My Account
Shopping Cart

Balmar 48YSP3YMB AltMount Serpentine Pulley Conversion Kit for Yanmar 3YM30

Manufacturer

Balmar

<p>Balmar has established itself as a trusted name in marine electrical systems, specializing in advanced charging solutions designed to meet the demanding power requirements of modern vessels. With a focus on reliability and performance, Balmar engineers products that keep marine electrical systems running smoothly in challenging saltwater environments.</p><h3>Marine Charging Excellence</h3><p>At the heart of Balmar's product line are their high-output <a href="/12782-balmar-alternators-200087">alternators</a> and precision <a href="/12782-balmar-voltage-regulators-201148">voltage regulators</a>, engineered specifically for marine applications. Unlike standard automotive alternators, marine charging systems must contend with constant vibration, temperature fluctuations, and corrosive saltwater exposure. Balmar addresses these challenges with robust construction, marine-grade materials, and advanced voltage regulation technology that ensures optimal battery charging while preventing overcharging damage.</p><h3>Comprehensive Marine Solutions</h3><p>Beyond charging components, Balmar's expertise extends to critical drivetrain elements. Their <a href="/12782-balmar-drives-gearcases-transoms-200346">drives, gearcases, and transoms</a> components reflect the same commitment to marine-grade durability that defines their electrical products. These components are designed to withstand the harsh marine environment while delivering reliable performance season after season.</p><h3>Precision Fuel System Components</h3><p>Balmar also offers specialized solutions for marine fuel delivery systems, including <a href="/12782-balmar-fuel-injection-pressure-regulator-6124">fuel injection pressure regulators</a> that maintain consistent fuel pressure for optimal engine performance. Proper fuel pressure regulation is essential for modern marine engines, ensuring efficient combustion, reliable starting, and smooth operation across varying load conditions.</p><h3>Why Marine Professionals Choose Balmar</h3><p>What sets Balmar apart is their deep understanding of marine electrical demands. Cruising vessels, fishing boats, and commercial marine applications all require dependable power systems that can support navigation electronics, communication equipment, refrigeration, and other essential systems. Balmar's products are engineered with these real-world demands in mind, providing the charging capacity and reliability that marine applications require. Whether you're upgrading an existing charging system or building out a new vessel's electrical infrastructure, Balmar components deliver the performance and longevity that serious boaters depend on.</p>

Part Number

48YSP3YMB
06/02/2036 8:33 AM
Sale Price

$691.98

3 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Balmar 48-YSP-3YM-B is an AltMount Serpentine Pulley Conversion Kit specifically engineered for Yanmar 3YM30 diesel engines. This patented system upgrades your engine from a traditional single vee pulley to a high-performance serpentine pulley configuration, enabling the use of Balmar high-output alternators and delivering superior power transfer efficiency.

Key Benefits:

  • Serpentine pulley provides greater surface contact between the belt and pulley, accommodating much higher PTO requirements
  • Quieter operation and virtual elimination of belt dust
  • Reduced vibration for smoother engine performance
  • Supports alternator loads exceeding 100A for 12V applications

What's Included:

  • Three Ten-Groove (J10) Pulleys
  • Two J10, 39-inch circumference serpentine belts (one spare)
  • Complete mounting hardware

The system installs by placing and fastening a conversion pulley over the existing crank pulley and replacing the water pump pulley. AltMount Pulley Kits are designed to be used with Balmar 6-Series, XT-Series and AT-Series Alternators. Note: If using an AT-200A Alternator, a longer belt length may be required.

Good...............................................................................................................................................

Shopping was easy

I'd order from Thmotorsports again.

Soo good

Easy to find what I need and easy to order.

Fast and easy

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy