1. Inboard Complete Gas Engines For Sale
  2. sku: 6506752903913891
  3. VOLVO PENTA 10472756

VOLVO PENTA 10472756 Engine Freshwater 4.3 V6

fits model: Aq270, Marine. make: Volvo.

10472756 Volvo Penta 4.3 V6 Aq270 Marine Engine Freshwater Low Hours Runs Excellent

( Brand: Volvo Penta ), ( Manufacturer Part Number: 10472756 ), ( Part Type: Engine ), ( Country Of Origin: United States )

Review VOLVO PENTA 4.3 V6 Engine Freshwater Low Hours Runs Excellent fits AQ270 MARINE

The **Volvo Penta 10472756 4.3L V6 AQ270 Freshwater Marine Engine** is a robust and high-performance powerplant designed to deliver exceptional reliability, efficiency, and durability for demanding freshwater applications. Engineered with Volvo Penta s signature precision, this inline six-cylinder diesel engine combines cutting-edge technology with a legacy of marine engineering excellence, making it an ideal choice for luxury yachts, performance cruisers, and commercial vessels alike. The **4.3-liter displacement** provides a balanced blend of torque and power, ensuring smooth acceleration and responsive handling even under heavy loads, while its **AQ270** designation signifies compliance with the latest environmental standards, including strict emissions regulations for freshwater use. Built with a **cast-iron block and aluminum cylinder heads**, this engine offers superior strength and thermal efficiency, reducing wear and extending operational lifespan. The **direct-injection common-rail fuel system** enhances combustion performance, delivering cleaner emissions and improved fuel economy without sacrificing power typically producing around **270 horsepower** at the optimal RPM range. Its **turbocharged architecture** ensures consistent performance across varying loads, while the **intercooler** helps maintain optimal air intake temperatures, further boosting efficiency and reducing thermal stress. The engine s **electronic fuel injection (EFI)** and **electronic engine management system (EMS)** provide precise control over fuel delivery, ignition timing, and turbo boost, allowing for seamless integration with Volvo Penta s advanced propulsion systems, including their **IPS (Inboard Performance System)** and **Z-Drive** configurations. Designed for ease of maintenance, the **4.3L V6** features a **dry-sump lubrication system**, which enhances reliability in demanding conditions by keeping oil separate from the water, reducing the risk of contamination. The engine s **compact yet robust design** allows for efficient installation in tight spaces, while its **durable marine-grade materials** such as corrosion-resistant coatings and sealed components ensure longevity even in harsh freshwater environments. Whether powering a high-speed cruiser, a fishing vessel, or a luxury cabin cruiser, this engine exemplifies Volvo Penta s commitment to performance, sustainability, and innovation, delivering a harmonious blend of power, efficiency, and dependability for serious boaters who demand the best.

### **Pros and Cons of Buying a Used Volvo Penta D4-300 (10472756) 4.3L V6 AQ270 Freshwater Marine Engine**

#### **Pros**

1. **Reliability and Durability**

The Volvo Penta D4-300 series is known for its robust construction and long service life, especially when properly maintained. Many units last well beyond 1,000 hours with regular upkeep, making it a solid choice for both recreational and light commercial use.

2. **Fuel Efficiency**

Compared to older marine diesel engines, the D4-300 offers improved fuel economy, particularly in the 4.3L V6 configuration. It runs more efficiently than many older inline-4 or inline-6 engines, reducing operating costs over time.

3. **Torque and Performance**

The 4.3L V6 provides strong torque (around 200 250 lb-ft, depending on model year), making it well-suited for medium-sized boats (25 40 feet) that require steady power for cruising, fishing, or light towing.

4. **Freshwater Cooling System**

Since this engine is designed for freshwater use, it avoids the corrosion and maintenance challenges associated with saltwater cooling systems, which can be costly to repair over time.

5. **Aftermarket Support and Parts Availability**

Volvo Penta remains a major player in marine engines, and the D4-300 is still supported by a wide network of dealers, service centers, and aftermarket parts suppliers. Finding replacement components or professional servicing is generally easier than for discontinued or less common engines.

