fits model: Mkz, Mkx, Edge, Taurus. make: Ford. year: 2007–2010.

( Manufacturer Part Number: 7T4Z6049A ), ( Material: Aluminum ), ( Vintage Part: No ), ( Interchange: 306-130a ), ( Type: Cylinder Head ), ( Manufacturer Warranty: 1 Month ), ( Id: 407e5644-a7a7-4811-a571-81461266c3dc ), ( Country Of Origin: United States )
The **Ford 7T4Z6049A** is a meticulously engineered **left-hand cylinder head** designed exclusively for Ford s **3.5L Duratec V6 engine**, serving as a critical component in select models from the **2007 to 2012 lineup**, including the **MKZ (2009 2010), MKX, Edge, and Taurus**. Crafted from high-grade **cast aluminum alloy**, this cylinder head is precision-machined to ensure optimal thermal conductivity, durability, and performance, allowing for efficient heat dissipation while maintaining structural integrity under high-stress operating conditions. The head features a **four-valve-per-cylinder design**, incorporating **intake and exhaust valves** with **stainless steel stems** and **titanium nitride-coated valve seats** to enhance wear resistance and longevity, even in demanding driving environments. The **integrated camshaft cover** and **valve cover** are engineered to minimize oil leaks and maintain proper lubrication, while the **spark plug boss** is strategically positioned for optimal ignition efficiency, ensuring consistent combustion and power delivery. This cylinder head is compatible with **Ford s 3.5L Duratec 355 engine**, which powers a range of vehicles known for their smooth operation, fuel efficiency, and reliability, making it an essential replacement part for engines requiring restoration, repair, or upgrade. Whether addressing issues like **leaking head gaskets, warped surfaces, or general wear**, this **OEM-quality component** restores factory performance and ensures seamless integration with the engine s internal systems, including the **intake manifold, fuel injectors, and exhaust headers**. Built to Ford s exacting standards, the **7T4Z6049A** is a **direct-fit, no-compromise solution** for enthusiasts and mechanics seeking precision, durability, and the confidence of genuine automotive engineering.
### **Pros and Cons of Buying a Ford 7T4Z6049A (2007 2012 MKZ, 2009 2010 MKX, Edge, Taurus) 3.5L V6 with a Left Cylinder Head Issue**
#### **Pros**
1. **Proven Reliability (When Maintained Properly)** The 3.5L Duratec V6 (7T4Z6049A) is a well-regarded engine in Ford s lineup, known for its smooth operation and durability when kept up with maintenance. Many examples with minor issues can be revived with proper repairs.
2. **Common Engine (Easy to Find Parts)** Being a widely produced engine (used in multiple Ford models), parts like cylinder heads, gaskets, valves, and sensors are readily available and often affordable. Aftermarket support is strong, reducing long-term repair costs.
3. **Potential for Restoration** If the left cylinder head is the only major issue, a skilled mechanic can often rebuild or replace just the head (or the entire head assembly) without needing a full engine swap. This keeps costs lower than replacing an entire engine.
4. **Good Driving Experience** The 3.5L V6 provides a balanced power-to-weight ratio, making it suitable for daily driving. The transmission (likely a 6-speed automatic) is smooth and reliable when serviced.
5. **Potential for Undervaluation** Due to the cylinder head issue, some sellers may price the vehicle below market value, offering a bargain for buyers who are willing to invest in repairs.
6. **Compatible with Ford s Aftermarket Community** Ford s 3.5L engines have a strong following, meaning forums, tutorials, and DIY repair guides are abundant. This makes troubleshooting and repairs more accessible.
7. **Possible Performance Modifications** If the engine is otherwise sound, there are aftermarket options (e.g., intake, exhaust, ECU tuning) to improve performance without excessive cost.
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#### **Cons**
1. **Left Cylinder Head Concerns** The most significant issue is the left cylinder head, which may have:- **Warping or cracking** (common in these engines due to overheating or poor maintenance).
- **Exhaust valve leaks** (requiring valve stem seals or full head replacement).
- **Internal damage** (if the head was overheated, the combustion chamber or ports may be compromised).
- **Costly repairs** Rebuilding or replacing a cylinder head can range from **$800 $2,000 **, depending on labor rates and whether new parts are used.
2. **Potential for Secondary Damage** If the head was overheated, other components may be affected, such as:- **Piston damage** (scoring or warping).
- **Rod or crankshaft wear** (if the engine was pushed hard while overheated).
- **Transmission or cooling system failures** (if the issue was due to prolonged overheating).
3. **Transmission Reliability (6-Speed Automatic)** While generally durable, the 6-speed automatic in these vehicles can develop:- **Slippage or rough shifting** (common in high-mileage examples).
- **Solenoid or valve body failures** (requiring a rebuild or replacement, costing **$1,500 $3,000**).
- **Fluid degradation** (must be changed every **60K 100K miles** to prevent damage).
4. **Timing Chain vs. Belt** The 3.5L V6 uses a **timing chain**, which is more durable than a belt but can stretch or wear over time. If it fails, it can cause **valve damage** (a **$1,500 $2,500** repair). Inspecting chain tensioners and guides is critical.
5. **Cooling System Vulnerabilities** Many of these engines suffer from:- **Thermostat failures** (leading to overheating).
- **Water pump wear** (often fails around **100K 150K miles**, costing **$500 $1,200** to replace).
