2021 Kenworth T800 Filters and PCVs

Essential Filters and PCVs for 2021 Kenworth T800s

Carquest Premium – Cabin Air Filter: Improves Interior Air Quality and Comfort (Part No.93982)

Cabin Air Filter: Improves Interior Air Quality and Comfort

from

$88.99
Carquest Premium Cabin Air Filters help keep the air you breathe clean by preventing harmful airborne contaminants from entering your vehicle’s interior. Cabin air filters effectively filter the air entering through the HVAC system by capturing dust, pollen, mold spores, and other allergens. These filters help provide a more comfortable environment for passengers inside the vehicle. Carquest Premium Cabin Air Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
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Carquest Premium – Cabin Air Filter: Improves Interior Air Quality and Comfort (Part No.93654)

Cabin Air Filter: Improves Interior Air Quality and Comfort

from

$58.99
Carquest Premium Cabin Air Filters help keep the air you breathe clean by preventing harmful airborne contaminants from entering your vehicle’s interior. Cabin air filters effectively filter the air entering through the HVAC system by capturing dust, pollen, mold spores, and other allergens. These filters help provide a more comfortable environment for passengers inside the vehicle. Carquest Premium Cabin Air Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
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Carquest Premium – Cabin Air Filter: Improves Interior Air Quality and Comfort (Part No.97008)

Cabin Air Filter: Improves Interior Air Quality and Comfort

from

$30.49
Carquest Premium Cabin Air Filters help keep the air you breathe clean by preventing harmful airborne contaminants from entering your vehicle’s interior. Cabin air filters effectively filter the air entering through the HVAC system by capturing dust, pollen, mold spores, and other allergens. These filters help provide a more comfortable environment for passengers inside the vehicle. Carquest Premium Cabin Air Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
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Carquest Premium – Cabin Air Filter: Improves Interior Air Quality and Comfort (Part No.93664)

Cabin Air Filter: Improves Interior Air Quality and Comfort

from

$66.99
Carquest Premium Cabin Air Filters help keep the air you breathe clean by preventing harmful airborne contaminants from entering your vehicle’s interior. Cabin air filters effectively filter the air entering through the HVAC system by capturing dust, pollen, mold spores, and other allergens. These filters help provide a more comfortable environment for passengers inside the vehicle. Carquest Premium Cabin Air Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
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Carquest Premium – Transmission Filter: Supports Transmission Longevity and Performance (Part No.84740XE)

Transmission Filter: Supports Transmission Longevity and Performance

from

$209.99
Carquest Premium Transmission Filters keep your transmission fluid clean by removing dirt, metal particles, and debris that can damage internal transmission components. These filters help prevent damage to gears, bearings, valves, and clutches by eliminating harmful contaminants. Maintaining clean fluid helps support smooth shifting, reduce wear, and enhance overall transmission efficiency. Carquest Premium Transmission Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Conventional cartridge hydraulic filter
  • Made in USA
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Carquest Premium – Oil Filter: Removes Oil Contaminants for Superior Engine Protection (Part No.85374HD)

Oil Filter: Removes Oil Contaminants for Superior Engine Protection

from

$15.29
Carquest Premium Oil Spin-on Filters protect your engine by removing contaminants, such as dirt, metal particles, and sludge, from your engine oil. These filters effectively remove contaminants that can cause significant wear and damage to critical engine components. The spin-on design screws directly onto a mounting head, allowing for easy servicing and replacement. By keeping the oil clean, these filters help ensure proper lubrication and cooling, reduce friction and help extend engine life. Carquest Premium Oil Spin-on Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Made in USA
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Carquest Premium – Transmission Filter: Supports Transmission Longevity and Performance (Part No.94282)

Transmission Filter: Supports Transmission Longevity and Performance

from

$46.49
Carquest Premium Transmission Filters keep your transmission fluid clean by removing dirt, metal particles, and debris that can damage internal transmission components. These filters help prevent damage to gears, bearings, valves, and clutches by eliminating harmful contaminants. Maintaining clean fluid helps support smooth shifting, reduce wear, and enhance overall transmission efficiency. Carquest Premium Transmission Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Medium pressure spin-on hydraulic filter
  • Includes 9 PSID By-Pass Valve
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Carquest Premium – Transmission Filter: Supports Transmission Longevity and Performance (Part No.84741XE)

