2018 Kia Optima Belts and Hoses

Name: Serpentine Idler/Tensioner Pulley; Steel, 65mm Dia., 31.19mm Width, Smooth
Brand: Dayco
SKU: 89815
Price: 138.99 USD

Below you will find various in-demand Kia Belts and Hoses, components and accessories for your 2018 Optima. Advance Auto Parts has popular Optima parts like Serpentine and V Belts, Belt Tensioners, Pulleys and more. You’ll also find aftermarket and OEM Belts and Hoses for other Optima model years including 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019, 2020 and more. Select a category of 2018 Kia Optima Belts and Hoses below and start saving instantly.

Popular 2018 Kia Optima Belts and Hoses Categories

Serpentine Belts

Belt Tensioner Assemblies

Idler Pulleys

Belt Tensioner Pulleys

Lower Radiator Hoses

V-Belts

Drive Belt Idler Assemblies

Essential Belts and Hoses for 2018 Kia Optimas

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$138.99

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 plastic pulleys with specially formulated glass-filled polymers that resist wear and tear. Premium lubricated ball bearings and double high temperature seals ensure peak bearing performance, the most critical element of a pulley’s service life.

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

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$61.99

This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly restoring critical vehicle operations.

Product Features:

Direct replacement – this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehicles.
Restores performance – fixes a failed, squealing or groaning noise from a worn idler pulley
Application specific – reverse engineered from the original design on certain vehicle years, makes and models
Trustworthy quality – backed by team of engineers and quality specialists in the United States

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$42.33

The Dayco Accessory Belt Idler Pulley is a direct fit OEM replacement that contains the same high quality craftsmanship as the original equipment it replaces.

Product Features:

OE-Equivalent and a direct fit application.
Precision bearing
OE High quality pulley assembly
Durable long life performance.

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$84.99

This Litens supplied pulley is manufactured by the original equipment (O.E.) manufacturer. This part is specifically designed for Hyundai / Kia applications. Heavy duty steel pulley construction ensures long life and trouble-free performance. This pulley meets or exceeds all original equipment fit, form, and performance characteristics. 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:

Heavy duty steel pulley construction
OE-spec sealed ball bearings with synthetic grease and double lip seals for long life
Installation instructions included

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$228.99

This Litens belt tensioner is manufactured by the original equipment tensioner supplier and meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). As with the original equipment part, this replacement tensioner is manufactured in South Korea for Hyundai and Kia. The tensioner maintains the O.E. round spring technology as well as the internal damping design specified for this application. This tensioner comes equipped with a molded location pin for precise installation. 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 original equipment part supplier to ensure proper form, fit, and performance.
Internal “round spring” technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
Installation instructions included.
Heavy Duty Steel Pulley
Professional Mechanics will change this tensioner in 1 hour.
Accessory drive belts and tensioners are manufactured with similar design life targets. Since belt removal is required to change the tensioner, replacing both will extend the system service life and lower labor costs versus individual replacement.

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$134.99

This accessory drive belt tensioner assembly is designed to match the fit of an original equipment assembly on specified vehicles. It is engineered to help ensure proper belt tension when an original belt is slipping, broken, or worn from fatigue.

Product Features:

Direct replacement – this accessory drive belt tensioner assembly is designed to match the fit of an original equipment assembly on specified vehicles.
Ideal solution – engineered to help ensure proper belt tension when an original belt is slipping, broken, or worn from fatigue
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$89.99

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 slippage – or poor performance caused by low tension. A PTFE string wound within the spring resists abrasion and dampens noise. Dayco’s tensioner is also designed with a heavy-duty cast aluminum spring case and arm, which helps resist cracking and fatigue and offers additional strength, lessening the risk of distortion. Additional premium thermoplastic rubber spring slot plugs and rubber O-ring seals help keep contaminants out and zinc coated mounting bolts resist rust.

