AP Exhaust 643137 Catalytic Converter - Rear

Name: AP Exhaust 643137 Catalytic Converter - Rear
Brand: AP Exhaust
SKU: BBDL-643137
Price: 219.39 USD
Availability: InStock

Rear

⚙️ 21 vehicles fit this part

🔍

Select your vehicle to confirm fitment

Verify this part fits before purchasing — free returns if it doesn't

$219.39Free 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: Acura and Honda, Accord and TLX

🔄Easy Returns — Return within 60 days for a full refund

🚚Fast Shipping — Most orders ship same business day before 1pm CST

Not what you need? Click here for all Catalytic Converter options

AP Exhaust Catalytic Converter for Acura Accord and Honda TLX

The AP Exhaust catalytic converter 643137 is designed to meet Federal and EPA direct-fit standards, providing a reliable replacement for your Acura Accord or Honda TLX. Constructed with durable stainless steel and a ceramic substrate, this catalytic converter ensures efficient emission control and long-lasting performance.

Body material: corrosion-resistant stainless steel
Federal / EPA direct-fit catalytic converter
3 bolt welded flange inlet and outlet for secure connection
Includes inlet and outlet gaskets for proper sealing
Equipped with one O2 sensor port for accurate emissions monitoring
Overall length of 49 inches for precise fitment
Ceramic substrate for effective catalytic conversion

Durable Construction and Precise Fitment

This AP Exhaust catalytic converter 643137 features a stainless steel body that resists rust and corrosion, ensuring durability under harsh driving conditions. The ceramic substrate inside is engineered to facilitate the chemical reactions necessary to reduce harmful emissions. Both the inlet and outlet utilize 3 bolt welded flanges, providing a secure and leak-free connection to your vehicle's exhaust system. The inclusion of inlet and outlet gaskets helps maintain a tight seal, preventing exhaust leaks. Additionally, the single O2 sensor port allows for proper sensor installation, maintaining your Acura Accord or Honda TLX’s emissions system functionality.

Compatible Vehicles and Applications

Designed specifically for Acura Accord models
Compatible with Honda TLX vehicles
Ideal for replacing worn or damaged catalytic converters
Meets Federal and EPA regulations for direct-fit replacements
Helps restore proper emissions control and exhaust flow

Installation Notes and Tips

Ensure the vehicle is cooled down before beginning installation to avoid burns. This catalytic converter 643137 is a direct-fit replacement, so it should align with existing mounting points and O2 sensor locations on Acura Accord and Honda TLX models. Use the included inlet and outlet gaskets to prevent exhaust leaks. Verify the O2 sensor port matches your vehicle’s sensor configuration before installation. Professional installation is recommended to ensure proper fit and function.

Quality Assurance and Warranty

AP Exhaust catalytic converters are manufactured to meet Federal and EPA standards, ensuring compliance with emissions regulations. The stainless steel construction and ceramic substrate provide durability and reliable performance. Please refer to AP Exhaust’s warranty policy for specific coverage details related to part number 643137.

Brand	AP Exhaust
Part Number	643137
Body Material	Stainless steel
Inlet Gasket	Yes
Inlet Hardware	Yes
Inlet Type A	3 bolt welded flange
O2 Sensor Ports	1
Outlet Gasket	Yes
Outlet Hardware	Yes
Outlet Type A	3 bolt welded flange
Overall Length (IN)	49
Substrate Material	Ceramic
Type	Federal / epa direct-fit

This part fits 21 vehicles. Search below:

Year	Make	Model	Body Type	Transmission	Liters	Cylinders	Position	Notes
2020	Acura	TLX			2.4L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2019	Acura	TLX			2.4L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2018	Acura	TLX			2.4L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2017	Acura	TLX			2.4L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2017	Honda	Accord	Sedan	Automatic	2.4L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2017	Honda	Accord	Sedan	Automatic CVT	2.4L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2017	Honda	Accord		Automatic	2.4L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2016	Acura	TLX			2.4L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2016	Honda	Accord	Sedan	Automatic	2.4L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2016	Honda	Accord	Sedan	Automatic CVT	2.4L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2016	Honda	Accord		Automatic	2.4L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2015	Acura	TLX			2.4L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2015	Honda	Accord	Sedan	Automatic	2.4L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2015	Honda	Accord	Sedan	Automatic CVT	2.4L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2015	Honda	Accord		Automatic	2.4L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2014	Honda	Accord	Sedan	Automatic	2.4L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2014	Honda	Accord	Sedan	Automatic CVT	2.4L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2014	Honda	Accord		Automatic	2.4L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2013	Honda	Accord	Sedan	Automatic	2.4L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2013	Honda	Accord	Sedan	Automatic CVT	2.4L	L4	N/A	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2013	Honda	Accord		Automatic	2.4L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.

* 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:

18150-5A2-A51

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