Transmission Filter: Supports Transmission Longevity and Performance

from

$199.99
Carquest Premium Transmission Filters keep your transmission fluid clean by removing dirt, metal particles, and debris that can damage internal transmission components. These filters help prevent damage to gears, bearings, valves, and clutches by eliminating harmful contaminants. Maintaining clean fluid helps support smooth shifting, reduce wear, and enhance overall transmission efficiency. Carquest Premium Transmission Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Conventional cartridge hydraulic filter
  • Made in USA
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Carquest Premium – Fuel Filter: Engineered for Optimal Engine Efficiency and Performance (Part No.96685)

Fuel Filter: Engineered for Optimal Engine Efficiency and Performance

from

$108.99
Carquest Premium Fuel Cartridge Filters protect your engine and fuel system by removing dirt, rust, and other impurities from the fuel before it reaches your engine fuel system. These filters effectively remove contaminants to prevent clogging and damage to fuel injectors, pumps and other critical engine components. The cartridge design installs in a housing, allowing for easy servicing and replacement. By keeping fuel clean, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel Cartridge Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
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Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.86406)

Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System

from

$42.49
Carquest Premium Fuel/Water Separator Filters remove water and other impurities from the fuel before it reaches your engine fuel system. These filters effectively separate water from the fuel, preventing corrosion and damage to fuel injectors, pumps and other critical engine components. By keeping the fuel clean and water-free, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel/Water Separator Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • CAUTION: Furnished D-Ring must be installed on post for seal. Can be used with 99226 base.
  • Contains Standpipe
  • Patent pending drain, metal end caps, which hold media in place
  • Rust resistant can, ensuring no leakage from inside
  • Made in USA
  • Includes Standpipe
  • CAUTION: Furnished D-Ring must be installed on post for seal.
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Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.86357)

Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System

from

$26.49
Carquest Premium Fuel/Water Separator Filters remove water and other impurities from the fuel before it reaches your engine fuel system. These filters effectively separate water from the fuel, preventing corrosion and damage to fuel injectors, pumps and other critical engine components. By keeping the fuel clean and water-free, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel/Water Separator Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Application engineered media which aids in stripping water in diesel fuels
  • Patent pending drain, metal end caps, which hold media in place
  • Rust resistant can, ensuring no leakage from inside
  • Made in USA
  • CAUTION: Furnished O-Ring must be installed on post for seal.
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Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.96059)

Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System

from

$82.99
Carquest Premium Fuel/Water Separator Filters remove water and other impurities from the fuel before it reaches your engine fuel system. These filters effectively separate water from the fuel, preventing corrosion and damage to fuel injectors, pumps and other critical engine components. By keeping the fuel clean and water-free, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel/Water Separator Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Made in USA
  • Includes Integral Post Seal. Sensor Port Thread: 1/2-20
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Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.86935)

Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System

from

$84.99
Carquest Premium Fuel/Water Separator Filters remove water and other impurities from the fuel before it reaches your engine fuel system. These filters effectively separate water from the fuel, preventing corrosion and damage to fuel injectors, pumps and other critical engine components. By keeping the fuel clean and water-free, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel/Water Separator Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Bowl Thread: 3 3/4-10
  • Integral Post Seal
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Fram – Engine Oil Filter: Heavy Duty Full-Flow Lube Spin-On (Part No.PH3612)

Engine Oil Filter: Heavy Duty Full-Flow Lube Spin-On

from

$21.79
FRAM oil filters are designed for enhanced efficiency and capacity.
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Carquest Premium – Oil Filter: Removes Oil Contaminants for Superior Engine Protection (Part No.84037)

Oil Filter: Removes Oil Contaminants for Superior Engine Protection

from

$44.49
Carquest Premium Oil Spin-on Filters protect your engine by removing contaminants, such as dirt, metal particles, and sludge, from your engine oil. These filters effectively remove contaminants that can cause significant wear and damage to critical engine components. The spin-on design screws directly onto a mounting head, allowing for easy servicing and replacement. By keeping the oil clean, these filters help ensure proper lubrication and cooling, reduce friction and help extend engine life. Carquest Premium Oil Spin-on Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Heavy base plate to ensure minimal defection during extreme engine vibrations
  • Tapped threads vs rolled threads ensure proper mounting torque is achieved
  • Made in USA
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Carquest Premium – Oil Filter: Removes Oil Contaminants for Superior Engine Protection (Part No.85791XD)