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

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$89.99

This Litens tensioner is manufactured by the Original Equipment (O.E.) supplier of this popular Hyundai/Kia tensioner. This “O.E. Exact”* part for the aftermarket meets all original equipment form, fit, and function specifications. *(O.E. Exact – Original Equipment manufacturers prohibits the use of their part number or logo on parts sold to other customers. Therefore, the Litens aftermarket part may have minor cosmetic differences but still be exact in performance and design). Design includes a tensioner arm lift feature to assist in belt removal and installation. Caution: Many aftermarket parts suppliers have removed the internal damping component in their designs. This may cause system noise and vibration. Choosing The Correct Replacement Part: Both the original equipment and Litens aftermarket tensioner use a round spring versus a flat spring and (like the OE part), are marked “Made in Korea”. 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 original equipment part supplier to ensure proper form, fit, and performance.
Internal “round spring” technology to provide constant belt tension and alignment throughout its service life.
Installation instructions included.
Heavy Duty Glass Reinforced Polymer Pulley for optimized dimensional control and running surface durability
Professional Mechanics will change this tensioner in approx. 20 minutes to 1 hour.
Accessory drive belts and tensioners are manufactured with similar design life targets. Since belt removal is required to change the tensioner, replacing both will extend the system service life and lower labor costs versus individual replacement.

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$51.99

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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$22.49

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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$31.72

MacKay utilizes leading edge rubber technology and compounds, supported by in-house processes from rubber mixing to final product. This ensures hoses are made to the strict specifications required for the advanced motor vehicles of the 21st century. In vehicles of today, a hose has to be designed to withstand the stresses of modern, more compact but powerful engines that run hotter and at a higher pressure. Other factors include smaller engine compartments with poor heat dissipation, aggressive coolant additives, and stray (electrochemical) current that may be conducting through the cooling system. In short, the smaller but more powerful engines of today work a lot harder than the larger engines that were standard before. More heat is generated, higher burst pressures are required in cooling system components, and hoses have to be made tougher to withstand these demands. MacKay’s research and development chemists have developed new rubber formulations and manufacturing processes that ensure MacKay hoses meet the greater wear and heat demands created by modern engines. Rubber compounds used in automotive hoses today are predominantly synthetic rubber formulation. All MacKay coolant hoses are made from EPDM compounds that are highly resistant to ozone attack. Hoses made from some other rubber compounds may be subject to ozone deterioration.

Product Features:

Excellent resistance to high temperatures
Resists chemical attack (oils, fuels etc.)
Excellent Ozone resistance
Good resistance to abrasion
High resistance to vibration

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$30.99

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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$59.99

Provides full coverage for today’s light-duty vehicle market, especially vehicles with troublesome drives
Engineered to help address noise issues caused by the belt drive
Capable of handling more extreme temperatures and workloads

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$48.49

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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$50.99

Provides full coverage for today’s light-duty vehicle market, especially vehicles with troublesome drives
Engineered to help address noise issues caused by the belt drive
Capable of handling more extreme temperatures and workloads

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$37.99

Dayco ela (elastic) or stretch belts are specifically designed for two, three, and four point drives that are designed to use self-tensioning belts. Although these belts may look like standard poly rib belts, they are very different. These specially designed elastic belts have self-tensioning capabilities required by specific OE drives. Vehicles that are manufactured with stretch belts must replace them with stretch belts. These belts are not interchangeable with standard constructed belts of their same size. Dayco ela belts utilize a proprietary EPDM construction that is designed to elongate over the fixed pulley system, and then maintain the required belt tension over the life of the belt. The backbone behind the Dayco ela belt is its specially developed polyamide tensile member, which allows for high elongation required for installation, yet provides the proper tension maintenance properties to transmit the accessory loads demanded for the drive. This belt construction incorporates a wear resistant EPDM rib material, along with a highly elastic EPDM cushion rubber that surrounds the polyamide tensile cord, thus providing the required adhesion and flexibility to maintain lasting performance. Stretch belts have unique installation instructions depending on the OE application. Installation may require a specialized tool for the application or a simple zip tie. Do not attempt to install by prying the belt on the pulleys. Dayco provides detailed instructions on the reverse side of the sleeve.

Product Features:

Utilizes a proprietary EPDM construction that is designed to elongate over the fixed pulley system, and then maintain the required belt tension over the life of the belt
Specially developed polyamide tensile member, which allows for high elongation required for installation, yet provides the proper tension maintenance properties to transmit the accessory loads demanded for the drive
Incorporates a wear resistant EPDM rib material, along with a highly elastic EPDM cushion rubber that surrounds the polyamide tensile cord, thus providing the required adhesion and flexibility to maintain lasting performance
These specially designed elastic belts have self-tensioning capabilities required by specific OE drives designed for a stretch belt

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$85.99

This Litens pulley is manufactured by one of the largest original equipment suppliers in the world and meets all form, fit, and performance characteristics of the original equipment part . The Litens replacement part is constructed of heavy duty steel for long life and trouble free performance. NOTE: This pulley has been recently upgraded to a “pulley assembly” by including preassembled attachment hardware to improve ease of installation 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.

