fits model: Commander, Dakota, Cherokee. make: Jeep. year: 2005–2007.

( Manufacturer Part Number: 53021159AD ), ( Items Included: 1 Broken Cam Bridge ), ( Interchange: 306-155 ), ( Type: Cylinder Head Assembly ), ( Ipn: 306-00155 ), ( Manufacturer Warranty: 1 Month ), ( Id: 00856a0f-9780-4cc7-98ba-c83d171c5dbd ), ( Country Of Origin: United States )
The **Jeep 53021159AD 2006-2007 Commander, Dakota, and Cherokee 4.7L Left Cylinder Head** is a meticulously engineered, high-performance replacement part designed to restore peak functionality and reliability to your Jeep s iconic 4.7L V8 engine. Crafted from premium cast iron, this cylinder head is built to exacting specifications, ensuring a precise fit and optimal sealing performance across the 2006 through 2007 model years of the Jeep Commander, Dakota, and Wrangler Cherokee. The head features a robust valve cover with integrated spark plug tubes, allowing for easy access to the engine s ignition system while maintaining a clean, streamlined appearance. Engineered with four intake and four exhaust valves per cylinder, this component is optimized for efficient airflow, enhancing both power delivery and fuel economy. The head includes the necessary valve springs, retainers, and keepers, along with a complete set of intake and exhaust valves, ensuring a complete and ready-to-install solution. Compatible with the 4.7L 380/392/403 cubic inch engine variants, this cylinder head is a direct replacement for the original equipment manufacturer (OEM) part, guaranteeing compatibility with the Jeep s fuel injection system, camshaft, and rocker arm assembly. Whether you're restoring a classic Jeep or upgrading an existing engine, this cylinder head delivers the durability and performance expected from Jeep s legendary off-road heritage. Built to withstand the demands of both on-road and off-road driving, it provides a seamless integration with the engine s internal components, ensuring reliable operation under varying conditions. With its precise machining and attention to detail, this part is an essential upgrade for enthusiasts seeking to maintain or enhance the performance of their Jeep s 4.7L powerplant.
### **Pros and Cons of Buying a 2006-2007 Jeep Commander/Dakota/Cherokee with a 4.7L Engine and a Left Cylinder Head Issue**
#### **Pros**
1. **Proven Reliability of the 4.7L Engine**
The 4.7L V8 (also found in the Dakota and Cherokee) is a well-known, durable engine when properly maintained. It is less prone to catastrophic failure compared to some modern turbocharged or high-mileage engines. Many examples with high mileage (200,000 miles) run reliably if they ve had regular oil changes and basic upkeep.
2. **Strong Aftermarket Support**
Jeep s older V8 engines have a large aftermarket presence. Parts like cylinder heads, gaskets, and fuel pumps are widely available and often affordable. Tuning options (like Holley or Edelbrock kits) are also common, allowing for improved performance if desired.
3. **Off-Road Capability**
The Commander (based on the Grand Cherokee) and Dakota/Cherokee (with proper suspension upgrades) are capable off-road vehicles. The 4.7L paired with a transfer case and locking differentials makes them suitable for light to moderate off-roading, especially with aftermarket lifts or skid plates.
4. **Lower Cost of Ownership (Compared to Modern Jeeps)**
Fuel efficiency is modest ( 12-15 MPG combined), but gas prices are less volatile than for modern turbocharged engines. Maintenance costs (oil changes, spark plugs, belts) are relatively low compared to newer Jeep models with complex electronics.
5. **Classic Jeep Aesthetics and Build Quality**
The 2006-2007 models retain the rugged, boxy charm of older Jeep designs. The Commander, in particular, has a unique, spacious interior that appeals to those who prefer a more traditional SUV layout over modern crossovers.
6. **Potential for Customization**
The platform allows for easy modifications, such as:- Lift kits (2-4 inches) for improved ground clearance.
- Heavy-duty suspension upgrades (e.g., Bilstein, Fox).
- Exhaust and intake modifications for better sound and performance.
- Bedliners or tonneau covers for the Dakota/Cherokee.
7. **Resale Value (Niche Market Appeal)**
While not as high as newer Jeeps, the Commander and Dakota still hold value among enthusiasts, especially well-maintained examples. The 4.7L engine s reputation for durability helps retain some appeal.
8. **Spacious Interior and Practicality**
The Commander offers a large cargo area (similar to a full-size SUV), while the Dakota/Cherokee provides a workable bed for hauling. The interior is roomy, with a more traditional seating arrangement than modern Jeeps.
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#### **Cons**
1. **Cylinder Head Issue (Left Side)**
The most significant drawback is the left cylinder head problem. Common symptoms include:- **Leaking oil or coolant** around the head studs or gasket.
- **Overheating** due to poor sealing or warped heads.
- **Misfires or rough idle** if the head is cracked or improperly seated.
- **Blown head gaskets** (though less common than in older engines, they can still occur).
The 4.7L is known for head gasket failures, especially if the engine was overheated or neglected. A left cylinder head issue suggests either:- A **warped head** (requiring resurfacing or replacement).
- **Failed head studs** (common in this engine; often requires replacement).
- **A cracked head** (more severe, may need a new head).
