Dorman Plastic Intake Manifold for Ford 5.4L V8 - Direct-Fit replacement kit with gaskets & thermostat

The Dorman 615-188 plastic intake manifold is a complete, USA-made replacement kit that restores proper fit and airflow on select 5.4L Ford trucks, SUVs and vans.

When an intake manifold on a Ford 5.4L V8 begins to leak, warp or fail, you need a direct-fit replacement that won’t require hours of modification or guesswork. Dorman’s 615-188 is designed and manufactured in the United States as a proven, improved take on the original OEM manifold. The kit arrives with the major hardware and seals needed for installation so you can replace the manifold and related components in fewer trips than sourcing separate parts.

How does this manifold differ from the factory part?

Dorman updated the design to reduce common failure points while preserving the factory fit and performance. Internal changes include integrated gaskets and an improved thermostat interface, which together lower the risk of air and coolant leaks that commonly affect older units.

• Integrated gasket pockets reduce head contact points compared with carrier-style gaskets.
• Updated thermostat design minimizes coolant seepage at the thermostat housing.
• Integrated PCV nipple ensures correct vacuum routing for emissions and idle control.

What comes in the 615-188 kit and why is it useful?

This is a full replacement package, not just the manifold shell. Including the necessary fittings and fasteners helps prevent extra downtime and avoids the frustration of missing parts during installation.

• Tough polymer intake manifold molded for precise alignment and durability.
• Auxiliary coolant fitting and O-ring included for the cooling circuit connection.
• Thermostat and specially designed gaskets to help ensure a leak-free seal.
• Self-tapping screws and a clamp for the coolant block-off cap for a complete install.

Will this part fit my vehicle and how do I confirm fitment?

Dorman designs this manifold to replace the original equipment on specified Ford applications with the 5.4L V8. Always verify fitment using the product’s garage tool and the Confirmed Fit indicator before purchasing to ensure compatibility with your model year and engine variant.

• Enter your vehicle details in the garage tool on the product page.
• Look for the Confirmed Fit bar; if an “i” icon appears, hover to read additional notes.
• Compare included hardware to the parts you remove to confirm match and completeness.

Who this is for: The Dorman 615-188 is aimed at DIY mechanics, independent repair shops and fleet technicians who need a reliable intake manifold replacement for Ford 5.4L V8 engines without dealership lead times or third-party quality concerns. It’s especially useful if you want a U.S.-made replacement that addresses common leak and thermostat interface failures while providing all necessary seals and fasteners in one box. If your vehicle exhibits vacuum leaks, coolant drips around the manifold, or you’re replacing a warped or cracked OEM manifold, this kit gives you a practical, time-saving solution.