Name: Coolant Connector - Inlet/Outlet 3/4In. Tube x 5/8In. Hose
Brand: Dorman
SKU: 800-409HP
Price: 24.49 USD

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$24.49

HVAC heater hose connectors fail when the plastic material fatigues from heat and vibration. This upgraded Dorman OE FIX replacement connector is made from corrosion-resistant stainless steel for greater durability.

Product Features:

Improved design – this HVAC heater hose connector has been redesigned for greater durability the original equipment part
Durable construction – this heater hose connector is made of stainless steel instead of the original equipment connector to reduce damage from heat fatigue and vibration
Easy to install – matches the original equipment form and dimensions for a simple replacement
Quality tested – this part has undergone try-on, corrosion, heat and pressure testing to ensure a quality fit and long service life

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$11.29

Proper crankcase ventilation is key to smooth performance and engine longevity. Made from quality materials to resist cracking and brittleness, this PCV hose replaces a worn or leaking original equipment hose.

Product Features:

Ideal replacement – this PCV tubing replaces the original tubing on specified vehicle years, makes and models
Durable materials – this PCV tubing is designed to withstand exposure to extreme temperatures and oil vapors to resist cracking and leaking
Cost-effective solution – offers original equipment quality at a competitive price
Quality tested – this part has undergone try-on and material testing to ensure a quality fit and long service life

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$50.39

Built for passenger cars and light-duty trucks, Dayco’s extensive line of Poly Rib serpentine belts are engineered for high mileage, demanding drives found in today’s vehicles. As the manufacturer of the first original equipment multi-ribbed serpentine belt, Dayco’s commitment to automotive product excellence and innovation is unwavering. The Dayco Poly Rib W Profile serpentine belt is the most innovative advancement in serpentine belt design in more than 30 years. Developed through extensive laboratory and actual road mileage testing, this unique rib profile EPDM belt has been engineered to conform to high mileage, worn or misaligned drives and help eliminate noisy belt conditions. Constructed with aramid-reinforced EPDM compounds, the Dayco W Poly Rib serpentine belt delivers more than just OE-required quality. It delivers the solution to troublesome drive problems.

Product Features:

Constructed with aramid-reinforced EPDM compounds
Engineered to conform to high mileage, worn or misaligned drives
Helps eliminate noisy belt conditions Related Documents: (PDF 63.78 KB)

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$75.99

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

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$37.04

AT Cooling Pipe

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$101.99

This accessory drive tensioner is designed and engineered by Litens – the world’s largest supplier of original equipment (O.E.) belt tensioners in the world. This part was designed for the 2014-2019 Chevrolet Silverado / GMC Sierra,Yukon/Cadillac Escalade with 4.3/5.3/6.2L. The Litens replacement part meets all form, fit, and performance characteristics of the original equipment part. This part is manufactured to meet or exceed the performance and life specifications of the O.E. part. The part features a premium chrome-silicon steel spring, internal damping, a lift-lug feature for ease of installation, heavy duty steel pulley with a 6203 close tolerance ball bearings pocket for rugged durability and Electro-deposited coating for superior corrosion resistance. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:

Designed and engineered by the world’s largest Original Equipment supplier of accessory drive tensioners and pulleys.
Internal “round spring” technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
Heavy duty steel pulley with a 6203 close tolerance ball bearings pocket for rugged durability and Electro-deposited coating for superior corrosion resistance
Due to the fact that belts and tensioners have similar Original Equipment “design life targets”, it is often a best practice to replace the belt tensioner when replacing a worn or broken belt. Belt removal is required to change the tensioner. Therefore, d
Installation instructions included

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$40.99

The Driveworks belt is designed to provide better belt-to-pulley contact. The specialized rubber compound incorporates a high temperature polymer formulated to maximize load carrying requirements and belt life. This Driveworks ribbed belt has been constructed and engineered to meet the stringent demands of today’s automotive drive systems. The Driveworks ribbed belt delivers long-lasting dependable belt life.