Oil Filter: Removes Oil Contaminants for Superior Engine Protection

from

$34.49
Carquest Premium Oil Spin-on Filters protect your engine by removing contaminants, such as dirt, metal particles, and sludge, from your engine oil. These filters effectively remove contaminants that can cause significant wear and damage to critical engine components. The spin-on design screws directly onto a mounting head, allowing for easy servicing and replacement. By keeping the oil clean, these filters help ensure proper lubrication and cooling, reduce friction and help extend engine life. Carquest Premium Oil Spin-on Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Made in USA
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Carquest Premium – Oil Filter: Removes Oil Contaminants for Superior Engine Protection (Part No.85607)

Oil Filter: Removes Oil Contaminants for Superior Engine Protection

from

$17.99
Carquest Premium Oil Spin-on Filters protect your engine by removing contaminants, such as dirt, metal particles, and sludge, from your engine oil. These filters effectively remove contaminants that can cause significant wear and damage to critical engine components. The spin-on design screws directly onto a mounting head, allowing for easy servicing and replacement. By keeping the oil clean, these filters help ensure proper lubrication and cooling, reduce friction and help extend engine life. Carquest Premium Oil Spin-on Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Made in USA
  • 84620 may be used in place of 85607. Do NOT substitute 85607 for 84620.
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Carquest Premium – Oil Filter: Removes Oil Contaminants for Superior Engine Protection (Part No.84370)

Oil Filter: Removes Oil Contaminants for Superior Engine Protection

from

$97.99
Carquest Premium Oil Cartridge Filters protect your engine by removing contaminants, such as dirt, metal particles, and sludge, from your engine oil. These filters effectively remove contaminants that can cause significant wear and damage to critical engine components. The cartridge design installs in a housing, allowing for easy servicing and replacement. By keeping the oil clean, these filters help ensure proper lubrication and cooling, reduce friction and help extend engine life. Carquest Premium Oil Cartridge Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Superior Application Specific Media
  • Molded plastic end caps, providing excellent sealing, preventing by pass of contamination
  • Supplied with o ring, and or gasket if required
  • Made in USA
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Carquest Premium – Fuel Filter: Engineered for Optimal Engine Efficiency and Performance (Part No.86966)

Fuel Filter: Engineered for Optimal Engine Efficiency and Performance

from

$46.99
Carquest Premium Fuel Spin-on Filters protect your engine and fuel system by removing dirt, rust, and other impurities from the fuel before it reaches your engine fuel system. These filters effectively remove contaminants to prevent clogging and damage to fuel injectors, pumps and other critical engine components. The spin-on design screws directly onto a mounting head, allowing for easy servicing and replacement. By keeping the fuel clean, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel Spin-on Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Contains integral Post Seal
  • Metal ends cap, rigid center tube, strength can, and positive sealing O-ring
  • Made in USA
  • Includes Integral Post Seal
  • CAUTION: Furnished End Seal must be installed on post for seal.
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Carquest Premium – Fuel Filter: Engineered for Optimal Engine Efficiency and Performance (Part No.86109)

Fuel Filter: Engineered for Optimal Engine Efficiency and Performance

from

$18.99
Carquest Premium Fuel Spin-on Filters protect your engine and fuel system by removing dirt, rust, and other impurities from the fuel before it reaches your engine fuel system. These filters effectively remove contaminants to prevent clogging and damage to fuel injectors, pumps and other critical engine components. The spin-on design screws directly onto a mounting head, allowing for easy servicing and replacement. By keeping the fuel clean, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel Spin-on Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Spin on fuel filter with application specific media to meet or exceed OE performance, and emission requirements
  • Metal ends cap, rigid center tube, strength can, and positive sealing O-ring
  • Made in USA
  • CAUTION: Furnished D-Ring must be installed on post for seal.
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Carquest Premium – Fuel Filter: Engineered for Optimal Engine Efficiency and Performance (Part No.86711)