Product Features:

Manufactured by one of the largest original equipment part suppliers to ensure proper form, fit, and performance.
Heavy Duty steel pulley with a long lasting automotive bearing.
Precision steel stamping with close tolerance ball bearing pocket. Pre-assembled pulleys save installation time and ensure that all components are assembled to original specifications for both installation and performance
Electro-deposited coating (e-coat) for superior corrosion resistance.
Running surface designed and engineered for proper belt tracking.
97.6mm O.D.; 10.mm I.D (with bushing); 25.9mm width; smooth running surface; high-grade steel construction. For use with a 4- rib serpentine belt.

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$23.99

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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$23.30

The Dayco Accessory Belt Idler Pulley is a direct fit OEM replacement that contains the same high quality craftsmanship as the original equipment it replaces.

Product Features:

OE-Equivalent and a direct fit application.
Precision bearing
OE High quality pulley assembly
Durable long life performance.

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$28.99

Litens Automotive is the original equipment (O.E.) supplier of this idler pulley assembly for Hyundai and Kia applications. The Litens replacement part meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). This part is manufactured to the same exacting specifications as the O.E. part. Heavy duty polymer construction for long trouble-free performance. This is a complete pulley ASSEMBLY including the pulley and an O.E. quality mounting bolt. Most common O.E. part numbers are 252862B10 and 252862B000 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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$27.23

Bando has been manufacturing rubber products for over 100 years. Bando is the OEM supplier to over 80 percent of the top 10 cars sold in the U.S. (by volume). Bando belts are made with EPDM rubber which adheres to OEM specification that is more heat resistant and long lasting. With 19 plants worldwide, Bando are the 3rd largest manufacturer of automotive drive belts in the world. Bando’s automotive belts, serpentine, timing and V-belts are engineered to meet the unique requirements of today’s high performance engines for applications that run the gamut from international racing teams to light duty trucks. Bando manufactures belts for the world’s leading automakers, supplying both OEM and aftermarket applications, all to the same exacting standards of quality.

Product Features:

Designed to provide the positive no-slip drive requirements needed on demanding overhead cam applications
Precision molded teeth are protected by durable fabric facing for long life
Tensile cord is engineered and tested for maximum load carrying capabilities
Rubber backing resists abrasion, oil and heat

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$53.54

All ContiTech V-Belts are quiet, OE-quality and virtually service free. The only time these belts require attention is during installation. Designed to be oil-resistant and temperature-stable from -22F to 176F (30C to 80C), ContiTech V-Belts are open-flanked, toothed, and shaped for greater traction and torque. High performance construction features include a synthetic fiber fabric cover, a special polyester cord designed to permit tightly controlled shrink, plus a polychloroprene rubber body, integrally molded cogs, and raw edges.

Product Features:

OE-Equivalent.
Direct fit for easy installation.
Resistant against wear, oil and heat.
Polyester fiber tensile members and a ribbed belt design.

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$20.40

The Mitsuboshi Multi Rib (Serpentine) Belt meets or exceeds the vehicle manufacturer’s specifications for durability, fit and quality. Installation Note: The manufacturer recommends checking and/or replacing idler and tensioner bearings when replacing the serpentine belts

Product Features:

OE-Equivalent.
Direct fit for easy installation.
Resistant against wear, oil and heat.

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$46.61

OE-Equivalent.
Direct fit for easy installation.
Resistant against wear, oil and heat.

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$30.99

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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$24.99

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 plastic pulleys with specially formulated glass-filled polymers that resist wear & tear. Premium lubricated ball bearings and double high temperature seals ensure peak bearing performance, the most critical element of a pulley’s service life.

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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$44.99

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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$31.19

The Dayco Accessory Belt Idler Pulley is a direct fit OEM replacement that contains the same high quality craftsmanship as the original equipment it replaces.

Product Features:

OE-Equivalent and a direct fit application.
Precision bearing
OE High quality pulley assembly
Durable long life performance.

