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DormanPart #: 673-640

Dorman 673-640 Catalytic Converter with Integrated Exhaust Manifold - Left
⚙️ 8 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$1,032.55Free 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: Lexus, GS300 and IS250
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Dorman 673-640 Catalytic Converter with Integrated Exhaust Manifold - Left
| Brand | Dorman |
| Part Number | 673-640 |
| Color | Natural |
| Finish | Natural |
| Type | One-piece |
| Grade Type | Regular |
| Inlet Type | Flanged |
| Outlet Type | Flanged |
| Inlet Quantity | 3 |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | Yes |
| Substrate Material | Ceramic |
| Inlet Mounting Hole Quantity | 5 |
| Inlet Gasket Included | Yes |
| Inlet Mounting Hardware Included | Yes |
| Outlet Mounting Hole Quantity | 2 |
| Outlet Gasket Included | Yes |
| Outlet Mounting Hardware Included | Yes |
| Overall Length | 12 |
| Air Tube Count | 0 |
| 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 | Round |
| Package Contents | 1 exhaust manifold; 1 input gasket; 1 output flange |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2012 | Lexus | IS250 | AWD | 2.5L | V6 | Left | CARB Compliant: Yes; CARB Compliant: Yes |
| 2011 | Lexus | IS250 | AWD | 2.5L | V6 | Left | CARB Compliant: Yes; CARB Compliant: Yes |
| 2010 | Lexus | IS250 | AWD | 2.5L | V6 | Left | CARB Compliant: Yes; CARB Compliant: Yes |
| 2009 | Lexus | IS250 | AWD | 2.5L | V6 | Left | CARB Compliant: Yes; CARB Compliant: Yes |
| 2008 | Lexus | IS250 | AWD | 2.5L | V6 | Left | CARB Compliant: Yes; CARB Compliant: Yes |
| 2007 | Lexus | IS250 | AWD | 2.5L | V6 | Left | CARB Compliant: Yes; CARB Compliant: Yes |
| 2006 | Lexus | GS300 | AWD | 3.0L | V6 | Left | CARB Compliant: Yes; CARB Compliant: Yes |
| 2006 | Lexus | IS250 | AWD | 2.5L | V6 | Left | 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:
1715031040
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.