Eastern Convertors 41104 Catalytic Converter with Integrated Exhaust Manifold - Front Right

Direct-Fit Catalytic Converter for Toyota Sienna

Eastern Convertors DIRECT FIT 41104 is a catalytic converter with an integrated exhaust manifold for the front right, firewall-side position on select Toyota Sienna models. It is built to OE dimensions for direct replacement service and uses ECO III catalyst technology with a Federal / EPA direct-fit manifold design.

The DIRECT FIT product line focuses on exact-fit exhaust replacement parts for straightforward installation and consistent fitment. This Eastern Convertors 41104 manifold converter is engineered for 2011-2016 Toyota Sienna applications and is built with advanced manufacturing methods to support dimensional accuracy and repeatable production quality.

Key Features

• Part number 41104
• Fits 2011-2016 Toyota Sienna, front right
• Integrated exhaust manifold and catalytic converter assembly
• Federal / EPA direct-fit manifold configuration
• ECO III catalyst type
• 6-bolt welded inlet design
• 2-bolt welded outlet design with outlet hardware
• 1 O2 sensor port
• 15.75-inch overall length
• Built to OE dimensions for factory-style fitment

Detailed Description

Eastern Convertors 41104 is a direct-fit catalytic converter with integrated exhaust manifold for the Toyota Sienna front right position. It is intended for 2011, 2012, 2013, 2014, 2015, and 2016 Toyota Sienna models and matches the firewall-side layout specified for this application. The converter uses ECO III catalyst chemistry and a Federal / EPA direct-fit manifold design to meet the requirements of the listed vehicle configuration.

Manufacturing methods include automated workstations, spinner welding equipment, and high-speed production lines to maintain OE-style dimensions and fitment. The proprietary NANO substrate chemistry is used to support efficient catalyst loading while keeping production costs controlled. Part number 41104 is a practical replacement choice when servicing the exhaust manifold and catalytic converter assembly on the Toyota Sienna.

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

Common Repair Uses

• Replacement for a cracked or leaking exhaust manifold assembly
• Repair for a failed catalytic converter on the front right side
• Correction for exhaust leaks at the manifold-to-pipe connection
• Service solution for a damaged O2 sensor port area
• Direct replacement when OE-style fitment is required on a Toyota Sienna

Installation Notes and Tips

Verify the vehicle is a 2011-2016 Toyota Sienna with the front right, firewall-side configuration before installation. Confirm the inlet uses a 6-bolt welded connection and the outlet uses a 2-bolt welded connection with the existing exhaust layout. Check the single O2 sensor port location and compare the overall length to the removed part to ensure proper alignment.

Not for sale or use in California, Colorado, Maine, or New York for vehicles with California emissions.

Quality Assurance

Eastern Convertors uses automated production equipment and OE-dimension manufacturing controls to support consistent fit and build quality. The ECO III catalyst and NANO substrate chemistry are part of the product’s emissions-focused design for the listed Federal / EPA application.