At Performance Power Systems, we take pride in providing reliable, high-performance marine solutions. Recently, we completed a re-power project that involved outfitting a tender with a new Volvo Penta D4-320 engine. Let’s explore the details of this upgrade and why the D4-320 was the ideal choice.
The Volvo Penta D4-320: Marine Solution Built for Excellence
The Volvo Penta D4-320 is a 3.7-liter, in-line 4-cylinder diesel engine that packs 320 horsepower, making it an exceptional option for power and efficiency. This engine is known for its innovative design, offering the perfect blend of performance and dependability. Below are some of the features that set it apart:
Advanced Fuel Injection System:
- Common-rail fuel injection ensures precise fuel distribution, improving efficiency and smooth performance.
- Turbocharging and Dual Overhead Camshafts: These features maximize engine response and enhance power output.
- Robust Construction: The cast iron engine block and head, reinforced with a ladder frame, are designed for longevity.
- Efficient Valve Technology: Thanks to 4-valve technology and hydraulic lash adjusters, the engine requires less maintenance and offers excellent reliability.
- Integrated Cooling and Lubrication: Oil-cooled pistons and a seawater-cooled tubular oil cooler keep the engine operating at peak performance in demanding marine environments.

The Re-Powering Journey: Why Trust Performance Power Systems
When it comes to maintaining, repairing, or upgrading your Volvo Penta engine, Performance Power Systems is a partner you can trust. We’re proud to be an authorized Volvo Penta dealer, which means we have direct access to the latest technologies and factory-certified training. Our team’s deep expertise allows us to handle even the most complex installations, ensuring your engine operates at peak performance.
The key steps included:
- During this recent re-powering project, we applied the same level of commitment that defines all of our services. Here’s how we ensure a smooth and professional installation process every time:
- Engine Removal: Our team began by safely removing the old engine, using our expertise to protect the vessel’s existing systems. This ensures that no surrounding components are compromised, a step that can easily be overlooked by less experienced teams.
- D4-320 Installation: When installing the new engine, our factory-trained technicians made certain that every detail was correct. We carefully positioned the D4-320 within the tender, ensuring precise alignment with the drive system to avoid future issues.
- System Integration: Because we’re authorized by Volvo Penta, we understand how to seamlessly integrate advanced electronics and the common-rail fuel system into your vessel’s existing infrastructure. This integration is essential for achieving optimal engine performance and efficiency.
- Cooling System Enhancement: We know that a properly installed cooling system is vital in marine environments. That’s why we installed the seawater-cooled oil cooler with precision, ensuring the engine will maintain an ideal operating temperature.
- Final Testing and Calibration: At Performance Power Systems, we don’t cut corners. After installation, we thoroughly tested and fine-tuned the engine to ensure it met Volvo Penta’s exacting standards. Our commitment to quality means we leave nothing to chance, delivering a high-quality re-powering service every time.
By choosing Performance Power Systems, you’re partnering with a team dedicated to delivering long-lasting results. We stand by our work with a focus on customer satisfaction, ensuring your Volvo Penta engine will continue to perform at its best, season after season.
If you’re considering re-powering your vessel, contact us to learn how we can help you find the right solution. Let our team recommend the marine solutions you need to keep your vessel running smoothly.