Product Features:

Constructed with heat and ozone resistant EPDM rubber
Fiber is added to the rib stock to reinforce the rubber and reduce noise from worn and misaligned pulleys
Made with treated polyester cord to reduce belt stretch

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$30.49

This windshield washer hose is designed to match the fit and function of the original hose on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this windshield washer hose is designed to match the fit and function of the original hose on specified vehicles
Restores functionality – reliable replacement for an original hose that 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

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$29.99

Fixing a failed original plastic coolant hose connector usually requires replacing the entire coolant hose assembly. This Dorman OE FIX coolant hose connector is made from aluminum for greater durability and saves expense by allowing the replacement of just the failed connector..

Product Features:

Saves money – directly replace a failed coolant hose connector rather than buying an entire new hose assembly from the original automaker.
Improved design – made of durable aluminum instead of plastic to better resist temperature fluctuations and help prevent future failures
Ensures fit – includes hose clamps for a complete repair and perfect fit on specified makes, models and years
Quality assured – backed by a team of product experts in the United States and more than a century of automotive experience

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$57.99

Pinion and axle seal puller. No return.

Product Features:

Seal puller

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$0.99

Premium hose constructed for long service life.

Product Features:

Good resistance to high temperatures for extended periods of time, which prolongs 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.

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$99.99

This Litens Serpentine Belt Drive Component Kit fits 1999-2002 Chev Avalanche, Silverado, Suburban, Tahoe / GMC Sierra, Yukon w/4.8/5.3/6.0L. These kits make it easy to maintain your entire front end accessory drive system. Eliminate the need to search for individual parts by purchasing this all-in-one solution. Front end accessory drives require maintenance at specific intervals, and parts should be replaced as part of your regularly scheduled tune-up to ensure your vehicle is at its best. Each kit contains a Litens belt tensioner, Bando serpentine belt, and any necessary idler pulley(s). All required hardware is included for the installation . Application specific instructions are also conveniently included. All parts meet or exceed OE fit, function, and performance. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.

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$33.49

This Litens pulley is supplied by one of the largest original equipment suppliers in the world and meets all form, fit, and performance characteristics of the original equipment part . Like the Original Equipment pulley, the Litens replacement part is constructed of heavy duty steel for long life and trouble free performance. This unique pulley is designed for use on G.M. Air Conditioning tensioners. Litens recommends you consider replacing the entire tensioner (Litens P/N 999034) rather than just the tensioner pulley. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:

Manufactured by the world’s largest Original Equipment supplier of accessory drive tensioners and pulleys
Heavy Duty Steel Pulley
Precision steel stamping with close tolerance ball bearing pocket.
Electro-deposited coating (e-coat) for superior corrosion resistance.
Running surface designed and engineered for proper belt tracking.

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$55.99

Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

Product Features:

Specifically-engineered materials resist collapse under vacuum
Engineered to resist electrochemical degradation, the leading cause of hose failure
Pre-shaped to fit and to ensure perfectly sealed conditions
EPDM tube: synthetic fiber knit reinforcement: heat-, ozone- and chemical coolant-resistant EPDM cover
Meets 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 hose clamps each time a new coolant hose is installed
Caution: Do not use for fuel or oil transfer applications

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$358.99

This replacement fuel line is made to safely transfer fuel and endure in tough underhood and undercar conditions.

Product Features:

Ready to install – these braided stainless steel and PTFE flexible fuel lines are already cut to specific length for crew cab GMC Sierra and Chevy Silverado pickups, with all brackets and connectors
Full length – these lines are made to the correct length for the specified vehicle, but flexible so they’re easier to route than rigid lines, saving replacement time
Upgraded materials – high-strength, corrosion-resistant braided stainless steel protects PTFE hoses for reliable longevity under all conditions
Trustworthy quality – engineered and assembled in the United States and backed by decades of aftermarket experience

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$495.99

This replacement fuel line is made to safely transfer fuel and endure in tough underhood and undercar conditions.

