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DormanPart #: 674-070

Dorman 674-070 Catalytic Converter with Integrated Exhaust Manifold
⚙️ 2 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$785.50Free 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: Mazda, 3 and 3 Sport
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Dorman 674-070 Catalytic Converter with Integrated Exhaust Manifold
| Brand | Dorman |
| Part Number | 674-070 |
| Color | Natural |
| Type | One-piece |
| Tube Wall Thickness | 0.125 |
| Grade Type | Regular |
| Converter Body Length | 8 |
| Inlet Type | Flanged |
| Outlet Type | Flanged |
| Inlet Quantity | 1 |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | No |
| Substrate Material | Ceramic |
| Inlet Mounting Hole Quantity | 7 |
| Inlet Mounting Hardware Included | No |
| Outlet Mounting Hole Quantity | 2 |
| Outlet Gasket Included | Yes |
| Outlet Mounting Hardware Included | Yes |
| Overall Length | 35 |
| Air Tube Count | 0 |
| Sensor Port Count | 2 |
| Converter Body Material | Stainless steel |
| New York Certified | No |
| Outlet Port Shape | Round |
| Inlet Port Shape | Round |
| Package Contents | 1 inlet gasket; 1 outlet gasket; 1 stud; 3 nuts; 15 bolts; 15 wa |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | Mazda | 3 | 2.5L | L4 | N/A | CARB Compliant: No; wo/California Emissions; CARB Compliant: No |
| 2010 | Mazda | 3 Sport | 2.5L | L4 | N/A | CARB Compliant: No; wo/California Emissions; CARB Compliant: No |
* 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:
51440L5202050XE
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.