1. Propellers Boat Parts For Sale
  2. sku: 12518749708103731
  3. VOLVO 85835

VOLVO 85835 Duo Prop Rear 315

fits model: B-6. make: Volvo.

85835 Volvo Aluminum Duo Prop B-6 Rear #315

( Manufacturer Part Number: 85835 ), ( Part Type: Aluminum Prop )

Review VOLVO Aluminum Duo Prop Rear #315 fits B-6

The **Volvo 85835 DuoProp B-6 Rear 315** is a high-performance, dual-propeller propulsion system meticulously engineered for marine applications where efficiency, reliability, and precision are paramount. Designed as part of Volvo Penta s advanced **DuoProp** line, this model combines cutting-edge hydrodynamics with intelligent power distribution to deliver unmatched maneuverability, fuel economy, and reduced wear on both the vessel and its propulsion system. The **B-6 Rear 315** configuration features two independently controlled propellers mounted in a rear-facing, side-by-side arrangement, allowing for seamless control of thrust vectoring, yaw stability, and dynamic positioning. Each propeller is driven by a robust, high-torque transmission system, ensuring optimal power transfer while minimizing mechanical stress. The system s **315** designation likely refers to the maximum continuous power rating (in horsepower or kilowatts) it can handle, making it ideal for mid-sized to large yachts, superyachts, and commercial vessels requiring both speed and finesse. The **DuoProp** technology eliminates the need for traditional rudders by leveraging the differential thrust of the two propellers, enabling the vessel to turn in place, hover, and navigate tight spaces with unprecedented ease. This propulsion system is particularly well-suited for applications where docking precision, fuel efficiency, and reduced wake are critical, such as in harbor operations, offshore support vessels, or luxury cruisers where passenger comfort and operational flexibility are top priorities. Built with Volvo Penta s signature durability and backed by advanced diagnostics, the **85835 DuoProp B-6 Rear 315** represents a fusion of marine innovation and engineering excellence, setting a new standard for intelligent propulsion in the industry.

### **Pros and Cons of Buying a Volvo 85835 Duo Prop B-6 Rear 315**

#### **Pros:**

1. **Reliability and Durability** Volvo marine engines are known for their robust construction and long service life, especially in the B-series diesel engines. The B-6 model is a proven workhorse, often used in commercial and recreational fishing boats.

2. **Power and Performance** With 315 horsepower, this engine provides strong torque and acceleration, making it suitable for larger boats, heavy loads, or demanding applications like fishing or towing.

3. **Fuel Efficiency** Diesel engines like the B-6 are generally more fuel-efficient than gasoline counterparts, which can be cost-effective for frequent or long-duration use.

4. **Low Maintenance Costs (Compared to Gasoline)** Diesel engines tend to have fewer moving parts and last longer with proper care, reducing long-term maintenance expenses.

5. **Resale Value** Volvo marine engines retain their value well, especially well-maintained models. The B-series is still in demand in the used market.

6. **Versatility** The **duo-prop (dual-propeller) setup** allows for better maneuverability, improved handling, and reduced wake, which is beneficial for fishing boats, patrol vessels, or boats operating in tight spaces.

7. **Aftermarket Support** Volvo marine engines have a strong aftermarket presence, with readily available parts, service manuals, and technicians familiar with the B-series.

8. **Environmental Considerations** Diesel engines produce fewer emissions per horsepower than gasoline engines, which may be a factor for environmentally conscious buyers.

9. **Compatibility with Modern Boats** The **rear-mount configuration** (315) is common in modern boat designs, making it easier to find compatible hulls and drive systems.

10. **Proven Track Record** The B-series engines have been used for decades in both commercial and recreational applications, with many still operating reliably after 200,000 miles.

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#### **Cons:**

1. **High Initial Cost** Volvo marine engines, especially well-maintained or low-hour examples, can be expensive upfront. The B-6 is no exception, and a **duo-prop setup** may add to the cost.

2. **Complexity** Diesel engines require more specialized knowledge to maintain compared to gasoline engines. Buyers must be prepared for occasional professional servicing.

3. **Fuel and Emissions Regulations** Newer emissions standards (e.g., Tier 3) may require modifications or upgrades, increasing long-term costs if the engine is older.

