---
product_id: 2627452
title: "Attwood 1749-4 Turbo 4000 Series II In-Line Blower, For 4-Inch Interior Diameter Vent Hose, Water Resistant, 12-Volt"
brand: "attwood"
price: "€ 56.62"
currency: EUR
in_stock: true
reviews_count: 13
category: "Attwood"
url: https://www.desertcart.it/products/2627452-attwood-1749-4-turbo-4000-series-ii-in-line-blower
store_origin: IT
region: Italy
---

# 12V power efficiency Water-resistant durability 25% more airflow Attwood 1749-4 Turbo 4000 Series II In-Line Blower, For 4-Inch Interior Diameter Vent Hose, Water Resistant, 12-Volt

**Brand:** attwood
**Price:** € 56.62
**Availability:** ✅ In Stock

## Summary

> 🌊 Power your boat’s breath with silent turbo airflow!

## Quick Answers

- **What is this?** Attwood 1749-4 Turbo 4000 Series II In-Line Blower, For 4-Inch Interior Diameter Vent Hose, Water Resistant, 12-Volt by attwood
- **How much does it cost?** € 56.62 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/2627452-attwood-1749-4-turbo-4000-series-ii-in-line-blower)

## Best For

- attwood enthusiasts

## Why This Product

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

## Key Features

- • **Energy-Smart Design:** Consumes up to 40% fewer amps than competitors, maximizing efficiency without sacrificing power.
- • **Effortless Installation:** Built-in mounting feet allow quick vertical or horizontal setup with standard #10 fasteners.
- • **Marine-Grade Durability:** Water-resistant housing and marine ignition protection ensure reliable performance in harsh environments.
- • **Whisper-Quiet Operation:** Engineered blade pitch minimizes noise—enjoy powerful airflow without the annoying whine.
- • **Turbocharged Ventilation Power:** Patented 5-blade fan delivers 25% more airflow for superior engine compartment ventilation.

## Overview

The Attwood 1749-4 Turbo 4000 Series II In-Line Blower is a 12-volt, water-resistant ventilation powerhouse designed for 4-inch vent hoses. Featuring a patented 5-blade fan and engineered blade pitch, it delivers 25% more airflow with significantly reduced noise and up to 40% greater energy efficiency. Its marine ignition protection and built-in mounting feet make installation flexible and durable, ideal for engine compartments, bilges, and galleys. Trusted by boaters for quiet, efficient ventilation that outperforms competitors.

## Description

This Attwood Turbo 4000 Series II In-Line Blower provides outstanding ventilation airflow for areas such as engine compartments, galleys, bilges, and heads. It features a patented, in-line design and the 5-blade fan maximizes airflow and efficiency. The blade sweep and pitch are engineered for a high lift coefficient, which results in increased airflow speed for optimized ventilation. It matches the airflow of competitive in-line blowers with significantly reduced noise output. For added durability, it has an engineered plastic housing that resists deformation during installation, and prevents blade-to-housing interference. No other bilge blowers in the industry provide such powerful system output at such low power input in a compact size. System airflow exceeds older-style in-line blowers by as much as 25 percent. It is also up to four times more efficient than competitive blowers as it draws up to 40 percent fewer amps. This blower is marine ignition protected and has built-in mounting feet that permit easy vertical or horizontal installation. This 12-volt, water-resistant white blower is intended for use with 4-inch interior diameter ventilation hose. It installs with #10 fasteners. Attwood Corporation has been an award-winning leader in engineering, testing, and manufacturing of the highest quality marine products for over 100 years. We deliver safe and reliable lighting, fuel systems, water systems, seating & pedestals, swim ladders, custom upholstery, and general marine accessories that are easy to install and meet regulatory compliance.

Review: Great airflow - Works perfectly. Creates strong air flow and is easy to install with some skills.
Review: Nice and quiet and powerful - After replacing the non-working engine compartment fan on my sailboat after about five years of duty, I wanted a quieter fan, something that didn’t whine and whir in annoyance at having to move air. What a pleasant surprise once I installed this fan and operated it for the first time. A pleasant sound could be barely heard, no whine, no whistle, no buzz. Just a quiet low pitched murmur. I ran to the fan vents to see if air was indeed being expelled, half expecting to find a weak breeze, but the air flow was just a strong. Maybe I lucked out on this, but it is so quiet and unobtrusive on deck near the air vents that I no longer need to jam a duct elbow to deflect the sound

## Features

- 12-volt, water-resistant white blower intended for use with 4-inch interior diameter vent hose.
- Marine ignition protected and has built-in mounting feet for easy vertical or horizontal installation
- Provides outstanding ventilation airflow for areas such as engine compartments, galleys, bilges, and heads
- Features a patented, in-line design and the 5-blade fan maximizes airflow and efficiency
- The blade sweep and pitch are engineered for a high lift coefficient, resulting in increased airflow speed for optimized ventilation
- Matches the airflow of competitive in-line blowers with significantly reduced noise output
- For 7/8" I.D. thru-hull
- Ideal for livewell drains
- Brass snaps and plates
- Note: Not for use with chemicals or fuels

