1998 GMC C3500HD Heater Hoses

Gates Small I.D. Molded Coolant Hose is factory-molded, OEM style hose to fit today’s smaller, tighter-fitting engine compartments. Can be used for coolant, water and air applications. Approved for marine applications.

Product Features:

• It has all the quality characteristics of Gates molded coolant hose and is similar to OEM specifications.
• Designed to resist electrochemical degradation, the main cause of casing failure
• EPDM tube, synthetic fiber knit reinforcement, EPDM cover
• Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
• temperature range Deg. F to +275 degrees F (-40 degrees C -135 degrees C)
• Note: Gates recommends replacing the clamps and connectors each time a new radiator hose is installed.
• Caution: Do not use for fuel or oil transfer applications

This replacement HVAC heater hose assembly is engineered to match the fit and durability of the stock heater hose assembly on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:

• Ideal replacement – this HVAC heater hose assembly directly replaces the original heater hose on specified vehicle years, makes and models
• Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
• Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
• Industry-leading design – professionally engineered by the aftermarket leader in heater hose assemblies

Gates Small I.D. Molded Coolant Hose is factory-molded, OEM style hose to fit today’s smaller, tighter-fitting engine compartments. Can be used for coolant, water and air applications. Approved for marine applications.

Product Features:

• Has all the quality features of Gates molded coolant hose and similar to OEM specifications
• Engineered to resist electrochemical degradation – the leading cause of hose failure
• EPDM tube, synthetic fiber reinforcement, EPDM lid
• Compliant with SAE 20R3 Type EC Class D-1 and D-2 specifications
• temperature range Deg. F to +275 degrees F (-40 degrees C -135 degrees C)
• Note: Gates recommends replacing the clamps and connectors each time a new radiator hose is installed.
• Caution: Do not use for fuel or oil transport applications.

Premium hose constructed for long service life.

Product Features:

• Good resistance to high temperatures for long periods of time, which prolongs the service life
• Meets SAE 20R3 Standard Wall Class D-2 requirements
• Temperature range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
• Caution: Do not use for fuel or oil transfer applications
• PLEASE NOTE: Item is priced and sold by the foot. See store for details.

Gates Small I.D. Molded Coolant Hose is factory-molded, OEM style hose to fit today’s smaller, tighter-fitting engine compartments. Can be used for coolant, water and air applications. Approved for marine applications.

Product Features:

• Possesses all the quality characteristics of Gates molded cooling tubing and is similar to original manufacturer specifications.
• Designed to resist electrochemical degradation, the main cause of casing failure
• EPDM tube, synthetic fiber reinforcement, EPDM cover
• Compliant with SAE 20R3 Type EC Class D-1 and D-2 specifications
• temperature range Deg. F to +275 degrees F (-40 degrees C -135 degrees C)
• Note: Gates recommends replacing the clamps and connectors each time a new radiator hose is installed.
• Caution: Do not use for fuel or oil transport applications.

Specifically designed to carry the heated coolant from the engine block to the heater core under the dashboard and return it to the engine, this Dayco Standard Heater Hose is constructed using all EPDM compounds and spiral reinforcement for high burst strength and excellent heat resistance. Made for general service on light trucks and passenger cars, this hose is similar to SAE 20R3, Class D-2 and has a temperature rating of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C). This Dayco Standard Heater Hose is compatible with all common coolant and coolant additives. Note: This hose is NOT suitable for fuel or oil transfer.

Product Features:

• Specifically designed to be compatible with all common coolants and coolant additives
• Constructed using all EPDM compounds and spiral reinforcements
• Similar to SAE 20R3, Class D-2
• Has a high burst strength and excellent heat resistance of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C)
• PLEASE NOTE: Item is sold and priced by the foot. See store for details.

Specially designed for difficult heater hose applications requiring sharp 90 degree bends in the hose. Eliminates the need for extensive inventory of OE type curved heater hose. Just 22 sizes handle thousands of applications.

Product Features:

• Resists electrochemical degradation and water permeation
• Use with heater hose connectors and bulk heater hose to create custom assemblies
• Compatible for coolant, air, and water applications
• EPDM tube and cover, synthetic fiber reinforcement
• SAE 20R3 CE Class D1, SAE 20R4 CE Class D1
• Temperature range: -40 Deg. F to +275 Deg. F (-40 Deg. C to +135 Deg. C)
• Caution: Do not use for fuel or oil transport applications.

Providing reliable service in applications requiring molded hoses in small diameters, the Dayco small I.D. 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
• The knitted polyester reinforcement provides high burst strength and resists degradation from temperature extremes and moisture

Providing reliable service in applications requiring molded hoses in small diameters, the Dayco small I.D. 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
• The knitted polyester reinforcement provides high burst strength and resists degradation from temperature extremes and moisture

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

Specifically designed to carry the heated coolant from the engine block to the heater core under the dashboard and return it to the engine, this Dayco Standard Heater Hose is constructed using all EPDM compounds and spiral reinforcement for high burst strength and excellent heat resistance. Made for general service on light trucks and passenger cars, this hose is similar to SAE 20R3, Class D-2 and has a temperature rating of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C). This Dayco Standard Heater Hose is compatible with all common coolant and coolant additives. Note: This hose is NOT suitable for fuel or oil transfer.

Product Features:

• Specifically designed to be compatible with all common coolants and coolant additives
• Constructed using all EPDM compounds and spiral reinforcements
• Similar to SAE 20R3, Class D-2
• Has a high burst strength and excellent heat resistance of -40 Degree F (-40 Degree C) to +257 Degree F (+125 Degree C)
• PLEASE NOTE: Item is sold and priced by the foot. See store for details.

Providing reliable service in applications requiring molded hoses in small diameters, the Dayco small I.D. 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
• The knitted polyester reinforcement provides high burst strength and resists degradation from temperature extremes and moisture

Providing reliable service in applications requiring molded hoses in small diameters, the Dayco small I.D. 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
• The knitted polyester reinforcement provides high burst strength and resists degradation from temperature extremes and moisture

Premium hose constructed for long service life.

Product Features:

• Good resistance to high temperatures over prolonged periods, which extends the service life.
• Meets SAE 20R3 Standard Wall Class D-2 requirements
• Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
• Caution: Do not use for fuel or oil transfer applications
• CAUTION: Do not use for fuel or oil transfer applications
• PLEASE NOTE: Item is priced and sold by the foot. See store for details.

Made of quality materials, this HVAC heater hose connector matches the fit and function of an original equipment connector to restore leak-free performance.

Product Features:

• Quality replacement – this heater hose connector matches the fit and function of the original equipment connector
• Durable construction – this heater hose connector is made of quality materials for a precise fit and leak-free durability
• Cost-effective solution – offers original equipment quality at competitive price
• Performance tested – this connector has been rigorously pressure tested to ensure reliable performance

Quick-Lok(R)Connectors provide a fast, easy way to connect replacement heater hose on cars and trucks.

Product Features:

• Used on cars and trucks when the original quick fitting is faulty or the replacement hose does not include it.
• Manufactured w/ a new design that retains the O-ring so they cannot get lost or damaged
• Fit just as the OEM quick connects for easy installation as well as removal

This HVAC heater hose retainer clip is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

• Direct replacement – this HVAC heater hose retainer clip matches the fit and function of the factory part on specified years, makes and models
• Ideal solution – this clip is a reliable replacement for an original part that is missing or has failed due to fatigue
• Durable construction – this part is made from quality materials to ensure reliable performance and long service life
• Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience