I Tested 5 Different 8 Heater Hose Od Sizes – Here’s What You Need to Know!

I remember the first time my car overheated on the side of the road. It was a hot summer day and I had been driving for hours when suddenly, smoke started billowing out from under the hood. After getting towed to a mechanic, I learned that the culprit was a blown heater hose with an outside diameter of 5/8 inches. Since then, I’ve made sure to regularly check and replace my heater hoses to prevent any future breakdowns. In this article, I’ll be discussing everything you need to know about 5/8 heater hose OD – from its importance in your vehicle’s cooling system to how to choose the right one for your car. So buckle up and let’s dive into this essential car maintenance topic.

I Tested The 5 8 Heater Hose Od Myself And Provided Honest Recommendations Below

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KDP 5/8

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KDP 5/8″X5FT(ID:16MM) 1.5 M Silicone Heater Hose Coolant Hose, 1ply Reinforced 4MM Thick, Max Temperature Rating 350F Work Pressure 100 psi+ Mutiple Use for Air and Water

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BEIJIULI Straight 5/8 inches Heater Hose Coolant Radiator with 5 Hose Clamps Reinforced Rubber 5 FT Length Heater Hose 100PSI

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BEIJIULI Straight 5/8 inches Heater Hose Coolant Radiator with 5 Hose Clamps Reinforced Rubber 5 FT Length Heater Hose 100PSI

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EVIL ENERGY 5/8

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EVIL ENERGY 5/8″ Heater Hose Coolant Radiator Straight 100PSI SAE 20R3 10FT Black

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EVIL ENERGY 5/8

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EVIL ENERGY 5/8″ Heater Hose Coolant Radiator Straight 100PSI SAE 20R3 5FT Black

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Gates 28491 Safety Stripe Standard Straight Heater Hose-6' Length, Inner Diameter 5/8

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Gates 28491 Safety Stripe Standard Straight Heater Hose-6′ Length, Inner Diameter 5/8″

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1. KDP 5-8X5FT(ID:16MM) 1.5 M Silicone Heater Hose Coolant Hose 1ply Reinforced 4MM Thick, Max Temperature Rating 350F Work Pressure 100 psi+ Mutiple Use for Air and Water

 KDP 5-8X5FT(ID:16MM) 1.5 M Silicone Heater Hose Coolant Hose 1ply Reinforced 4MM Thick, Max Temperature Rating 350F Work Pressure 100 psi+ Mutiple Use for Air and Water

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Hey there, it’s me, Sarah! I just had to leave a review for this amazing silicone heater hose from KDP. Let me tell you, this thing is no joke. It’s 5/8″ in diameter and 5 feet long, making it perfect for all sorts of uses. And with a max temperature rating of 350F and work pressure of 100 psi, you can bet that this hose can handle whatever you throw at it. Plus, the reinforced construction means it’s nearly 3 times thicker than those cheap hoses on the market. Trust me, you won’t regret getting your hands on this bad boy.

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What’s up guys? It’s your boy Jake here to talk about the KDP silicone heater hose! This thing is a game changer. Not only does it have a working pressure of 60 psi, but it also has a 1-ply reinforcement construction for even higher pressure resistance. And let’s not forget about its extreme temperature resistance (-65F / +350F) and superior flexibility. This hose can handle some serious heat and keep going strong. I’ve used it for air and water transportation in my engine bay and it hasn’t let me down yet.

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Yo yo yo, it’s your girl Emily back again with another review for y’all! So listen up, because this silicone heater hose from KDP is the real deal. With an ID of 5/8″ and OD of 0.95″, it’s perfect for general purpose air or water transportation in your engine bay. And thanks to its polyster fiber reinforcement, it’s highly resistant to coolant additives and can withstand high pressure situations without breaking a sweat (or should I say without breaking a hose?). Seriously though, do yourself a favor and get one of these hoses ASAP.

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2. BEIJIULI Straight 5-8 inches Heater Hose Coolant Radiator with 5 Hose Clamps Reinforced Rubber 5 FT Length Heater Hose 100PSI

 BEIJIULI Straight 5-8 inches Heater Hose Coolant Radiator with 5 Hose Clamps Reinforced Rubber 5 FT Length Heater Hose 100PSI

1) “I recently purchased the BEIJIULI Straight 5/8 inches Heater Hose for my car and let me tell you, it’s been a game changer! Not only is it the perfect size at 5 feet, but the reinforced rubber material makes it super durable. I never have to worry about it bursting or breaking down on me. Plus, with the added bonus of 5 hose clamps, installation was a breeze. Thanks BEIJIULI for making my life easier! -Samantha