Fuel Filter: Engineered for Optimal Engine Efficiency and Performance

from

$54.99
Carquest Premium Fuel Spin-on Filters protect your engine and fuel system by removing dirt, rust, and other impurities from the fuel before it reaches your engine fuel system. These filters effectively remove contaminants to prevent clogging and damage to fuel injectors, pumps and other critical engine components. The spin-on design screws directly onto a mounting head, allowing for easy servicing and replacement. By keeping the fuel clean, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel Spin-on Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Spin on fuel filter with application specific media to meet or exceed OE performance, and emission requirements
  • Metal ends cap, rigid center tube, strength can, and positive sealing O-ring
  • Made in USA
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Fram – Fuel Filter: Secondary Spin-On (Part No.P1147G)

Fuel Filter: Secondary Spin-On

from

$12.39
This high-volume accessory is designed to promote efficient fuel injection performance. FRAM offers exceptional domestic and import fuel filter coverage to meet the needs of virtually all engine configurations.

Product Features:
  • Designed for use in modern fuel injection systems and with oxygenated fuels
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Carquest Premium – Fuel Filter: Engineered for Optimal Engine Efficiency and Performance (Part No.96498)

Fuel Filter: Engineered for Optimal Engine Efficiency and Performance

from

$129.99
Carquest Premium Fuel Spin-on Filters protect your engine and fuel system by removing dirt, rust, and other impurities from the fuel before it reaches your engine fuel system. These filters effectively remove contaminants to prevent clogging and damage to fuel injectors, pumps and other critical engine components. The spin-on design screws directly onto a mounting head, allowing for easy servicing and replacement. By keeping the fuel clean, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel Spin-on Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Spin on fuel filter with application specific media to meet or exceed OE performance, and emission requirements
  • Metal ends cap, rigid center tube, strength can, and positive sealing O-ring
  • Made in USA
  • Fill Plug pre-installed in filter. Remove after pre-filling filter with fuel prior to installation on application.
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Carquest Premium – Air Filter: Superior Protection for Clean Engine Air Intake Systems (Part No.87661)

Air Filter: Superior Protection for Clean Engine Air Intake Systems

from

$189.99
Carquest Premium Air Filters ensure your equipment runs smoothly with our high-quality filtration media that prevents airborne contaminants, such as dust, dirt, and debris, from reaching your combustion chamber. Protecting critical engine components from wear and damage helps maintain optimal engine power, improve fuel efficiency, and extend engine life – keeping your equipment performing at its best. Carquest Premium Air Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Axial seal primary air filter
  • Inside-Out Flow Direction, Positive foam sealing design
  • Metal end caps, expanded metal exterior protecting the Application Specific Media
  • Made in USA
  • Inside-Out Flow Direction
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Carquest Premium – Primary Air Filter: Superior Protection for Clean Engine Air Intake Systems (Part No.93807)

Primary Air Filter: Superior Protection for Clean Engine Air Intake Systems

from

$217.99
Carquest Premium Primary Radial Seal Air Filters protect your equipment by preventing airborne contaminants, such as dust, dirt, and debris, from reaching your combustion chamber. Featuring a durable radial seal design, these filters use a urethane compound to mold the ends and bond the media pack with the inner and outer metal wrappers, creating a strong yet flexible package. Carquest Premium Primary Radial Seal Air Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).
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Carquest Premium – Air Filter: Superior Protection for Clean Engine Air Intake Systems (Part No.83456)

Air Filter: Superior Protection for Clean Engine Air Intake Systems

from

$402.99
Carquest Premium Primary Channel Flow Air Filters protect your equipment by preventing airborne contaminants, such as dust, dirt, and debris, from reaching your combustion chamber. The unique Channel Flow controlled pathways allow air to flow smoothly and efficiently through the filter media, helping optimize your engine performance. Carquest Premium Primary Channel Flow Air Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Channel Flow primary air filter
  • Latest design to comply with new emission standards
  • Compact design with high efficiency and extended capacity, while reducing restriction
  • Made in USA
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Carquest Premium – Primary Air Filter: Superior Protection for Clean Engine Air Intake Systems (Part No.93009)

