LEDAUT 4" Lap Joint Band Clamps — 4" OD to 4" ID Exhaust Clamp 4-Pack, 304 Stainless, Reusable Serviceable

LEDAUT's 4" stainless steel lap joint band clamp is a four-piece kit designed to securely join 4" OD to 4" ID exhaust pipes, mufflers, elbows and tubing with a corrosion-resistant 304 stainless construction.

Built for garage mechanics, fabricators and DIYers who need a reliable, serviceable connection on automotive or industrial exhaust systems, this 4-pack of lap joint clamps combines sturdy materials with a simple, low-profile design. The unitized clamp halves reduce parts complexity while delivering even clamping pressure and a re-usable joint that resists distortion during tightening. Each clamp is engineered for routine maintenance access and to withstand exposure to road moisture and exhaust environments.

How does this clamp join two 4" exhaust components?

The clamp uses a lap joint design that fits around a 4" outside diameter pipe and mates to a 4" inside diameter component, creating a tight mechanical connection without welding. When the bolts are tightened, the block and band compress the joint to hold parts together while allowing future disassembly for service.

• Fits 4" OD to 4" ID mating surfaces for common exhaust parts
• Two-piece band with central block ensures even load distribution
• Bolted connection removes need for welding or permanent adhesives

What materials and corrosion protection are used?

Each clamp is formed from 304-grade stainless steel, chosen for its balance of strength and resistance to corrosion from moisture and exhaust gases. Additional surface plating extends life in harsher conditions and helps maintain a clean appearance over time.

• 304 stainless steel body for durability and rust resistance
• Protective plating applied to components for added corrosion protection
• Construction designed to minimize crevices where corrosion can start

How easy is installation and later service?

Installation is straightforward: position the lap joint over the mating pipes, insert the central block, then tighten the fasteners to secure the clamp. Because the clamp doesn’t deform the pipe, parts can be separated and reassembled for routine inspections, muffler swaps or catalytic converter service.

• No welding required—bolted connection for fast assembly
• Re-usable clamp allows disassembly for maintenance or upgrades
• Unitized halves reduce number of loose pieces to manage during install

Will these clamps work for my application and how should I choose them?

They’re made to join a 4" OD pipe to a 4" ID component, commonly found in aftermarket and replacement exhaust systems. Measure your pipe outside diameter and the mating part’s inside diameter before purchase; LEDAUT offers multiple sizes if you need a different fit.

• Confirm 4" OD to 4" ID compatibility before ordering
• Suitable for pipes, mufflers, elbows, and many tubing connections
• Available in packs of four for multiple joints or spares

Who is this for: installers, performance shops, fleet technicians and home mechanics who want a dependable, serviceable clamp for 4" exhaust connections. If you need a corrosion-resistant, reusable solution that keeps exhaust components aligned without welding, LEDAUT's lap joint clamps provide a practical, professional-grade option. Contact LEDAUT customer service if you’re unsure about fitment—support is available to help match the clamp to your system.