2004 Western Star 4900EX Engine Parts

Below you will find various in-demand Western Star Engine Parts, components and accessories for your 2004 4900EX. Advance Auto Parts has popular 4900EX parts like Engine Blocks, Turbochargers, Engine Switches, Sensors and Relays and more. You’ll also find aftermarket and OEM Engine Parts for other 4900EX model years including 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 and more. Select a category of 2004 Western Star 4900EX Engine Parts below and start saving instantly.

Popular 2004 Western Star 4900EX Engine Parts Categories

Turbochargers and Parts

Camshaft Position Sensors

Crankshaft Position Sensors

Oil Pans

Oil Caps

Intercooler Connection Hoses

Turbocharger Service Kits

Essential Engine Parts for 2004 Western Star 4900EXes

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$1372.99

Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable replacement.

Product Features:

Direct replacement – this engine oil pan is made to match the original pan on specific vehicles.
Complete assembly – includes replacement pan and drain plugs to match original components
Durable design – high-strength coating prevents future corrosion
Trustworthy value – backed by team of engineers and quality control experts in the United States

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$1033.99

Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable replacement.

Product Features:

Direct replacement – this engine oil pan is made to match the original pan on specific vehicles.
Complete assembly – includes replacement pan and drain plugs to match original components
Durable design – high-strength coating prevents future corrosion
Trustworthy value – backed by team of engineers and quality control experts in the United States

from

$1748.99

Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable replacement.

Product Features:

Direct replacement – this engine oil pan is made to match the original pan on specific vehicles.
Complete assembly – includes replacement pan and drain plugs to match original components
Durable design – high-strength coating prevents future corrosion
Trustworthy value – backed by team of engineers and quality control experts in the United States

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$214.99

Turbocharger Kit

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$142.99

Rotomaster Turbocharger Service Kits provide all the wear items required to remanufacture a turbocharger that has not sustained any damage to the internal components. Featuring only O.E.-grade, direct-fit components, this kit offers a great, cost-effective way to perform a turbo repair without replacing the entire assembly.

Product Features:

Kit includes all serviceable components in one package for turbochargers without internal damage
Saves money by eliminating the need to replace the complete turbocharger assembly
Allows for reuse of the center, compressor and turbine housings
Only O.E.-grade component parts or better are supplied in kit for durability
Direct O.E. replacement

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$169.99

This engine crankshaft position sensor is designed to match the fit and function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage.

Product Features:

Direct replacement – this engine crankshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles.
Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
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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$75.99

Direct replacement – this engine crankshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles.
Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
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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$19.49

Manufactured from high quality components by an OE Supplier. Proper fit and sealing prevents oil loss. Designed to OEM specifications. High quality finish is designed to compliment the engine compartment appearance.

Product Features:

Provides proper seal to ensure leak prevention
Stops engine blow by
High quality construction
Meets all OEM specifications

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$5.99

Provides proper seal to ensure leak prevention
Stops engine blow by
High quality construction
Meets all OEM specifications

from

$148.99

Product Features:

Four-layer silicone construction with aramid fiber reinforcement for maximum durability
Meets or exceeds OEM specifications
Temperature Range: -60 Deg. F to +500 Deg. F (-51 Deg. C to +260 Deg. C)

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$116.99

Product Features:

Four-layer silicone construction with aramid fiber reinforcement for maximum durability
Meets or exceeds OEM specifications
Temperature Range: -60 Deg. F to +500 Deg. F (-51 Deg. C to +260 Deg. C)

from

$48.49

This engine camshaft position sensor is designed to match the fit and function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage.

Product Features:

Direct replacement – this engine camshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles
Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
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

from

$146.99

Direct replacement – this engine camshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles.
Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
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

from

$1921.99

Product Features:

100% dynamic balancing of compressor wheels, turbine shaft/wheel assemblies and complete rotating assembly guarantees proper operation and extends unit life.
Unit comes with the required gaskets and mounting hardware for easy installation.
Meets or exceeds O.E. performance.
Unit comes with a pre-lube syringe to ensure product protection during installation.
Manufactured with 100% new components and tested to ensure trouble-free operation

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$1407.99

Product Features:

100% dynamic balancing of compressor wheels, turbine shaft/wheel assemblies and complete rotating assembly guarantees proper operation and extends unit life.
Unit comes with the required gaskets and mounting hardware for easy installation.
Meets or exceeds O.E. performance.
Unit comes with a pre-lube syringe to ensure product protection during installation.
Manufactured with 100% new components and tested to ensure trouble-free operation

from

$1944.99

Product Features:

100% dynamic balancing of compressor wheels, turbine shaft/wheel assemblies and complete rotating assembly guarantees proper operation and extends unit life.
Unit comes with the required gaskets and mounting hardware for easy installation.
Meets or exceeds O.E. performance.
Unit comes with a pre-lube syringe to ensure product protection during installation.
Manufactured with 100% new components and tested to ensure trouble-free operation

from

$1155.99

Product Features:

100% dynamic balancing of compressor wheels, turbine shaft/wheel assemblies and complete rotating assembly guarantees proper operation and extends unit life.
Unit comes with the required gaskets and mounting hardware for easy installation.
Meets or exceeds O.E. performance.
Unit comes with a pre-lube syringe to ensure product protection during installation.
Manufactured with 100% new components and tested to ensure trouble-free operation

from

$871.99

Rotomaster 100% New Turbochargers meet the growing demand for maximum vehicle performance with optimal fuel efficiency. Every Rotomaster turbocharger has been designed and tested to guarantee O.E. fit and performance. Rotomaster is committed to getting your vehicle back on the road and back to peak performance with these brand-new, direct-replacement turbochargers.

Product Features:

100% dynamic balancing of compressor wheels, turbine shaft/wheel assemblies and complete rotating assembly guarantees proper operation and extends unit life.
Unit comes with the required gaskets and mounting hardware for easy installation.
Meets or exceeds O.E. performance.
Unit comes with a pre-lube syringe to ensure product protection during installation.
Manufactured with 100% new components and tested to ensure trouble-free operation.

Upgrade your 2004 Western Star 4900EX with Top-Quality Engine Parts

When it comes to maintaining or upgrading your 2004 Western Star 4900EX, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Western Star or enhancing its overall performance, Engine Parts are key to keeping your 4900EX functioning at its best. At Advance Auto Parts, we offer a wide selection of 11 Engine Parts for the 2004 Western Star 4900EX, designed to meet your needs without breaking the bank. From Engine Block replacements to Turbochargers 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 Engine Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Engine Parts for your 2004 Western Star 4900EX at great prices. Our Engine Parts inventory for this model ranges from just $19.49 to $1,944.99, with an average price of $698.62. Our 11 Engine Parts in stock come from 4 trusted brands, so you’re sure to find the right part for your 2004 Western Star 4900EX 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 Engine Part upgrades. Explore related part types like Batteries and Chargers, Fluids and Chemicals and more to make sure your 2004 Western Star 4900EX is always ready to roll. We’re committed to providing you with everything you need to keep your 4900EX in top shape, all in one place. Start shopping confidently below for your 2004 Western Star 4900EX!

Best-Selling Engine Blocks for 2004 Western Star 4900EXes

Enhance the driving experience in your Western Star with 1 quality Engine Block components, starting at $19.49.

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from

$19.49

Provides proper seal to ensure leak prevention
Stops engine blow by
High quality construction
Meets all OEM specifications

Top Picks for 2004 Western Star 4900EX Engine Switches, Sensors and Relays

Upgrade Western Star 4900EXes with top-quality Engine Switches, Sensors and Relays parts, including 2 OEM and aftermarket selections for your 2004 model.

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$169.99

Direct replacement – this engine crankshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles.
Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
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

from

$75.99

Direct replacement – this engine crankshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles.
Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
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

In-Demand Oil Pans for 2004 Western Star 4900EXes

Select from 2 premium Oil Pans parts for your 2004 Western Star 4900EX, with prices ranging from $1,033.99 to $1,748.99.

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from

$1748.99

Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable replacement.

Product Features:

Direct replacement – this engine oil pan is made to match the original pan on specific vehicles.
Complete assembly – includes replacement pan and drain plugs to match original components
Durable design – high-strength coating prevents future corrosion
Trustworthy value – backed by team of engineers and quality control experts in the United States

from

$1033.99

Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable replacement.

Product Features:

Direct replacement – this engine oil pan is made to match the original pan on specific vehicles.
Complete assembly – includes replacement pan and drain plugs to match original components
Durable design – high-strength coating prevents future corrosion
Trustworthy value – backed by team of engineers and quality control experts in the United States

Most Sold 2004 Western Star 4900EX Camshafts

Explore our best-selling Western Star parts for the 2004 4900EX among 1 OEM and aftermarket options starting from $146.99.