Product Features:

Ready to install – these braided stainless steel and PTFE flexible fuel lines are already cut to specific length for standard cab GMC Sierra and Chevy Silverado pickups, with all brackets and connectors
Full length – these lines are made to the correct length for the specified vehicle, but flexible so they’re easier to route than rigid lines, saving replacement time
Upgraded materials – high-strength, corrosion-resistant braided stainless steel protects PTFE hoses for reliable longevity under all conditions
Trustworthy quality – engineered and assembled in the United States and backed by decades of aftermarket experience

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$60.99

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

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$65.99

Product Features:

Specifically-engineered materials resist collapse under vacuum
Engineered to resist electrochemical degradation + the leading cause of hose failure
EPDM tube; synthetic fiber knit reinforcement, heat-, ozone- and chemical coolant-resistant EPDM cover
Manufactured with OEM-exact hose components (quick connects, branch connectors/tees, sensors, etc.)
Meets SAE 20R3 EC Class D1 under 25mm (1 in.) ID, SAE 20R4 EC Class D1 for 25mm (1 in.) ID and over
Temperature Range: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)
Note: Gates recommends replacing clamps each time a new coolant hose is installed
Caution: Do not use for fuel or oil transfer applications

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$39.99

Fuel filler neck leaking? This replacement fuel filler neck hose is engineered and thoroughly tested to match the original filler neck for specific vehicle years, makes and models for a reliable repair.

Product Features:

Direct replacement – this fuel filler neck hose is made to match the original equipment part on specific vehicles
Durable construction – made of fuel-resistant materials to reduce future failure potential
Regulatory compliant – built to meet emission and inspection standards
Trustworthy value – backed by team of engineers and quality control experts in the United States

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$35.99

Fuel filler neck leaking? This replacement fuel filler neck hose is engineered and thoroughly tested to match the original filler neck for specific vehicle years, makes and models for a reliable repair..

Product Features:

Direct replacement – this fuel filler neck hose is made to match the original equipment part on specific vehicles.
Durable construction – made of fuel-resistant materials to reduce future failure potential
Regulatory compliant – built to meet emission and inspection standards
Trustworthy value – backed by team of engineers and quality control experts in the United States

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$28.99

Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

Product Features:

Specifically-engineered materials resist collapse under vacuum
Engineered to resist electrochemical degradation, the leading cause of hose failure
Pre-shaped to fit and to ensure perfectly sealed conditions
EPDM tube: synthetic fiber knit reinforcement: heat-, ozone- and chemical coolant-resistant EPDM cover
Meets 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 hose clamps each time a new coolant hose is installed
Caution: Do not use for fuel or oil transfer applications

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$62.53

Durably engineered to resist corrosion and leakage, Dorman’s HVAC Heater Hose limits the possibility of overheating and subsequent engine damage. Put your engine worries to rest by preserving proper coolant circulation.

Product Features:

Comes with clamps and fittings (where applicable)
Tough rubber and steel construction
Front and rear heating and cooling lines available (where applicable)
Rigorous quality control measures have been undertaken to ensure that this part conforms to product standards

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$68.23

Heater Hose

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$28.99

This pulley is manufactured by Litens Automotive the inventor of the first automatic belt tensioner in 1979 and today the world’s largest supplier of Original Equipment (O.E.) belt tensioning and routing products. This pulley is produced for serpentine belt routing applications and as the pulley component on automatic tensioner applications. This pulley conforms to original equipment material, tolerances, and specifications. The part is made in Canada using the O.E. specified design and meets all performance and durability requirements. Heavy duty thermoplastic construction for long life and trouble-free performance. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:

Manufactured by Litens, the largest original equipment tensioner and pulley supplier in the world, to ensure proper form, fit, and performance
Heavy Duty Glass Reinforced Polymer Pulley for optimized dimensional control and running surface durability
OE-spec sealed ball bearings with synthetic grease and double lip seals for long life

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$32.99

Product Features:

Steel and thermoplastic construction designed to tight manufacturing tolerances for high durability and quality performance
Built to last with a superior resistance to dirt, salt, chemicals and other under-hood contaminants
OE-quality fit for virtually every domestic or import vehicle on the road today
Bearings meet or exceed OE standards with application-specific speed and load requirements, to withstand high under hood temperatures
Premium bearings eliminate bearing noise
Mounting hardware included for some popular applications
Reliable operation under severe conditions

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$109.99

GM Genuine Parts Engine Oil Cooler Hose Assembly are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). Product contains Perfluorooctanoic acid (PFOA): Not for import into European Union (EU)

Product Features:

Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$79.99

Metal line kit for engine oil coolers. Routes oil lines past exhaust manifolds.

