Walker 56039 Exhaust Resonator and Pipe Assembly

Walker 56039 Exhaust Resonator and Pipe Assembly

Walker 56039 is an exhaust resonator and pipe assembly built for direct-fit replacement on select Nissan and INFINITI applications. It uses steel construction with an aluminized finish and OE-style flange connections to match the original exhaust layout and sound profile.

Key Features

• Part number 56039 for select Nissan Maxima and INFINITI I30/I35 applications
• Steel body and steel pipe construction for durable exhaust service
• Aluminized finish for added corrosion resistance
• Round resonator body with 20-inch body length
• Overall length: 61.75 inches
• 1 inlet and 1 outlet with 2-bolt welded flange connections
• Engineered to deliver OE-style flow characteristics and sound

Detailed Description

Walker 56039 is a resonator and pipe assembly designed to match the fit, performance, and sound of the original exhaust system. The resonator uses precise tuning to support smooth exhaust flow while helping maintain the factory sound character. With a round steel body, aluminized finish, and welded 2-bolt flange inlet and outlet, this assembly is built for direct replacement service on 1999-2004 Nissan Maxima and 2000-2004 INFINITI I30 and I35 models.

This part cross-references AP Exhaust 38812 for the same application. Walker 56039 is a practical choice when replacing a worn resonator on a Nissan Maxima exhaust system or an INFINITI I30/I35 exhaust assembly.

What It Helps Fix

• Exhaust noise caused by a damaged or rusted resonator
• Rattling or leaking exhaust sections at the flange connection
• Reduced exhaust flow from a deteriorated pipe assembly
• Factory sound changes after corrosion or impact damage
• Fitment issues when replacing the original resonator and pipe section

Installation Notes and Tips

Verify the vehicle’s emission configuration before ordering, especially for 2000-2001 Nissan Maxima and 1999 Nissan Maxima applications with California emission system notes. Confirm flange style, overall length, and body dimensions against the original part before installation. Professional exhaust installation is recommended to ensure proper alignment and sealing at the welded 2-bolt flange connections.

• Fits 2002-2004 INFINITI I35, N/A
• Fits 2000-2001 INFINITI I30, N/A
• Fits 2002-2003 Nissan Maxima, N/A
• Fits 2000-2001 Nissan Maxima, N/A with California Emission System
• Fits 2001 Nissan Maxima, N/A with Federal Emission System
• Fits 1999 Nissan Maxima, N/A with California Emission System; After 04/1999

Quality Assurance

Walker resonators are tuned to follow OE-style fit, flow, and sound characteristics. Part number 56039 is built with steel construction and an aluminized finish to support dependable exhaust replacement service on the listed Nissan Maxima and INFINITI applications.