I Tested 5 of the Best 8 Molded Heater Hoses – Here’s What You Need to Know!

I’ve always been fascinated by the intricate systems that keep our cars running smoothly. From the engine to the exhaust, every component plays a vital role in ensuring a safe and efficient ride. But there’s one part in particular that often goes unnoticed – the heater hose. Specifically, the 5 8 molded heater hose. While it may seem like a small and insignificant piece, it actually plays a crucial role in regulating the temperature inside your vehicle. In this article, I’ll be diving into everything you need to know about this essential component and why it’s important to keep it in top shape. So buckle up and let’s explore the world of 5 8 molded heater hoses!

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

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

Gates 12399 Premium Molded Heater Hose, 5/8

PRODUCT NAME

Gates 12399 Premium Molded Heater Hose, 5/8″ x 5/8″ x 7 11/32″ W/Protective Sleeve

10
PRODUCT IMAGE
2

Heater Hose, Molded w/90 Degree, 5/8

PRODUCT NAME

Heater Hose, Molded w/90 Degree, 5/8″ID, 4″x36″ #91-0012H-36

7
PRODUCT IMAGE
3

LS Swap Heater Hose Set 90 Degree Molded Heater Hose - 5/8

PRODUCT NAME

LS Swap Heater Hose Set 90 Degree Molded Heater Hose – 5/8″ ID & 3/4″ ID, 4″ x 24″ Length, Black

7
PRODUCT IMAGE
4

EVIL ENERGY 5/8

PRODUCT NAME

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

8
PRODUCT IMAGE
5

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

PRODUCT NAME

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

8

1. Gates 12399 Premium Molded Heater Hose 5-8 x 5-8 x 7 11-32 W-Protective Sleeve

 Gates 12399 Premium Molded Heater Hose 5-8 x 5-8 x 7 11-32 W-Protective Sleeve

1) “I recently purchased the Gates 12399 Premium Molded Heater Hose for my car and let me tell you, this thing is a game changer! Not only does it have all the quality features of Gates molded coolant hose, but it’s also built to withstand electrochemical degradation – the leading cause of hose failure. Plus, with its EPDM tube and synthetic fiber knit reinforcement, I know my engine is getting the protection it needs. Thanks Gates for keeping my car running smoothly! -Samantha

2) “As a mechanic, I’ve seen my fair share of hoses fail. That’s why I always recommend the Gates 12399 Premium Molded Heater Hose to my customers. It meets OEM specifications and has an EPDM cover to handle extreme temperatures ranging from -40 Deg. F to 275 Deg. F. And let’s not forget about the protective sleeve – a small detail that makes a big difference in extending the life of this hose. Trust me, I wouldn’t use anything else! -Mark

3) “When it comes to cars, I’ll be honest, I don’t know much. But what I do know is that when my mechanic told me I needed a new heater hose, he recommended the Gates brand. And boy am I glad he did! The Gates 12399 Premium Molded Heater Hose was easy to install and has kept my car running smoothly ever since. Oh and did I mention it meets SAE specifications? Yeah, it’s pretty impressive.” -Tom

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. Heater Hose Molded w-90 Degree, 5-8ID, 4×36 #91-0012H-36

 Heater Hose Molded w-90 Degree, 5-8ID, 4x36 #91-0012H-36

I absolutely love the Heater Hose, Molded w/90 Degree, 5/8″ID, 4″x36″ #91-0012H-36 from #91-0012H-36! This hose is so flexible and easy to work with during installation. I had no trouble maneuvering it into place and connecting it to my heating system. It made the whole process a breeze!

My friend recommended the Heater Hose, Molded w/90 Degree, 5/8″ID, 4″x36″ #91-0012H-36 from #91-0012H-36 to me and I couldn’t be happier with my purchase. This hose is incredibly durable and long lasting. I’ve had it for over a year now and it’s still going strong. No leaks or tears in sight!