Repairing this issue can be **expensive (often $1,500 $3,000 )** depending on whether parts or labor are DIY or shop-based.
2. **Fuel Economy and High Fuel Costs**
The 4.7L V8 is thirsty, averaging **12-15 MPG combined**. With rising gas prices, this can add up quickly, especially for daily driving. If you frequently drive long distances, this may not be ideal.
3. **Outdated Safety Features**
The 2006-2007 models lack modern safety tech like:- **Stability control** (standard on later models).
- **Advanced airbag systems** (some early models had basic side airbags).
- **Electronic stability programs** (though the Commander had some, it s not as robust as newer systems).
- **Bluetooth or modern infotainment** (the radio is basic by today s standards).
4. **Rust Concerns**
Jeep s older models (especially those driven in snowy or coastal climates) are prone to **frame and subframe rust**. A thorough inspection of the undercarriage, wheel wells, and frame rails is essential before purchasing.
5. **Transmission Reliability (If Not a 41RLE)**
The **41RLE automatic transmission** (found in the Commander) is generally reliable, but older **4-speed automatics** (in the Dakota/Cherokee) can develop **slipping or rough shifting** over time. If the transmission has been neglected, repairs can be costly.
6. **Electrical Gremlins**
Older Jeep models are notorious for **electrical issues**, such as:- **Faulty window regulators** (common in the Dakota/Cherokee).
- **Intermittent power steering or brake failures**.
- **Check engine lights** due to minor sensor issues.
These problems can be annoying and may require diagnostic work.
7. **Discontinued Parts and Dealer Support**
While aftermarket parts exist, **OEM (original equipment manufacturer) parts** for older Jeeps are harder to find from dealers. This means you may rely more on aftermarket suppliers, which can sometimes lead to inconsistent quality.
8. **Comfort and Ride Quality**
The 2006-2007 models have a **firmer ride** compared to modern Jeeps, which are often softer and more refined. On-road comfort may feel less polished, especially on rough highways.
9. **Fuel System Issues**
The **fuel pump and injectors** in the 4.7L can fail over time, leading to **hard starts, stalling, or poor performance**. Replacing the fuel pump ( $300 $600) is a common mid-life expense.
10. **Resale Depreciation**
While not as severe as some modern vehicles, Jeeps (especially older models) depreciate quickly. If you plan to sell later, you may not recoup much of the purchase price unless it s a well-maintained, low-mileage example.
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### **Conclusion**
Buying a **2006-2007 Jeep Commander/Dakota/Cherokee with a 4.7L engine and a left cylinder head issue** can be a **great deal** if:- The **head issue is minor** (e.g., a blown gasket or loose studs) and **budgeted for**.
- You **plan to use it for occasional driving, off-roading, or as a project vehicle**.
- You **don t mind older tech and lower fuel efficiency** in exchange for durability and customization potential.
However, it may **not be the best choice** if:- You **prioritize daily comfort, fuel efficiency, or modern safety features**.
- The **cylinder head repair is extensive** (e.g., a cracked head or warped block) and exceeds your budget.
- You **expect to keep the vehicle long-term** without major repairs.
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### **Recommendation**
1. **If the Cylinder Head Issue is Minor (e.g., Gasket Replacement or Stud Retightening):**- **Proceed with caution**, but **budget $1,000 $2,000 for potential repairs** in the first year.
- **Get a pre-purchase inspection (PPI)** from a **Jeep specialist** to confirm the extent of the head issue.
- **Test drive the vehicle** to check for overheating, misfires, or electrical problems.
- **Consider buying from a reputable dealer or private seller with full service records**.
2. **If the Cylinder Head Issue is Major (e.g., Cracked Head or Warped Block):**- **Avoid unless you re prepared for a major repair** (potentially $2,500 $4,000 ).
- **Look for a used 4.7L Jeep with a known good head** (check for **oil leaks, coolant mixing, or compression tests**).
- **Consider alternatives** like a **2008 Commander with the 5.7L or 6.1L Hemi** (if you want better reliability).
3. **If You Want a More Reliable Jeep:**- **2008 Grand Cherokee (with 5.7L or 6.1L Hemi)** More refined, better fuel economy, and fewer cylinder head issues.
- **2011 Wrangler (with 3.6L Pentastar or 3.0L EcoDiesel)** More modern tech, better safety, and easier maintenance.
- **Used 2014 Jeep SUVs** If you need daily reliability, newer models (even used) offer better long
Quick shipping. Free shipping, if offered, applies only to commercial addresses with proper equipment dock and forklift unload. Picture in the listing may not be of actual item sold; it a stock picture only. Buyer pays return shipping if wrong color ordered.
Depending on the age of vehicle and other circumstances they will rust show signs corrosion. 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.
Some external sensors or solenoids may need to be replaced. Engines must be shipped to a commercial address with dock and forklift or the closest shipping terminal. Axle seals, front and drive shaft seals will also need to be replaced. Transmissions must be shipped to a commercial address with dock and forklift or the closest shipping terminal.
In some cases the Transmission Control Computer module is internal and incorporated with valve body, which may require body to be replaced. 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. Transfer cases will not be included with transmissions from 4x4 or All Wheel Drive vehicles.