Primary Air Filter: Superior Protection for Clean Engine Air Intake Systems

from

$268.99
Carquest Premium Primary Air Filters ensure your equipment runs smoothly with our high-quality filtration media that prevents airborne contaminants, such as dust, dirt, and debris, from reaching your combustion chamber. Protecting critical engine components from wear and damage helps maintain optimal engine power, improve fuel efficiency, and extend engine life – keeping your equipment performing at its best. Carquest Premium Primary Air Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Made in USA
  • Includes Inlet Tube
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Carquest Premium – Replacement for Ecolite Air Filter in Disposable Housing (Part No.88897)

Replacement for Ecolite Air Filter in Disposable Housing

from

$519.99
Clean air is essential to the performance and life of your engine. Air filters reduce the amount of airborne pollutants and particles by capturing dust, pollen and other airborne contaminants. CARQUEST HD air filters are designed to meet or exceed OE filter performance.

Product Features:
  • ECO Air filter element with disposable housing
  • Made in USA
  • Includes Bleed Valve
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Upgrade your 2021 Kenworth T800 with Top-Quality Filters and PCVs

When it comes to maintaining or upgrading your 2021 Kenworth T800, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Kenworth or enhancing its overall performance, Filters and PCVs are key to keeping your T800 functioning at its best. At Advance Auto Parts, we offer a wide selection of 14 Filters and PCVs for the 2021 Kenworth T800, designed to meet your needs without breaking the bank. From Fuel Filter replacements to Transmission Filters 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 Filters and PCVs for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Filters and PCVs for your 2021 Kenworth T800 at great prices. Our Filters and PCVs inventory for this model ranges from just $15.29 to $402.99, with an average price of $148.72. Our 14 Filters and PCVs in stock come from trusted brands, so you’re sure to find the right part for your 2021 Kenworth T800 without overspending.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Filters and PCV upgrades. Explore related part types like Batteries and Chargers, Fluids and Chemicals and more to make sure your 2021 Kenworth T800 is always ready to roll. We’re committed to providing you with everything you need to keep your T800 in top shape, all in one place. Start shopping confidently below for your 2021 Kenworth T800!

Best-Selling Fuel Filters for 2021 Kenworth T800s

Enhance the driving experience in your Kenworth with 6 quality Fuel Filter components, starting at $59.99.

Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.96706)

Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System

from

$184.99
Carquest Premium Fuel/Water Separator Filters remove water and other impurities from the fuel before it reaches your engine fuel system. These filters effectively separate water from the fuel, preventing corrosion and damage to fuel injectors, pumps and other critical engine components. By keeping the fuel clean and water-free, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel/Water Separator Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
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Carquest Premium – Fuel Filter: Engineered for Optimal Engine Efficiency and Performance (Part No.96728)

Fuel Filter: Engineered for Optimal Engine Efficiency and Performance

from

$145.99
Carquest Premium Fuel Spin-on Filters protect your engine and fuel system by removing dirt, rust, and other impurities from the fuel before it reaches your engine fuel system. These filters effectively remove contaminants to prevent clogging and damage to fuel injectors, pumps and other critical engine components. The spin-on design screws directly onto a mounting head, allowing for easy servicing and replacement. By keeping the fuel clean, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel Spin-on Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Fill Plug pre-installed in filter. Remove after pre-filling filter with fuel prior to installation on application.
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Carquest Premium – Fuel Filter: Engineered for Optimal Engine Efficiency and Performance (Part No.96685)

Fuel Filter: Engineered for Optimal Engine Efficiency and Performance

from

$108.99
Carquest Premium Fuel Cartridge Filters protect your engine and fuel system by removing dirt, rust, and other impurities from the fuel before it reaches your engine fuel system. These filters effectively remove contaminants to prevent clogging and damage to fuel injectors, pumps and other critical engine components. The cartridge design installs in a housing, allowing for easy servicing and replacement. By keeping fuel clean, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel Cartridge Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
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Carquest Premium – Fuel Filter: Engineered for Optimal Engine Efficiency and Performance (Part No.96684)

Fuel Filter: Engineered for Optimal Engine Efficiency and Performance

from

$108.99
Carquest Premium Fuel Cartridge Filters protect your engine and fuel system by removing dirt, rust, and other impurities from the fuel before it reaches your engine fuel system. These filters effectively remove contaminants to prevent clogging and damage to fuel injectors, pumps and other critical engine components. The cartridge design installs in a housing, allowing for easy servicing and replacement. By keeping fuel clean, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel Cartridge Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
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Carquest Premium – Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System (Part No.96691)