Upgrade your 2018 Kia Optima with Top-Quality Belts and Hoses

When it comes to maintaining or upgrading your 2018 Kia Optima, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Kia or enhancing its overall performance, Belts and Hoses are key to keeping your Optima functioning at its best. At Advance Auto Parts, we offer a wide selection of 16 Belts and Hoses for the 2018 Kia Optima, designed to meet your needs without breaking the bank. From Serpentine and V Belt replacements to Belt Tensioners upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Belts and Hoses for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Belts and Hoses for your 2018 Kia Optima at great prices. Our Belts and Hoses inventory for this model ranges from just $20.99 to $138.99, with an average price of $51.53. Our 16 Belts and Hoses in stock come from 5 trusted brands, so you’re sure to find the right part for your 2018 Kia Optima without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2018 Kia Optima, we stock popular OEM and aftermarket Belts and Hoses from top names like Dayco Driveworks, and more. Dayco Belts and Hoses start at just $20.99 and boast an impressive 5 stars average rating from customers. With 135 customer reviews and counting, our 2018 Kia Optima Belts and Hoses have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Belts and Hose upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2018 Kia Optima is always ready to roll. We’re committed to providing you with everything you need to keep your Optima in top shape, all in one place. Start shopping confidently below for your 2018 Kia Optima!

Best-Selling Serpentine and V Belts for 2018 Kia Optimas

Enhance the driving experience in your Kia with 10 quality Serpentine and V Belt components, starting at $22.79.

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$22.79

Constructed with aramid reinforced EPDM compounds, the Dayco poly-V serpentine belt delivers more than just OE quality. Developed through extensive laboratory and road testing, the rib profile in this EPDM belt has been engineered to conform to high mileage, worn or misaligned drives and helps eliminate noisy belt conditions. Dayco poly rib serpentine belts offer extensive flexibility and longer service life, while handling higher workloads and temperatures.

Product Features:

Provides full coverage for today’s light-duty vehicle market, especially vehicles with troublesome drives
Engineered to help address noise issues caused by the belt drive
Capable of handling more extreme temperatures and workloads
Made in the USA

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$24.79

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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$22.99

Utilizes a proprietary EPDM construction that is designed to elongate over the fixed pulley system, and then maintain the required belt tension over the life of the belt
Specially developed polyamide tensile member, which allows for high elongation required for installation, yet provides the proper tension maintenance properties to transmit the accessory loads demanded for the drive
Incorporates a wear resistant EPDM rib material, along with a highly elastic EPDM cushion rubber that surrounds the polyamide tensile cord, thus providing the required adhesion and flexibility to maintain lasting performance
These specially designed elastic belts have self-tensioning capabilities required by specific OE drives designed for a stretch belt

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$63.99

The Dayco poly-V aramid belt is engineered to maintain a quiet, vibration-free belt drive system, especially for higher output OE engines that require an aramid belt. Unlike polyester-corded belts, this aramid cord belt is designed to resist the expected elongations, especially during high accessory loading. This unique feature of length stability and minimal stretch aids in difficult drives where span vibrations and tensioner movements are excessive. The Dayco aramid cord poly rib belt is built with Dayco’s specially designed EPDM rubber compounds to resist cracking and perform better under extreme temperature ranges.

Product Features:

Designed for applications with an OEM aramid belt and is specifically helpful for those with noise, vibration or harshness issues, or in-drive systems in which tensioner take-up is minimal
Length stability resists excessive span vibrations or tensioner movements
Features special compounds that resist cracking and perform well under intense engine temperatures

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$42.99

Dayco ela self-tensioning belts incorporate a wear-resistant EPDM rib material, along with a highly elastic EPDM cushion rubber that surrounds the polyamide tensile cord, thus providing the required adhesion & flexibility to maintain lasting performance. The backbone behind the Dayco ela self-tensioning belt is its polyamide tensile member, which allows the high elongation required for installation, yet provides the proper tension maintenance properties to transmit the accessory loads demanded for the drive.

