Dynomax 33274 Exhaust Clamp - Muffler To Tail Pipe, Tail Pipe To Spout or Y-Pipe To Muffler

Dynomax Mega-Clamp 33274 Exhaust Clamp

The Dynomax Mega-Clamp 33274 is a 4-inch band-style lap joint exhaust clamp built for heavy-duty exhaust connections. It uses stainless steel hardware and a natural finish to support secure clamping at common exhaust junctions on trucks and diesel applications.

Part number 33274 is part of the Dynomax Mega-Clamp line, which is offered in multiple styles, sizes, and materials to cover a wide range of exhaust repair and replacement needs. This clamp is a practical choice for service work on Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD exhaust systems, as well as select Ford and Dodge truck applications.

Key Features

• Band, lap joint exhaust clamp design
• 4.000 in. diameter
• Stainless steel hardware material
• Natural finish
• Hex nut type
• Economy product grade
• 25-gauge saddle with round saddle holes
• Class HA construction

Detailed Description

Dynomax 33274 is engineered for exhaust system connections that require a 4-inch clamp at the joint. The band and lap joint format helps secure mating exhaust tubing at locations such as Y-pipe to muffler, muffler to tail pipe, and tail pipe to spout connections. With confirmed coverage across 1988-2007 model years, this clamp supports a broad range of truck exhaust service needs.

Compatible With 2001-2006 Chevrolet Silverado 2500 HD, Y-Pipe To Muffler, Muffler To Tail Pipe, and Tail Pipe To Spout; 2001-2006 GMC Sierra 2500 HD, Y-Pipe To Muffler, Muffler To Tail Pipe, and Tail Pipe To Spout; 1999-2003 Ford F-250 Super Duty, Tail Pipe To Spout; and 1994-2002 Dodge Ram 2500 and Ram 3500 turbo back system applications. It also appears in 2007 Chevrolet Silverado 2500 HD Classic and GMC Sierra 2500 HD Classic exhaust positions. Part number 33274 is a direct-fit style clamp for many heavy-duty exhaust repair jobs.

This part cross-references Walker Mega-Clamp applications for the same exhaust connection style.

Common Uses

• Replacing a worn exhaust clamp at a muffler-to-tail pipe joint
• Securing a tail pipe to spout connection after exhaust service
• Clamping a Y-pipe to muffler junction on heavy-duty trucks
• Restoring a sealed exhaust connection on turbo back systems
• Addressing exhaust leaks caused by loose or fatigued clamp hardware

Installation Notes and Tips

Verify the exhaust tube outside diameter before installation; this clamp is sized for 4-inch applications. Clean the pipe surfaces before tightening so the band seats evenly across the lap joint. Confirm the exact position on the vehicle, since fitment varies by year, make, model, and exhaust location. For 2004 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD applications, review engine and system notes before ordering.

Quality Assurance

Dynomax Mega-Clamp products are built with Walker engineering and manufactured in a range of materials for heavy-duty exhaust service. Part number 33274 uses stainless steel hardware and a service-focused clamp design for dependable exhaust fastening in truck applications.