AP Exhaust 612004 Catalytic Converter - Front or Rear

CARB Compliant Universal Catalytic Converter

AP Exhaust 612004 is a CARB compliant universal catalytic converter built for California emissions applications. It uses a ceramic substrate inside a stainless steel oval body with 2-inch ID neck inlet and outlet connections for a direct-style universal exhaust repair.

Fits 2001 Chevrolet Tracker, rear; 2001 Lincoln Continental, front; and 2001 Suzuki Esteem, rear. The AP Exhaust 1SKXT2.00LC4 product line focuses on OE-dimensioned fitment and efficient converter construction for emissions service work.

Key Features

• Part number: 612004
• Brand line: 1SKXT2.00LC4
• CARB compliant universal catalytic converter
• Executive Order D-280-83
• Stainless steel body with oval shape
• Ceramic substrate material
• 2-inch ID neck inlet and outlet
• No air tube provisions
• No O2 sensor ports
• Overall length: 12 inches

Product Details

AP Exhaust 612004 is built for emissions repair where California compliance is required. The converter uses AP Emissions Technologies’ ARISTO substrate chemistry and modern manufacturing methods to support efficient catalyst loading while maintaining OE-style dimensions and fitment. Its 4-inch body height, 7.25-inch body width, and 8-inch body length make it a compact universal replacement for the listed applications. This part number, 612004, is identified with Executive Order D-280-83 and issued company AirTek, Inc.

What It Is Used For

• Replacing a failed catalytic converter on a California-emissions vehicle
• Restoring exhaust after a converter efficiency fault
• Addressing emissions test failure related to catalyst performance
• Repairing a damaged or restricted universal converter section
• Maintaining compliance on listed 2001 applications

Installation Notes

Verify inlet and outlet sizing before installation: this unit uses 2-inch ID neck connections on both ends. Confirm the vehicle position and emissions requirements match the listed fitment before welding or exhaust modification. Because this converter has no O2 sensor ports and no air tube provisions, transfer or relocate sensors only if the vehicle-specific exhaust layout requires it and the system is configured accordingly.

Quality Assurance

AP Exhaust builds this converter to exact OE dimensions using automated workstations, spinner welding equipment, and high-speed production lines. The result is consistent fitment and construction for the listed California-compliant applications, including the 2001 Chevrolet Tracker, 2001 Lincoln Continental, and 2001 Suzuki Esteem.