6. **Lower Initial Cost Compared to New Engines**

As a used unit, this engine is significantly cheaper than a new Volvo Penta or other modern marine diesel engines (e.g., Yamaha, Mercury, or Yanmar). This makes it an attractive option for budget-conscious buyers who still want a reliable powerplant.

7. **Proven Technology**

The AQ270 (or similar electronic fuel injection systems) in this engine is a step up from older mechanical fuel injection systems, offering better fuel atomization, smoother operation, and easier diagnostics. This reduces the likelihood of common issues like clogged injectors or inconsistent idling.

8. **Versatility**

The 4.3L V6 fits a wide range of applications, from cruising yachts and fishing boats to small commercial vessels. Its power band is well-suited for steady-speed cruising rather than high-speed racing.

---

#### **Cons**

1. **Age and Wear**

The 10472756 engine is likely from the late 1990s to early 2000s, meaning it may have accumulated significant hours (potentially 1,000 hours). Older engines are more prone to wear in critical components like:

- **Cylinder liners and pistons** (potential for scoring or wear if the engine was not properly maintained).

- **Rod bearings and crankshaft** (common failure points in high-hour diesel engines).

- **Turbocharger** (may need replacement if the engine was run at high loads or without proper oil changes).

- **Fuel injectors** (carbon buildup or wear can lead to poor performance or failure).

A thorough **engine inspection, compression test, and oil analysis** are essential before purchase.

2. **Maintenance Requirements**

While the D4-300 is durable, it demands regular maintenance to avoid costly failures. Key upkeep includes:

- **Oil changes every 100 200 hours** (or as recommended by the previous owner).

- **Fuel system cleaning** (injectors and filters should be serviced to prevent clogging).

- **Cooling system flushes** (freshwater systems can still develop scale or algae if not properly treated).

- **Belt and pulley inspections** (timing belts can fail catastrophically if neglected).

- **Exhaust manifold and turbo checks** (rust or cracks can develop over time).

If the engine has been poorly maintained, these repairs can add up quickly.

3. **Electronics and Diagnostics**

The AQ270 system is more advanced than older mechanical systems but can be finicky. Issues like:

- **Faulty sensors** (e.g., crankshaft position, throttle position, or boost sensors).

- **ECU glitches** (electronic control unit may need reprogramming or replacement).

- **Wiring harness failures** (common in older marine engines due to vibration and moisture).

can be difficult to diagnose without proper tools or expertise.

A **scan tool** should be used to check for error codes before purchasing.

4. **Resale Value**

Used marine diesel engines, especially older models, depreciate quickly. If you plan to sell or trade it in later, you may not recover much of your initial investment unless the engine is in pristine condition.

5. **Noise and Vibration**

The 4.3L V6 is louder and slightly more vibration-prone than some modern engines, particularly if the mounts or flywheel housing are worn. This can be an issue in quieter boats or for sensitive passengers.

6. **Fuel Quality Dependence**

Older diesel engines are more sensitive to fuel quality. Poor fuel (with water, contaminants, or old diesel) can cause:

- **Injector clogging**.

- **Pump or filter failures**.

- **Carbon buildup in combustion chambers**.

Regular use of fuel additives (e.g., Seafoam, Sta-Bil) is recommended.

7. **Limited Modern Upgrades**

Unlike newer Volvo Penta engines (e.g., D6, D10, or IPS systems), this model lacks modern features such as:

- **Remote diagnostics via Bluetooth/Wi-Fi**.

- **Adaptive cruise control**.

- **Hybrid or electric assist options**.

If you want cutting-edge technology, this engine is outdated.

8. **Potential for Hidden Damage**

Older marine engines can have **hidden issues** such as:

- **Cracked blocks or heads** (from overheating or poor cooling).

- **Rod or main bearing wear** (leading to metal contamination in the oil).

- **Exhaust manifold leaks** (common in freshwater-cooled systems due to thermal cycling).

A **pre-purchase inspection by a marine mechanic** is highly recommended to avoid costly surprises.

