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DormanPart #: 673-838

Dorman 673-838 Catalytic Converter with Integrated Exhaust Manifold - Front
⚙️ 2 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$772.71Free Shipping
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*Free return shipping only qualifies if our fitment verification tool is used.
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✅ 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: Mazda, 6
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Dorman 673-838 Catalytic Converter with Integrated Exhaust Manifold - Front
| Brand | Dorman |
| Part Number | 673-838 |
| Color | Natural |
| Grade Type | Regular |
| California Air Resources Board (CARB) Certified | Yes |
| Inlet Gasket Included | Yes |
| Outlet Mounting Hole Quantity | 6 |
| Outlet Mounting Hardware Included | Yes |
| Converter Body Material | Stainless steel |
| CARB Executive Order Number | D-665-23 |
| Inlet Port Shape | Round |
| Package Contents | Exhaust manifold; 1 input gasket; 1 output gasket; 2 studs |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2004 | Mazda | 6 | 3.0L | V6 | Front | CARB Compliant: Yes; Sell Until Depleted; CARB Compliant: Yes |
| 2003 | Mazda | 6 | 3.0L | V6 | Front | CARB Compliant: Yes; Sell Until Depleted; CARB Compliant: Yes |
* 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:
452863AJ572050XC
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.