HomeExhaust > MufflersAP Exhaust 40138 Exhaust Muffler Assembly
Part #: 40138

AP Exhaust 40138 Exhaust Muffler Assembly

⚙️ 6 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$111.85Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Prius
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Exhaust Muffler for Toyota Prius

The AP Exhaust 40138 exhaust muffler assembly is designed specifically for Toyota Prius models, providing a durable and effective solution for exhaust noise reduction and emission control. Constructed from aluminized steel, this muffler offers resistance to corrosion and heat, ensuring long-lasting performance.

  • Constructed from aluminized steel for enhanced durability
  • Compatible with Toyota Prius exhaust systems
  • Part number 40138 for precise fitment
  • Designed to reduce exhaust noise and improve emission flow
  • Direct replacement muffler assembly for easy installation

Durable Aluminized Steel Construction

This AP Exhaust muffler assembly (part number 40138) is made from aluminized steel, a material known for its corrosion resistance and ability to withstand high temperatures. This construction helps extend the life of the muffler, especially in environments exposed to moisture and road salt. The aluminized steel also maintains structural integrity under thermal cycling, which is common in exhaust systems.

Compatible With Toyota Prius Models

The AP Exhaust 40138 muffler assembly is engineered to fit Toyota Prius vehicles, ensuring proper alignment and connection within the exhaust system. This compatibility helps maintain the vehicle’s original exhaust flow characteristics and noise control, supporting optimal engine performance and emissions compliance.

Common Applications and Problem Solving

  • Replacement for worn or damaged mufflers on Toyota Prius
  • Addresses excessive exhaust noise due to muffler failure
  • Helps resolve exhaust leaks that can affect emissions and performance
  • Restores proper exhaust flow to maintain engine efficiency
  • Prevents rust-related deterioration common in older mufflers

Installation Notes and Tips

When installing the AP Exhaust 40138 muffler assembly, ensure the vehicle is securely lifted and cooled down to avoid injury. Verify the part number matches your Toyota Prius model year and exhaust configuration. Properly align the muffler to existing exhaust pipes and use appropriate clamps or welding methods as required by your vehicle’s exhaust system design.

Quality Assurance and Warranty

AP Exhaust manufactures this muffler assembly to meet industry standards for fit and function. The aluminized steel construction supports durability under typical driving conditions. Please consult AP Exhaust or your parts provider for specific warranty details related to part number 40138.

BrandAP Exhaust
Part Number40138
Muffler MaterialAluminized steel

This part fits 6 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2015ToyotaPriusBase1.8LL4ELECTRIC/GASN/AWelded Exhaust Muffler Assembly
2014ToyotaPriusBase1.8LL4ELECTRIC/GASN/AWelded Exhaust Muffler Assembly
2013ToyotaPriusBase1.8LL4ELECTRIC/GASN/AWelded Exhaust Muffler Assembly
2012ToyotaPriusBase1.8LL4ELECTRIC/GASN/AWelded Exhaust Muffler Assembly
2011ToyotaPriusBase1.8LL4ELECTRIC/GASN/AWelded Exhaust Muffler Assembly
2010ToyotaPriusBase1.8LL4ELECTRIC/GASN/AWelded Exhaust Muffler Assembly

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

17430-37380

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.