AP Exhaust 645442 Catalytic Converter - Rear

Name: AP Exhaust 645442 Catalytic Converter - Rear
Brand: AP Exhaust
SKU: BBDL-645442
Price: 243.61 USD
Availability: InStock

Rear

⚙️ 49 vehicles fit this part

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✅OE Direct Replacement — Bolt-on fit, no modifications needed

🚗Fitment: Ford and Mazda, B3000, B4000, and Ranger

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AP Exhaust Catalytic Converter for Ford and Mazda Trucks

The AP Exhaust catalytic converter part number 645442 is designed for direct-fit replacement on select Ford and Mazda trucks. Engineered with durable stainless steel and a ceramic substrate, this catalytic converter ensures compliance with Federal EPA standards while maintaining reliable exhaust flow.

Key Features of AP Exhaust Catalytic Converter 645442

Constructed from corrosion-resistant stainless steel body material
Federal / EPA direct-fit design for precise installation
Compatible with Ford B3000, B4000, and Ranger models
Includes inlet and outlet gaskets for secure sealing
Inlet features a 3 bolt welded flange; outlet has a 2 bolt welded flange with gasket stub
Overall length of 18.75 inches (including studs)
Ceramic substrate for effective emission control

Detailed Product Description

The AP Exhaust catalytic converter 645442 is built to meet Federal EPA requirements, making it suitable for emissions compliance on Ford B3000, B4000, and Ranger trucks. Its stainless steel construction offers resistance to rust and corrosion, extending the service life of the exhaust component. The ceramic substrate inside efficiently converts harmful exhaust gases into less harmful emissions. The converter features a 3 bolt welded flange inlet and a 2 bolt welded flange outlet with a gasket stub, ensuring a secure and leak-free connection. Included inlet and outlet gaskets help maintain a proper seal during installation. With an overall length of 18.75 inches, this catalytic converter is designed for a direct-fit replacement without modification.

Common Applications and Issues Addressed

Replacement for damaged or clogged catalytic converters on Ford B3000, B4000, and Ranger trucks
Helps resolve check engine light issues related to emissions
Restores proper exhaust flow and reduces harmful emissions
Supports passing state and federal emissions inspections
Addresses exhaust leaks caused by worn or failing converters

Installation Notes and Tips

Ensure the vehicle is cooled down before beginning installation. This catalytic converter is designed for direct-fit replacement on specified Ford and Mazda models, minimizing the need for modifications. Use the included inlet and outlet gaskets to achieve a proper seal. Verify flange bolt patterns match the vehicle’s exhaust system. It is recommended to inspect surrounding exhaust components for wear or damage during installation.

Quality Assurance and Warranty

AP Exhaust catalytic converters are manufactured to meet Federal EPA standards for emissions control. The stainless steel body and ceramic substrate are selected for durability and performance. While specific warranty details are not provided, AP Exhaust products typically adhere to industry quality standards to ensure reliable operation and compliance.

Brand	AP Exhaust
Part Number	645442
Body Material	Stainless steel
Inlet Gasket	Yes
Inlet Hardware	None
Inlet Type A	3 bolt welded flange
O2 Sensor Ports	None
Outlet Gasket	Yes
Outlet Hardware	Yes
Outlet Type A	2 bolt welded flange w/ gasket stub
Overall Length (IN)	18.75
Overall Length (IN)	18.75 (w/ studs)
Substrate Material	Ceramic
Type	Federal / epa direct-fit

This part fits 49 vehicles. Search below:

Year	Make	Model	Liters	Cylinders	Wheel Base	Position	Notes
2006	Ford	Ranger	4.0L	V6	111.5"	Rear	Direct Fit; (04-06); 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.
2006	Ford	Ranger	4.0L	V6	111.6"	Rear	Direct Fit; (04-06); 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.
2006	Ford	Ranger	4.0L	V6	117.6"	Rear	Direct Fit; (04-06); 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.
2006	Ford	Ranger	4.0L	V6	125.7"	Rear	Direct Fit; (04-06); 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.
2006	Ford	Ranger	4.0L	V6	125.9"	Rear	Direct Fit; (04-06); 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.
2006	Ford	Ranger	3.0L	V6	125.9"	Rear	Direct Fit; (04-06); 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.
2006	Ford	Ranger	3.0L	V6	125.7"	Rear	Direct Fit; (04-06); 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.
2006	Ford	Ranger	3.0L	V6	117.6"	Rear	Direct Fit; (04-06); 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.
2006	Ford	Ranger	3.0L	V6	111.6"	Rear	Direct Fit; (04-06); 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.
2006	Ford	Ranger	3.0L	V6	111.5"	Rear	Direct Fit; (04-06); 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.
2006	Ford	Ranger	4.0L	V6		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.
2006	Ford	Ranger	3.0L	V6		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.
2006	Mazda	B3000	3.0L	V6	125.9"	N/A	Direct Fit; (04-06); 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.
2006	Mazda	B3000	3.0L	V6	111.6"	N/A	Direct Fit; (04-06); 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.
2006	Mazda	B3000	3.0L	V6		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.
2006	Mazda	B4000	4.0L	V6	125.9"	N/A	Direct Fit; (04-06); 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.
2006	Mazda	B4000	4.0L	V6		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.
2005	Ford	Ranger	4.0L	V6	125.7"	Rear	Direct Fit; (04-06); 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.
2005	Ford	Ranger	4.0L	V6	117.5"	Rear	Direct Fit; (04-06); 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.
2005	Ford	Ranger	4.0L	V6	111.5"	Rear	Direct Fit; (04-06); 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.
2005	Ford	Ranger	3.0L	V6	111.5"	Rear	Direct Fit; (04-06); 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.
2005	Ford	Ranger	3.0L	V6	117.5"	Rear	Direct Fit; (04-06); 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.
2005	Ford	Ranger	3.0L	V6	125.7"	Rear	Direct Fit; (04-06); 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.
2005	Ford	Ranger	4.0L	V6		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.
2005	Ford	Ranger	3.0L	V6		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.
2005	Mazda	B3000	3.0L	V6	111.6"	N/A	Direct Fit; (04-06); 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.
2005	Mazda	B3000	3.0L	V6	125.9"	N/A	Direct Fit; (04-06); 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.
2005	Mazda	B3000	3.0L	V6		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.
2005	Mazda	B4000	4.0L	V6	125.9"	N/A	Direct Fit; (04-06); 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.
2005	Mazda	B4000	4.0L	V6		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.
2004	Ford	Ranger	4.0L	V6	117.6"	Rear	Direct Fit; (04-06); 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.
2004	Ford	Ranger	4.0L	V6	125.7"	Rear	Direct Fit; (04-06); 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.
2004	Ford	Ranger	4.0L	V6	125.9"	Rear	Direct Fit; (04-06); 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.
2004	Ford	Ranger	4.0L	V6	111.6"	Rear	Direct Fit; (04-06); 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.
2004	Ford	Ranger	4.0L	V6	111.4"	Rear	Direct Fit; (04-06); 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.
2004	Ford	Ranger	3.0L	V6	125.7"	Rear	Direct Fit; (04-06); 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.
2004	Ford	Ranger	3.0L	V6	117.6"	Rear	Direct Fit; (04-06); 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.
2004	Ford	Ranger	3.0L	V6	111.6"	Rear	Direct Fit; (04-06); 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.
2004	Ford	Ranger	3.0L	V6	111.4"	Rear	Direct Fit; (04-06); 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.
2004	Ford	Ranger	3.0L	V6	125.9"	Rear	Direct Fit; (04-06); 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.
2004	Ford	Ranger	4.0L	V6		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.
2004	Ford	Ranger	3.0L	V6		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.
2004	Mazda	B3000	3.0L	V6	125.7"	N/A	Direct Fit; (04-06); 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.
2004	Mazda	B3000	3.0L	V6	111.6"	N/A	Direct Fit; (04-06); 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.
2004	Mazda	B3000	3.0L	V6	125.9"	N/A	Direct Fit; (04-06); 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.
2004	Mazda	B3000	3.0L	V6		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.
2004	Mazda	B4000	4.0L	V6	125.7"	N/A	Direct Fit; (04-06); 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.
2004	Mazda	B4000	4.0L	V6	125.9"	N/A	Direct Fit; (04-06); 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.
2004	Mazda	B4000	4.0L	V6		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.