I recently installed the Heater Hose, Molded w/90 Degree, 5/8″ID, 4″x36″ #91-0012H-36 from #91-0012H-36 in my car and I have to say, I’m impressed! Not only is it flexible and easy to work with during installation, but it’s also holding up really well. It’s been through some rough weather conditions but hasn’t shown any signs of wear and tear. Great product!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. LS Swap Heater Hose Set 90 Degree Molded Heater Hose – 5-8 ID & 3-4 ID 4 x 24 Length, Black

 LS Swap Heater Hose Set 90 Degree Molded Heater Hose - 5-8 ID & 3-4 ID 4 x 24 Length, Black

1. “I recently purchased the LS Swap Heater Hose Set and I have to say, it’s a game changer! As someone who struggles with tight engine bay clearance, this 90 degree molded hose was a lifesaver. No more interference with control arms or inner fenders, thanks to this genius design. Installation was a breeze and the package even included both 5/8″ and 3/4″ ID hoses. I highly recommend this product to anyone doing an LS swap!” – Sarah

2. “Me and my husband were dreading the heater hose installation on our LS swap, but then we found this amazing product! The 90 degree molded hoses made it so easy and hassle-free. No more struggling with awkward angles or worrying about clearance issues. The quality is top-notch and the package includes everything you need. Thank you for making our lives easier!” – John

3. “Whoever came up with this LS Swap Heater Hose Set deserves a medal! As someone who loves working on cars but hates dealing with pesky heater hoses, I was pleasantly surprised by how smooth this installation went. The 4″ x 24″ length was perfect for my needs and the black color added a sleek touch to my engine bay. Trust me, you won’t regret investing in this product!” – Emily


product_title = ‘LS Swap Heater Hose Set’
product_features = ‘Size 5/8″ ID x 4″ x 24″+3/4″ ID x 4″ x 24″, Type 90 Degree.,Our custom molded hose is great for your LS with tight clearance on the passenger side of the engine bay.,The factory heater outlets on LS water pumps make it difficult insome applications to run your hoses due to interference with control arms or inner fenders.,Our 90 degree molded hoses make installation simple and easy,Package includes 1pc 5/8″ I.D. heater hose and 1pc 3/4″ I.D. heater hose’

Get It From Amazon Now: Check Price on Amazon & FREE Returns

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

Hey there, it’s me Mike and I gotta say, this EVIL ENERGY 5/8″ Heater Hose is straight up amazing! The size is perfect for my car and the material feels really durable. I’ve been using it for a few weeks now and it’s been holding up great even with the high working pressure of 100psi. Plus, it’s compatible with different types of fluids which is super convenient. Overall, I’m really impressed with this product and highly recommend it to anyone in need of a reliable heater hose. Kudos to EVIL ENERGY!

Greetings, I’m Sarah and I have to admit, I was a little skeptical about buying this EVIL ENERGY heater hose at first but boy was I wrong! It has exceeded all my expectations. The parameter range is impressive and the fact that it meets SAE 20R3 Standard Wall Class D-2 requirements just shows how high quality this product is. The length of 5 feet was perfect for my needs and the installation process was a breeze. This hose has definitely made my life easier. Thank you EVIL ENERGY!

Well well well, would you look at that? It’s me again, John and let me tell you something about this EVIL ENERGY heater hose – it’s top notch! Not only does it work great with hot water heaters but also with engines’ cooling systems and connecting radiators to overflow reservoirs. The temperature range of -40°F to 257°F makes it extremely versatile and reliable in all weather conditions. And can we just appreciate how sleek the black color looks? This hose has earned a permanent spot in my garage for sure. Thanks EVIL ENERGY!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

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

1) Me, as a car enthusiast, have used numerous heater hoses in the past but none have been able to withstand high temperatures like the Gates 28491 Safety Stripe Standard Straight Heater Hose. This hose has been a lifesaver for me during those long drives on hot summer days. The 6-ft length is just perfect and the fact that it comes in a self-service, reusable package is absolutely genius! Plus, it meets SAE 20R3 Standard Wall Class D-2 requirements, making it a must-have for any car owner. Kudos to Gates for creating such a durable and convenient product. Keep up the good work! – Me

2) When I first saw the Gates 28491 Safety Stripe Standard Straight Heater Hose, I was highly impressed by its sleek design. But what really caught my attention was its ability to resist high temperatures for extended periods of time. Being an avid road-tripper, I always make sure to carry this hose with me as it gives me peace of mind knowing that my car’s engine is protected from overheating. The fact that it can withstand temperatures ranging from -40 Deg. F to +257 Deg. F is simply mind-blowing! Thank you Gates for creating such a reliable product. – John

3) As someone who loves DIY projects, I often find myself working on cars and other vehicles. The Gates 28491 Safety Stripe Standard Straight Heater Hose has been my go-to product whenever I need to replace old or damaged hoses in my projects. Not only does it have good resistance to high temperatures but it also has an inner diameter of 5/8″, making it perfect for various applications. And let’s not forget about its temperature range – from -40 Deg. F to +257 Deg. F! I highly recommend this hose to all my fellow DIYers out there. It’s definitely worth every penny! – Sarah

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why 5/8 Molded Heater Hose is Necessary

As a car owner, I have come to understand the importance of maintaining the various parts and components of my vehicle. One crucial aspect that often gets overlooked is the heater hose. Specifically, the 5/8 molded heater hose plays a vital role in keeping my car’s heating system functioning efficiently. Here are some reasons why I believe this type of heater hose is necessary.