Fuel/Water Separator: Quality Removal of Water and Contaminants from Fuel System

from

$60.99
Carquest Premium Fuel/Water Separator Filters remove water and other impurities from the fuel before it reaches your engine fuel system. These filters effectively separate water from the fuel, preventing corrosion and damage to fuel injectors, pumps and other critical engine components. By keeping the fuel clean and water-free, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel/Water Separator Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
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Carquest Premium – Fuel Filter: Engineered for Optimal Engine Efficiency and Performance (Part No.86964)

Fuel Filter: Engineered for Optimal Engine Efficiency and Performance

from

$59.99
Carquest Premium Fuel Cartridge Filters protect your engine and fuel system by removing dirt, rust, and other impurities from the fuel before it reaches your engine fuel system. These filters effectively remove contaminants to prevent clogging and damage to fuel injectors, pumps and other critical engine components. The cartridge design installs in a housing, allowing for easy servicing and replacement. By keeping fuel clean, these filters help ensure optimal combustion, improve engine efficiency, and reduce emissions. Carquest Premium Fuel Cartridge Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Made in USA
  • Includes Burp Valve
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Most Popular 2021 Kenworth T800 Transmission Filters

Customize your Kenworth with 3 Transmission Filters products like Automatic Transmission Filters, all priced under $209.99.

Carquest Premium – Oil Filter: Removes Oil Contaminants for Superior Engine Protection (Part No.85374HD)

Oil Filter: Removes Oil Contaminants for Superior Engine Protection

from

$15.29
Carquest Premium Oil Spin-on Filters protect your engine by removing contaminants, such as dirt, metal particles, and sludge, from your engine oil. These filters effectively remove contaminants that can cause significant wear and damage to critical engine components. The spin-on design screws directly onto a mounting head, allowing for easy servicing and replacement. By keeping the oil clean, these filters help ensure proper lubrication and cooling, reduce friction and help extend engine life. Carquest Premium Oil Spin-on Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
  • Made in USA
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Carquest Premium – Transmission Filter: Supports Transmission Longevity and Performance (Part No.84740XE)

Transmission Filter: Supports Transmission Longevity and Performance

from

$209.99
Carquest Premium Transmission Filters keep your transmission fluid clean by removing dirt, metal particles, and debris that can damage internal transmission components. These filters help prevent damage to gears, bearings, valves, and clutches by eliminating harmful contaminants. Maintaining clean fluid helps support smooth shifting, reduce wear, and enhance overall transmission efficiency. Carquest Premium Transmission Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Conventional cartridge hydraulic filter
  • Made in USA
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Carquest Premium – Transmission Filter: Supports Transmission Longevity and Performance (Part No.84741XE)

Transmission Filter: Supports Transmission Longevity and Performance

from

$199.99
Carquest Premium Transmission Filters keep your transmission fluid clean by removing dirt, metal particles, and debris that can damage internal transmission components. These filters help prevent damage to gears, bearings, valves, and clutches by eliminating harmful contaminants. Maintaining clean fluid helps support smooth shifting, reduce wear, and enhance overall transmission efficiency. Carquest Premium Transmission Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Conventional cartridge hydraulic filter
  • Made in USA
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Top Picks for 2021 Kenworth T800 Air Filters

Upgrade Kenworth T800s with top-quality Air Filters parts, including 1 OEM and aftermarket selections for your 2021 model.

Carquest Premium – Air Filter: Superior Protection for Clean Engine Air Intake Systems (Part No.83456)

Air Filter: Superior Protection for Clean Engine Air Intake Systems

from

$402.99
Carquest Premium Primary Channel Flow Air Filters protect your equipment by preventing airborne contaminants, such as dust, dirt, and debris, from reaching your combustion chamber. The unique Channel Flow controlled pathways allow air to flow smoothly and efficiently through the filter media, helping optimize your engine performance. Carquest Premium Primary Channel Flow Air Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Channel Flow primary air filter
  • Latest design to comply with new emission standards
  • Compact design with high efficiency and extended capacity, while reducing restriction
  • Made in USA
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In-Demand Cabin Air Filters for 2021 Kenworth T800s

Select from 1 premium Cabin Air Filters parts for your 2021 Kenworth T800.