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from

$146.99

Direct replacement – this engine camshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles.
Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
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

FAQs for 2004 Western Star 4900EX Engine Parts

Which Engine Parts are best-sellers for 2004 Western Star 4900EXes?

Out of 11 Engine Parts that fit 2004 Western Star 4900EXes, the following parts are the top sellers:

Camshaft Position Sensor (11438638) – $146.99
Crankshaft Position Sensor (11438685) – $75.99
Crankshaft Position Sensor (11438687) – $169.99

What’s the price range for 2004 Western Star 4900EX Engine Parts?

Engine Part prices for the 2004 Western Star 4900EX start at $19.49 and go up to $1,944.99 for the most premium parts.

What’s the average price of a Engine Part for a 2004 Western Star 4900EX?

The average price for Engine Parts for the 2004 Western Star 4900EX is $698.62. Keep in mind the variety of part types within our Engine Part category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Parts for other Western Star 4900EX model years?

Yes, we currently carry Engine Parts for 20 model years of Western Star 4900EXes between 2002 and 2022. Engine Parts are bought most frequently for the following model years: 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, and 2009.

What are the cheapest Engine Parts for my 2004 Western Star 4900EX?

The cheapest 2004 Western Star 4900EX Engine Parts we carry in stock are:

HD Engine Oil Filler Plug (10980450) – $19.49
Crankshaft Position Sensor (11438685) – $75.99
Green Stripe½ Ring Retained Straight Turbocharger Hose (10911430) – $116.99
Turbocharger Service Kit (12102162) – $142.99
Camshaft Position Sensor (11438638) – $146.99

What types of Engine Parts do you sell for my 2004 Western Star 4900EX?

As of 2/5/25, these are some of the most in-demand types of Engine Parts for a 2004 Western Star 4900EX:

Can I get help with 2004 Western Star 4900EX Engine Part orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Western Star Engine Parts and more.

What is your return policy for Western Star 4900EX Engine Parts?

Advance Auto Parts keeps returns simple. For new Western Star 4900EX Engine Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

2004 Western Star 4900EX Engine Parts

Dorman – HD Solutions – Engine Oil Pan: Direct Fit, Steel, Front Sump, 44 Quart (Part No.264-6005)

Dorman – HD Solutions – Engine Oil Pan: Direct Fit, Fiberglass, Rear Sump, 40 Quart (Part No.264-5002)

Dorman – HD Solutions – Engine Oil Pan: Direct Fit, Fiberglass, Rear Sump, 40 Quart (Part No.264-5097)

Rotomaster – Turbocharger Kit (Part No.H1560301N)

Rotomaster – Turbocharger Service Kit (Part No.A1420307N)

Dorman – HD Solutions – Crankshaft Position Sensor (Part No.904-7024)

Dorman – HD Solutions – Crankshaft Position Sensor (Part No.904-7247)

Carquest Premium – HD Engine Oil Filler Plug (Part No.10153)

Carquest Premium – Engine Oil Filler Cap: 10136, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10136)

Gates – Green Stripe½ Ring Retained Straight Turbocharger Hose (Part No.26204)

Gates – Green Stripe½ Ring Retained Straight Turbocharger Hose (Part No.26203)

Dorman – HD Solutions – Camshaft Position Sensor (Part No.904-7132)

Dorman – HD Solutions – Camshaft Position Sensor (Part No.904-7017)

Rotomaster – Turbocharger (Part No.A1420107N)

Rotomaster – Turbocharger (Part No.A1420101N)

Rotomaster – Turbocharger (Part No.A1420110N)

Rotomaster – Turbocharger (Part No.A1550115N)

Rotomaster – New Turbocharger (Part No.A1550111N)

Carquest Premium – HD Engine Oil Filler Plug (Part No.10153)

Rotomaster – Turbocharger (Part No.A1420110N)

Rotomaster – Turbocharger (Part No.A1420107N)

Rotomaster – Turbocharger Service Kit (Part No.A1420307N)

Dorman – HD Solutions – Crankshaft Position Sensor (Part No.904-7024)

Dorman – HD Solutions – Crankshaft Position Sensor (Part No.904-7247)

Dorman – HD Solutions – Engine Oil Pan: Direct Fit, Fiberglass, Rear Sump, 40 Quart (Part No.264-5097)

Dorman – HD Solutions – Engine Oil Pan: Direct Fit, Fiberglass, Rear Sump, 40 Quart (Part No.264-5002)

Dorman – HD Solutions – Camshaft Position Sensor (Part No.904-7017)