Dorman 674-018 front left exhaust manifold catalytic converter for the 1999-2003 Toyota Sienna V6 3.0L and other vehicles joins the manifold and converter in one piece. It collects exhaust from the cylinders and passes it through a ceramic catalyst substrate.
- One-piece stainless steel body with a ceramic substrate in the converter
- Kit with gaskets and downpipe hardware to simplify installation
- Flanged inlet with six mounting holes and flanged outlet with two
- Manufactured within strict tolerances for reliable longevity
Quick facts
- Part: Dorman 674-018 exhaust manifold catalytic converter
- Also called: exhaust manifold with integrated catalytic converter
- Fits: 1999-2003 Toyota Sienna V6 3.0L and other vehicles
- Position: Front left
- Material: Stainless steel
- Condition: New
A ticking or hissing from the engine bay, a rattle inside the converter or a check engine light can mean the unit has failed. Before you replace it, rule out a faulty oxygen sensor or a leaking exhaust gasket, since either one can set off a similar warning light or noise.
Fits
This direct-replacement unit is listed for a wide range of Toyota and Lexus models, including the 1999-2003 Toyota Sienna V6 3.0L, the 1998-2001 Toyota Camry V6 3.0L and the 1998-2004 Toyota Avalon V6 3.0L. The front left position takes one, and this listing is that single unit; any other position is ordered separately.
Specifications
Fit and size
- Position: Front left
- Overall length: 16.5 in
- Converter body length: 4 in
- Inlet: flanged, rectangular port, 6 mounting holes
- Outlet: flanged, round port, 2 mounting holes
Build and materials
- Type: One-piece
- Material: Stainless steel
- Substrate: Ceramic
- Finish: Natural
- Grade: Standard replacement
- CARB certified: No; New York certified: No
- Condition: New
- Country of origin: United States
In the box
One exhaust manifold catalytic converter, one inlet gasket, one outlet gasket, two studs and three nuts. Inlet mounting hardware, clamps and hangers are not included, so plan on new inlet fasteners.
Interchange: 105065287439074155 · 641204 · 18288 · 40564 · 50468 · 50795 · 2505220020 · 2505220030 · 2505220040 · 2505220080 · 2505220090 · 2505220100 · 2505220110 · 2505220120 · 2505220130 · 516015 · 16396
This part cross-references / interchanges with the following part numbers:
105065287439074155, 641204, 18288, 40564, 50468, 50795, 2505220020, 2505220030, 2505220040, 2505220080, 2505220090, 2505220100, 2505220110, 2505220120, 2505220130, 516015, 16396
Frequently Asked Questions
Does the Dorman 674-018 fit the 1999-2003 Toyota Sienna V6 3.0L?
Yes, Dorman 674-018 is a front left unit listed for the 1999-2003 Toyota Sienna V6 3.0L. If your car is not named on this page, check it in the "Vehicles it fits" section.
Is the Dorman exhaust manifold with integrated catalytic converter CARB compliant?
No. Dorman 674-018 is not CARB certified and not New York certified.
Are gaskets and studs included with this exhaust manifold catalytic converter?
Yes. It comes with an inlet gasket, an outlet gasket, two studs and three nuts. Inlet mounting hardware, clamps and hangers are not included.
What is this exhaust manifold catalytic converter made of?
The body is stainless steel with a ceramic substrate, built as a one-piece unit with a natural finish and flanged inlet and outlet.
How can I check this front left exhaust manifold catalytic converter for a leak?
With the engine off and cool, look for cracks, soot streaks at the flanges or loose studs. A shop can test the converter itself.