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003EX02DA |
| Best Sellers Rank | #39,720 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #3 in Boat Engine Blowers |
| Brand | attwood |
| Color | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,688) |
| Department | unisex-adult |
| Engine Type | 4 Stroke |
| Fuel Type | Gasoline |
| Global Trade Identification Number | 00022697174949 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 pounds |
| Item model number | 1749-4 |
| Manufacturer | Attwood |
| Material | Plastic |
| Mounting Type | built-in feet |
| National Stock Number | 4140-01-590-0107 |
| OEM Part Number | ATT17494 |
| Operation Mode | automatic |
| Product Dimensions | 6.25"D x 6.06"W x 4.53"H |
| Recommended Uses For Product | Boating |
| UPC | 022697174949 |
| Voltage | 12 Volts |

## Product Details

- **Brand:** attwood
- **Color:** White
- **Engine Type:** 4 Stroke
- **Item Weight:** 1 Pounds
- **Material:** Plastic

## Images

![Attwood 1749-4 Turbo 4000 Series II In-Line Blower, For 4-Inch Interior Diameter Vent Hose, Water Resistant, 12-Volt - Image 1](https://m.media-amazon.com/images/I/319PvNnAivL.jpg)
![Attwood 1749-4 Turbo 4000 Series II In-Line Blower, For 4-Inch Interior Diameter Vent Hose, Water Resistant, 12-Volt - Image 2](https://m.media-amazon.com/images/I/31LqOMU2bmL.jpg)
![Attwood 1749-4 Turbo 4000 Series II In-Line Blower, For 4-Inch Interior Diameter Vent Hose, Water Resistant, 12-Volt - Image 3](https://m.media-amazon.com/images/I/31ZNNI5cIWL.jpg)
![Attwood 1749-4 Turbo 4000 Series II In-Line Blower, For 4-Inch Interior Diameter Vent Hose, Water Resistant, 12-Volt - Image 4](https://m.media-amazon.com/images/I/31tmQhDHbWL.jpg)
![Attwood 1749-4 Turbo 4000 Series II In-Line Blower, For 4-Inch Interior Diameter Vent Hose, Water Resistant, 12-Volt - Image 5](https://m.media-amazon.com/images/I/31zoD+XT7KL.jpg)

## Questions & Answers

**Q: What's the cfm?**
A: SpecificationsModel No. Rated Voltage CFM Open Flow CFM In System* Current Draw Amps Fuse SizeTurbo 3000 12V nominal 120 90 2.6 4-amp13.6V design 145 100 3.1 4-ampTurbo 4000 12V nominal 200 100 2.5 5-amp13.6V design 230 125 2.9 5-amp24V nominal 200 100 1.5 3-amp27.2V design 230 125 2.0 3-amp

**Q: Can I wire this to a “replacement plug” and plug it into the wall ?**
A: This is a 12 volt unit.   If you plug it in to a 120 or 240  volt system, it wil destroy itself in moments.  You need to search for a unit compatible with the voltage of your home.

**Q: Will this work connected directly to a 12 volt 100 watt solar panel? I already purchased it for that reason. Hoping I don't need a battery.**
A: Late answer, but yes. I wired a pair of these direct to a pair of 100 watt solar panels (separate panels, different areas of acreage) for moving air for chickens and rabbits.  They sound like drones, but the animals are doing well with the 106 degree heat index.

**Q: Has anyone used this to filter air for an rv? for burning man, my thought was to pair this with a spectre air filter and mount through the rv ceiling.**
A: Use common sense,don't choke it and you should be Ok,I use mine to exhaust attic crawlspace, they have been running for 4 years, geo

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great airflow
*by T***N on September 19, 2025*

Works perfectly. Creates strong air flow and is easy to install with some skills.

### ⭐⭐⭐⭐⭐ Nice and quiet and powerful
*by Y***N on April 28, 2025*

After replacing the non-working engine compartment fan on my sailboat after about five years of duty, I wanted a quieter fan, something that didn’t whine and whir in annoyance at having to move air. What a pleasant surprise once I installed this fan and operated it for the first time. A pleasant sound could be barely heard, no whine, no whistle, no buzz. Just a quiet low pitched murmur. I ran to the fan vents to see if air was indeed being expelled, half expecting to find a weak breeze, but the air flow was just a strong. Maybe I lucked out on this, but it is so quiet and unobtrusive on deck near the air vents that I no longer need to jam a duct elbow to deflect the sound

### ⭐⭐⭐⭐⭐ Works as advertised
*by B***N on August 18, 2025*

My old fan ran, but the shaft was dragging and I suspect it was both drawing additional current and approaching end of life. New one runs smoothly and quietly

## Frequently Bought Together

- Attwood 1749-4 Turbo 4000 Series II in-Line Blower, for 4-Inch Interior Diameter Vent Hose, Water Resistant, 12-Volt
- Better Boat 4 Inch Marine Blower Hose, 10' PVC Black, Ideal for Bilge, Engine, Galley, Bathroom Exhausts

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-22*