2005 Workhorse Custom Chassis P42 Engine Gaskets and Seals

Keep Your 2005 Workhorse Custom Chassis P42 in Top Shape with Quality Engine Gaskets and Seals

Whether you’re repairing or upgrading your Engine Gaskets and Seal, using high-quality parts is key to keeping your 2005 Workhorse Custom Chassis P42 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Valve Cover Gaskets, Rear Main Seal Sets, and Oil Pan Gaskets. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Engine Gaskets and Seals from Trusted Brands

Looking for a reliable Engine Gaskets and Seal? We’ve got you covered with options from brands you know and trust like Dorman and FELPRO. For example, Dorman Engine Gaskets and Seals start at just $11.49 with an average 4.2 star rating. FELPRO offer similar pricing and quality, backed by strong customer feedback. With over 118 reviews and a solid 5 star average, you can shop with confidence knowing other Workhorse Custom Chassis P42 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2005 Workhorse Custom Chassis P42 Engine Gaskets and Seal at Advance Auto Parts is around $78.79, with a range that starts at $11.49 and goes up to $203.99. With 8 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Engine Valve Cover Gasket Set, Engine Valve Cover Gasket Set, and VALVE COVER GASKET SET start at just $22.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Gaskets and Seal, don’t forget to check out other key components like Engine Timing Parts and Oil Pumps. At Advance Auto Parts, we’re here to help you keep your 2005 Workhorse Custom Chassis P42 in peak condition, inside and out.

Essential 2005 Workhorse Custom Chassis P42 Engine Gaskets and Seals

Dorman – Help – Coolant Bypass Seals (Part No.56390)

Coolant Bypass Seals

from

$11.49
This engine coolant water bypass gasket is designed to match the fit and function of the original gasket on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this engine coolant water bypass gasket is designed to match the fit and function of the original gasket on specified vehicles
  • Restores functionality – this gasket is made to fit and fully restore functionality after the original part fails
  • 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
See More

Felpro – Engine Valve Cover Gasket Set (Part No.VS 50681)

Engine Valve Cover Gasket Set

from

$64.99
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
See More

Felpro – Engine Valve Cover Gasket Set (Part No.VS 50088 R)

Engine Valve Cover Gasket Set

from

$34.99
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
See More

Felpro – Engine Valve Cover Gasket Set (Part No.VS 50684 R)

Engine Valve Cover Gasket Set

from

$99.99
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
See More

Dorman – Silicone Valve Cover Gasket Set: Exact Fit, 2 Pieces (Part No.904-171)

Silicone Valve Cover Gasket Set: Exact Fit, 2 Pieces

from

$136.99
This valve cover gasket is designed to match the fit, function and performance of an original equipment gasket on specified vehicles. Made of durable materials, it is engineered to help ensure a long-lasting seal under extreme underhood conditions.

Product Features:
  • Direct replacement – this valve cover gasket is designed to match the fit, function and performance of an original equipment gasket on specified vehicles
  • Ideal solution – engineered to help ensure a secure seal when an original gasket is due for service or damaged
  • 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
See More

Felpro – Engine Valve Cover Gasket Set (Part No.VS 50228 C)

Engine Valve Cover Gasket Set

from

$22.99
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
See More

Felpro – VALVE COVER GASKET SET (Part No.VS 50821 R)

VALVE COVER GASKET SET

from

$203.99
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
See More

Dorman – Main Seal Cover Kit (Part No.635-518)

Main Seal Cover Kit

from

$83.99
This direct replacement rear main seal cover kit matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.

Product Features:
  • Direct replacement – this rear main seal cover kit matches the factory design, and includes a new gasket, installation hardware, and an updated seal design for superior leak prevention
  • Durable construction – the timing cover in this kit is made of die-cast aluminum for a leak-free fit and durability
  • Convenient solution – this kit includes a new gasket and installation hardware for a complete repair
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
See More

Felpro – Engine Oil Pan Gasket Set – PermaDry molded rubber, Oil Pan SnapUps Included (Part No.OS 34500 R)

Engine Oil Pan Gasket Set - PermaDry molded rubber, Oil Pan SnapUps Included

from

$43.99
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
  • SUPERIOR SEAL – Manufactured with rubber compounds to ensure a consistent and long-life seal across the entire oil pan
  • PREVENTS OVERTIGHTENING – Torque limiters help eliminate overtightening and gasket splitting and extruding (where applicable)
  • OE-STYLE REPLACEMENT GASKET – Engineered for OE-style molded rubber gasket replacement
  • EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
  • ENGINEERING EXPERTISE – Parts are designed, tested, validated and approved by Fel-Pro engineers through rigorous research and development
See More

Felpro – Engine Oil Pan Gasket Set – PermaDry molded rubber (Part No.OS 30693 R)

