48-YSP-6LY-A - Balmar Yanmar 6LY Series Pulley Conversion Kit by | Aztek Computers
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SKU: B4OO7Q3S4N |  Mfg. Part: 48-YSP-6LY-A  | UPC: 676205510134  | 
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48-YSP-6LY-A - Balmar Yanmar 6LY Series Pulley Conversion Kit by AltMount

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$841.90  $1,136.57
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Product Overview

Yanmar 6LY Series Pulley Conversion Kit

This AltMount® Serpentine Pulley Conversion Kit is specifically designed for Yanmar Diesel Engines, providing a reliable and efficient solution for your engine needs.

Yanmar Engines Covered: 6LY, 6LYA-STP, 6LY2-STP

Kit Includes:

  • Three Ten-Groove (J10) Pulleys
  • Two J10, 55″ Circumference Serpentine Belts (one spare)
  • Mounting Hardware

Note: If you specify an AT-200A Alternator, a longer belt length may be required.

This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Expert Overview

The AltMount Serpentine Pulley Conversion Kit, part number 48-YSP-6LY-A, is designed for specific Yanmar diesel engines, including the 6LY, 6LYA-STP, and 6LY2-STP series. This kit provides a complete solution for converting the engine's pulley system, which can be beneficial for maintaining or upgrading engine performance and reliability. It includes three ten-groove (J10) pulleys, two J10 55-inch circumference serpentine belts (one designated as a spare), and all necessary mounting hardware. This product is intended for IT and marine professionals managing or servicing systems that utilize these specific Yanmar engine models, offering a direct replacement or upgrade path for critical engine components. The inclusion of a spare belt helps minimize downtime by providing an immediate replacement option.

Technical Specifications

  • Designed for Yanmar 6LY, 6LYA-STP, 6LY2-STP engines
  • Includes three durable Ten-Groove pulleys
  • Comes with two high-quality serpentine belts
  • Complete with necessary mounting hardware
  • Spare belt included for convenience

Product Details

  • Manufacturer:
  • Model Number:
  • ASIN:
  • UPC:
  • Condition:
  • Weight:
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  • Updated:
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  • Country of Origin:
  • Balmar
  • 48-YSP-6LY-A
  • B0B5ZZQQMP
  • 676205510134
  • New
  • 5.65 lbs
  • 10 X 9 X 10
  • Aug 02, 2026
  • Apr 16, 2025
  • UNITED STATES
Product Identifiers: Brand: Balmar • Part #: 48-YSP-6LY-A • UPC: 676205510134 • ASIN: B0B5ZZQQMP • Category: Parts

Frequently Asked Questions

Which Yanmar engine models are compatible with this kit?

This pulley conversion kit is specifically designed for Yanmar 6LY, 6LYA-STP, and 6LY2-STP series diesel engines.

What components are included in the AltMount Serpentine Pulley Conversion Kit?

The kit includes three ten-groove (J10) pulleys, two J10 55-inch circumference serpentine belts (one spare), and all necessary mounting hardware.

What is the purpose of the spare belt included in the kit?

A spare J10, 55-inch circumference serpentine belt is included for convenience, providing a direct replacement to help minimize potential downtime.

Are there any considerations for belt length when using this kit?

Yes, if an AT-200A Alternator is specified, a longer belt length may be required than what is included in this standard kit.

48-YSP-6LY-A - Balmar Yanmar 6LY Series Pulley Conversion Kit by AltMount

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$841.90