Product Features:

Metal line kit
For use in engine oil cooler applications
Routes oil lines past exhaust manifolds
Provides protection where standard hoses can fail

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$70.99

This engine oil cooler hose assembly matches the fit and function of the original equipment components for reliable repair and restoration of proper oil circulation between the oil cooler and engine.

Product Features:

Ideal replacement – this engine oil cooler hose assembly is a direct replacement for the original hose assembly
Quality materials – this engine oil cooler hose assembly is made from corrosion-resistant materials to ensure the smooth transfer of oil from the engine to the cooler
Easy to install – no special tools required
Quality tested – rigorous quality control ensure this hose assembly conforms to product standards

2003 GMC Sierra 1500 Belts and Hoses

More 2003 GMC Sierra 1500 Belts and Hoses Categories

Essential 2003 GMC Sierra 1500 Belts and Hoses

Dorman – Coolant Connector – Inlet/Outlet 3/4In. Tube x 5/8In. Hose (Part No.800-409HP)

Dorman – Help – PCV Elbow (Part No.46024)

Dayco – Poly Rib Serpentine Belt (Part No.W100050252DAY)

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 20" Long, 1.50" Diameter (Part No.E71988)

ACDelco – AT Cooling Pipe (Part No.J2002576936ACD)

Litens – Serpentine Belt Tensioner: 1 Piece (Part No.999545A)

Driveworks – Poly Rib Belt Serpentine Belt; 95.08 Long, 6 Rib Count (Part No.950K6)

Dorman – Windshield Washer Hose (Part No.924-251)

Dorman – Help – Coolant Hose Junction (Part No.47157)

Yukon Gear – Seal Puller Tool (Part No.56063)

Gates – Straight Heater Hose: EPDM, Direct Fit, 0.25" Inside Diameter (Sold by foot) (Part No.28407)

Litens – Serpentine Belt Tensioner Kit: Includes Belt, Tensioner, and any applicable Idler Pulleys (Part No.LV999033C)

Litens – O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 60 mm Diameter (Part No.900367A)

Gates – Premium Molded Coolant Hose (Part No.23184)

Dorman – OE Fix Stainless Steel Fuel Line Kit: 9.5 mm ID, 119"; 109" Long (Part No.819-876)

Dorman – OE Fix SS Fuel Line Kit: 3/8"; 3/8"; 5/16"; 5/16" ID, 24"; 93.5"; 113"; 76" L (Part No.819-840)

Dayco – Molded Heater Hose; EPDM Rubber, 23/32 Inch Diameter, 12 Inch Length (Part No.88412)

Gates – Premium Modular Coolant Hose (Part No.23385)

Dorman – Fuel Filler Neck Hose (Part No.573-076)

Dorman – Fuel Filler Neck Hose (Part No.573-162)

Gates – Premium Molded Coolant Hose (Part No.22436)

Dorman – Heater Hose Assembly (Part No.R3030359108DOR)

ACDelco – Heater Hose (Part No.R3030578543ACD)

Litens – O.E Quality Idler/Tensioner Pulley Direct Fit, Thermoplastic, 76 mm Diameter (Part No.900027A)

Gates – DriveAlign½ Belt Drive Idler/Tensioner Pulley (Part No.38001)

GM Genuine Parts – Engine Oil Cooler Hose Kit with Bracket, Gasket, and Bolt (Part No.20828695)

Imperial – Metal Line Kit for Engine Oil Coolers (Part No.240293)

Dorman – Engine Oil Cooler Line (Part No.625-514)

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2003 GMC Sierra 1500 Belts and Hoses

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