Dorman 674-555 left exhaust manifold for the 1999-2008 Ford F-150 V6 4.2L and other vehicles collects exhaust gas from the engine's cylinders and carries it to the downpipe. This Dorman exhaust manifold is built to match the original manifold's fit and function on the vehicles it is listed for.
- Part of the Dorman OE Solutions line
- Cast iron construction that resists warping, cracking and leaking
- Round port shape
- Sold as a kit with the manifold gasket and downpipe hardware for a complete repair
Quick facts
- Part: Dorman 674-555 exhaust manifold
- Fits: 1999-2008 Ford F-150 V6 4.2L and other vehicles
- Position: Left
- Material: Cast iron
- Condition: New
A ticking noise at cold start, an exhaust smell or a visible crack in the manifold can mean a leak at the manifold or its gasket. Before you replace the manifold, rule out a loose downpipe connection, since the same ticking or smell can come from there. Look the manifold over only with the engine off and cool.
Fits
It is listed for a wide range of Ford models, including the 1999-2008 Ford F-150 V6 4.2L, the 2004 Ford F-150 Heritage V6 4.2L and the 2003 Ford E-150 V6 4.2L. This listing is one manifold for the left side; the left position takes one, and the other side is ordered separately. Open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Position: Left
- Quantity: 1 for the left position
- Port shape: Round
Build and materials
- Material: Cast iron
- Grade: Standard replacement
- Condition: New
- Country of origin: China
In the box
One exhaust manifold, one manifold gasket, two studs and two nuts. A heat shield is not included, and the old heat shield fasteners may not be reusable, so plan on new ones.
Interchange: 24056704530728266 · 34485119201191136 · 101281 · 663050 · 5L3Z9431A · XL3Z9431AA
This part cross-references / interchanges with the following part numbers:
24056704530728266, 34485119201191136, 101281, 663050, 5L3Z9431A, XL3Z9431AA
Frequently Asked Questions
Is this the right F-150 exhaust manifold for a 1999-2008 Ford F-150 V6 4.2L?
Yes, Dorman 674-555 is listed for the 1999-2008 Ford F-150 V6 4.2L as the left-side manifold. Open the "Vehicles it fits" section to check other models and engines.
Does this Dorman manifold come with a gasket and hardware?
Yes. The kit includes the exhaust manifold, one manifold gasket, two studs and two nuts. A heat shield is not included.
What is the Dorman 674-555 exhaust manifold made of?
Dorman 674-555 is made of cast iron and has round ports. It is a standard replacement grade manifold.
How can I tell if a left exhaust manifold is leaking or cracked?
Ticking at cold start, an exhaust smell or a visible crack can mean a manifold or gasket leak. Inspect the manifold only with the engine off and cool.
Does Dorman 674-555 replace part number 5L3Z9431A?
Yes, 5L3Z9431A is one of the numbers this manifold replaces, along with XL3Z9431AA and 101281.