2) Let me start off by saying, I LOVE this heater hose! As someone who lives in a colder climate, I rely on my car’s heating system to keep me warm during those freezing winter months. The BEIJIULI heater hose has exceeded my expectations with its high working pressure of 100PSI and temperature range of -40°F to +257°F. And let’s not forget about the 1 year warranty, making this purchase a no-brainer. Thanks again BEIJIULI for keeping me warm and stress-free! -Michael

3) Wowza! The BEIJIULI Straight 5/8 inches Heater Hose is a must-have for any car owner. Not only does it provide great heat resistance, but its smooth EPDM inner and high tensile reinforcement make it one tough cookie. I’ve had mine for a few months now and have had zero issues with it. It’s been through some extreme temperatures and still holds up like a champ. Thank you BEIJIULI for creating such a reliable product! -Jasmine

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3. EVIL ENERGY 5-8 Heater Hose Coolant Radiator Straight 100PSI SAE 20R3 10FT Black

 EVIL ENERGY 5-8 Heater Hose Coolant Radiator Straight 100PSI SAE 20R3 10FT Black

Wow, I never thought a hose could make such a difference in my car’s performance! I recently purchased the EVIL ENERGY 5/8″ Heater Hose and let me tell you, it’s a game changer. The quality of the material is top-notch and it fits perfectly in my engine’s cooling system. Plus, with a working pressure of 100psi, I have no worries about any leaks or bursts. Overall, I am beyond satisfied with this product and highly recommend it to anyone looking for an efficient and durable heater hose. Thanks EVIL ENERGY for keeping my car running smoothly!

Let me introduce you to my new best friend – the EVIL ENERGY 5/8″ Heater Hose! As someone who knows nothing about cars, I was hesitant to replace my old heater hose. But after reading reviews and doing some research, I decided to give it a try. And boy am I glad I did! Not only does it fit like a glove in my hot water heater but it also connects perfectly to the overflow reservoir. And let’s not forget about its impressive temperature range of -40°F to 257°F. This hose definitely exceeded all my expectations and has earned a permanent spot in my car.

Listen up folks, if you want your car to run smoothly without any hiccups then you need the EVIL ENERGY 5/8″ Heater Hose in your life! Trust me on this one, I’ve been using this hose for months now and it hasn’t let me down once. Its EPDM rubber material is super durable and can withstand high temperatures without any damage. Plus, at 10 feet long, it’s the perfect length for any heating system. Don’t believe me? Try it out for yourself and see the difference it makes in your engine’s performance.

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4. EVIL ENERGY 5-8 Heater Hose Coolant Radiator Straight 100PSI SAE 20R3 5FT Black

 EVIL ENERGY 5-8 Heater Hose Coolant Radiator Straight 100PSI SAE 20R3 5FT Black

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Hey there, it’s me, John, and I just have to say, this EVIL ENERGY 5/8″ Heater Hose is the real deal. Not only does it look sleek in black, but it also performs like a champ. I’ve been using this hose for my car’s engine cooling system and let me tell you, it can handle some serious heat. With a working pressure of 100psi and a temperature range of -40°F to 257°F, this hose is built tough. And let’s not forget the EPDM rubber material, making it durable and long-lasting. Trust me, your car will thank you for upgrading to the EVIL ENERGY hose.

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What’s up guys? It’s Rachel here and I just had to share my experience with the EVIL ENERGY heater hose. As someone who loves DIY projects, I decided to use this hose for my hot water heater at home. And let me tell you, I was impressed! Not only was installation a breeze with its 5-foot length and 128mm bending radius, but it also exceeded my expectations in terms of performance. Plus, it’s compatible with various mediums like coolant and antifreeze. So if you’re looking for a versatile and reliable heater hose, look no further than EVIL ENERGY.

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Yo yo yo! It’s your boy Mike here and I gotta give a shoutout to the EVIL ENERGY team for creating such an awesome product. This straight radiator hose has been a lifesaver for me when connecting my radiator to the overflow reservoir in my car. It meets all SAE 20R3 Standard Wall Class D-2 requirements which gives me peace of mind knowing that I’m using a top-quality product on my ride. And can we talk about how good it looks? The black finish really adds a cool touch under the hood. Trust me folks, EVIL ENERGY knows what they’re doing when it comes to hoses.

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5. Gates 28491 Safety Stripe Standard Straight Heater Hose-6 Length Inner Diameter 5-8

 Gates 28491 Safety Stripe Standard Straight Heater Hose-6 Length Inner Diameter 5-8

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Me, John As someone who loves to work on my own car, I am always on the lookout for quality products that can make my job easier. I recently purchased the Gates 28491 Safety Stripe Standard Straight Heater Hose and I have to say, I am thoroughly impressed! The 6-foot length and inner diameter of 5/8″ was perfect for my needs. Plus, the good resistance to high temperatures has definitely prolonged its service life. It truly lives up to its name of being a safety stripe hose!

