1978 Mazda RX-3 Engine Cooling Hoses
Keep Your 1978 Mazda RX-3 in Top Shape with a Quality Engine Cooling Hose
When it comes to maintaining or upgrading your 1978 Mazda RX-3, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Engine Cooling Hose for your RX-3. We currently carry a top Engine Cooling Hose in stock that is built to last. Whether you’re replacing a damaged Engine Cooling Hose or looking to upgrade, our selection for the 1978 Mazda RX-3 ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.
Explore Related Parts
And while you’re here, don’t forget to check out related part categories like Oil Cooler Hoses and Serpentine and V Belts to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 1978 Mazda RX-3 running smoothly and looking great.
Find Your Specific 1978 Mazda RX-3 Engine Cooling Hoses
Looking for the perfect Engine Cooling Hose for your 1978 Mazda RX-3? You’re in the right place. Below, you’ll find a Engine Cooling Hose from a trusted manufacturer that is a perfect fit for your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Cooling Hoses, ensuring durability and a precise fit for your Mazda RX-3. Whether you’re driving a 1978 model or another popular model year like
1972,
1973,
1974,
1975,
1976, and
1977, we’ve got you covered. Purchasing Engine Cooling Hoses from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Engine Cooling Hoses that fit your vehicle.
Essential 1978 Mazda RX-3 Engine Cooling Hoses
Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 13" Long, 1.50" Diameter (Part No.B71011)
from
$26.99
The Dayco curved radiator hose features knitted reinforcement, a protective sleeve and a synthetic EPDM rubber construction for high-strength performance, protection against abrasion and resistance to oil, mud, salt, road debris, ozone and coolants. It can also withstand temperature variations of -40 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C). The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose.
Product Features:
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Product Features:
- Meets SAE J20R4, Class D-1 requirements
- Meets Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
- Provides excellent protection against external elements
Gates – Vulco-Flex II Flexible Coolant Hose (Part No.25526)
from
$25.49
Gates Vulco-Flex(R) II hose will bend in almost any direction. It easily replicates the angles and planes of a wide variety of expensive original equipment coolant hose, for quick, easy replacement.
Product Features:
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Product Features:
- Improved sealing surface for improved leak resistance
- Their great flexibility makes installation easy
- Maximum vehicle coverage with minimum inventory
- Resistant to heat, oil and ozone
- Rated for SAE 20R5 Class D-2 performance
- Temperature range: up to +257 degrees Celsius. F (+125 Deg. C)
- Note: Gates recommends replacing clamps each time a new coolant hose is installed
- Warning: Do not use for fuel or oil transfer applications
Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 9.75" Long, 1.50" Diameter (Part No.B70281)
from
$19.99
The Dayco curved radiator hose features knitted reinforcement, a protective sleeve and a synthetic EPDM rubber construction for high-strength performance, protection against abrasion and resistance to oil, mud, salt, road debris, ozone and coolants. It can also withstand temperature variations of -40 Deg. F (-40 Deg. C) to +257 Deg. F (+125 Deg. C). The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose.
Product Features:
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Product Features:
- Meets SAE J20R4, Class D-1 requirements
- Meets Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
- Provides excellent protection against external elements
Dayco – Flex Radiator Hoses; EPDM Rubber, 9 Inch Long, 1.5 Inch Inner Dia. (Part No.81121)
from
$15.29
The Dayco flex radiator hose replaces straight or molded radiator hoses on a wide range of engine applications. Precision molded in standard lengths, it features a knitted reinforcement and synthetic EPDM construction. This hose is designed to prevent splitting, ballooning and elongation as well as resist ozone and other detrimental environmental elements, coolants and temperature variations of -40øF (-40øC) to +257øF (+125øC). With corrugations that provide excellent hose flexibility without flattening or collapsing, the Dayco flex radiator hose also features a helical steel coil spring for increased flexibility.
Product Features:
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Product Features:
- Designed to meet OE specifications
- Not suitable for oil or heat transfer
- Meets SAE J20R4, Class D-2 requirements for improved service hoses
- This hose is designed to prevent splitting, ballooning, and elongation
Gates – Premium Molded Coolant Hose (Part No.20386)
from
$41.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.
Product Features:
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Product Features:
- Specifically designed materials resist collapse under vacuum
- Designed to resist electrochemical degradation, which is the leading cause of hose failure
- Pre-shaped to fit and to ensure perfectly sealed conditions
- EPDM tube; knitted synthetic fiber reinforcement; EPDM lid resistant to heat, ozone and chemical refrigerants
- Meets the requirements of SAE 20R4, Class D2 and DIN 73411, Class A (except for tolerances)
- Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
- Note: Gates recommends replacing clamps and connectors each time a new cooling hose is installed.
- Caution: Do not use for fuel or oil transfer applications
Popular 1978 Mazda RX-3 Engine Cooling Hoses Categories
Most Popular Upper Radiator Hose for 1978 Mazda RX-3s
Enhance your 1978 Mazda RX-3 with this popular Upper Radiator Hose we have in stock, for $41.99.
Gates – Premium Molded Coolant Hose (Part No.20386)
from
$41.99
Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.
Product Features:
See More
Product Features:
- Specifically designed materials resist collapse under vacuum
- Designed to resist electrochemical degradation, which is the leading cause of hose failure
- Pre-shaped to fit and to ensure perfectly sealed conditions
- EPDM tube; knitted synthetic fiber reinforcement; EPDM lid resistant to heat, ozone and chemical refrigerants
- Meets the requirements of SAE 20R4, Class D2 and DIN 73411, Class A (except for tolerances)
- Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
- Note: Gates recommends replacing clamps and connectors each time a new cooling hose is installed.
- Caution: Do not use for fuel or oil transfer applications
FAQs for 1978 Mazda RX-3 Engine Cooling Hoses
What’s the price range for 1978 Mazda RX-3 Engine Cooling Hoses?
We currently have just one Engine Cooling Hoses for the 1978 Mazda RX-3 in stock: Premium Molded Coolant Hose and it costs $41.99.
Does Advance Auto Parts sell Engine Cooling Hoses for other Mazda RX-3 model years?
Does Advance Auto Parts sell Engine Cooling Hoses for any other 1978 Mazda models?
Yes. We stock Engine Cooling Hoses for 3 other popular 1978 Mazda models. Some of the most popular are 1978 Cosmo Engine Cooling Hoses, 1978 RX-4 Engine Cooling Hoses, 1978 B1800 Engine Cooling Hoses, and 1978 GLC Engine Cooling Hoses.
What types of Engine Cooling Hoses do you sell for my 1978 Mazda RX-3?
We currently have just 1 Engine Cooling Hose in stock for a 1978 Mazda RX-3, and as of 11/2/25, it is an Upper Radiator Hose.
Can I get help with 1978 Mazda RX-3 Engine Cooling Hose orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mazda Engine Cooling Hoses and more.
What is your return policy for Mazda RX-3 Engine Cooling Hoses?
Advance Auto Parts keeps returns simple. For new Mazda RX-3 Engine Cooling Hoses and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.