---

### **Conclusion**

The **Volvo Penta D4-300 4.3L V6 (AQ270) freshwater engine** is a **solid, reliable choice** for buyers who prioritize durability, fuel efficiency, and freshwater cooling. It is well-suited for **medium-sized boats** that require steady power for cruising, fishing, or light towing. However, its **age and potential wear** mean that **proper inspection and maintenance history** are critical before purchase.

This engine is **not ideal** for buyers who:

- Want a **low-maintenance, plug-and-play** solution.

- Plan to run it **high hours per year** without professional oversight.

- Need **modern diagnostics or advanced features**.

- Are unable to **budget for potential repairs** (e.g., turbo, injectors, bearings).

For **responsible owners who inspect the engine thoroughly, maintain it religiously, and are prepared for occasional repairs**, this engine offers **excellent value** and long-term performance. For **casual or neglectful owners**, the risks of failure and high repair costs may outweigh the benefits.

---

### **Recommendation**

1. **If you find a well-documented engine with:**

- **Under 1,000 hours** (or at least **detailed maintenance records**).

- **No history of overheating, excessive smoke, or oil leaks**.

- **Passes a compression test and oil analysis** (low metal content, no signs of wear).

- **A pre-purchase inspection by a trusted marine mechanic** (costs $200 $400 but saves thousands in potential repairs).

- **A reasonable price (typically $3,000 $6,000 used, depending on condition)**.

** Proceed with purchase, budget for a full service (oil change, fuel system clean, belt inspection), and maintain it strictly.**

2. **If the engine has:**

- **High hours (1,500 )** without records.

- **Visible wear (oil leaks, rust, uneven exhaust smoke)**.

- **No inspection or questionable maintenance history**.

** Avoid unless you are prepared for a major overhaul (potentially $5,000 $10,000 ).**

3. **Alternative Considerations:**

- If you want **new or nearly new reliability**, consider a **used Volvo Penta D6 (2010 ) or a well-maintained Yanmar 3GM or 4GM**.

- If you need **lower maintenance**, a **gasoline outboard (e.g., Yamaha 200 300 HP)** may be simpler but less efficient.

- If you re on a **tight budget**, a **used Cummins or Caterpillar marine diesel** (if properly inspected) can offer even more longevity but at a higher upfront cost.

**Final Verdict:** The **Volvo Penta D4-300 4.3L V6 is a great used engine for the right buyer** one who

Details:

Key Features: Powerful 4.3L v6 performance. Clean, well-maintained condition. Cosmetically, it presents very well for its age with clean components and minimal visible wear. It has been inspected and shows even compression across all cylinders, indicating strong internal health.

For sale is a Volvo Penta 4.3L V6 Marine engine paired with AQ270 compatibility, known for its durability, power, and reliability on the water. The engine runs strong with no known mechanical issues and is considered water-ready. Freshwater use only.

part #: 10472756 price

  • $3995.00

specifications completegengin:

  • for models: Aq270, Marine
  • for makes: Volvo
  • brand: Volvo Penta
  • mpn: 10472756
  • part type: Engine
  • country of origin: United States

returns completegengin:

  • policy: No Returns

general completegengin:

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

shipping completegengin:

  • class: Freight
  • type: Fixed
  • service: Flat Rate Freight
  • cost: $450.00

seller completegengin:

  • rating: 99.1%
  • # reviews: 1770
  • city: Alvin, Texas

offer completegengin:

  • sold: 0
  • availability: In Stock
  • quantity: 1
  • options: Ship-to-home
  • best offers: True
  • started: April 29, 2026

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for models: aq270, marine, for makes: volvo, part type: engine, country of origin: united states,
category: boat parts > inboard engines components > complete gas engines, sku: 6506752903913891,
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1 offer $3995.00 USD
  • Used. Offer #1 priced at $3995.00 + $450.00 shipping estimate = $4445.00* total. For sale is a Volvo Penta 4.3L V6 marine engine paired with AQ270 compatibility, known for its durability, power, and reliability on the water.+$450.00 shipping

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