Workhorse W21 Parts

Workhorse W21 Transmission Parts

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$24.99

Made of quality materials, this automatic transmission oil cooler line connector matches the fit and function of a damaged original equipment connector to restore leak-free performance between the transmission and the oil cooler.

Product Features:

Quality replacement – this transmission cooler connector matches the fit and function of the original equipment connector.
Durable construction – this oil cooler line connector is made of quality materials for a precise fit and leak-free durability.
Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
Ideal shop supply – this connector is recommended to have on hand any time service is being performed on the transmission oil cooler line

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$22.99

Quality replacement – this transmission cooler connector matches the fit and function of the original equipment connector
Durable construction – this oil cooler line connector is made of quality materials for a precise fit and leak-free durability
Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
Ideal shop supply – this connector is recommended to have on hand any time service is being performed on the transmission oil cooler line

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$62.99

Quality replacement – this transmission cooler connector matches the fit and function of the original equipment connector.
Durable construction – this oil cooler line connector is made of quality materials for a precise fit and leak-free durability
Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
Ideal shop supply – this connector is recommended to have on hand any time service is being performed on the transmission oil cooler line

Workhorse W21 Engine Parts

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$28.49

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:

DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM — Proprietary cork-rubber formulation
SUPERIOR SEAL — Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road

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$4289.99

Remanufactured Engines are fully disassembled; heads, blocks, cranks & cams are machined & wear parts are replaced. Each engine is individually tested after assembly to assure compression, oil pressure and water jacket integrity.

Product Features:

Each engine we remanufacture is essentially reverse engineered – in part to discover original factory deficiencies. If possible, our seasoned R&D personnel & QC experts make improvements. Why shouldn’t our engine last longer than your first?
Engines come with installation gasket set & oil pump unless noted otherwise. If we have important installation information it will be included on tags or in the paperwork packaged with your engine.
Engines are securely packaged in a recyclable container that will also protect your core on the return trip. Our nationwide warehouse network means speedy delivery.
Each engine is remanufactured with quality OE level components not “white” box generic parts that may or may not satisfy your needs and expectations. When you use the best you get the best results and satisfaction.

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$619.99

Remanufactured Cylinder Heads are complete rebuild & include new valve stem seals, soft plugs & verified camshafts. All threads are checked and repaired if necessary. Cylinder Heads are packaged in heavy plastic to protect the unit.

Product Features:

All cylinder heads are both vacuum and pressure tested to verify valve seating, & integrity of water passages.
All cylinder heads are packaged in environmentally safe and recyclable containers that are the perfect size for returning your original core
All threads and machined surfaces are and repaired with technology that exceeds the original metal
Non-sealing iron surfaces painted to prevent oxidization

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$619.99

All cylinder heads are both vacuum and pressure tested to verify valve seating, & integrity of water passages.
All cylinder heads are packaged in environmentally safe and recyclable containers that are the perfect size for returning your original core
All threads and machined surfaces are and repaired with technology that exceeds the original metal
Non-sealing iron surfaces painted to prevent oxidization

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$14.99

This engine oil filter cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this engine oil filter cap is designed to match the fit and function of the original cap on specified vehicles.
Restores functionality – reliable replacement for an original part that is missing or cracked due to heat and fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$37.49

Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM — Proprietary cork-rubber formulation
SUPERIOR SEAL — Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road

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$39.49

This engine oil cooler line connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:

Direct replacement – this engine oil cooler line connector matches the appearance and function of the factory hardware on specified applications.
Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$12.99

Direct replacement – this engine oil cooler line connector matches the appearance and function of the factory hardware on specified applications.
Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue.
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$2.29

This engine camshaft plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

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

Workhorse W21 Exhaust Parts

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$21.99

This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles, and is made from quality materials for reliable performance.

Product Features:

Direct replacement – this exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles.
Ideal solution – this kit is a reliable replacement for the original hardware that is missing or damaged, or has failed
Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$84.99

Vibe Lock Header Bolt Kit

Looking for the best Workhorse W21 aftermarket replacement parts? Replacing worn and broken parts on your Workhorse W21? Check out our online catalog to find the best selection of aftermarket Workhorse W21 parts as well as real user reviews on Workhorse W21 replacement parts. Make an informed decision about every component you add to your W21.

At Advance Auto, we’ve got you covered when it comes to getting your Workhorse W21 in tip top condition. We’ve got over 79 Workhorse W21 parts to choose from in popular categories like Performance and Racing Products, Transmission Parts and Engine Parts. If you’re looking for the best prices, try searching our Workhorse W21 parts catalog to compare OEM and aftermarket parts for your Workhorse W21.

Whether you need Workhorse W21 body parts, interior components, or custom Workhorse W21 parts you can find them online at Advance Auto. Want to order your Exhaust Parts online? Or maybe you need your Workhorse Air Intakes same day? No problem, you can pick up W21 parts in person at locations across the country, or have them delivered to straight to your door after ordering online. Finding a great deal on new and used Workhorse W21 parts has never been easier.

Advance Auto customers frequently search for the following types of Workhorse W21 auto parts. Check out customer reviews and ratings, and compare prices on the following Workhorse W21 parts:

People also search Advance Auto for these popular years of the Workhorse W21:

Workhorse W21 Parts

Top Workhorse W21 Parts Categories

Workhorse W21 Transmission Parts

Dorman – Transmission Connector for 5/8 In. Tube 7/8-14 UNF (Part No.800-613)

Dorman – Transmission Fitting (Part No.800-728)

Dorman – HD Solutions – Transmission Fitting (Part No.800-5603)

Workhorse W21 Engine Parts

Felpro – Engine Valve Cover Gasket Set (Part No.VS 50554 R)

Spartan – Engine Long Block; CHEV 8.1/496 04-06 Engine (Part No.DCWE)

Spartan – Engine Cylinder Head; Chev 8.1/496 01-06 RGT Head (Part No.2CW2R)

Spartan – Engine Cylinder Head; Chev 8.1/496 01-06 LFT Head (Part No.2CW2L)

Dorman – Help – Engine Oil Filler Cap (Part No.42315)

Felpro – Engine Oil Pan Gasket Set PermaDry molded rubber (Part No.OS 30714 R)

Dorman – HD Solutions – Oil Cooler Line Connector (Part No.800-5602)

Dorman – Oil Cooler Line Connector (Part No.800-712)

Dorman – Steel Cup Expansion Plug 2-7/31 In. SC, Height 0.260 (Sold by each) (Part No.555-081)

Workhorse W21 Exhaust Parts

Dorman – Help – Exhaust Manifold Hardware Kit (Part No.32121)

Taylor Gaskets – Vibe Lock Header Bolt Kit (Part No.310070)

Search Over 79 Workhorse W21 Parts Online for Delivery or Pick Up

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