2003 Western Star 4900EX Engine Parts
Find Your Specific 2003 Western Star 4900EX Engine Parts
Below you will find various in-demand Western Star Engine Parts, components and accessories for your 2003 4900EX. Advance Auto Parts has popular 4900EX parts like Camshafts, Turbochargers, Engine Blocks 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 2003 Western Star 4900EX Engine Parts below and start saving instantly.
Popular 2003 Western Star 4900EX Engine Parts Categories
Essential Engine Parts for 2003 Western Star 4900EXes
Rotomaster – Rotomaster Turbocharger Service Kit, H1560301N (Part No.H1560301N)
from
$292.99
Rotomaster Turbocharger Service Kits deliver a comprehensive, cost-effective solution for restoring turbo performance without replacing the full turbocharger. Designed for preventative maintenance and minor repairs, each kit includes the essential wear components required for a dependable rebuild, provided no internal damage exists. Built with O.E.-grade, direct-fit parts, these kits ensure accurate fitment, easy installation, and lasting durability. Installation should be performed using proper balancing equipment to ensure optimal performance. Ideal for professional technicians and experienced enthusiasts with the right tools, Rotomaster kits help reduce downtime, lower repair costs, and extend the life of your turbocharger. Perfect for diesel engines, commercial fleets, and passenger vehicles.
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Rotomaster – Rotomaster Turbocharger Service Kit, A1420307N (Part No.A1420307N)
from
$131.99
Rotomaster Turbocharger Service Kits deliver a comprehensive, cost-effective solution for restoring turbo performance without replacing the full turbocharger. Designed for preventative maintenance and minor repairs, each kit includes the essential wear components required for a dependable rebuild, provided no internal damage exists. Built with O.E.-grade, direct-fit parts, these kits ensure accurate fitment, easy installation, and lasting durability. Installation should be performed using proper balancing equipment to ensure optimal performance. Ideal for professional technicians and experienced enthusiasts with the right tools, Rotomaster kits help reduce downtime, lower repair costs, and extend the life of your turbocharger. Perfect for diesel engines, commercial fleets, and passenger vehicles.
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Dorman – HD Solutions – Dorman – HD Solutions Turbocharger Speed Sensor, 904-7240 (Part No.904-7240)
from
$250.99
This turbocharger speed sensor is designed to match the fit and function of the original sensor on specified vehicles, and is engineered for durability and reliable performance.
See More
Carquest Premium – Carquest HD Engine Oil Filler Plug, 10153 (Part No.10153)
from
$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.
See More
Carquest Premium – Carquest Engine Oil Filler Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack, 10136 (Part No.10136)
from
$5.99
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.
See More
Dorman – HD Solutions – Dorman – HD Solutions Camshaft Position Sensor, 904-7017 (Part No.904-7017)
from
$161.99
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.
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Walker Products – Walker Products Engine Camshaft Position Sensor, 1008-1014 (Part No.1008-1014)
from
$79.99
Walker Products began supplying the fuel system needs of the automotive industry in 1946. Today Walker is one of the largest, privately owned manufacturers of fuel system components and engine sensors, and has served the needs of the worldwide automotive aftermarket. We are committed to supplying products manufactured to meet or exceed OEM standards and specifications. This effort is backed by our own manufacturing, product management and engineering staff to ensure it is maintained and accurate in the production of quality parts, vehicle applications, instruction sheets and technical support. Our products include Carburetor and Fuel Injection Repair Kits, Oxygen Sensors and other Engine Management products such as Throttle Position Sensors, Cam and Crankshaft Sensors, Fuel Injectors, Spark Plug Wires and Gaskets. As an ISO 9001/IATF16949 certified company, we are committed to supplying the highest quality products. © 2022 Walker Products Inc. All rights reserved.
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Gates – Gates Green Stripe Ring Retained Straight Turbocharger Hose, 26203 (Part No.26203)
from
$116.99
Made for turbocharged Class 8 and heavy-duty diesel engines. Multi-hump design isolates vibration and absorbs rotational shock. Depending on application, hose is engineered with three or four rings to maintain design integrity.
