2003 Cadillac DeVille Belts and Hoses

Essential 2003 Cadillac DeVille Belts and Hoses

Gates – Premium Molded Heater Hose (Part No.18250)

Premium Molded Heater Hose

from

$10.49
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 knit reinforcement, EPDM cover
  • Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
  • Temperature Range: -40 Deg. F to 275 Deg. F (-40 Deg. C -135 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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Dayco – Molded Heater Hose; EPDM Rubber, 3/4 Inch Diameter, 16 Inch Length (Part No.88358)

Molded Heater Hose; EPDM Rubber, 3/4 Inch Diameter, 16 Inch Length

from

$25.99
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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Dorman – PCV Valve Tubing (Part No.B20431094842DOR)

PCV Valve Tubing

from

$15.32
PCV Valve Tubing

Dorman – Help – PCV Valve Tube (Part No.46052)

PCV Valve Tube

from

$14.99
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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Gates – Vulco-Flex½ II Flexible Coolant Hose (Part No.25265)

Vulco-Flex½ II Flexible Coolant Hose

from

$70.99
Product Features:
  • Improved sealing surface for greater leak resistance
  • High flexibility for easy installation
  • 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 Deg. F (+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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Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 20.50" Long, 1.50" Diameter (Part No.E70865)

Curved Radiator Hoses: EPDM Rubber, Standard Duty, 20.50" Long, 1.50" Diameter

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$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
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Litens – Serpentine Belt Tensioner: 1 Piece (Part No.999045A)

Serpentine Belt Tensioner: 1 Piece

from

$69.99
Litens was the Original Equipment (O.E.) supplier of this part and offers this upgraded part for the aftermarket. The Litens product meets or exceeds all original equipment form, fit, and function specifications for this General Motors tensioner. The tensioner offered maintains the lift feature to assist in belt removal and replacement as well as a heavy duty steel pulley. Caution: Many Non-O.E. aftermarket suppliers have removed the internal damping components and incorporated a plastic pulley for this application. Choosing The Correct Replacement Part: The Litens aftermarket tensioner use a round spring versus a flat spring and is marked “Made in Canada”. 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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Dayco – Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts (Part No.89266)

Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts

from

$67.99
The Dayco automatic belt tensioner features Dayco’s original, patented flat spring design to provide less operating range variation. It reduces the risk of premature accessory bearing failure due to high tension and lessens the risk of belt noise and slip

Product Features:
  • Endures the toughest conditions while promoting quieter performance and longer life
  • Features a steel pivot tube on specific designs for enhanced stability
  • Built to outperform and outlast competitive OE parts
  • This tensioner is another Dayco product proudly made in the USA
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Dorman – Coolant Connector – Inlet/Outlet 3/4In. Tube x 5/8In. Hose (Part No.800-409HP)

Coolant Connector - Inlet/Outlet 3/4In. Tube x 5/8In. Hose

from

$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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Dorman – Coolant Connector (Part No.800-431)

Coolant Connector

from

$24.49
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
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Gates – Premium Molded Heater Hose (Part No.19605)

Premium Molded Heater Hose

from

$21.49
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 knit reinforcement, EPDM cover
  • Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
  • Temperature Range: -40 Deg. F to 275 Deg. F (-40 Deg. C -135 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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Gates – Safety Stripe« Standard Straight Heater Hose (Part No.28409)

Safety Stripe« Standard Straight Heater Hose

from

$2.49
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
  • PLEASE NOTE: Item is priced and sold by the foot. See store for details.
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Imperial – 1/2" x 12′ Engine Oil Cooler Hose (Part No.240112)

1/2" x 12' Engine Oil Cooler Hose

from

$48.49
1/2″ x 12′ engine oil cooler hose. Imperial engine hose is specifically designed for engine cooling applications.

Product Features:
  • Engine oil cooler hose
  • Size: 1/2″ x 12′
  • Designed for engine oil applications
  • 12′ hose length accommodates most applications
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Imperial – Metal Line Kit for Engine Oil Coolers (Part No.240293)

Metal Line Kit for Engine Oil Coolers

from

$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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Dorman – Fuel Filler Neck Hose (Part No.573-025)

Fuel Filler Neck Hose

from

$41.49
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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Dorman – Fuel Filler Neck Hose (Part No.573-088)

Fuel Filler Neck Hose

from

$49.49
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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ACDelco – Professional Molded Coolant Hose (Part No.G2000583750ACD)

Professional Molded Coolant Hose

from

$22.51
ACDelco Professional, premium aftermarket Molded Coolant Hoses are composed of specially blended materials to help resist electrochemical degradation (ECD), the leading cause of hose failure. They are specially designed, GM OE style factory-molded hoses to fit today’s smaller, tighter-fitting engine compartments. ACDelco Professional Molded Coolant Hoses are temperature rated from -40 degrees Fahrenheit to 275 degrees Fahrenheit (-40 degrees Celsius to 135 degrees Celsius) and are approved for Marine applications. Do not use for fuel or oil transfer applications. These premium aftermarket replacement molded coolant hoses are manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:
  • Has a heat and ozone resistant cover to increase the life of the hose
  • Comes with a protective sleeve to help duplicate GM OE designs for proper fit and function
  • Made of re-engineered materials to resist vacuum collapse and also reduce the need for internal springs in many applications
  • Installs without buckling, bending out of shape, or straining at the connection for easy installation
  • Inside diameters ranges from 1?4 in to 1 in to fit different types of vehicles
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Dayco – Flex Radiator Hoses; EPDM Rubber, 19.5 In. Long, 1.5 In. to 1.25 In. Inner Dia. (Part No.81091)

