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OE Quality
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WalkerPart #: 81758
Walker 81758 Catalytic Converter
⚙️ 29 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦CalCat
🚗Fitment: Buick, Chevrolet, Oldsmobile, and Pontiac, Grand Prix, Impala, Intrigue, Monte Carlo, and Regal
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Walker 81758 Catalytic Converter
| Brand | Walker |
| Part Number | 81758 |
| Position | CalCat |
| Mounting Hardware Included | No |
| Universal Or Specific Fit | Specific |
| Grade Type | Regular |
| Body Shape | Round |
| Inlet Type | 2 bolt welded flange |
| Outlet Type | 2 bolt welded flange |
| Body Height | 4.25 |
| Body Height | 4.250 |
| Body Length | 13 |
| Body Length | 13.000 |
| Body Width | 4.25 |
| Body Width | 4.250 |
| Inlet Quantity | 1 |
| Body Material | Stainless steel |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | Yes |
| Substrate Material | Ceramic |
| Overall Length | 37.125 |
| Air Tube | No |
| Air Tube Count | No |
| Converter Quantity | 1 |
| Inlet 1 Type | 2 bolt welded flange |
| Inlet Type | 2 bolt welded flange |
| Max Year Covered | 2002 |
| Min Year Covered | 1997 |
| Most Popular Make / Model | Pontiac grand prix |
| Most Popular Year | 2002 |
| Outlet 1 Type | 2 bolt welded flange |
| Outlet Type | 2 bolt welded flange |
| Oxygen Sensor Location | Post catalyst |
This part fits 29 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2002 | Buick | Regal | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) 2GMXV03.8043; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 2002 | Chevrolet | Impala | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) 2GMXV03.8043; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 2002 | Pontiac | Grand Prix | 3.8L | V6 | N/A | Dual System; CARB Executive Order D-182-45; Engine Family Number (EFN) 2GMXV03.8043; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 2001 | Buick | Regal | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) 1GMXV03.8043; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 2001 | Pontiac | Grand Prix | 3.8L | V6 | N/A | Dual System; CARB Executive Order D-182-45; Engine Family Number (EFN) 1GMXV03.8043; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 2000 | Buick | Regal | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) YGMXV03.8043; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 2000 | Buick | Regal | 3.8L | V6 | N/A | Engine Family Number (EFN) YGMXV03.8042; Not legal for sale or use in California. Legal for sale in other CARB-compliant states for use on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CARB Executive Order D-182-45; CalCat Colorado |
| 2000 | Chevrolet | Impala | 3.8L | V6 | N/A | Engine Family Number (EFN) YGMXV03.8042; Not legal for sale or use in California. Legal for sale in other CARB-compliant states for use on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CARB Executive Order D-182-45; CalCat Colorado |
| 2000 | Chevrolet | Monte Carlo | 3.8L | V6 | N/A | Engine Family Number (EFN) YGMXV03.8042; Not legal for sale or use in California. Legal for sale in other CARB-compliant states for use on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CARB Executive Order D-182-45; CalCat Colorado |
| 2000 | Pontiac | Grand Prix | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) YGMXV03.8043; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 2000 | Pontiac | Grand Prix | 3.8L | V6 | N/A | Engine Family Number (EFN) YGMXV03.8042; Not legal for sale or use in California. Legal for sale in other CARB-compliant states for use on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CARB Executive Order D-182-45; CalCat Colorado |
| 1999 | Buick | Regal | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) XGMXV03.8048; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1999 | Buick | Regal | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) XGMXV03.8051; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1999 | Buick | Regal | 3.8L | V6 | N/A | Engine Family Number (EFN) XGMXV03.8050; Not legal for sale or use in California. Legal for sale in other CARB-compliant states for use on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CARB Executive Order D-182-45; CalCat Colorado |
| 1999 | Oldsmobile | Intrigue | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) XGMXV03.8048; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1999 | Pontiac | Grand Prix | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) XGMXV03.8048; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1999 | Pontiac | Grand Prix | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) XGMXV03.8051; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1999 | Pontiac | Grand Prix | 3.8L | V6 | N/A | Engine Family Number (EFN) XGMXV03.8050; Not legal for sale or use in California. Legal for sale in other CARB-compliant states for use on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CARB Executive Order D-182-45; CalCat Colorado |
| 1998 | Buick | Regal | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) WGMXV03.8051; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1998 | Buick | Regal | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) WGMXV03.8048; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1998 | Oldsmobile | Intrigue | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) WGMXV03.8048; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1998 | Pontiac | Grand Prix | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) WGMXV03.8048; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1998 | Pontiac | Grand Prix | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) WGMXV03.8051; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1997 | Buick | Regal | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) VGM3.8V8G2EK; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1997 | Buick | Regal | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) VGM3.8V8G1FK; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1997 | Buick | Regal | 3.8L | V6 | N/A | Engine Family Number (EFN) VGM3.8V8GKFK; Not legal for sale or use in California. Legal for sale in other CARB-compliant states for use on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CARB Executive Order D-182-45; CalCat Colorado |
| 1997 | Pontiac | Grand Prix | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) VGM3.8V8G2EK; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1997 | Pontiac | Grand Prix | 3.8L | V6 | N/A | CARB Executive Order D-182-45; Engine Family Number (EFN) VGM3.8V8G1FK; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CalCat |
| 1997 | Pontiac | Grand Prix | 3.8L | V6 | N/A | Engine Family Number (EFN) VGM3.8V8GKFK; Not legal for sale or use in California. Legal for sale in other CARB-compliant states for use on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31605 and 31578; Direct Fit Type; CARB Executive Order D-182-45; CalCat Colorado |
* 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:
942876
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.