Engine Oil Pan Gasket Set - PermaDry molded rubber

from

$67.99
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
  • SUPERIOR SEAL – Manufactured with rubber compounds to ensure a consistent and long-life seal across the entire oil pan
  • PREVENTS OVERTIGHTENING – Torque limiters help eliminate overtightening and gasket splitting and extruding (where applicable)
  • OE-STYLE REPLACEMENT GASKET – Engineered for OE-style molded rubber gasket replacement
  • EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
  • ENGINEERING EXPERTISE – Parts are designed, tested, validated and approved by Fel-Pro engineers through rigorous research and development
See More

Most Popular Valve Cover Gaskets for 2005 Workhorse Custom Chassis P42s

Enhance your 2005 Workhorse Custom Chassis P42 with one of the 5 Valve Cover Gaskets we have in stock, starting at just $22.99.

Felpro – Engine Valve Cover Gasket Set (Part No.VS 50228 C)

Engine Valve Cover Gasket Set

from

$22.99
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
See More

Felpro – Engine Valve Cover Gasket Set (Part No.VS 50681)

Engine Valve Cover Gasket Set

from

$64.99
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
See More

Felpro – VALVE COVER GASKET SET (Part No.VS 50821 R)

VALVE COVER GASKET SET

from

$203.99
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
See More

Felpro – Engine Valve Cover Gasket Set (Part No.VS 50684 R)

Engine Valve Cover Gasket Set

from

$99.99
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
See More

Dorman – Silicone Valve Cover Gasket Set: Exact Fit, 2 Pieces (Part No.904-171)

Silicone Valve Cover Gasket Set: Exact Fit, 2 Pieces

from

$136.99
This valve cover gasket is designed to match the fit, function and performance of an original equipment gasket on specified vehicles. Made of durable materials, it is engineered to help ensure a long-lasting seal under extreme underhood conditions.

Product Features:
  • Direct replacement – this valve cover gasket is designed to match the fit, function and performance of an original equipment gasket on specified vehicles
  • Ideal solution – engineered to help ensure a secure seal when an original gasket is due for service or damaged
  • 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
See More

Best-Selling 2005 Workhorse Custom Chassis P42 Rear Main Seal Set

Upgrade your P42 with our best-selling Rear Main Seal Set with a 5 Starts rating across 19 reviews.

Dorman – Main Seal Cover Kit (Part No.635-518)

Main Seal Cover Kit

from

$83.99
This direct replacement rear main seal cover kit matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.

Product Features:
  • Direct replacement – this rear main seal cover kit matches the factory design, and includes a new gasket, installation hardware, and an updated seal design for superior leak prevention
  • Durable construction – the timing cover in this kit is made of die-cast aluminum for a leak-free fit and durability
  • Convenient solution – this kit includes a new gasket and installation hardware for a complete repair
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
See More

Top-Quality Oil Pan Gaskets for 2005 Workhorse Custom Chassis P42s

Choose a high-quality OEM or aftermarket Oil Pan Gasket for Workhorse Custom Chassis P42s and enjoy top-notch performance from $67.99.

Felpro – Engine Oil Pan Gasket Set – PermaDry molded rubber (Part No.OS 30693 R)

Engine Oil Pan Gasket Set - PermaDry molded rubber

from

$67.99
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
  • SUPERIOR SEAL – Manufactured with rubber compounds to ensure a consistent and long-life seal across the entire oil pan
  • PREVENTS OVERTIGHTENING – Torque limiters help eliminate overtightening and gasket splitting and extruding (where applicable)
  • OE-STYLE REPLACEMENT GASKET – Engineered for OE-style molded rubber gasket replacement
  • EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
  • ENGINEERING EXPERTISE – Parts are designed, tested, validated and approved by Fel-Pro engineers through rigorous research and development
See More

Our Top Pick for a 2005 Workhorse Custom Chassis P42 Water Connection Gasket

Invest in a durable Water Connection Gasket for your 2005 Workhorse Custom Chassis, knowing you’re getting trusted brands and expert craftsmanship.

Dorman – Help – Coolant Bypass Seals (Part No.56390)

Coolant Bypass Seals

from

$11.49
This engine coolant water bypass gasket is designed to match the fit and function of the original gasket on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this engine coolant water bypass gasket is designed to match the fit and function of the original gasket on specified vehicles
  • Restores functionality – this gasket is made to fit and fully restore functionality after the original part fails
  • 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
See More

Top-Rated Engine Gaskets and Seal Brands For Your 2005 Workhorse Custom Chassis P42

When it comes to finding the perfect Engine Gaskets and Seal for your 2005 Workhorse Custom Chassis P42, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Engine Gaskets and Seal brands including FELPRO and Dorman, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $11.49. Purchasing a Engine Gaskets and Seal from us here at Advance Auto Parts is a smart move for both you and your 2005 Workhorse Custom Chassis P42, providing peace of mind with parts that meet or exceed OEM standards.