Flex Radiator Hoses; EPDM Rubber, 19.5 In. Long, 1.5 In. to 1.25 In. Inner Dia.

from

$19.49
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 spl

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
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Gates – Micro-V« Serpentine Drive Belt (Part No.K060860)

Micro-V« Serpentine Drive Belt

from

$34.99
Import or domestic, car or truck, every vehicle can depend on the superior quality of Gates precision fit Micro-V belts. With advanced technology that matches the OE size, construction and materials, Gates Micro-V ensures optimal vehicle performance.

Product Features:
  • Special belt construction eliminates belt noise, reduces tension loss and solves problem drive applications
  • EPDM rubber constructions resist cracking on the rib surface
  • Meets or exceeds all specifications from the Original Equipment Manufacturer
  • Tensioner Replacement is Recommended (if equipped)
  • Unique form grinding of each individual belt assures precise dimensional control.
  • Meets or exceeds SAE J1459, SAE J2432, and SAE J1596 specifications.
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Driveworks – Poly Rib Belt Serpentine Belt; 81.5 Long, 6 Rib Count (Part No.815K6)

Poly Rib Belt Serpentine Belt; 81.5 Long, 6 Rib Count

from

$41.49
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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Dayco – Serpentine Idler/Tensioner Pulley; Steel, 76mm Dia., 31mm Width, Smooth (Part No.89007)

Serpentine Idler/Tensioner Pulley; Steel, 76mm Dia., 31mm Width, Smooth

from

$29.99
Dayco idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and longer belt life. In addition to stamped, forged steel and powdered metal pulleys, Dayco also designs ultra-strong pl

Product Features:
  • Designed for the majority of automotive vehicle applications on the road today
  • High-quality materials help resist wear and improve belt life
  • Features premium lubricated bearings to extend service life
  • Meets or exceeds OE quality
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Dayco – Serpentine Idler/Tensioner Pulley; Direct Fit, 90 mm Diameter, 30 mm Smooth (Part No.89006)

Serpentine Idler/Tensioner Pulley; Direct Fit, 90 mm Diameter, 30 mm Smooth

from

$30.99
Dayco idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and longer belt life. In addition to stamped, forged steel and powdered metal pulleys, Dayco also designs ultra-strong pl

Product Features:
  • Designed for the majority of automotive vehicle applications on the road today
  • High-quality materials help resist wear and improve belt life
  • Features premium lubricated bearings to extend service life
  • Meets or exceeds OE quality
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INA – Acc. Belt Tension Pu (Part No.G6011117822INA)

Acc. Belt Tension Pu

from

$84.57
Acc. Belt Tension Pu

Litens – O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 90 mm Diameter (Part No.900038A)

O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 90 mm Diameter

from

$24.99
This Litens pulley is manufactured by one of the largest original equipment pulley suppliers to ensure proper fit and performance. This pulley is produced for serpentine belt routing applications and conforms to original equipment material, tolerances, and specifications. This replacement part is made in the U.S.A. to the O.E. specified design and meets all performance and durability requirements. Heavy duty steel construction. 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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Dorman – Idler Pulley (Pulley only) (Part No.419-610)

Idler Pulley (Pulley only)

from

$12.49
This accessory drive belt tensioner pulley is designed to match the fit and function of the original pulley on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this accessory drive belt tensioner pulley is designed to match the fit and function of the original pulley on specified applications
  • Restores functionality – reliable replacement for an original pulley that has failed due to vibration or corrosion
  • 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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Dayco – Bottom Cog V-Belt; 37.5 Inch Long, Exact Fit Premium Quality (Part No.15375)

Bottom Cog V-Belt; 37.5 Inch Long, Exact Fit Premium Quality

from

$16.29
Dayco has combined raw-edge construction and a smooth top to ensure high performance on vehicles and drives that utilize V-belts. The Dayco high performance V-belt delivers more flexibility and increases airflow around the belt so it runs cooler and lasts longer. Three plies of neoprene impregnated fabric resist heat, oil and grease while a specially-formulated treatment of the polyester cord provides the strength, stability and reliability that are required for one of the most innovative, top-performing V-belts.

Product Features:
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  • Prevents electromechanical interference issues on modern vehicles
  •  Resists heat, oil and grease
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Gates – Automotive XL« High Capacity V-Belt (Part No.9605)

Automotive XL« High Capacity V-Belt

from

$34.49
Replacement belt for the most demanding engine drives. Due to thermal forces, this variable notched belt actually tightens on the drive as it gets hot. This results in improved belt performance by reducing tension decay and noise.

