Bolt in a right-side replacement with the DORMAN exhaust manifold 674-491, a cast-iron unit built to install like the original on the listed applications. It's a direct-fit for the 2018-2020 Ford F-150 and 2018-2021 Lincoln Navigator with the V6-3.5L engine, collecting exhaust gases from the cylinder head ports and channeling them into the downpipe.
Cast-iron construction: durable materials resist warping, cracking and leaking for long-lasting performance.
Build specs: metallic gray color, round ports, a 33 mm collector port diameter, 0.125 in tube wall thickness, and 11 mounting holes.
No oxygen sensor port: this manifold is not machined for an O2 sensor.
Kit contents: includes the exhaust manifold and 2 gaskets. Mounting hardware and a heat shield are not included — consult the vehicle service information for the correct fasteners and whether they may be reused.
If a cracked or leaking right-side manifold is behind an exhaust tick, hiss, or burnt smell on your F-150 exhaust manifold repair, this replaces it. Grade type: standard replacement. Country of origin: India.
Interchange: 662986 · JL7Z9430A · JL7Z9430B
This part cross-references / interchanges with the following part numbers:
662986, JL7Z9430A, JL7Z9430B
Frequently Asked Questions
What vehicles does the DORMAN exhaust manifold 674-491 fit?
It is listed for the 2018-2020 Ford F-150 and the 2018-2021 Lincoln Navigator with the V6-3.5L engine. Check the Buyer's Guide tab to confirm your vehicle.
Does this F-150 exhaust manifold include gaskets?
Yes. The kit ships with the exhaust manifold and 2 gaskets. Mounting hardware and a heat shield are not included.
What is the manifold made of?
Cast iron with a metallic gray color. The durable materials are made to resist warping, cracking and leaking.
Which side does this manifold fit?
It is the right-side exhaust manifold for the listed applications.
What are signs this exhaust manifold may need replacing?
A ticking or hissing exhaust that grows louder when cold, a burnt smell, or visible cracks can signal a leaking or cracked manifold. Diagnose the cause before replacing.
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe...
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe...
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe...
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe...
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe...
WARNING:
These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