Product Features:

Designed for two- to four-point drives that do not require automatic or manual tensioning.
Provides self-tensioning capabilities required by specific OE drives designed for a stretch’ belt
Elasticity allows for long-lasting performance and proper tension
Elasticityáallows for long-lasting performance and proper tension

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$27.57

Bando USA has been a leading OE supplier to automotive manufacturers for over 50 years and Bando serpentine belts are original equipment on over 70% of the top 10 selling vehicles in North America. Bando USA will not compromise on critical quality measurements. Bando belts are produced to the same, more precise OE metric size to deliver an exact fit within the millimeter, ensuring a perfect fit every time. In addition to exact metric sizing, Bando USA aftermarket serpentine belts provide true OE performance for its aftermarket belts, as they are produced on the same manufacturing lines as the OE belts. Installation Note: The manufacturer recommends checking and/or replacing idler and tensioner bearings when replacing the serpentine belts

Product Features:

OE-Equivalent.
Direct fit for easy installation.
Resistant against wear, oil and heat.
Strong tensile cords limit stretching.
Supports higher horsepower loads.
Made from high strength synthetic rubber.

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$46.99

Designed for applications with an OEM aramid belt and is specifically helpful for those with noise, vibration or harshness issues, or in-drive systems in which tensioner take-up is minimal
Length stability resists excessive span vibrations or tensioner movements
Features special compounds that resist cracking and perform well under intense engine temperatures

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$31.19

The Dayco Accessory Belt Idler Pulley is a direct fit OEM replacement that contains the same high quality craftsmanship as the original equipment it replaces.

Product Features:

OE-Equivalent and a direct fit application.
Precision bearing
OE High quality pulley assembly
Durable long life performance.

from

$28.77

OE-Equivalent.
Direct fit for easy installation.
Resistant against wear, oil and heat.

from

$27.23

Designed to provide the positive no-slip drive requirements needed on demanding overhead cam applications
Precision molded teeth are protected by durable fabric facing for long life
Tensile cord is engineered and tested for maximum load carrying capabilities
Rubber backing resists abrasion, oil and heat

Most Popular 2018 Kia Optima Belt Tensioners

Customize your Kia with 1 Belt Tensioners products like Belt Tensioner Assemblies, all priced under $138.99.

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$138.99

This genuine Litens belt tensioner is supplied by the original equipment tensioner supplier and meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). As with the original equipment part, this tensioner is manufactured in Korea for these Hyundai/Kia applications. Manufactured with an O.E. specified heavy duty steel 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 original equipment part supplier to ensure proper form, fit, and performance.
Internal “round spring” technology to provide constant belt tension and alignment throughout its service life. The internal damping design provides quiet, smooth, system performance.
Durable Steel/Smooth Pulley for long service life and performance.
Installation instructions included

Top Picks for 2018 Kia Optima Pulleys

Upgrade Kia Optimas with top-quality Pulleys parts, including 4 OEM and aftermarket selections for your 2018 model.

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$20.99

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 plastic pulleys with specially formulated glass-filled polymers that resist wear & tear. Premium lubricated ball bearings and double high temperature seals ensure peak bearing performance, the most critical element of a pulley’s service life.

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

from

$23.99

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

from

$28.99

from

$138.99

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

In-Demand Engine Cooling Hoses for 2018 Kia Optimas

Select from 1 premium Engine Cooling Hoses parts for your 2018 Kia Optima.

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$30.99

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

Top-Rated Belts and Hoses Brands For Your 2018 Kia Optima

Shop for the best-rated brands offering Belts and Hoses and other products for your 2018 Kia Optimas. Below you’ll find some of our best rated Belts and Hoses from Dayco and Driveworks, and more. Belts and Hoses from these brands that fit a 2018 Optima start at just $20.99 and are rated as high as 5 stars. OEM and aftermarket Belts and Hoses don’t get more top quality, durable, and affordable than from the brands below.

Popular Dayco 2018 Kia Optima Belts and Hoses

When it comes to maintaining or upgrading your 2018 Kia Optima, using quality Belts and Hoses is essential to ensure durability and a perfect fit. Dayco ticks all of those boxes. We offer a wide selection of Dayco Belts and Hoses, specifically designed for the 2018 Kia Optima. With over 10 Dayco brand Belts and Hoses in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $20.99, with an average price of just $44.59. Plus, with over 76 customer reviews and an average rating of 5 stars, you can trust that our Dayco Belts and Hoses will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

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$42.99

This product is not rated

Stretch Serpentine Belt; 31.26 Long, 3 Rib Count, Zip Tie Required

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$63.99

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Aramid Cord Poly Rib Belt Serpentine Belt; 39.76 Long, 6 Rib Count

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$22.99

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Stretch Serpentine Belt: 30.5 "Long, 3 Rib Count, Engineered For High Mileage