4. **Weight** Diesel engines are heavier than gasoline alternatives, which may affect boat handling, stability, and fuel efficiency in some cases.

5. **Cold Weather Challenges** Diesel engines can be harder to start in cold climates due to fuel gelling or battery issues. Auxiliary heating systems may be necessary.

6. **Noise and Vibration** Some diesel engines, especially older models, can be louder and vibrate more than modern gasoline engines, which may affect comfort.

7. **Depreciation Over Time** While Volvo engines hold value well, they may still depreciate if not properly maintained or if newer, more efficient models enter the market.

8. **Limited High-Speed Performance** Compared to some gasoline outboards or sterndrives, diesel engines may not reach the same top speeds, though they excel in torque and cruising efficiency.

9. **Fuel Storage and Handling** Diesel fuel can degrade over time and attract contaminants, requiring proper storage and filtration systems.

10. **Potential for Hidden Issues** Older diesel engines may have wear-and-tear problems (e.g., turbocharger failure, fuel injectors, or timing issues) that could require costly repairs if not thoroughly inspected.

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### **Conclusion:**

The **Volvo 85835 Duo Prop B-6 Rear 315** is an excellent choice for buyers seeking a **reliable, high-torque, and long-lasting marine engine** particularly for fishing boats, work vessels, or applications where durability and efficiency are prioritized. Its **duo-prop setup** enhances maneuverability, and the **B-series reputation** ensures strong resale value and parts availability.

However, the **higher upfront cost, maintenance requirements, and potential cold-weather challenges** mean it s best suited for **serious boaters** who can commit to proper upkeep. If you re looking for a **high-performance, low-maintenance engine** that will serve you for decades with the right care, this is a strong contender. On the other hand, if you prefer **simplicity, lower initial costs, or high-speed cruising**, a gasoline outboard or sterndrive might be more appropriate.

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### **Recommendation:** **Buy this engine if:**

- You need a **durable, high-torque workhorse** for fishing, towing, or commercial use.

- You re prepared for **regular maintenance** (oil changes, fuel system checks, turbo inspections).

- You want **long-term reliability** and don t mind the **higher initial investment**.

- The **duo-prop setup** aligns with your boat s needs (e.g., better handling, reduced wake).

**Avoid this engine if:**

- You re on a **tight budget** and prefer lower upfront costs.

- You lack experience with **diesel engines** and can t commit to proper servicing.

- You prioritize **high top speeds** over torque and fuel efficiency.

- You operate in **extreme cold climates** without proper fuel and starting solutions.

**Final Verdict:** This is a **premium choice** for the right buyer one who values **longevity, power, and versatility** over convenience. Always **get a professional pre-purchase inspection** to ensure no major issues exist before purchasing.

Details:

With the manufacturer part number 85835, this propeller is built to meet standards of excellence expected for marine parts. The Volvo Duo Prop B-6 Rear 315 is a high-quality propeller designed for boats, specifically manufactured by.

part #: 85835 price

  • $275.00

specifications propboapar:

  • for models: B-6
  • for makes: Volvo
  • mpn: 85835
  • part type: Aluminum Prop

payments propboapar:

  • other
  • wallet: Paypal
  • credit card: Visa

general propboapar:

  • condition: Remanufactured
  • Parts Accessories > Boat Parts > Propellers

offer propboapar:

  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • quantity: 1
  • started: May 11, 2026

returns propboapar:

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

shipping propboapar:

  • class: Standard
  • type: Calculated
  • cost: $0.00
  • carrier: USPS
  • transit: 5-9 Days
  • service: USPS Ground Advantage

seller propboapar:

  • city: Mukilteo, Washington
  • # reviews: 55
  • rating: 100.0%
for models: b-6, for makes: volvo, part type: aluminum prop,
category: boat parts > propellers, sku: 12518749708103731,
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1 offer $275.00 USD
  • Remanufactured. Offer #1 priced at $275.00 + $0.00 shipping estimate = $275.00* total. With the manufacturer part number , this propeller is built to meet the standards of excellence expected for marine parts The Volvo Duo Prop B-6 Rear 315 is a high-quality propeller designed for boats, specifically manufactured by Volvo.FREE SHIPPING

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