Bosal 079-4058 Catalytic Converter - Right

Bosal Direct-Fit Catalytic Converter for Expedition

The Bosal BRExhaust Federal Direct-Fit Premium Load OBDII Catalytic Converter is built for 2003-2004 Ford Expedition right-side applications. It combines stainless steel construction with a ceramic substrate and a direct-fit layout for a clean replacement on Federal/EPA emissions systems.

Part number 079-4058 is engineered for bolt-on installation and is intended to help keep the check engine light off while maintaining compliance with Federal OBDII EPA standards. For Ford Expedition owners needing a right-side catalytic converter replacement, 079-4058 provides a vehicle-specific fitment solution.

Key Features

• Direct-fit catalytic converter for 2003-2004 Ford Expedition, right
• Stainless steel body and finish for corrosion resistance
• Ceramic substrate material
• Bolt-on inlet attachment for straightforward replacement
• Federal / EPA compliant design for OBDII applications
• BRExhaust Premium Load series construction
• Part number 079-4058

Product Details

Bosal’s BRExhaust Federal Direct-Fit Premium Load OBDII Catalytic Converter line is focused on replacement fitment for vehicles that follow Federal emissions standards. This converter is built with stainless steel for durability and a ceramic substrate for emissions control performance. The direct-fit configuration is made to match the original installation style on the Ford Expedition, reducing the need for fabrication during replacement. If you are searching for a 2003 Ford Expedition right catalytic converter or a 2004 Ford Expedition right catalytic converter, 079-4058 is the listed application.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Can Address

• Failed catalytic converter emissions testing
• Check engine light related to catalyst efficiency codes
• Restricted exhaust flow from a worn converter
• Corrosion damage to the original exhaust component
• Need for a direct replacement on a Ford Expedition right-side exhaust position

Installation Notes

Fits 2003-2004 Ford Expedition, right. The bolt-on direct-fit design supports replacement without cutting, welding, or fabrication. Verify the vehicle’s emissions configuration and right-side placement before installation. Part number 079-4058 should be matched to the confirmed application before purchase.

Quality Assurance

Bosal BRExhaust converters are built with stainless steel construction and are engineered for Federal/EPA OBDII emissions applications. The Premium Load line is designed around direct-fit replacement requirements for consistent installation and emissions compliance on the listed Ford Expedition application.