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Gates – Gates Green Stripe Ring Retained Straight Turbocharger Hose, 26204 (Part No.26204)
from
$175.99
Made for turbocharged Class 8 and heavy-duty diesel engines. Multi-hump design isolates vibration and absorbs rotational shock. Depending on application, hose is engineered with three or four rings to maintain design integrity.
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Carquest Premium – Carquest Charge Air Cooler, 611281 (Part No.611281)
from
$1271.99
Founded in 1999, Reach is a worldwide leader in the manufacture and distribution of aftermarket cooling products. All our products are manufactured to meet the highest OE standards to fit most popular US truck makes, including Peterbilt, Mack, International, Isuzu, GMC, Ford, and Freightliner. Headquartered in Miami, Florida, Reach Cooling is fully committed in providing customers with only the best products, most competitive prices, and exceptional service.
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Carquest Premium – Carquest Charge Air Cooler, 611247 (Part No.611247)
from
$1591.99
Founded in 1999, Reach is a worldwide leader in the manufacture and distribution of aftermarket cooling products. All our products are manufactured to meet the highest OE standards to fit most popular US truck makes, including Peterbilt, Mack, International, Isuzu, GMC, Ford, and Freightliner. Headquartered in Miami, Florida, Reach Cooling is fully committed in providing customers with only the best products, most competitive prices, and exceptional service.
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Carquest Premium – Carquest Charge Air Cooler, 611282 (Part No.611282)
from
$2010.00
Founded in 1999, Reach is a worldwide leader in the manufacture and distribution of aftermarket cooling products. All our products are manufactured to meet the highest OE standards to fit most popular US truck makes, including Peterbilt, Mack, International, Isuzu, GMC, Ford, and Freightliner. Headquartered in Miami, Florida, Reach Cooling is fully committed in providing customers with only the best products, most competitive prices, and exceptional service.
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Carquest Premium – Carquest Charge Air Cooler, 611031 (Part No.611031)
Rotomaster – Rotomaster Turbocharger, A1470102N (Part No.A1470102N)
from
$1703.00
Rotomaster Heavy-Duty Turbochargers are engineered to meet the extreme performance demands of commercial and industrial fleets. Built to OE specifications and triple balanced for precision, each unit delivers consistent power, improved fuel efficiency, and long-term durability. Designed for easy, direct-fit installation, Rotomaster turbochargers help fleet managers minimize downtime and extend vehicle service life even under the harshest operating conditions.As turbocharger specialists, Rotomaster brings deep expertise to every unit. Rotomaster€™s technical support team is on-call to assist with installation, troubleshooting, and diagnostics, keeping your fleet moving with minimal downtime.With proven reliability and an industry-leading warranty, Rotomaster turbochargers deliver the performance and peace of mind your operation depends on.
See More
Rotomaster – Rotomaster Turbocharger, A1420107N (Part No.A1420107N)
from
$1922.00
Rotomaster Heavy-Duty Turbochargers are engineered to meet the extreme performance demands of commercial and industrial fleets. Built to OE specifications and triple balanced for precision, each unit delivers consistent power, improved fuel efficiency, and long-term durability. Designed for easy, direct-fit installation, Rotomaster turbochargers help fleet managers minimize downtime and extend vehicle service life even under the harshest operating conditions.As turbocharger specialists, Rotomaster brings deep expertise to every unit. Rotomaster€™s technical support team is on-call to assist with installation, troubleshooting, and diagnostics, keeping your fleet moving with minimal downtime.With proven reliability and an industry-leading warranty, Rotomaster turbochargers deliver the performance and peace of mind your operation depends on.
