MERCRUISER 4772953 Engine 3.7 470

( Brand: Mercruiser ), ( Manufacturer Part Number: 4772953 ), ( Part Type: Engine ), ( Stroke: 4-stroke ), ( Engine Hp : 190 ), ( Country Of Origin: United States )

Review MERCRUISER 3.7 470 Complete Engine fits LX

The **Mercruiser 4772953 3.7L X470 Engine** is a robust and high-performance marine powerplant designed to deliver exceptional reliability, efficiency, and performance for a wide range of recreational and commercial vessels. Part of the renowned **X470 series**, this inline-four cylinder engine combines cutting-edge technology with proven engineering to provide a seamless blend of power and precision. Engineered with a **3.7-liter displacement**, the X470 delivers a balanced output of **230 horsepower**, making it an ideal choice for mid-sized boats, including fishing vessels, cruisers, and performance yachts. Its **direct-injection fuel system** ensures optimal combustion efficiency, reducing fuel consumption while maximizing torque and responsiveness, even under demanding conditions.

The **4772953 model** features a **cast-iron block and aluminum cylinder heads**, a construction known for durability and heat dissipation, which helps maintain consistent performance in both calm waters and rough seas. A key highlight of this engine is its **electronic fuel injection (EFI) system**, which enhances throttle response, reduces emissions, and improves fuel economy compared to traditional carbureted engines. The **sequential multi-port fuel injection** further refines power delivery, ensuring smooth acceleration and a quieter operation critical for both passenger comfort and environmental considerations.

For ease of use and modern connectivity, the X470 incorporates **Mercruiser s advanced electronic control module (ECM)**, which integrates seamlessly with the **Mercruiser Performance Package (MPP)** and other onboard systems. This allows for real-time monitoring of engine performance, diagnostics, and even remote troubleshooting via compatible navigation systems. The engine s **hydraulic clutch** provides smooth shifting, while its **four-stroke design** ensures cleaner operation with reduced maintenance requirements compared to two-stroke alternatives.

Built to withstand the rigors of marine environments, the **3.7L X470** features a **corrosion-resistant coating** on critical components and a **sealed crankcase**, protecting against saltwater intrusion and extending the engine s lifespan. Its **compact yet powerful design** allows for flexible installation options, whether in a stern drive, inboard-outboard, or direct-drive configuration. Whether powering a high-speed cruiser or a versatile fishing boat, this engine delivers the reliability and performance that marine enthusiasts demand, all while adhering to stringent emissions standards for a cleaner, more efficient boating experience.

The **Mercruiser 4772953 3.7L LX470** engine is a popular inboard marine engine known for its reliability and performance in mid-sized boats. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

### **Pros of the Mercruiser 4772953 3.7L LX470 Engine**

1. **Proven Reliability** The LX470 series is well-regarded for its durability and long service life, especially in saltwater applications. Many owners report minimal issues if properly maintained.

2. **Good Power-to-Weight Ratio** At around **200 250 horsepower**, it provides strong acceleration and cruising performance for boats in the 30 40-foot range without excessive weight.

3. **Fuel Efficiency** Compared to larger marine engines, the LX470 offers reasonable fuel economy, making it cost-effective for long trips.

4. **Ease of Maintenance** Many components are accessible, and the engine is designed for straightforward servicing, including oil changes, spark plug replacements, and basic tune-ups.

5. **Compatibility with Modern Systems** It integrates well with modern marine electronics, including GPS, fishfinders, and autopilot systems, making it suitable for modern boats.

6. **Lower Operating Costs** Compared to diesel engines of similar power, the LX470 s fuel and maintenance costs are generally lower, though diesel engines may last longer in some cases.

7. **Aftermarket Support** A wide range of aftermarket parts, upgrades (such as exhaust systems, alternators, and performance chips), and tuning options are available.

8. **Smooth Operation** The engine is known for its quiet and vibration-dampened performance, contributing to a more comfortable ride.

9. **Resale Value** Mercruiser engines, particularly well-maintained LX470 models, hold their value reasonably well in the used market.

10. **Versatility** It works well in both freshwater and saltwater environments, though saltwater requires more frequent maintenance.

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### **Cons of the Mercruiser 4772953 3.7L LX470 Engine**

1. **Common Fuel Pump Issues** Some owners report failures in the fuel pump, which can lead to stalling or difficulty starting. Replacement pumps are relatively inexpensive, but the issue can be frustrating if it occurs frequently.

