1999 Infiniti Q45 Radiator Hoses

Keep Your 1999 Infiniti Q45 in Top Shape with Quality Radiator Hoses

Whether you’re repairing or upgrading your Radiator Hose, using high-quality parts is key to keeping your 1999 Infiniti Q45 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including By-Pass Hoses and Coolant Hoses. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 1999 Infiniti Q45 Radiator Hose at Advance Auto Parts is around $25.42, with a range that starts at $16.29 and goes up to $30.99. With 3 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Curved Radiator Hoses: EPDM Rubber, Standard Duty, 13" Long, 1.25" Diameter start at just $16.29 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Radiator Hose, don’t forget to check out other key components like Engine Cooling Hoses and Serpentine and V Belts. At Advance Auto Parts, we’re here to help you keep your 1999 Infiniti Q45 in peak condition, inside and out.

Essential 1999 Infiniti Q45 Radiator Hoses

Dayco – Flex Radiator Hoses; EPDM Rubber, 11 Inch Long, 1.25 Inch Inner Dia. (Part No.81031)

Flex Radiator Hoses; EPDM Rubber, 11 Inch Long, 1.25 Inch Inner Dia.

from

$30.99
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:
  • 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
See More

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 13" Long, 1.25" Diameter (Part No.C70749)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 13" Long, 1.25" Diameter

from

$16.29
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:
  • 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
See More

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 9" Long, 1.31" Diameter (Part No.B70704)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 9" Long, 1.31" Diameter

from

$28.99
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:
  • 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
See More

Dayco – Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 6 Inch Length (Part No.80400)

Molded Heater Hose; EPDM Rubber, 5/8 Inch Diameter, 6 Inch Length

from

$19.49
Providing reliable service in applications requiring molded hoses, the Dayco heater hose is designed to replace OEM coolant hoses. Made with the same bends and routing as the original assembly, this molded hose is meant to fit the vehicle precisely. The knitted reinforcement and synthetic EPDM construction provide high-strength performance and resistance to detrimental environmental elements, coolants and temperature variations of -40°F (-40°C) to +257°F (+125°C) and the “quick connect” end allows for fast, convenient installation.

Product Features:
  • Meets the requirements of SAE J20R3, Class D-1
  • Designed to meet Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
  • Engineered as an OEM replacement
  • Meets Type EC electro-chemical requirements as specified in SAE J1684
See More

Most Popular By-Pass Hose for 1999 Infiniti Q45s

Enhance your 1999 Infiniti Q45 with this popular By-Pass Hose we have in stock, for $28.99.

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 9" Long, 1.31" Diameter (Part No.B70704)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 9" Long, 1.31" Diameter

from

$28.99
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:
  • 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
See More

Best-Selling 1999 Infiniti Q45 Coolant Hoses

Upgrade your Q45 with one of our 2 best-selling Coolant Hoses, earning an average 2.5 stars rating across 3 reviews.

Dayco – Flex Radiator Hoses; EPDM Rubber, 11 Inch Long, 1.25 Inch Inner Dia. (Part No.81031)

Flex Radiator Hoses; EPDM Rubber, 11 Inch Long, 1.25 Inch Inner Dia.

from

$30.99
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:
  • 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
See More

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 13" Long, 1.25" Diameter (Part No.C70749)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 13" Long, 1.25" Diameter

from

$16.29
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:
  • 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
See More

FAQs for 1999 Infiniti Q45 Radiator Hoses

What are the best-selling Radiator Hoses for 1999 Infiniti Q45s?

Out of 3 Radiator Hoses that fit 1999 Infiniti Q45s, the following parts are the top sellers:

What’s the price range for 1999 Infiniti Q45 Radiator Hoses?

The prices of Radiator Hoses for the 1999 Infiniti Q45 range from $16.29 up to $30.99 for the most premium parts.

What is the average price of a Radiator Hose for a 1999 Infiniti Q45?

The average price for Radiator Hoses for the 1999 Infiniti Q45 is $25.42. Keep in mind the variety of part types within our Radiator Hose category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Radiator Hoses for other Infiniti Q45 model years?

Yes, we carry Radiator Hoses for 3 model years of Infiniti Q45s between 1997 and 2001. The following model years are the most popular for Radiator Hose purchases: 2001, 2000, 1998, and 1997.

What are the cheapest Radiator Hoses for my 1999 Infiniti Q45?

Does Advance Auto Parts sell Radiator Hoses for any other 1999 Infiniti models?

Yes. We stock Radiator Hoses for 2 other popular 1999 Infiniti models. Some of the most popular are 1999 I30 Radiator Hoses, 1999 G20 Radiator Hoses, and 1999 QX4 Radiator Hoses.

What are the top-rated Radiator Hoses that fit the 1999 Infiniti Q45?

Based on 13 reviews by customers, our 1999 Infiniti Q45 Radiator Hoses have an average customer rating of 3 stars. These are the highest-rated categories of Radiator Hoses for the 1999 Infiniti Q45 and their top-rated products:

What types of Radiator Hoses do you sell for my 1999 Infiniti Q45?

As of 11/2/25, these are some of the most in-demand types of Radiator Hoses for a 1999 Infiniti Q45:

Can I get help with 1999 Infiniti Q45 Radiator Hose orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Infiniti Radiator Hoses and more.

What is your return policy for Infiniti Q45 Radiator Hoses?

Advance Auto Parts keeps returns simple. For new Infiniti Q45 Radiator Hoses and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.