Product Features:
  • Fiber-loaded rubber stock adds flexibility along the length of the belt and provides greater lateral stability in the pulley
  • Form-ground to ensure precise top width and sidewall dimensional control for proper fit to the pulley
  • Thermally-active tensile cords for maintenance-free performance when properly installed and tensioned
  • Resists oil, heat, ozone, weather and aging for improved belt life
  • Meets or exceeds SAE J636C specifications
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Dayco – Bottom Cog V-Belt; 60.5 Inch Long, Exact Fit Premium Quality (Part No.17605)

Bottom Cog V-Belt; 60.5 Inch Long, Exact Fit Premium Quality

from

$22.79
Dayco’s high performance HD V-belt is one of the most innovative, top performing belts for its application. By combining raw-edge construction with a specially formulated polyester cord treatment, it offers excellent resistance to repeated flexing and protection against heat, oil and grease as well as the strength, stability and reliability required for vehicles that still need a heavy-duty V-belt.

Product Features:
  •  Designed for efficient power transmission to vehicle accessories in today’s trucks and buses
  •  Provides greater durability and flexibility – 35% stronger than all previous versions
  •  Features specially treated cords for added strength, stability and reliability
  • Made with specially formulated rubber compounds, this belt is highly resistant to extreme under hood temperatures that can cause premature damage to under engineered rubber compounds
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2003 Cadillac DeVille Belts and Hoses

You count on your 2003 Cadillac DeVille to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Belts and Hoses. With 44 Belts and Hoses ranging in price from $3.99 to $104.99, you’re sure to find everything you need for your 2003 Cadillac DeVille.

Brands matter. If you want to shop a specific Belts and Hoses brand, we stock 8 different brands like Dayco, Driveworks, and Dorman. 2003 Cadillac DeVille Belts and Hoses start as low as $3.99!

One of the best ways to find top quality OEM or aftermarket Belts and Hoses is by asking professionals. Short of that, you can shop with confidence thanks to our 2,287 extensive product reviews on 2003 Cadillac DeVille Belts and Hoses. Some of the top-rated Belts and Hoses products we carry are Poly Rib Belt Serpentine Belt; 24.25 Long, 3 Rib Count with 4.8 stars and Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts with 4.1 stars.

Did we mention you can order your Belts and Hoses from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Belts and Hoses inventory for your 2003 Cadillac DeVille below to get started!

Top-Rated Belts and Hoses Brands For Your 2003 Cadillac DeVille

Trusted Belts and Hoses OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 Cadillac DeVille running right for years to come. In our inventory you’ll find brands like Dayco, Driveworks, Dorman, and even more.

Popular Litens Belts and Hoses

You’ll find popular Litens brand products across Belt Tensioners and Pulleys. All are waiting to get your 2003 Cadillac DeVille back on the road. Some of the top-rated Litens products in these categories are:
Serpentine Belt Tensioner: 1 Piece
from $75.99
(2)
Serpentine Belt Tensioner: 1 Piece
Belt Tensioner Assemblies

Top-Rated Dayco Belts and Hoses


If Dayco are what you’re looking for, our inventory holds plenty. We stock Dayco brand Belts and Hoses for your 2003 Cadillac DeVille, and some of our most reviewed Dayco parts include:
Poly Rib Belt Serpentine Belt; 82.5 Long, 6 Rib Count
from $49.49
(136)
Poly Rib Belt Serpentine Belt; 82.5 Long, 6 Rib Count
Serpentine Belts
Poly Rib Belt Serpentine Belt; 81.5 Long, 6 Rib Count
from $53.99
(25)
Poly Rib Belt Serpentine Belt; 81.5 Long, 6 Rib Count
Serpentine Belts

FAQs for 2003 Cadillac DeVille Belts and Hoses

What are the most purchased Belts and Hoses for the 2003 Cadillac DeVille?

Out of 44 Belts and Hoses for the 2003 Cadillac DeVille, the most popular in our inventory are:
Coolant Connector - Inlet/Outlet 3/4In. Tube x 5/8In. Hose
from $12.49
(57)
Coolant Connector – Inlet/Outlet 3/4In. Tube x 5/8In. Hose
Heater Hose Fittings
Poly Rib Belt Serpentine Belt; 82.5 Long, 6 Rib Count
from $31.99
(60)
Poly Rib Belt Serpentine Belt; 82.5 Long, 6 Rib Count
Serpentine Belts
Poly Rib Belt Serpentine Belt; 81.5 Long, 6 Rib Count
from $41.49
(20)
Poly Rib Belt Serpentine Belt; 81.5 Long, 6 Rib Count
Serpentine Belts

What are the top-rated 2003 Cadillac DeVille Belts and Hoses?

Top-rated Belts and Hoses for your 2003 Cadillac DeVille based on customer reviews/ratings are:
Poly Rib Belt Serpentine Belt; 24.25 Long, 3 Rib Count
from $19.79
(12)
Poly Rib Belt Serpentine Belt; 24.25 Long, 3 Rib Count
“It is good.”
Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts
from $78.99
(11)
Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts
“Great Pulley Exact fit for my Cadillac DTS.”