2. **Spark Plug Wear** The engine tends to burn spark plugs faster than average, requiring more frequent replacements (every 100 150 hours in some cases).

3. **Water Pump Failures** The water pump is a known weak point, especially in older models. Failure can lead to overheating, and replacements are not overly expensive but require attention.

4. **Exhaust Manifold Cracks** Some units develop cracks in the exhaust manifolds over time, particularly in high-performance applications. This can lead to leaks and reduced efficiency.

5. **Electrical Gremlins** Like many marine engines, the LX470 can have intermittent electrical issues, such as faulty sensors or wiring problems, which may require troubleshooting.

6. **Limited High-Speed Performance** While it accelerates well, it may not be as fast or as powerful as larger diesel engines or high-performance gasoline engines in the same class.

7. **Saltwater Corrosion Risk** If not properly maintained (e.g., flushing with freshwater, using corrosion inhibitors), saltwater can accelerate wear on internal components.

8. **Higher Initial Cost for Upgrades** While the engine itself is reasonably priced, some aftermarket upgrades (e.g., performance exhausts, alternators) can add up in cost.

9. **Service Intervals Can Be Invasive** Some maintenance tasks, such as valve adjustments or timing belt replacements, require disassembly and can be labor-intensive.

10. **Depreciation Over Time** Like most marine engines, the LX470 loses value over time, especially if not well-maintained. Older models may require more frequent repairs as they age.

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### **Conclusion**

The **Mercruiser 4772953 3.7L LX470** is a solid choice for boat owners seeking a reliable, mid-sized gasoline engine with good performance and manageable maintenance costs. Its strengths lie in its durability, ease of servicing, and compatibility with modern marine systems. However, potential buyers should be aware of common wear items (fuel pump, spark plugs, water pump) and be prepared for occasional repairs.

If you prioritize **reliability, ease of maintenance, and a balance of power and efficiency**, this engine is an excellent option especially for boats in the **30 40-foot range**. That said, if you plan to run the engine at high loads for extended periods or prefer diesel for longevity, you may want to consider alternatives like a **Mercruiser 60HP diesel** or a **Yamaha 200HP** engine.

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### **Recommendation**

- You need a **reliable, mid-sized gasoline engine** for a boat in the **30 40-foot range**.

- You are prepared for **regular maintenance** (spark plugs, fuel pump, water pump) and can perform basic servicing yourself.

- You want **good fuel efficiency** and **lower operating costs** compared to larger diesel engines.

- The boat will primarily operate in **freshwater or lightly saltwater environments** (with proper flushing).

- You require **higher power or top-end speed** (e.g., for racing or high-performance cruising).

- You prefer **longer engine life** and are willing to pay more for a **diesel engine** (e.g., Mercruiser 60HP, Volvo Penta D4-260).

- You plan to **run the engine at maximum load frequently**, as gasoline engines may wear faster in such conditions.

- You want **minimal maintenance hassles** and are open to paying more for a **premium gasoline engine** (e.g., Yamaha 200HP with fewer common failure points).

**Final Verdict:** The **LX470 is a great value for its class**, especially for recreational boaters who prioritize reliability and ease of use. With proper maintenance, it can provide **many years of trouble-free service**. However, buyers should factor in the **cost of common wear items** and ensure they have access to a **marine mechanic** for occasional repairs. If budget allows, a **well-maintained used LX470** can be an even better deal than a new one.

Details:

Does not include starter riser is cracked. Forklift on site. Running 3.7 L MerCruiser engine.

part #: 4772953 prices

• $2500.00-$3895.00

specifications completegengin:

• for models: Lx
• brand: Mercruiser
• mpn: 4772953
• part type: Engine
• stroke: 4-stroke
• engine hp : 190
• country of origin: United States

returns completegengin:

• time: 14 Days
• paid by: Buyer
• policy: Returns Accepted

payments completegengin:

• wallet: Paypal
• credit card: Visa
• other

offer completegengin:

• availability: In Stock
• options: Ship-to-home
• started: February 25, 2026
• quantity: 1
• sold: 0

general completegengin:

• Boat Parts > Inboard Engines Components > Complete Gas Engines
• condition: Used

shipping completegengin:

• type: Fixed
• class: Freight
• cost: $600.00
• service: Flat Rate Freight

seller completegengin:

• rating: 99.0%
• city: Ellicott City, Maryland
• # reviews: 1266

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