Details

• Brand:

  

• SKU:

  20779890

• Other Names:

  Muffler & Pipe Clamp

• Description:

  🧩 What it is

  • Exhaust system clamp (muffler & pipe clamp)
  • OEM General Motors / ACDelco part
  • Sometimes listed as:
    • Clamp, Exhaust System Attaching
    • Center Muffler Clamp

  ⚙️ What it does

  • Secures exhaust pipes together (usually at the muffler or mid-pipe)
  • Ensures a tight, leak-free seal in the exhaust system
  • Helps maintain proper:
    • Exhaust flow
    • Noise control
    • Emissions performance

  📏 Key details

  • Typically 3.5-inch clamp size
  • Fits dual exhaust setups
  • Direct OEM replacement (bolt-on)

  🚗 Common applications

  • Widely used on GM vehicles 2009–2025
  • Common on:
    • 5.3L V8
    • 6.2L V8 engines
  • Found in:
    • Chevrolet Silverado / Tahoe
    • GMC Sierra / Yukon
    • Cadillac Escalade

  🔄 Replaces

  • 25940558

  
  

  # Genuine GM OEM Exhaust Pipe Clamp (MPN: 20779890)

  The Genuine GM OEM Exhaust Pipe Clamp (MPN: 20779890) is engineered to secure and seal exhaust system connections on select GM vehicles equipped with 5.3L and 6.2L engines, including dual exhaust configurations. This authentic General Motors part delivers the tight, reliable connection your vehicle's exhaust system demands, ensuring optimal performance and emissions control. Manufactured to GM's exacting specifications, this exhaust clamp is the direct replacement for maintaining your truck's factory-engineered exhaust integrity.

  - Genuine OEM exhaust pipe clamp designed for tight, vibration-resistant sealing of dual exhaust connections
  - Factory fitment for GM vehicles with 5.3L and 6.2L engine platforms requiring dual exhaust systems
  - Engineered to withstand high-temperature exhaust conditions and provide long-lasting durability
  - Direct replacement part that meets all General Motors original equipment standards
  - Authentic GM component backed by rigorous engineering, testing, and General Motors warranty support

• Condition: New
• Notes: Included with muffler & pipe. Included with center muffler.
• Replaces:

  25940558

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