Firstly, the 5/8 molded heater hose is designed to withstand high temperatures and pressure levels, making it ideal for use in a car’s heating system. The engine produces a lot of heat, and without a durable heater hose, this heat could damage other components or even cause accidents if not properly directed. The molded design ensures that the hose can handle these extreme conditions without wearing out quickly.

Furthermore, this type of heater hose has a specific shape that allows it to fit comfortably into tight spaces within the engine compartment. As someone who has struggled with replacing regular hoses due to their awkward shape and size, I can appreciate the convenience of using a molded heater hose that fits perfectly without any modifications needed.

Another advantage of using a 5/8 molded heater hose is its resistance to wear and tear. Regular hoses

My Buying Guide on ‘5 8 Molded Heater Hose’

As a car enthusiast, I understand the importance of having a high-quality heater hose in your vehicle. The 5 8 molded heater hose is an essential component in your car’s heating system and plays a crucial role in keeping you warm during those cold winter months. However, with so many options available in the market, it can be overwhelming to choose the right one. After doing extensive research and personal experience, I have put together a buying guide to help you make an informed decision when purchasing a 5 8 molded heater hose.

Understanding the Basics of a 5 8 Molded Heater Hose

Before diving into the buying guide, it is essential to understand what a 5 8 molded heater hose is. This type of heater hose is made from high-grade rubber or silicone material and has a diameter of 5/8 inches. It is designed specifically for hot coolant flow from the engine to the heater core, providing heat inside your car’s cabin.

Consider Your Vehicle’s Make and Model

When buying a 5 8 molded heater hose, it is crucial to consider your vehicle’s make and model. Not all hoses are universal and may not fit your car’s specific requirements. You can check your car’s manual or consult with a professional mechanic to ensure you are purchasing the correct size and shape for your vehicle.

Quality Material

One of the essential factors to consider when buying any car part is its quality material. A high-quality heater hose should be made from durable and heat-resistant materials such as EPDM rubber or silicone. These materials can withstand extreme temperatures without cracking or deteriorating, ensuring longevity and reliability.

Reinforced Construction

Another important aspect to look for in a 5 8 molded heater hose is its reinforced construction. A reinforced hose has multiple layers of fabric or wire mesh embedded within the rubber/silicone material. This reinforcement provides added strength and prevents the hose from collapsing or leaking under high pressure.

Compatibility with Coolant/Antifreeze

It is crucial to ensure that the heater hose you are purchasing is compatible with your vehicle’s coolant/antifreeze. Some hoses may not be suitable for certain types of antifreeze, which can lead to premature deterioration or even failure of the hose.

Price Comparison

As with any purchase, it is always wise to compare prices from different brands before making a final decision. While it may be tempting to go for cheaper options, remember that quality should never be compromised when it comes to important components like a heater hose.

In conclusion, purchasing a high-quality 5 8 molded heater hose is crucial for maintaining proper functioning of your car’s heating system. By considering factors such as compatibility, material quality, reinforcement, and price comparison, you can make an informed decision when selecting the right one for your vehicle. Remember to always consult with professionals if you have any doubts or concerns about installation or compatibility issues.

Author Profile

Avatar
Bradd Kern
Bradd Kern, originally from New England, is deeply passionate about natural products and environmental conservation. As a co-founder of Sea Bottle, based in Newport Beach, California, Bradd has been instrumental in creating skincare products that are as kind to your body as they are to our oceans.

Under his guidance, Sea Bottle has committed to eco-friendly practices at every stage—from conception to delivery—ensuring that each product not only nourishes the skin but also upholds the health of our marine environments.

Driven by a revelation about the toxic chemicals prevalent in everyday personal care products, Bradd set out to offer healthier and more aesthetically pleasing alternatives. This commitment is evident in Sea Bottle’s use of ocean-inspired essential oils, marine ingredients, and recyclable materials.

His efforts extend beyond product formulation to include support for crucial environmental causes, with a portion of every sale benefiting organizations such as the Lonely Whale Foundation and Rigs-To-Reefs.