AP Exhaust 40123 Exhaust Muffler Assembly
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AP Exhaust

AP Exhaust 40123 Exhaust Muffler Assembly

Brand AP Exhaust 40123
Muffler Material Aluminized steel
Fits Chevrolet and GMC · 16 vehicles

Aluminized steel. Helps resist corrosion in demanding exhaust conditions.

Muffler assembly. A complete exhaust muffler solution for straightforward replacement.

Cross-references 20960980 for the same application. See all 1.

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AP Exhaust 40123 Muffler Assembly for Equinox and Terrain

AP Exhaust 40123 is an exhaust muffler assembly built with aluminized steel for corrosion resistance and dependable exhaust service. It is a direct-fit replacement for select 2010-2017 Chevrolet Equinox and GMC Terrain applications with a welded OE-style exhaust layout.

Key Features

  • Aluminized steel muffler material for durable exhaust system service
  • Exhaust muffler assembly for OE-style replacement
  • Fits 2010-2017 Chevrolet Equinox, N/A
  • Fits 2010-2017 GMC Terrain, N/A
  • Part number 40123 for application matching and catalog lookup
  • Cross-references part number 20960980 for the same application

Detailed Description

This AP Exhaust muffler assembly is engineered for vehicles that use a welded factory exhaust configuration. The aluminized steel construction helps the muffler withstand everyday exhaust heat and road exposure, making it a practical replacement for worn or damaged OE components. AP Exhaust 40123 is listed for 2010-2017 Chevrolet Equinox and 2010-2017 GMC Terrain models, and the fitment notes indicate the OE system was welded, so replacing all noted parts is recommended during service.

Common Issues This Part Addresses

  • Exhaust noise from a rusted or leaking muffler
  • Reduced exhaust sealing at welded joints
  • Corrosion-related failure in the rear exhaust section
  • Damaged or deteriorated OE muffler assembly
  • Fitment mismatch when replacing a welded factory exhaust component

Installation Notes and Tips

Verify the vehicle’s exhaust layout before ordering, since this part is listed for welded assembly applications. Confirm the year, make, and model against the fitment data for your Chevrolet Equinox or GMC Terrain, and inspect adjacent exhaust sections for wear before installation. Because the OE system was welded, related parts may need replacement to complete the repair correctly.

Quality Assurance

AP Exhaust supplies exhaust components for OE-style replacement applications, and this muffler assembly is built from aluminized steel for service durability. Part number 40123 is cataloged for direct application matching on the listed vehicles.

Related reading

This part fits 16 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2017ChevroletEquinox2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2017GMCTerrain2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2016ChevroletEquinox2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2016GMCTerrain2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2015ChevroletEquinox2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2015GMCTerrain2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2014ChevroletEquinox2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2014GMCTerrain2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2013ChevroletEquinox2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2013GMCTerrain2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2012ChevroletEquinox2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2012GMCTerrain2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2011ChevroletEquinox2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2011GMCTerrain2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2010ChevroletEquinox2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
2010GMCTerrain2.4LL4N/AWelded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
20960980