---
product_id: 6912008
title: "OTC 6043 Blast-Vac Multipurpose Cleaning Gun"
brand: "otc"
price: "€ 183.46"
currency: EUR
in_stock: true
reviews_count: 4
url: https://www.desertcart.sk/products/6912008-otc-6043-blast-vac-multipurpose-cleaning-gun
store_origin: SK
region: Slovakia
---

# Dual air/water vortex blast Simple 2-connection setup Stainless steel durability OTC 6043 Blast-Vac Multipurpose Cleaning Gun

**Brand:** otc
**Price:** € 183.46
**Availability:** ✅ In Stock

## Summary

> 💥 Blast through dirt like a pro with OTC 6043 – clean smarter, not harder!

## Quick Answers

- **What is this?** OTC 6043 Blast-Vac Multipurpose Cleaning Gun by otc
- **How much does it cost?** € 183.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/6912008-otc-6043-blast-vac-multipurpose-cleaning-gun)

## Best For

- otc enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Premium stainless steel construction ensures durability for every tough job.
- • **Quick Connect Setup:** Two easy connections—shop air and water spigot—get you cleaning faster, no hassle.
- • **Dual-Function Design:** Switch between powerful cleaning and vacuum modes with a simple venturi twist.
- • **Versatile Cleaning Power:** From engines to shop floors, one tool handles it all with unmatched efficiency.
- • **Effortless Cooling System Flush:** Attach to radiator or heater hoses and blast away grime in seconds.

## Overview

The OTC 6043 Blast-Vac Multipurpose Cleaning Gun combines a unique air/water vortex blast with a simple two-connection setup to deliver powerful cleaning and vacuuming capabilities. Crafted from durable stainless steel, it’s perfect for flushing cooling systems, washing engines, and cleaning shop floors efficiently and reliably.

## Description

OTC 6043 Blast-Vac Multipurpose Cleaning Gun

## Features

- Perfectly suited for quick and efficient cooling system flushing
- Simply attach it to a radiator or heater hoses and you’re in business
- Also usable in washing engines and even shop floors
- Just two simple connections - one to shop air, the other to a standard water spigot - creates a unique air/water vortex blast for powerful cleaning capabilities
- The tool can also be used to vacuum by turning the venturi inside the gun in the opposite direction

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Stainless Steel |
| Brand | OTC |
| Item dimensions L x W x H | 9 x 8.38 x 2.88 inches |
| Inlet Connection Type | Press |
| Outlet Connection Type | Faucet |
| Number of Ports | 2 |
| Outlet Connection Size | 0.75 Inches |
| Specification Met | (unset) |
| Valve Type | Globe Valve |
| Global Trade Identification Number | 00731413032851 |
| Manufacturer | OTC |
| UPC | 731413032851 |
| Item Weight | 14.4 ounces |
| Product Dimensions | 9 x 8.38 x 2.88 inches |
| Item model number | 6043 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 6043 |

## Product Details

- **Material:** Stainless Steel
- **Brand:** OTC
- **Item dimensions L x W x H:** 9 x 8.38 x 2.88 inches
- **Inlet Connection Type:** Press
- **Outlet Connection Type:** Faucet
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.75 Inches
- **Specification Met:** (unset)
- **Valve Type:** Globe Valve
- **Global Trade Identification Number:** 00731413032851

## Images

![OTC 6043 Blast-Vac Multipurpose Cleaning Gun - Image 1](https://m.media-amazon.com/images/I/519HW04PIAL.jpg)

## Questions & Answers

**Q: How do you use this to unclog a heater core without damaging it from the pressure?**
A: This is a risk. If your heater core is about to burst nothing can save you and would fail anyhow but if it is in good health it would survive the procedure without a problem. You just set your compressor to 45 PSI (max 60 PSI), plug this tool to outlet side of the heater core. Make sure the other side has long enough hose to get to large container where you would collect whatever is coming out. Turn the water on and start giving short 3 second air bursts every 5 seconds. So air 2-3 sec, wait 5 seconds and so on until you don't see anymore junk coming out from the heater core. I have successfully unclogged the heater cores on 2 of my cars this way and they are quite old. Keep in mind that you should flush your engine coolant system as well otherwise all the junk from there would get in the heater core and in few months it would be clogged again.

**Q: I assume ":...one to a typical water faucet" is talking about a garden hose?  Can Someone please verify how you hook this to a water source?**
A: Yes, this hooks up to water using a standard garden hose.  Search YouTube for "Heater Core Flush with OTC Blast-Vac" to see it in action (note: not my video)

**Q: Is the item exact as pictured i.e. metal housing and brass trigger? Or is it an all plastic?**
A: I purchased this some time ago.  It works great... The body (blue and black) areas are a composite plastic material which is very sturdy.  the trigger (as I recall) is brass.