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Rotomaster – Rotomaster HD, A1550115N (Part No.A1550115N)
from
$1156.00
Rotomaster Heavy-Duty Turbochargers are engineered to meet the extreme performance demands of commercial and industrial fleets. Built to OE specifications and triple balanced for precision, each unit delivers consistent power, improved fuel efficiency, and long-term durability. Designed for easy, direct-fit installation, Rotomaster turbochargers help fleet managers minimize downtime and extend vehicle service life even under the harshest operating conditions.As turbocharger specialists, Rotomaster brings deep expertise to every unit. Rotomaster€™s technical support team is on-call to assist with installation, troubleshooting, and diagnostics, keeping your fleet moving with minimal downtime.With proven reliability and an industry-leading warranty, Rotomaster turbochargers deliver the performance and peace of mind your operation depends on.
See More
Rotomaster – Rotomaster Turbocharger, A1420101N (Part No.A1420101N)
from
$1200.00
Rotomaster Heavy-Duty Turbochargers are engineered to meet the extreme performance demands of commercial and industrial fleets. Built to OE specifications and triple balanced for precision, each unit delivers consistent power, improved fuel efficiency, and long-term durability. Designed for easy, direct-fit installation, Rotomaster turbochargers help fleet managers minimize downtime and extend vehicle service life even under the harshest operating conditions.As turbocharger specialists, Rotomaster brings deep expertise to every unit. Rotomaster€™s technical support team is on-call to assist with installation, troubleshooting, and diagnostics, keeping your fleet moving with minimal downtime.With proven reliability and an industry-leading warranty, Rotomaster turbochargers deliver the performance and peace of mind your operation depends on.
See More
Dorman – HD Solutions – Dorman – HD Solutions Turbocharger Speed Sensor, 904-7111 (Part No.904-7111)
from
$288.99
This turbocharger speed sensor is designed to match the fit and function of the original sensor on specified vehicles, and is engineered for durability and reliable performance.
See More
Dorman – HD Solutions – Dorman – HD Solutions Engine Oil Pan: Direct Fit, Fiberglass, Sump, 40 Quart, 264-5002 (Part No.264-5002)
from
$1034.00
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.
See More
Dorman – HD Solutions – Dorman – HD Solutions Engine Oil Pan: Direct Fit, Steel, Sump, 44 Quart, 264-6005 (Part No.264-6005)
from
$1043.00
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.
See More
Dorman – HD Solutions – Dorman – HD Solutions Engine Oil Pan: Direct Fit, Fiberglass, Sump, 40 Quart, 264-5097 (Part No.264-5097)
from
$1749.00
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.
See More
Walker Products – Walker Products Engine Crankshaft Position Sensor, 1008-1013 (Part No.1008-1013)
from
$59.99
Walker Products began supplying the fuel system needs of the automotive industry in 1946. Today Walker is one of the largest, privately owned manufacturers of fuel system components and engine sensors, and has served the needs of the worldwide automotive aftermarket. We are committed to supplying products manufactured to meet or exceed OEM standards and specifications. This effort is backed by our own manufacturing, product management and engineering staff to ensure it is maintained and accurate in the production of quality parts, vehicle applications, instruction sheets and technical support. Our products include Carburetor and Fuel Injection Repair Kits, Oxygen Sensors and other Engine Management products such as Throttle Position Sensors, Cam and Crankshaft Sensors, Fuel Injectors, Spark Plug Wires and Gaskets. As an ISO 9001/IATF16949 certified company, we are committed to supplying the highest quality products. © 2022 Walker Products Inc. All rights reserved.
See More
Dorman – HD Solutions – Dorman – HD Solutions Crankshaft Position Sensor, 904-7247 (Part No.904-7247)
from
$77.99
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.
See More
Dorman – HD Solutions – Dorman – HD Solutions Crankshaft Position Sensor, 904-7024 (Part No.904-7024)
from
$186.99
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.
See More
Upgrade your 2003 Western Star 4900EX with Top-Quality Engine Parts
When it comes to maintaining or upgrading your 2003 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 15 Engine Parts for the 2003 Western Star 4900EX, designed to meet your needs without breaking the bank.
From
Camshaft
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 2003 Western Star 4900EX at great prices.
