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OE Quality
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DormanPart #: 673-302
Dorman 673-302 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
$1,206.88Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
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*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: Honda, Civic
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? See all Catalytic Converter with Integrated Exhaust Manifold options
Dorman 673-302 Catalytic Converter with Integrated Exhaust Manifold
| Brand | Dorman |
|---|---|
| Part Number | 673-302 |
| Color | Natural |
| Finish | Natural |
| Finish | None |
| Type | One-piece |
| Tube Wall Thickness | 0.125 |
| Grade Type | Regular |
| Converter Body Length | 5 |
| Inlet Type | Flanged |
| Outlet Type | Flanged |
| Inlet Quantity | 1 |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | Yes |
| Substrate Material | Ceramic |
| Inlet Mounting Hole Quantity | 6 |
| Inlet Gasket Included | Yes |
| Inlet Mounting Hardware Included | No |
| Outlet Mounting Hole Quantity | 10 |
| Outlet Mounting Hole Quantity | 4 |
| Outlet Gasket Included | Yes |
| Outlet Mounting Hardware Included | Yes |
| Overall Length | 20 |
| Air Tube Count | 1 |
| Sensor Port Count | 1 |
| Converter Body Material | Stainless steel |
| CARB Executive Order Number | D-798-9 |
| New York Certified | Yes |
| Outlet Port Shape | Round |
| Inlet Port Shape | Round |
| CARB Compliant | Yes |
| Exhaust Manifold Inlet Port Shape | Oval |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2015 | Honda | Civic | 1.8L | L4 | N/A | CARB Compliant: Yes; CARB Compliant: Yes |
| 2014 | Honda | Civic | 1.8L | L4 | N/A | CARB Compliant: Yes; 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:
18190R1BA00
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.