---
product_id: 98005788
title: "Yanmar 104511-78780 Belt Sea Water Pump \"M/19\" fits 2GM 2GMF 2GM20 2GM20F 2GM20FYEU 3GM 3GMF 3GM30 3GM30F 3GM30FYEU 2YM 3HM YSM Engines Model"
brand: "yanmar"
price: "€ 64.43"
currency: EUR
in_stock: true
url: https://www.desertcart.com.cy/products/98005788-yanmar-104511-78780-belt-sea-water-pump-m-19-fits
store_origin: CY
region: Cyprus
---

# Optimized for reliable sea water pump operation Precision fit for multiple Yanmar engine models Genuine OEM part ensuring durability Yanmar 104511-78780 Belt Sea Water Pump "M/19" fits 2GM 2GMF 2GM20 2GM20F 2GM20FYEU 3GM 3GMF 3GM30 3GM30F 3GM30FYEU 2YM 3HM YSM Engines Model

**Brand:** yanmar
**Price:** € 64.43
**Availability:** ✅ In Stock

## Summary

> ⚓ Keep your marine engine running smooth with Yanmar’s trusted belt pump part!

## Quick Answers

- **What is this?** Yanmar 104511-78780 Belt Sea Water Pump "M/19" fits 2GM 2GMF 2GM20 2GM20F 2GM20FYEU 3GM 3GMF 3GM30 3GM30F 3GM30FYEU 2YM 3HM YSM Engines Model by yanmar
- **How much does it cost?** € 64.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/98005788-yanmar-104511-78780-belt-sea-water-pump-m-19-fits)

## Best For

- yanmar enthusiasts

## Why This Product

- Trusted yanmar brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Lightweight:** Ultra-light 0.01 oz design with minimal packaging footprint for easy handling
- • **OEM Quality Assurance:** Original Yanmar part guarantees peak performance and longevity
- • **Seamless Compatibility:** Fits a wide range of Yanmar 2GM, 3GM, 2YM, and 3HM engine models for versatile use
- • **Effortless Installation:** Precision manufacturing means a perfect fit, reducing downtime and maintenance hassle
- • **Marine-Grade Reliability:** Engineered specifically for sea water pump belts, ensuring corrosion resistance and durability

## Overview

The Yanmar 104511-78780 Belt Sea Water Pump 'M/19' is a genuine OEM replacement part designed for a broad range of Yanmar marine engines including 2GM, 3GM, 2YM, and 3HM models. Lightweight and compact, it ensures reliable sea water pump operation with precision fit and marine-grade durability, making it an essential upgrade for professional boat owners and marine technicians.

## Description

Optimize the performance of your Yanmar marine engine with the OEM Yanmar V-Genuine Belt 104511-78780. Made by Yanmar, the original manufacturer, this belt ensures a perfect fit and trouble-free operation on a variety of models, including 2GM, 2GMF, 2GM20, 2GM20F, 2GM20FYEU, 3GM, 3GMF, 3GM30, 3GM30F and 3GM30FYEU. With part number 104511-78780, this belt is an original equipment part directly from Yanmar, ensuring its quality and reliability. Don't trust imitations or aftermarket parts that can compromise the performance of your engine. This genuine OEM belt is the perfect option to keep your engine running optimally and prolong its life. Whether you are a boating enthusiast, commercial boat owner or fleet operator, this belt is a must-have investment for proper maintenance of your Yanmar engine. Rely on proven Yanmar quality and performance with this OEM 104511-78780 V-Genuine Belt.

## Features

- Manufacturer number: 104511-78780
- Fits: 2GM // 3GM, 2GMF // 3GMF, 2GM20 // 3GM30, 2GM20F // 3GM30F, 2GM20FYEU // 3GM30FYEU, 3YM20 // 3YM30
- Original Yanmar Parts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Yanmar |
| Brand | Yanmar |
| Item Weight | 0.01 ounces |
| Package Dimensions | 6.34 x 5.91 x 0.63 inches |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 104511-78780 |

## Product Details

- **Brand:** Yanmar
- **Belt Style:** V Belt
- **Compatible Devices:** Water Pump
- **Item Weight:** 0.01 Ounces
- **Color:** Black

## Images

![Yanmar 104511-78780 Belt Sea Water Pump "M/19" fits 2GM 2GMF 2GM20 2GM20F 2GM20FYEU 3GM 3GMF 3GM30 3GM30F 3GM30FYEU 2YM 3HM YSM Engines Model - Image 1](https://m.media-amazon.com/images/I/41b1BMMUFSL.jpg)
![Yanmar 104511-78780 Belt Sea Water Pump "M/19" fits 2GM 2GMF 2GM20 2GM20F 2GM20FYEU 3GM 3GMF 3GM30 3GM30F 3GM30FYEU 2YM 3HM YSM Engines Model - Image 2](https://m.media-amazon.com/images/I/41-WCYWP74L.jpg)
![Yanmar 104511-78780 Belt Sea Water Pump "M/19" fits 2GM 2GMF 2GM20 2GM20F 2GM20FYEU 3GM 3GMF 3GM30 3GM30F 3GM30FYEU 2YM 3HM YSM Engines Model - Image 3](https://m.media-amazon.com/images/I/21SdVe0PWPL.jpg)

## Questions & Answers

**Q: Is this the m/19 size?**
A: I bought this for my fuel pump on my Yanmar 3gm30f... hope that helps

---

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---

*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-05*