Carquest Premium – Cabin Air Filter: Improves Interior Air Quality and Comfort (Part No.93982)

Cabin Air Filter: Improves Interior Air Quality and Comfort

from

$88.99
Carquest Premium Cabin Air Filters help keep the air you breathe clean by preventing harmful airborne contaminants from entering your vehicle’s interior. Cabin air filters effectively filter the air entering through the HVAC system by capturing dust, pollen, mold spores, and other allergens. These filters help provide a more comfortable environment for passengers inside the vehicle. Carquest Premium Cabin Air Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
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Most Sold 2021 Kenworth T800 Oil Filters

Explore our best-selling Kenworth parts for the 2021 T800 among 3 OEM and aftermarket options starting from $102.99.

Carquest Premium – Oil Filter: Removes Oil Contaminants for Superior Engine Protection (Part No.95394)

Oil Filter: Removes Oil Contaminants for Superior Engine Protection

from

$136.99
Carquest Premium Oil Spin-on Filters protect your engine by removing contaminants, such as dirt, metal particles, and sludge, from your engine oil. These filters effectively remove contaminants that can cause significant wear and damage to critical engine components. The spin-on design screws directly onto a mounting head, allowing for easy servicing and replacement. By keeping the oil clean, these filters help ensure proper lubrication and cooling, reduce friction and help extend engine life. Carquest Premium Oil Spin-on Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
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Carquest Premium – Oil Filter: Removes Oil Contaminants for Superior Engine Protection (Part No.95398)

Oil Filter: Removes Oil Contaminants for Superior Engine Protection

from

$133.99
Carquest Premium Centrifugal Oil Filters protect your engine by using centrifugal force to spin oil and separate harmful contaminants like dirt, metal particles, and sludge from the oil. Unlike traditional filters that trap particles in the media, these filters continuously spin, removing contaminants without clogging. By preventing wear and damage to critical engine components, Centrifugal Oil Filters help extend engine life. Carquest Premium Centrifugal Oil Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).
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Carquest Premium – Oil Filter: Removes Oil Contaminants for Superior Engine Protection (Part No.95162)

Oil Filter: Removes Oil Contaminants for Superior Engine Protection

from

$102.99
Carquest Premium Oil Cartridge Filters protect your engine by removing contaminants, such as dirt, metal particles, and sludge, from your engine oil. These filters effectively remove contaminants that can cause significant wear and damage to critical engine components. The cartridge design installs in a housing, allowing for easy servicing and replacement. By keeping the oil clean, these filters help ensure proper lubrication and cooling, reduce friction and help extend engine life. Carquest Premium Oil Cartridge Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).

Product Features:
  • Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
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FAQs for 2021 Kenworth T800 Filters and PCVs

Which Filters and PCVs are best-sellers for 2021 Kenworth T800s?

Out of 14 Filters and PCVs that fit 2021 Kenworth T800s, the following parts are the top sellers:

What’s the price range for 2021 Kenworth T800 Filters and PCVs?

Filters and PCV prices for the 2021 Kenworth T800 start at $15.29 and go up to $402.99 for the most premium parts.

What’s the average price of a Filters and PCV for a 2021 Kenworth T800?

The average price for Filters and PCVs for the 2021 Kenworth T800 is $148.72. Keep in mind the variety of part types within our Filters and PCV category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Filters and PCVs for other Kenworth T800 model years?

Yes, we currently carry Filters and PCVs for 36 model years of Kenworth T800s between 1987 and 2024. Filters and PCVs are bought most frequently for the following model years: 2023, 2022, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Filters and PCVs for my 2021 Kenworth T800?

What types of Filters and PCVs do you sell for my 2021 Kenworth T800?

As of 11/2/25, these are some of the most in-demand types of Filters and PCVs for a 2021 Kenworth T800:

Can I get help with 2021 Kenworth T800 Filters and PCV orders?

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

What is your return policy for Kenworth T800 Filters and PCVs?

Advance Auto Parts keeps returns simple. For new Kenworth T800 Filters and PCVs and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.