**Q: Whats the smallest size hose that will fit on it?**
A: 5/8 will fit but it's tight

## Customer Reviews

### ⭐⭐⭐⭐⭐ Blast out nasty garbage
*by M***R on June 28, 2022*

Well first of all I was on the fence about buying this but turned out to be a good investment. I read many reviews and some said it was not genuine otc. Mine definitely was,came in a sealed box so no complaints there. Also by reading reviews I knew it wasn't coming with a air hose end so I ordered one with it. I'd take half a star off for that if I could. But that being said I got it all hooked up and ready to roll. Was happy with the overall quality of it. Make sure you have the drain open to relieve pressure and let the garbage out. I had tried 3 separate times to drain and used radiator flush (prestone) and it was still coming out filthy. A good blasting and there was all kinds of rust and chunks coming out that the liquid cleaner wasn't going to touch. Still need to do the heater core though. I've read the gun doesn't fit in there but we'll see I guess. Probably depends on the make and model. One other note looking at the pictures I would have guessed the nozzle end to be a flexible rubber that would expand with pressure but its not. Its a hard plastic so you have to really get the nozzle seated in good to seal the water pressure. Overall was very pleased with the product at the price point. Still going to take it to the dealership to have them flush and refill it but that's cause I'm super anal about proper maintenance and correct fluids. But they said it was extra for a deep flush which I really think I would have needed. At 100+ an hour this should get me on the regular price one I'd think. And I keep it for future use.

### ⭐⭐⭐⭐⭐ Great Product!!!
*by J***N on March 18, 2013*

I purchased this tool to flush out the cooling system on my 2007 Nissan Frontier. Once upon a time, I had a shop change the coolant in my vehicle, and they refilled the system with a standard coolant, rather than the special coolant required by Nissan. The color of the coolant was the same, and I took the shop's word that they were using a compatible coolant. Anyway, the standard coolant started corroding my cooling system and I noticed little gray blobs floating in my radiator.After running a cooling system flush/cleaner chemical through the system and draining the radiator, I removed the thermostat to begin flushing out all the old coolant. Using a garden hose and compressed air, the water started running clear after a few short blasts with this tool. First, I started back flushing through the upper radiator hose and catching all the old coolant through the bottom radiator hose. Next, I filled the overflow reservoir with water and used compressed air to force the water through the system. Then, I disconnected the heater hoses and flushed the heater core with water and air.Satisfied that all the old coolant was out of the system, I started rinsing out the lines with distilled water by pouring the water into the reservoir and upper radiator hose. (Tap water contains minerals that are not desirable to have in your coolant.) After pouring the distilled water into the system, I flushed out the water out with air only.Confident that all the old coolant was flushed, and at least 90% of the tap water I used for flushing, I replaced the thermostat and began preparation for refilling the cooling system. A quick pressure test showed no leaks, and I hooked up the other tool I used to refill the cooling system under vacuum to reduce the chance for air being introduced into the sytem.I do have a few quick notes on this tool that some of you may want to know. First, if you desire to flush out the tap water with distilled water, you will actually have to pour the distilled water into your hoses. This nifty tool lacks sufficient pressure to siphon water directly from bottles. Second, the tool does not come with an exhaust hose to direct liquids when it is in vacuum mode. A quick trip to your local home improvement store for some tubing and a hose clamp can take care of that, though.

### ⭐⭐⭐⭐⭐ Worked great, got heat back now.
*by C***T on February 17, 2019*

I have a 4 year old Ram 3500 Cummins Diesel with 160,000 miles. The cab heat stopped being hot, this truck would melt you out in a matter of minutes. But this winter the heat just was luke warm at best. I checked the blend doors, changed a thermostat even though I did not think it was the issue it was cheap enough and 160K was time. We had a recall for the water pump and took it in for a New pump figured cant hurt. The last resort before a complete dash tear down including discharging the AC to get to the heater core so a full day at least and hundreds of dollars or pay $1,500 for the dealer to do it. I bought this after watching a You Tube Video of it. It worked great now we have full heat back and it comes out at 150 plus degrees at 25 outside. Before we were getting around 75 degrees! The plastic Male to Male quick connect that comes with it sucks and leaks so I had a brass Male to Male and a brass quick connect. It is plastic, made well but I can see if you do not use your head it could break. Also you have to watch the PSI and amount of water you use so you do not blow apart the heater core. I ran 50-75 psi air and shot it in surges so you get slugs blasting through multiple times with varying amounts of water and did it from both directions multiple times. I also soaked the core for 30 mins with Thermocure and flushed and soaked in vinegar for 10 mins and flushed. Very happy

## Frequently Bought Together

- OTC 6043 Blast-Vac Multipurpose Cleaning Gun
- EPAuto Spill Proof Radiator Coolant Filling Funnel Kit
- BlueDevil Products 00203 Radiator Flush & Oil Degreaser - 1 Quart

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-22*