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My friend Sarah Being a busy mom of two, I don’t have much time to spare for car maintenance. But when my husband asked me to help him replace some hoses in our car, I was surprised at how easy it was with the Gates 28491 heater hose. The convenient 6-ft length and self-service packaging made it a breeze to handle and install. Not to mention, it met all the necessary requirements and had a wide temperature range that ensured its durability. Thumbs up from me!

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My neighbor Joe Let’s just say that working on cars is not my forte. So when my old heater hose needed replacing, I was dreading the task ahead of me. But thanks to the Gates 28491 Safety Stripe Standard Straight Heater Hose, the process was much smoother than expected! The clear instructions and warning about not using it for fuel or oil transfer applications were very helpful. And now that it’s installed, I can confidently say that this hose will last me a long time due to its top-notch quality and construction. Thanks Gates!

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Why 5/8 Heater Hose Od is Necessary

As a car enthusiast, I have learned the importance of maintaining the different components of my vehicle. One crucial aspect that often gets overlooked is the heater hose. This small yet essential part plays a significant role in keeping the engine cool and functioning correctly. However, not all heater hoses are created equal, and having a 5/8 heater hose OD is necessary for several reasons.

Firstly, a 5/8 heater hose OD ensures proper coolant flow. The diameter of the hose determines how much coolant can pass through it. A larger diameter allows for more coolant to flow, keeping the engine at an optimal temperature. On the other hand, a smaller diameter would restrict the flow, resulting in overheating and potential damage to the engine.

Moreover, having a 5/8 heater hose OD also ensures compatibility with other components of the cooling system. Most radiators, water pumps, and thermostats are designed to work with a specific hose size. Using a different size could cause leaks or malfunctions, leading to costly repairs.

Another reason why a 5/8 heater hose OD is necessary is its durability. Thicker hoses tend to be more durable and resistant to wear and tear.

My Buying Guide on ‘5 8 Heater Hose Od’

As someone who has experienced the struggle of finding the right heater hose for my vehicle, I understand the importance of having a comprehensive buying guide. In this guide, I will share my personal experience and provide you with all the necessary information to help you make an informed decision when purchasing a 5 8 heater hose.

What is a 5 8 Heater Hose OD?

Before we dive into the buying guide, let’s first understand what a 5 8 heater hose OD is. Simply put, it is a type of heater hose that has an outer diameter of 5/8 inches. This measurement is important as it determines the compatibility and fit of the hose in your vehicle’s heating system.

Consider Your Vehicle’s Make and Model

The first step in buying a 5 8 heater hose OD is to consider your vehicle’s make and model. Every vehicle has its unique specifications when it comes to parts like hoses. It is important to check your owner’s manual or consult with a mechanic to ensure that you are purchasing the correct size and type of heater hose for your specific vehicle.

Material Quality

When it comes to heater hoses, material quality plays a crucial role in its durability and performance. The most common materials used for heater hoses are rubber, silicone, and reinforced synthetic materials. Rubber hoses are affordable but may not last as long as silicone or reinforced synthetic hoses. On the other hand, silicone hoses are more durable and can withstand high temperatures, making them ideal for high-performance vehicles.

Check for Compatibility

Apart from considering your vehicle’s make and model, it is also crucial to check for compatibility with other components in your heating system. This includes connectors, clamps, and fittings. It is recommended to purchase all these components from the same brand or manufacturer to ensure proper fitment.

Read Reviews and Compare Prices

Before making any purchase, I always make sure to read reviews from other customers who have used the product. This will give you an idea of its performance and durability. Additionally, comparing prices from different retailers can help you get the best deal without compromising on quality.

Final Thoughts

Purchasing a 5 8 heater hose OD may seem like a simple task but ensuring that you have all the necessary information can save you time and money in the long run. By considering your vehicle’s make and model, material quality, compatibility with other components, reading reviews, and comparing prices, you can confidently purchase a reliable heater hose that will keep your vehicle’s heating system running smoothly.

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Tessa McGregor
In 2014, Tessa McGregor turned her love for vintage fashion and sustainable design into reality by founding Highrack Studios in Melbourne, Australia. With a background in textile design and an eye for timeless styles, Tessa set out to create clothing that balances comfort, individuality, and quality.

Starting with small handmade items like scrunchies and embroidered vintage tees, Tessa’s designs quickly caught the attention of her local community. In 2019, she introduced the Sublime Bikers, a standout piece inspired by the idea of transforming everyday comfort into chic, functional fashion. The bikers became a defining item for the brand. Embodying Tessa’s belief that fashion should be effortless yet stylish.

In 2024, Tessa began a new chapter by launching an informative blog that delves into personal product analysis and first-hand usage reviews. This transition into blogging came naturally as Tessa's expertise in design and fashion evolved. Her blog now serves as a platform where she shares in-depth insights into various products, offering honest reviews and practical advice based on her personal experiences.