OE Quality
60-Day Returns

AP Exhaust 645897 Catalytic Converter
AP Exhaust Catalytic Converter for Ford B2500 and Mazda Ranger
The AP Exhaust catalytic converter part number 645897 is designed as a direct-fit replacement for Ford B2500 and Mazda Ranger models. Constructed with durable stainless steel and a ceramic substrate, this federal/EPA compliant converter ensures reliable emissions control without the need for inlet gaskets.
Key Features of AP Exhaust Catalytic Converter 645897
- Body material made from corrosion-resistant stainless steel
- Federal/EPA direct-fit design for precise compatibility
- Single O2 sensor port for accurate emissions monitoring
- Inlet with 2 bolt loose flange featuring female and spherical flare options
- Outlet with 2 bolt welded flange and gasket stub included
- Overall length of 49 inches for proper fitment
- Ceramic substrate for effective catalytic conversion
- Includes outlet gasket and hardware for secure installation
Detailed Product Description
This AP Exhaust catalytic converter (part number 645897) is engineered specifically for Ford B2500 and Mazda Ranger vehicles, providing a direct-fit replacement that meets federal and EPA emissions standards. The stainless steel body offers enhanced durability against rust and corrosion, extending the service life of the converter. The ceramic substrate efficiently converts harmful exhaust gases into less harmful emissions, supporting environmental compliance.
The inlet design features a 2 bolt loose flange with both female and spherical flare options, allowing for a secure and leak-free connection without requiring an inlet gasket. The outlet flange is a 2 bolt welded flange with a gasket stub, and the necessary outlet gasket and hardware are included to ensure a proper seal. With an overall length of 49 inches, this catalytic converter fits precisely within the exhaust system of the specified vehicles.
Common Applications and Issues Addressed
- Replacement for clogged or damaged catalytic converters on Ford B2500 and Mazda Ranger
- Restores proper emissions control to pass state and federal inspections
- Resolves check engine light issues related to catalytic converter failure
- Improves exhaust flow and reduces harmful emissions
- Addresses exhaust leaks caused by flange or gasket wear
Installation Notes and Tips
Installation of the AP Exhaust catalytic converter 645897 requires no inlet gasket, simplifying the replacement process. Ensure the O2 sensor is properly installed in the single sensor port to maintain accurate emissions readings. Use the included outlet gasket and hardware to secure the welded flange connection and prevent exhaust leaks. Verify the overall length and flange types match the vehicle’s exhaust system before installation.
Quality Assurance and Warranty
AP Exhaust catalytic converters are manufactured to meet federal and EPA standards for emissions control. The stainless steel construction and ceramic substrate provide long-lasting performance. While specific warranty details are not provided here, AP Exhaust products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.
| Brand | AP Exhaust |
| Part Number | 645897 |
| Body Material | Stainless steel |
| Inlet Gasket | Not required |
| Inlet Hardware | None |
| Inlet Type A | 2 bolt loose flange w/ female flare |
| Inlet Type A | 2 bolt loose flange w/ spherical flare |
| O2 Sensor Ports | 1 |
| Outlet Gasket | Yes |
| Outlet Hardware | Yes |
| Outlet Type A | 2 bolt welded flange w/ gasket stub |
| Overall Length (IN) | 49 |
| Substrate Material | Ceramic |
| Type | Federal / epa direct-fit |
This part fits 35 vehicles. Search below:
| Year | Make | Model | Body Type | Liters | Cylinders | Wheel Base | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2001 | Ford | Ranger | 2.5L | L4 | 118.0" | N/A | Direct Fit; (98-01 2.5L); 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. | |
| 2001 | Ford | Ranger | 2.5L | L4 | 112.0" | N/A | Direct Fit; (98-01 2.5L); 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. | |
| 2001 | Ford | Ranger | 2.5L | L4 | 126.0" | 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. | |
| 2001 | Ford | Ranger | 2.5L | 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. | ||
| 2001 | Mazda | B2500 | Standard Cab Pickup | 2.5L | L4 | 111.6" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 2001 | Mazda | B2500 | 2.5L | 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. | ||
| 2000 | Ford | Ranger | 2.5L | L4 | 118.0" | N/A | Direct Fit; (98-01 2.5L); 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. | |
| 2000 | Ford | Ranger | 2.5L | L4 | 112.0" | N/A | Direct Fit; (98-01 2.5L); 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. | |
| 2000 | Ford | Ranger | 2.5L | L4 | 126.0" | 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. | |
| 2000 | Ford | Ranger | 2.5L | 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. | ||
| 2000 | Mazda | B2500 | Standard Cab Pickup | 2.5L | L4 | 111.6" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 2000 | Mazda | B2500 | Extended Cab Pickup | 2.5L | L4 | 125.7" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 2000 | Mazda | B2500 | Extended Cab Pickup | 2.5L | L4 | 111.6" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 2000 | Mazda | B2500 | Standard Cab Pickup | 2.5L | L4 | 125.7" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 2000 | Mazda | B2500 | 2.5L | 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. | ||
| 1999 | Ford | Ranger | 2.5L | L4 | 112.0" | N/A | Direct Fit; (98-01 2.5L); 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. | |
| 1999 | Ford | Ranger | 2.5L | L4 | 118.0" | N/A | Direct Fit; (98-01 2.5L); 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. | |
| 1999 | Ford | Ranger | 2.5L | L4 | 126.0" | 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. | |
| 1999 | Ford | Ranger | 2.5L | 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. | ||
| 1999 | Mazda | B2500 | Extended Cab Pickup | 2.5L | L4 | 125.7" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 1999 | Mazda | B2500 | Standard Cab Pickup | 2.5L | L4 | 125.9" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 1999 | Mazda | B2500 | Standard Cab Pickup | 2.5L | L4 | 125.7" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 1999 | Mazda | B2500 | Extended Cab Pickup | 2.5L | L4 | 125.9" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 1999 | Mazda | B2500 | Standard Cab Pickup | 2.5L | L4 | 111.6" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 1999 | Mazda | B2500 | Extended Cab Pickup | 2.5L | L4 | 111.6" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 1999 | Mazda | B2500 | 2.5L | 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. | ||
| 1998 | Ford | Ranger | 2.5L | L4 | 118.0" | N/A | Direct Fit; (98-01 2.5L); 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. | |
| 1998 | Ford | Ranger | 2.5L | L4 | 112.0" | N/A | Direct Fit; (98-01 2.5L); 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. | |
| 1998 | Ford | Ranger | 2.5L | L4 | 126.0" | 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. | |
| 1998 | Ford | Ranger | 2.5L | 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. | ||
| 1998 | Mazda | B2500 | Extended Cab Pickup | 2.5L | L4 | 125.7" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 1998 | Mazda | B2500 | Standard Cab Pickup | 2.5L | L4 | 111.6" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 1998 | Mazda | B2500 | Extended Cab Pickup | 2.5L | L4 | 111.6" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 1998 | Mazda | B2500 | Standard Cab Pickup | 2.5L | L4 | 125.7" | N/A | Direct Fit; (98-01 2.5L Eng.); 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. |
| 1998 | Mazda | B2500 | 2.5L | 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. |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.