Walker 33978 Exhaust Clamp

Walker 33978 Exhaust Clamp Overview

The Walker 33978 Mega-Clamp is a steel exhaust clamp built for 2-inch pipe connections in band, butt joint applications. Its aluminized finish adds corrosion resistance for exhaust service, while the 3-inch width and 7/16-inch bolt diameter support a secure, serviceable connection.

Use Walker 33978 when you need a direct-fit exhaust clamp for select Chevrolet Cruze, Ford Transit-150, Ford Transit-250, BMW 325Ci, BMW 330Ci, BMW 325i, BMW 325xi, BMW 330i, BMW 330xi, and Audi A6 Quattro exhaust repairs.

Key Features

• Steel construction for exhaust hardware applications
• 2-inch pipe diameter sizing
• Aluminized finish for added resistance to exhaust-system corrosion
• Band, butt joint clamp type for joining exhaust sections
• Hex nut design with 0.4375-inch bolt diameter
• 3-inch width for broad clamping contact
• Walker part number 33978

Detailed Description

Walker 33978 is a Mega-Clamp exhaust clamp engineered for 2-inch exhaust tubing and common butt-joint connections. It is a practical choice for service work on resonator-to-muffler, converter-to-resonator, and converter-to-Y-pipe locations across select BMW, Audi, Chevrolet, and Ford applications. This part number 33978 also cross-references BRExhaust 250-354 for the same application.

Fits 2016-2019 Chevrolet Cruze, Resonator Assembly To Muffler Assembly. Fits 2015-2019 Ford Transit-150, Converter To Y-Pipe. Fits 2015-2019 Ford Transit-250, Converter To Y-Pipe. Fits 2001-2006 BMW 325Ci, Resonator Assembly To Muffler Assembly. Fits 2001-2006 BMW 325Ci, Front Resonator Assembly To Rear Resonator Assembly. Fits 2001-2006 BMW 330Ci, Front Resonator Assembly To Rear Resonator Assembly. Fits 2001-2006 BMW 330Ci, Resonator Assembly To Muffler Assembly. Fits 2001-2005 BMW 325i, Resonator Assembly To Muffler Assembly. Fits 2003-2005 BMW 325i, Front Resonator Assembly To Rear Resonator Assembly. Fits 2001-2005 BMW 325xi, Resonator Assembly To Muffler Assembly. Fits 2001-2005 BMW 330i, Front Resonator Assembly To Rear Resonator Assembly. Fits 2001-2005 BMW 330i, Resonator Assembly To Muffler Assembly. Fits 2001-2005 BMW 330xi, Resonator Assembly To Muffler Assembly. Fits 2001-2005 BMW 330xi, Muffler Assembly To Resonator Assembly. Fits 1998-2004 Audi A6 Quattro, Resonator Assembly To Muffler. Fits 2000-2004 Audi A6 Quattro, Converter To Resonator Assembly. Fits 2000-2001 Audi A6 Quattro, Resonator Assembly To Muffler Assembly.

Common Repair Uses

• Sealing a leaking exhaust joint at the resonator or muffler connection
• Replacing a rusted or damaged clamp during exhaust service
• Securing a converter-to-Y-pipe connection on Transit-150 and Transit-250 vans
• Restoring clamp tension after exhaust section replacement
• Addressing exhaust noise from a loose butt-joint connection

Installation Notes and Tips

Confirm the pipe diameter before installation; this clamp is sized for 2-inch tubing. Match the clamp location to the listed position, such as resonator assembly to muffler assembly or converter to Y-pipe, and inspect the pipe ends for damage, distortion, or heavy corrosion before tightening.

Walker 33978 is a direct exhaust hardware replacement for the listed applications and is commonly selected for BMW 325Ci, BMW 330i, Audi A6 Quattro, and Chevrolet Cruze exhaust service. For fitment verification, compare the vehicle year, model, and exhaust position against the application list before installation.

Quality Assurance

Walker manufactures the Mega-Clamp line with a focus on exhaust hardware fit and material selection, offering multiple clamp styles and finishes for service applications. Part number 33978 reflects Walker’s standard exhaust clamp engineering for routine repair and replacement work.