AP Exhaust H218 Exhaust Clamp

Brand AP Exhaust H218
Finish Natural
Material Mild steel
Pipe Diameter (IN) 2.125
Thread Diameter (IN) 3/8
Fits Cadillac · 12 vehicles

Mild steel construction. Provides a practical material choice for exhaust hardware service.

Natural finish. Offers a clean, uncoated appearance for replacement use.

Sized for exhaust service. Uses a 2.125-inch pipe diameter and 3/8-inch thread diameter.

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Exhaust Clamp Overview

AP Exhaust H218 is an exhaust clamp for specific Cadillac exhaust applications. It is built from mild steel with a natural finish and sized for a 2.125-inch pipe diameter and 3/8-inch thread diameter.

Key Features

  • Mild steel construction for exhaust hardware applications.
  • Natural finish for a straightforward replacement appearance.
  • 2.125-inch pipe diameter for the listed exhaust fitment.
  • 3/8-inch thread diameter for clamp hardware compatibility.
  • AP Exhaust H218 for targeted exhaust hardware replacement.

Fitment Details

  • Fits 2006-2011 Cadillac DTS, N/A.
  • Fits 1998-2003 Cadillac Seville, N/A. Use with aftermarket converter 645999; dual exhaust, chrome tip applications.

What It Is Used For

  • Replacing a worn or damaged exhaust clamp.
  • Securing exhaust tubing at the specified pipe size.
  • Restoring clamp retention in dual exhaust service.
  • Supporting exhaust repairs that require the listed thread size.

Installation Notes and Tips

Confirm pipe diameter and thread diameter before installation. Match the clamp to the exhaust configuration listed in the fitment data, including the Seville note for aftermarket converter 645999 and dual exhaust, chrome tip applications. Verify alignment and tightening during exhaust service to maintain a secure connection.

Quality Assurance

AP Exhaust H218 is a mild steel exhaust clamp built for the specified hardware dimensions and listed Cadillac applications.

This part fits 12 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2011CadillacDTS4.6LV8—
2010CadillacDTS4.6LV8—
2009CadillacDTS4.6LV8—
2008CadillacDTS4.6LV8—
2007CadillacDTS4.6LV8—
2006CadillacDTS4.6LV8—
2003CadillacSeville4.6LV8(Use w/ Aftermarket Conv. 645999); Dual Exhaust, chrome tip applications
2002CadillacSeville4.6LV8(Use w/ Aftermarket Conv. 645999); Dual Exhaust, chrome tip applications
2001CadillacSeville4.6LV8(Use w/ Aftermarket Conv. 645999); Dual Exhaust, chrome tip applications
2000CadillacSeville4.6LV8(Use w/ Aftermarket Conv. 645999); Dual Exhaust, chrome tip applications
1999CadillacSeville4.6LV8(Use w/ Aftermarket Conv. 645999); Dual Exhaust, chrome tip applications
1998CadillacSeville4.6LV8(Use w/ Aftermarket Conv. 645999); Dual Exhaust, chrome tip applications