- **Radiator or hoses** (common points of failure that can lead to overheating).
6. **Electrical and Sensor Issues** Common problems include:- **Mass airflow sensor (MAF) failures** (causing rough idling or check engine lights).
- **Oxygen sensor failures** (requiring replacement every **60K 100K miles**).
- **Alternator or battery issues** (common in high-mileage examples).
7. **Rust and Structural Concerns (Especially MKZ/MKX)** Depending on the region, these vehicles may suffer from:- **Rust in wheel wells, undercarriage, or frame** (common in snowy or salted climates).
- **Door seals and window regulators** (often leaky or failing).
8. **Resale Value and Depreciation** These vehicles are not known for strong resale value, especially if they have known issues. Even after repairs, they may not hold value well.
9. **Labor Costs** If the vehicle is older, finding a reputable mechanic can be expensive. Some shops may charge premium rates for Ford-specific work.
10. **Hidden Problems** Without a thorough inspection (or a recent service history), there s a risk of:- **Ignored maintenance** (oil changes, timing belt/chain inspection, cooling system flushes).
- **Previous accident damage** (frame misalignment, suspension issues).
- **Transmission or drivetrain wear** (CV axles, driveshafts, differentials).
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### **Conclusion**
Buying a **2007 2012 Ford MKZ/MKX/Edge/Taurus with a 3.5L V6 and a left cylinder head issue** can be a **good deal if**:- The head is the **only major problem** and can be repaired affordably.
- You are **willing to invest in necessary fixes** (head rebuild/replacement, cooling system, transmission service).
- You **inspect the engine thoroughly** (compression test, leak-down test, visual inspection for warping or cracks).
- You **budget for potential secondary issues** (timing chain, water pump, sensors).
However, it is a **riskier purchase if**:- The head damage is **severe** (requiring a full engine rebuild or replacement).
- The vehicle has **high mileage (over 150K miles)** with **no service records**.
- The **transmission or cooling system** shows signs of neglect.
- You **cannot afford unexpected repairs** (e.g., $2,000 for a head rebuild plus transmission service).
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### **Recommendation**
1. **Get a Pre-Purchase Inspection (PPI)** Hire a **trusted mechanic** to:- Check for **cylinder head warping** (use a straightedge and feeler gauge).
- Test **compression and leak-down** to confirm head integrity.
- Inspect the **timing chain, tensioners, and guides**.
- Check **cooling system components** (water pump, hoses, thermostat).
- Test the **transmission** for slippage or rough shifting.
- Look for **oil leaks, exhaust leaks, or electrical issues**.
2. **Budget for Repairs** If the head is the only issue, allocate:- **$800 $1,500** for a **cylinder head rebuild** (if parts are reused).
- **$1,500 $2,500** for a **new head installation**.
- **$500 $1,200** for a **water pump replacement**.
- **$300 $800** for **transmission fluid flush and filter change**.
- **$200 $500** for **coolant system flush and new coolant**.
3. **Consider Alternatives** If the cylinder head is beyond repair, weigh whether:- A **full engine swap** (used 3.5L V6, $1,500 $3,000 installed).
- Buying a **similar vehicle with a known good engine** (e.g., a 2011 MKZ with the **3.7L V6**, which is more reliable).
4. **Buy from a Trusted Seller** Prefer:- **Private sellers with full service records**.
- **Auction houses with warranties** (e.g., Copart, IAA).
- **Dealers who offer a limited warranty** (even if short-term).
5. **Proceed with Caution** If the vehicle passes inspection and you re confident in your mechanic s work, this can be a **cost-effective project car** or a **reliable daily driver** after repairs. However, if the engine or transmission has **hidden issues**, it may become an **expensive money pit**.
**Final Verdict:**- **Worth it?** **Yes, if** the cylinder head is the only major issue, you can afford repairs, and the rest of the vehicle is in decent shape.
- **Not worth it?** **No, if** the engine has **hidden damage, the transmission
Buyer will need to replace the transmission oil filter, put a new pan gasket on, flush and add manufacturer specific fluids. Warranty period begins the day after delivery. Model: FORD EDGE. Some external sensors or solenoids may need to be replaced.
Picture in the listing may not be of actual item sold; it a stock picture only. Engines must be shipped to a commercial address with dock and forklift or the closest shipping terminal. Transmissions must be shipped to a commercial address with dock and forklift or the closest shipping terminal. Transfer cases will not be included with transmissions from 4x4 or All Wheel Drive vehicles.
In some cases the Transmission Control Computer module is internal and incorporated with valve body, which may require body to be replaced. Axle seals, front and drive shaft seals will also need to be replaced. Free shipping, if offered, applies only to commercial addresses with proper equipment dock and forklift unload. Most items are shipped the same-day as purchase.
Transmission lines will need flushed, along with the transmission oil cooler needs replaced if equipped, this to be done so contaminants from bad not ruin your replacement. Buyer pays return shipping if wrong color ordered. Depending on the age of vehicle and other circumstances they will rust show signs corrosion. Cylinder Head.
Quick shipping. LINCOLN MKZ 07-09 3.5L, LH. FORD TAURUS SEE ALSO TAURUS X 08-09 3.5L, LH. FORD TAURUS X SEE ALSO TAURUS 08-09 3.5L, LH.