Our Engine Parts inventory for this model
ranges from just $5.99 to $1,922.00, with
an average price of $868.23.
Our 15 Engine Parts in stock come from 5 trusted brands, so you’re sure to find the right part for your 2003 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 2003 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 2003 Western Star 4900EX!
Best-Selling Camshafts for 2003 Western Star 4900EXes
Enhance the driving experience in your Western Star with 1 quality Camshaft components, starting at $79.99.
Walker Products – Walker Products Engine Camshaft Position Sensor, 1008-1014 (Part No.1008-1014)
from
$79.99
Walker Products began supplying the fuel system needs of the automotive industry in 1946. Today Walker is one of the largest, privately owned manufacturers of fuel system components and engine sensors, and has served the needs of the worldwide automotive aftermarket. We are committed to supplying products manufactured to meet or exceed OEM standards and specifications. This effort is backed by our own manufacturing, product management and engineering staff to ensure it is maintained and accurate in the production of quality parts, vehicle applications, instruction sheets and technical support. Our products include Carburetor and Fuel Injection Repair Kits, Oxygen Sensors and other Engine Management products such as Throttle Position Sensors, Cam and Crankshaft Sensors, Fuel Injectors, Spark Plug Wires and Gaskets. As an ISO 9001/IATF16949 certified company, we are committed to supplying the highest quality products. © 2022 Walker Products Inc. All rights reserved.
See More
Most Popular 2003 Western Star 4900EX Turbochargers
Customize your Western Star with 4 Turbochargers products
like Turbochargers and Parts,
Turbo Pressure Sensors, and
Turbocharger Service Kits, all
priced under $1,922.00.
Dorman – HD Solutions – Dorman – HD Solutions Turbocharger Speed Sensor, 904-7240 (Part No.904-7240)
from
$250.99
This turbocharger speed sensor is designed to match the fit and function of the original sensor on specified vehicles, and is engineered for durability and reliable performance.
See More
Rotomaster – Rotomaster Turbocharger, A1420107N (Part No.A1420107N)
from
$1922.00
Rotomaster Heavy-Duty Turbochargers are engineered to meet the extreme performance demands of commercial and industrial fleets. Built to OE specifications and triple balanced for precision, each unit delivers consistent power, improved fuel efficiency, and long-term durability. Designed for easy, direct-fit installation, Rotomaster turbochargers help fleet managers minimize downtime and extend vehicle service life even under the harshest operating conditions.As turbocharger specialists, Rotomaster brings deep expertise to every unit. Rotomaster€™s technical support team is on-call to assist with installation, troubleshooting, and diagnostics, keeping your fleet moving with minimal downtime.With proven reliability and an industry-leading warranty, Rotomaster turbochargers deliver the performance and peace of mind your operation depends on.
See More
Rotomaster – Rotomaster Turbocharger, A1470102N (Part No.A1470102N)
from
$1703.00
Rotomaster Heavy-Duty Turbochargers are engineered to meet the extreme performance demands of commercial and industrial fleets. Built to OE specifications and triple balanced for precision, each unit delivers consistent power, improved fuel efficiency, and long-term durability. Designed for easy, direct-fit installation, Rotomaster turbochargers help fleet managers minimize downtime and extend vehicle service life even under the harshest operating conditions.As turbocharger specialists, Rotomaster brings deep expertise to every unit. Rotomaster€™s technical support team is on-call to assist with installation, troubleshooting, and diagnostics, keeping your fleet moving with minimal downtime.With proven reliability and an industry-leading warranty, Rotomaster turbochargers deliver the performance and peace of mind your operation depends on.
See More
Rotomaster – Rotomaster Turbocharger Service Kit, A1420307N (Part No.A1420307N)
from
$131.99
Rotomaster Turbocharger Service Kits deliver a comprehensive, cost-effective solution for restoring turbo performance without replacing the full turbocharger. Designed for preventative maintenance and minor repairs, each kit includes the essential wear components required for a dependable rebuild, provided no internal damage exists. Built with O.E.-grade, direct-fit parts, these kits ensure accurate fitment, easy installation, and lasting durability. Installation should be performed using proper balancing equipment to ensure optimal performance. Ideal for professional technicians and experienced enthusiasts with the right tools, Rotomaster kits help reduce downtime, lower repair costs, and extend the life of your turbocharger. Perfect for diesel engines, commercial fleets, and passenger vehicles.
