MagnaFlow 339109 Catalytic Converter - Rear

Overview of MagnaFlow 3in. Universal California Pre-OBDII Catalytic Converter

The MagnaFlow 3in. Universal California Pre-OBDII Catalytic Converter (Part Number 339109) is designed for universal fitment on select Chevrolet, Dodge, and GMC vehicles. Engineered with durable stainless steel and a ceramic substrate, this catalytic converter meets California emissions standards for pre-OBDII applications.

• Universal fit for Chevrolet, Dodge, and GMC models including Astro, Blazer, Dakota, Tahoe, and Yukon
• 3-inch inlet and outlet inside diameter for consistent exhaust flow
• Oval clam shell body made of stainless steel with aluminized steel heat shield
• Ceramic substrate for effective emissions control
• Weld-on inlet attachment for secure installation
• Heat shield attached to protect surrounding components
• Overall length of 16 inches with a body length of 12 inches

Product Line Details: 3in. Universal California Pre-OBDII Catalytic Converter

This catalytic converter is part of MagnaFlow's 3in. Universal California Pre-OBDII Catalytic Converter line, which focuses on providing universal-fit converters that comply with California emissions regulations for vehicles manufactured before the OBDII standard. The line emphasizes durable stainless steel construction and ceramic substrates to ensure reliable emissions reduction and long service life.

Technical Description and Features

The MagnaFlow 339109 catalytic converter features a stainless steel oval clam shell body measuring 12 inches in length, 6.375 inches in width, and 3.75 inches in height. Both the inlet and outlet have a 3-inch inside diameter, supporting consistent exhaust flow. The ceramic substrate inside effectively reduces harmful emissions, while the aluminized steel heat shield protects the converter and nearby components from excessive heat. The converter is designed with a single inlet and outlet and does not include mounting hardware or gaskets, requiring weld-on installation for secure attachment.

Compatible Vehicles and Applications

• Chevrolet Astro, Blazer, C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, Tahoe, Yukon
• Dodge B150, B250, B350, D150, D250, Dakota, Ramcharger
• GMC Jimmy, G10, G20, G30, P30, P3500, R10 Suburban, R20 Suburban, R1500, R1500 Suburban, R2500 Suburban, R3500, V10 Suburban, V20 Suburban, V1500, V1500 Suburban, V2500 Suburban, V3500, W150, W250

Common Issues Addressed by This Catalytic Converter

• Replacement for clogged or damaged catalytic converters causing poor engine performance
• Restores emissions compliance for pre-OBDII Chevrolet, Dodge, and GMC vehicles
• Reduces harmful exhaust emissions to meet California standards
• Eliminates exhaust leaks caused by rusted or cracked converter bodies
• Improves fuel efficiency by restoring proper exhaust flow

Installation Notes and Tips

This catalytic converter requires professional weld-on installation due to the inlet attachment design. Ensure the exhaust system is properly aligned before welding to avoid leaks or stress on the converter. Note that mounting hardware, gaskets, and clamps are not included and must be sourced separately. The attached aluminized steel heat shield helps protect surrounding components during operation.

Quality Assurance and Warranty

MagnaFlow catalytic converters are manufactured with high-quality stainless steel and ceramic substrates to ensure durability and effective emissions control. While specific warranty details for part number 339109 are not provided here, MagnaFlow products typically come with a limited warranty covering defects in materials and workmanship. Consult MagnaFlow or authorized distributors for exact warranty terms.