Popular FELPRO 2005 Workhorse Custom Chassis P42 Engine Gaskets and Seals

If you’re looking for a top-quality Engine Gaskets and Seal for your 2005 Workhorse Custom Chassis P42, Advance Auto Parts has exactly what you need with our selection of FELPRO Engine Gaskets and Seals. We have 1 FELPRO Engine Gaskets and Seals in stock for this fitment, all known for their durability and precision fit. With prices starting at just $67.99, you’ll find the perfect Engine Gaskets and Seal for your needs and budget. FELPRO Engine Gaskets and Seals for the 2005 Workhorse Custom Chassis P42 come highly rated, with over 74 customer reviews and an impressive average rating of 4.6 stars. Choosing a FELPRO Engine Gaskets and Seal from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Engine Oil Pan Gasket Set - PermaDry molded rubber
from $67.99
(74)
Engine Oil Pan Gasket Set – PermaDry molded rubber
“This is a great gasket well worth the extra money.”

Top-Quality Dorman 2005 Workhorse Custom Chassis P42 Engine Gaskets and Seals

For those in search of a high-quality Engine Gaskets and Seal for their 2005 Workhorse Custom Chassis P42, Advance Auto Parts offers a great selection of Dorman Engine Gaskets and Seals. With 2 Dorman Engine Gaskets and Seals in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Gaskets and Seals start at just $11.49, with an average price of $47.74, giving you a range of options to suit your budget. Backed by over 22 customer ratings and an average rating of 4.2 stars, Dorman Engine Gaskets and Seals provide both reliability and excellent performance. Choosing a Dorman Engine Gaskets and Seal from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Main Seal Cover Kit
from $83.99
(19)
Main Seal Cover Kit
“Good quality”
Coolant Bypass Seals
from $11.49
(3)
Coolant Bypass Seals
“I noticed my coolant steam bypass tube was leaking slightly so I bought these gaskets to replace the factory ones before it got really bad. 06 Chev”

FAQs for 2005 Workhorse Custom Chassis P42 Engine Gaskets and Seals

What are the best-selling Engine Gaskets and Seals for 2005 Workhorse Custom Chassis P42s?

Out of 8 Engine Gaskets and Seals that fit 2005 Workhorse Custom Chassis P42s, the following parts are the top sellers:

What’s the price range for 2005 Workhorse Custom Chassis P42 Engine Gaskets and Seals?

The prices of Engine Gaskets and Seals for the 2005 Workhorse Custom Chassis P42 range from $11.49 up to $203.99 for the most premium parts.

What is the average price of an Engine Gaskets and Seal for a 2005 Workhorse Custom Chassis P42?

The average price for Engine Gaskets and Seals for the 2005 Workhorse Custom Chassis P42 is $78.79. Keep in mind the variety of part types within our Engine Gaskets and Seal category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Gaskets and Seals for other Workhorse Custom Chassis P42 model years?

Yes, we carry Engine Gaskets and Seals for 5 model years of Workhorse Custom Chassis P42s between 1999 and 2004. The following model years are the most popular for Engine Gaskets and Seal purchases: 2004, 2003, 1999, 2001, 2000, and 2002.

What are the cheapest Engine Gaskets and Seals for my 2005 Workhorse Custom Chassis P42?

The cheapest 2005 Workhorse Custom Chassis P42 Engine Gaskets and Seals we carry are:

Does Advance Auto Parts sell Engine Gaskets and Seals for any other 2005 Workhorse Custom Chassis models?

Yes. We stock Engine Gaskets and Seals for 3 other popular 2005 Workhorse Custom Chassis models. Some of the most popular are 2005 P32 Engine Gaskets and Seals, 2005 W22 Engine Gaskets and Seals, 2005 W24 Engine Gaskets and Seals, and 2005 W52 Engine Gaskets and Seals.

What are the top-rated Engine Gaskets and Seals that fit the 2005 Workhorse Custom Chassis P42?

Based on 118 reviews by customers, our 2005 Workhorse Custom Chassis P42 Engine Gaskets and Seals have an average customer rating of 5 stars. These are the highest-rated categories of Engine Gaskets and Seals for the 2005 Workhorse Custom Chassis P42 and their top-rated products:

What types of Engine Gaskets and Seals do you sell for my 2005 Workhorse Custom Chassis P42?

As of 11/2/25, these are some of the most in-demand types of Engine Gaskets and Seals for a 2005 Workhorse Custom Chassis P42:

Can I get help with 2005 Workhorse Custom Chassis P42 Engine Gaskets and Seal orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Workhorse Custom Chassis Engine Gaskets and Seals and more.

What is your return policy for Workhorse Custom Chassis P42 Engine Gaskets and Seals?

Advance Auto Parts keeps returns simple. For new Workhorse Custom Chassis P42 Engine Gaskets and Seals and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.