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Popular Driveworks 2018 Kia Optima Belts and Hoses

Driveworks auto parts is one of the highest quality Belts and Hose brands in the market. Any 2018 Kia Optima owner should feel confident when installing genuine Driveworks parts in their vehicle. To ensure the best fit and performance for your 2018 Optima, Advance Auto Parts carries a full inventory of 1 Driveworks Belts and Hoses. Plus you will be keeping your Kia in peak condition while saving money because prices on these Driveworks Belts and Hoses range up to $24.79, plus, with more than 7 customer reviews and an impressive 4 stars average rating, you can be confident the Fram Belts and Hoses below will deliver on both quality and value.

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$24.79

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Poly Rib Belt Serpentine Belt; 49.5 Long, 6 Rib Count

“Belt fit as expected.”

FAQs for 2018 Kia Optima Belts and Hoses

Which Belts and Hoses are best-sellers for 2018 Kia Optimas?

Out of 16 Belts and Hoses that fit 2018 Kia Optimas, the following parts are the top sellers:

Poly Rib Belt Serpentine Belt; 49.5 Long, 6 Rib Count (5061229) – $24.79
Stretch Serpentine Belt: 30.5 "Long, 3 Rib Count, Engineered For High Mileage (11936560) – $22.99
Accessory Drive Belt Tensioner – Original Equipment Quality (12452585) – $138.99

What’s the price range for 2018 Kia Optima Belts and Hoses?

Belts and Hose prices for the 2018 Kia Optima start at $20.99 and go up to $138.99 for the most premium parts.

What’s the average price of a Belts and Hose for a 2018 Kia Optima?

The average price for Belts and Hoses for the 2018 Kia Optima is $51.53. Keep in mind the variety of part types within our Belts and Hose category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Belts and Hoses for other Kia Optima model years?

Yes, we currently carry Belts and Hoses for 19 model years of Kia Optimas between 2001 and 2020. Belts and Hoses are bought most frequently for the following model years: 2020, 2019, 2017, 2016, 2015, 2014, 2013, 2012, and 2011.

What are the cheapest Belts and Hoses for my 2018 Kia Optima?

The cheapest 2018 Kia Optima Belts and Hoses we carry in stock are:

Serpentine Idler/Tensioner Pulley; Polymer, 65mm Dia., 24.5mm Width, Smooth (99995959) – $20.99
Poly Rib Belt Serpentine Belt; 49.5 Long, 6 Rib Count (3290109) – $22.79
Stretch Serpentine Belt: 30.5 "Long, 3 Rib Count, Engineered For High Mileage (11936560) – $22.99
Serpentine Idler/Tensioner Pulley; Polymer, 90mm Dia., 27mm Width, Smooth (5160006) – $23.99
Poly Rib Belt Serpentine Belt; 49.5 Long, 6 Rib Count (5061229) – $24.79

What are the top-rated Belts and Hoses that fit the 2018 Kia Optima?

Out of 135 reviews by customers, our 2018 Kia Optima Belts and Hoses have an average customer rating of . These are some of the highest-rated Belts and Hose types for the 2018 Kia Optima and their top-rated products:

Serpentine and V Belts
- Poly Rib Belt Serpentine Belt; 49.5 Long, 6 Rib Count (3290109) – $22.79
- Poly Rib Belt Serpentine Belt; 49.5 Long, 6 Rib Count (5061229) – $24.79

What types of Belts and Hoses do you sell for my 2018 Kia Optima?

As of 2/5/25, these are some of the most in-demand types of Belts and Hoses for a 2018 Kia Optima:

Can I get help with 2018 Kia Optima Belts and Hose orders?

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

What is your return policy for Kia Optima Belts and Hoses?

