part Type: Cylinder Head ), ( Id: 87a2abbe-a57b-4b41-85d5-c81c72917940 ), ( Interchange: 306-1940 ), ( Partout Id: A-129321272 )

Review FORD Fivehundred Front Cylinder Head Assembly Oem 3.0l Dohc fits 2005–2007

The **Ford 6G1Z5427406AB (2005 2007 Ford Five Hundred 3.0L DOHC Cylinder Head)** is a precision-engineered component designed to deliver reliable performance and durability in Ford s iconic 3.0-liter Duratec V6 engine, which powers the 2005 through 2007 Five Hundred lineup. This cast aluminum cylinder head, identified by its unique part number **5F9Z-6049-AA**, features a **Dual Overhead Camshaft (DOHC)** design, ensuring optimized valve actuation for enhanced airflow, power output, and efficiency. The head incorporates **four valves per cylinder** (two intake and two exhaust) arranged in a compact, high-performance layout, allowing for improved combustion and smoother operation. The intake ports are contoured to maximize airflow velocity, while the exhaust ports are designed to efficiently expel spent gases, contributing to better throttle response and overall engine performance. Constructed from high-quality aluminum alloy, this head is lightweight yet robust, with reinforced structures to withstand the thermal and mechanical stresses of high-performance driving. The **hydraulic valve lifters** eliminate the need for frequent adjustments, ensuring consistent valve clearance and reducing maintenance requirements. Additionally, the head is equipped with **individual throttle bodies (ITBs)** for each cylinder, which improve fuel atomization and combustion efficiency, further enhancing the engine s responsiveness and fuel economy. Whether used in stock applications or as part of a modified setup, this cylinder head plays a critical role in maintaining the reliability and performance that Ford s Five Hundred drivers expect. Its compatibility with the **3.0L Duratec V6** makes it a sought-after replacement for those seeking to restore or upgrade their vehicle s engine bay, ensuring optimal function and longevity.

### **Pros and Cons of Buying a 2005-2007 Ford Five Hundred (3.0L DOHC V6, 6G1Z5427406AB Cylinder Head, 5F9Z6049AA Engine)**

#### **Pros**

1. **Reliable Base Engine** The 3.0L DOHC V6 (Cyclone engine) is a well-known Ford powerplant, known for durability when properly maintained. Many examples last well beyond 200,000 miles with basic upkeep.

2. **Good Power for the Class** The 3.0L produces around **190-200 hp** and **180 lb-ft of torque**, which is sufficient for a mid-size sedan, offering a smooth ride and adequate acceleration for highway driving.

3. **Proven Transmission Options** The 5-speed automatic (5F9Z6049AA) is a robust Ford transmission, though it can be finicky with shifting if not serviced properly. Some owners opt for aftermarket upgrades (e.g., **Valvetronic or Tremec conversions**) for better performance.

4. **Affordable Parts & Maintenance** Being a Ford, parts are widely available, and labor costs are reasonable compared to luxury or high-performance vehicles. Basic maintenance (oil changes, spark plugs, timing belt) is budget-friendly.

5. **Comfortable Ride & Interior** The Five Hundred was designed for comfort, with a smooth suspension setup and a spacious cabin. The interior is functional, with decent sound insulation and a quiet ride for its class.

6. **Potential for Modifications** The Cyclone engine responds well to **intake, exhaust, and camshaft upgrades**, allowing for modest power gains (250-300 hp with a tune) if you're interested in tuning.

7. **Used Market Availability** As a common Ford, you ll find many examples at reasonable prices, especially in lower-mileage or well-maintained condition.

8. **Decent Fuel Economy** For a V6 sedan, it achieves **18-22 MPG highway** and **15-18 MPG city**, which is respectable for its time.

---

#### **Cons**

1. **Timing Belt & Water Pump Issues** The **timing belt must be replaced every 60,000-100,000 miles** (depending on maintenance records). Neglecting this can lead to **valve damage**, a costly repair. Some owners report water pump failures around the same interval, requiring a **complete front-end overhaul**.

2. **Transmission Problems** The **5-speed automatic (5F9Z6049AA)** is known for **rough shifting, delayed engagement, and solenoid failures**. Some owners experience **slippage or complete failure**, requiring a rebuild or replacement. Aftermarket transmissions (e.g., **Tremec T56**) can improve reliability but add cost.

3. **Oil Consumption** Many Cyclone engines **burn oil**, especially if not maintained properly. Regular **oil changes with high-quality synthetic oil** and **valve cover gasket checks** are essential to prevent catastrophic failure.

