OE Quality
60-Day Returns

AP Exhaust 40138 Exhaust Muffler Assembly
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.
| Brand | AP Exhaust |
| Part Number | 40138 |
| Muffler Material | Aluminized steel |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2015 | Toyota | Prius | Base | 1.8L | L4 | ELECTRIC/GAS | N/A | Welded Exhaust Muffler Assembly |
| 2014 | Toyota | Prius | Base | 1.8L | L4 | ELECTRIC/GAS | N/A | Welded Exhaust Muffler Assembly |
| 2013 | Toyota | Prius | Base | 1.8L | L4 | ELECTRIC/GAS | N/A | Welded Exhaust Muffler Assembly |
| 2012 | Toyota | Prius | Base | 1.8L | L4 | ELECTRIC/GAS | N/A | Welded Exhaust Muffler Assembly |
| 2011 | Toyota | Prius | Base | 1.8L | L4 | ELECTRIC/GAS | N/A | Welded Exhaust Muffler Assembly |
| 2010 | Toyota | Prius | Base | 1.8L | L4 | ELECTRIC/GAS | N/A | Welded 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.