2003 Western Star 4900EX Diesel Emission Parts
Keep Your 2003 Western Star 4900EX in Top Shape with a Quality Diesel Emission Part
When it comes to maintaining or upgrading your 2003 Western Star 4900EX, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Diesel Emission Part for your 4900EX. We currently carry a top Diesel Emission Part in stock that is built to last. Whether you’re replacing a damaged Diesel Emission Part or looking to upgrade, our selection for the 2003 Western Star 4900EX ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.
Explore Related Parts
And while you’re here, don’t forget to check out related part categories like Fuel Injectors and Fuel Pumps to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 2003 Western Star 4900EX running smoothly and looking great.
Find Your Specific 2003 Western Star 4900EX Diesel Emission Parts
Looking for the perfect Diesel Emission Part for your 2003 Western Star 4900EX? You’re in the right place. Below, you’ll find a Diesel Emission Part from a trusted manufacturer that is a perfect fit for your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Diesel Emission Parts, ensuring durability and a precise fit for your Western Star 4900EX. Whether you’re driving a 2003 model or another popular model year like
2012,
2013,
2014,
2015,
2016,
2017,
2018,
2019, and
2020, we’ve got you covered. Purchasing Diesel Emission Parts from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Diesel Emission Parts that fit your vehicle.
Popular 2003 Western Star 4900EX Diesel Emission Parts Categories
Most Popular Diesel Exhaust Fluid (DEF) Urea Filter for 2003 Western Star 4900EXes
Enhance your 2003 Western Star 4900EX with this popular Diesel Exhaust Fluid (DEF) Urea Filter we have in stock, for $108.99.
Carquest Premium – Diesel Exhaust Fluid Filter for SCR Systems (Part No.96679)
from
$108.99
Carquest Premium Diesel Exhaust Fluid (DEF) Filters help reduce harmful emissions and improve air quality. DEF filters remove impurities such as dirt, debris, and particulates from the diesel exhaust fluid before entering your vehicle’s emission control system. These filters allow clean fluid to break down harmful nitrogen oxide (NOx) gases produced during diesel combustion. By ensuring proper DEF flow and helping protect system components, DEF filters help diesel engines meet strict emission standards. Carquest Premium Diesel Exhaust Fluid (DEF) Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).
Product Features:
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Product Features:
- Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
- Contains Plug and Filter Removal Tool
FAQs for 2003 Western Star 4900EX Diesel Emission Parts
What’s the price range for 2003 Western Star 4900EX Diesel Emission Parts?
We currently have just one Diesel Emission Parts for the 2003 Western Star 4900EX in stock: Diesel Exhaust Fluid Filter for SCR Systems and it costs $108.99.
Does Advance Auto Parts sell Diesel Emission Parts for other Western Star 4900EX model years?
Does Advance Auto Parts sell Diesel Emission Parts for any other 2003 Western Star models?
Yes. We stock Diesel Emission Parts for 1 other popular 2003 Western Star models. Some of the most popular are 2003 4900FA Diesel Emission Parts and 2003 4900SA Diesel Emission Parts.
What types of Diesel Emission Parts do you sell for my 2003 Western Star 4900EX?
We currently have just 1 Diesel Emission Part in stock for a 2003 Western Star 4900EX, and as of 11/2/25, it is a Diesel Exhaust Fluid (DEF) Urea Filter.
Can I get help with 2003 Western Star 4900EX Diesel Emission 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 Diesel Emission Parts and more.
What is your return policy for Western Star 4900EX Diesel Emission Parts?
Advance Auto Parts keeps returns simple. For new Western Star 4900EX Diesel Emission Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.