4. **Electrical & Sensor Failures** The Five Hundred has a reputation for **frequent electrical gremlins**, including **faulty sensors (MAF, crankshaft, camshaft), alternator issues, and starter problems**. A **full electrical system check** is recommended before purchase.

5. **Rust Concerns** Depending on the region, **underbody rust** (especially in the wheel wells, frame rails, and subframe) can be an issue. A thorough **under-car inspection** is crucial.

6. **Clutch (If Manual Option Existed)** While the Five Hundred was primarily an automatic, some early models had a **manual transmission option**. If you're considering a manual, be aware of **clutch wear and synchro issues**.

7. **Resale Value & Depreciation** The Five Hundred is not a highly sought-after vehicle, so resale value is **low**. It s better suited for a **short-term or project car** rather than a long-term investment.

8. **Suspension Wear** The **shock absorbers and bushings** often wear out by **80,000-120,000 miles**, leading to a **rougher ride**. Replacing them improves handling and comfort.

9. **Potential Head Gasket Leaks** While not as common as in some other Ford V6s, **head gasket failure** can occur if the engine overheats or is neglected. **Coolant leaks, white smoke from the exhaust, and overheating** are warning signs.

10. **Limited Aftermarket Support** Compared to a Mustang or F-150, the Five Hundred has **fewer aftermarket parts and tuning options**, limiting customization potential.

---

### **Conclusion & Recommendation**

The **2005-2007 Ford Five Hundred with a 3.0L DOHC V6 (6G1Z5427406AB)** can be a **great budget-friendly daily driver** if you **prioritize maintenance, inspect critical components, and manage expectations**. It offers **comfort, decent power, and reliability** when kept in good condition, but it is **not without its quirks**.

- **Budget-conscious buyers** who want a **comfortable, fuel-efficient V6 sedan**.

- **Project cars** for those willing to **invest in repairs** (transmission, timing belt, electrical).

- **Short-term owners** who plan to **sell or trade in** after a few years.

- **Enthusiasts** who enjoy **modifying Ford V6 engines** (though tuning options are limited).

- **Those seeking long-term reliability without maintenance** (timing belt, transmission, oil changes are critical).

- **Buyers who want a high-resale-value or luxury vehicle**.

- **People who dislike occasional electrical or transmission issues**.

- **Those who prefer modern tech** (infotainment, safety features are basic by today s standards).

You **inspect the timing belt, transmission, and electrical system** thoroughly.

You **verify maintenance records** (oil changes, coolant flushes, belt replacements).

You **budget for potential repairs** (transmission rebuild, water pump, shocks).

You **plan to drive it for a few years** and then sell or replace it.

You **can t commit to regular maintenance**.

You **need a vehicle with low long-term costs**.

You **prioritize modern features and reliability** over affordability.

- **Get a pre-purchase inspection (PPI)** from a trusted mechanic.

- **Check for oil leaks, transmission smoothness, and electrical functionality**.

- **Consider a used example with a **timing belt replacement and transmission service** already done.

- **Budget for a **$2,000-$4,000 repair fund** for potential issues.

If you **find a well-maintained example with a reliable transmission and no major rust**, the Five Hundred can be a **solid, enjoyable daily driver** for the right buyer. However, if you re looking for **zero hassle**, a **modern used Honda Accord or Toyota Camry** might be a better long-term choice.

Details:

This part will fit the following: FORD 500 FIVE HUNDRED SEDAN 05-07 3.0L, LH front. FORD FREESTYLE 05-07 3.0L, LH front. Model: FORD 500. Search for more parts FORD 500.

part #: 6g1z5427406ab prices

• $90.00-$600.00

specifications cylinderheapar:

• for makes: Ford
• for years: 2005-2007
• mpn: 6g1z5427406ab
• model: Ford-500
• part type: Cylinder Head
• id: 87a2abbe-a57b-4b41-85d5-c81c72917940
• interchange: 306-1940
• partout id: A-129321272

returns cylinderheapar:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

seller cylinderheapar:

• rating: 99.6%
• # reviews: 16695
• city: Brush, Colorado

shipping cylinderheapar:

• class: Standard
• service: Standard
• cost: $0.00
• transit: 5-8 Days
• type: Fixed

offer cylinderheapar:

• started: May 22, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1
• availability: In Stock

payments cylinderheapar:

• credit card: Diners-club
• wallet: Paypal
• other

general cylinderheapar:

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

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