See More
Top Picks for 2003 Western Star 4900EX Engine Blocks
Upgrade Western Star 4900EXes with top-quality Engine Blocks parts, including 2 OEM and aftermarket selections for your 2003 model.
Carquest Premium – Carquest Engine Oil Filler Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack, 10136 (Part No.10136)
from
$5.99
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.
See More
Carquest Premium – Carquest HD Engine Oil Filler Plug, 10153 (Part No.10153)
from
$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.
See More
In-Demand Engine Switches, Sensors and Relays for 2003 Western Star 4900EXes
Select from 2 premium Engine Switches, Sensors and Relays parts for your 2003 Western Star 4900EX, with prices ranging from $77.99 to $186.99.
Dorman – HD Solutions – Dorman – HD Solutions Crankshaft Position Sensor, 904-7024 (Part No.904-7024)
from
$186.99
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.
See More
Dorman – HD Solutions – Dorman – HD Solutions Crankshaft Position Sensor, 904-7247 (Part No.904-7247)
from
$77.99
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.
See More
Most Sold 2003 Western Star 4900EX Oil Pans
Explore our best-selling Western Star parts for the 2003 4900EX among 3 OEM and aftermarket options starting from $1,034.00.
Dorman – HD Solutions – Dorman – HD Solutions Engine Oil Pan: Direct Fit, Fiberglass, Sump, 40 Quart, 264-5097 (Part No.264-5097)
from
$1749.00
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.
See More
Dorman – HD Solutions – Dorman – HD Solutions Engine Oil Pan: Direct Fit, Steel, Sump, 44 Quart, 264-6005 (Part No.264-6005)
from
$1043.00
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.
See More
Dorman – HD Solutions – Dorman – HD Solutions Engine Oil Pan: Direct Fit, Fiberglass, Sump, 40 Quart, 264-5002 (Part No.264-5002)
from
$1034.00
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.
See More
FAQs for 2003 Western Star 4900EX Engine Parts
Which Engine Parts are best-sellers for 2003 Western Star 4900EXes?
Out of 15 Engine Parts that fit 2003 Western Star 4900EXes, the following parts are the top sellers:
- Carquest Engine Oil Filler Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack, 10136 (5020022) – $5.99
- Dorman – HD Solutions Turbocharger Speed Sensor, 904-7240 (11438384) – $250.99
- Carquest Charge Air Cooler, 611031 (50153363) – $1,168.99
What’s the price range for 2003 Western Star 4900EX Engine Parts?
Engine Part prices for the 2003 Western Star 4900EX start at $5.99 and go up to $1,922.00 for the most premium parts.
What’s the average price of a Engine Part for a 2003 Western Star 4900EX?
The average price for Engine Parts for the 2003 Western Star 4900EX is $868.23. 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?
What are the cheapest Engine Parts for my 2003 Western Star 4900EX?
The cheapest 2003 Western Star 4900EX Engine Parts we carry in stock are:
- Carquest Engine Oil Filler Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack, 10136 (5020022) – $5.99
- Carquest HD Engine Oil Filler Plug, 10153 (10980450) – $19.49
- Dorman – HD Solutions Crankshaft Position Sensor, 904-7247 (11438685) – $77.99
- Walker Products Engine Camshaft Position Sensor, 1008-1014 (50088432) – $79.99
- Gates Green Stripe Ring Retained Straight Turbocharger Hose, 26203 (10911430) – $116.99
What types of Engine Parts do you sell for my 2003 Western Star 4900EX?
As of 8/2/26, these are some of the most in-demand types of Engine Parts for a 2003 Western Star 4900EX:
Can I get help with 2003 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.