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

2018 Kia Optima Belts and Hoses

Dayco – Serpentine Idler/Tensioner Pulley; Steel, 65mm Dia., 31.19mm Width, Smooth (Part No.89815)

Dorman – Idler/Tensioner Pulley: Specific Fit, Steel, 90 mm Diameter (Part No.419-717)

Dayco – Dayco, Acc. Belt Tension Pulley, Idler (Part No.G60111221076DAY)

Litens – Tensioner Pulley: Direct Fit, Steel, 65mm Diameter (Part No.900713A)

Litens – Accessory Drive Belt Tensioner – Original Equipment Quality (Part No.999365A)

Dorman – AUTO BELT TENSIONER (Part No.419-327)

Dayco – Serpentine Belt Tensioner; 1 Piece, HD, Built To Outperform And Outlast OE Parts (Part No.89304)

Litens – Accessory Drive Belt Tensioner – Original Equipment Quality (Part No.999028A)

Gates – Premium Molded Coolant Hose (Part No.23316)

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 22" Long, 1.38" Diameter (Part No.E72099)

MacKay – Molded Radiator Hose (Part No.G2000313608MKY)

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 21" Long, 1.38" Diameter (Part No.E72893)

Dayco – Poly Rib Belt Serpentine Belt; 102 Long, 6 Rib Count (Part No.5061020)

Gates – Micro-V« Serpentine Drive Belt (Part No.K060840)

Dayco – Poly Rib Belt Serpentine Belt; 83.5 Long, 6 Rib Count (Part No.5060835)

Dayco – Ela Poly Rib Belt (Part No.E030301)

Litens – Idler/Tensioner Pulley: Direct Fit, Steel, 90mm Diameter (Part No.900215A)

Dayco – Serpentine Idler/Tensioner Pulley; Polymer, 90mm Dia., 27mm Width, Smooth (Part No.89018)

Dayco – Dayco, Acc. Belt Tension Pulley (Part No.G6011281685DAY)

Litens – Idler Pulley: Direct Fit, Steel, 95mm Diameter, w/ Hardware (Part No.900512A)

Bando – Precision Engineered V-Belt (Part No.W10001342404BAN)

ContiTech – Drive V-Belt (Part No.W1000571184CON)

Mitsubishi – Multi-Rib (Serpentine) Belt (Part No.W100027666MBL)

Mitsubishi – Multi-Rib (Serpentine) Belt (Part No.W1000381986MBL)

Dayco – Serpentine Idler/Tensioner Pulley; Direct Fit, 90 mm Diameter, 30 mm Smooth (Part No.89006)

Dayco – Serpentine Idler/Tensioner Pulley; Polymer, 70mm Dia., 24.5mm Width, Smooth (Part No.89133)

Dayco – Serpentine Idler/Tensioner Pulley; Steel, 82.5mm Dia., 29mm Width, Smooth (Part No.89505)

Dayco – Dayco, Acc. Belt Idler Pulley (Part No.G60201221093DAY)

Dayco – Poly Rib Belt Serpentine Belt; 49.5 Long, 6 Rib Count (Part No.5060495)

Driveworks – Poly Rib Belt Serpentine Belt; 49.5 Long, 6 Rib Count (Part No.495K6)

Dayco – Stretch Serpentine Belt: 30.5 "Long, 3 Rib Count, Engineered For High Mileage (Part No.E030305)

Dayco – Aramid Cord Poly Rib Belt Serpentine Belt; 39.76 Long, 6 Rib Count (Part No.A060398)

Dayco – Stretch Serpentine Belt; 31.26 Long, 3 Rib Count, Zip Tie Required (Part No.3PK794EE)

Bando – Multi Rib (Serpentine) Belt (Part No.W1000423270BAN)

Dayco – Aramid Cord Poly Rib Belt Serpentine Belt; 41.57 Long, 7 Rib Count (Part No.A070416)

Dayco – Dayco, Acc. Belt Idler Pulley (Part No.G60201221093DAY)

Mitsuboshi – Multi-Rib (Serpentine) Belt (Part No.W10001514416MBL)

Bando – Precision Engineered V-Belt (Part No.W10001342404BAN)

Litens – Accessory Drive Belt Tensioner – Original Equipment Quality (Part No.999668A)

Dayco – Serpentine Idler/Tensioner Pulley; Polymer, 65mm Dia., 24.5mm Width, Smooth (Part No.89161)

Dayco – Serpentine Idler/Tensioner Pulley; Polymer, 90mm Dia., 27mm Width, Smooth (Part No.89018)

Litens – Idler Pulley: Direct Fit, Steel, 95mm Diameter, w/ Hardware (Part No.900512A)

Dayco – Serpentine Idler/Tensioner Pulley; Steel, 65mm Dia., 31.19mm Width, Smooth (Part No.89815)

Dayco – Curved Radiator Hoses: EPDM Rubber, Standard Duty, 21" Long, 1.38" Diameter (Part No.E72893)