Dorman 03430 Exhaust Manifold Hardware Kit

Exhaust Manifold Hardware Kit for OE-Style Repair

Dorman 03430 is an exhaust manifold hardware kit built to match the original fasteners used to secure the exhaust manifold to the engine on specified vehicles. It uses steel studs and steel nuts for a standard replacement solution on Ford and Lincoln applications that need dependable exhaust manifold retention.

Key Features

• OE-style exhaust manifold hardware for direct replacement use
• Steel studs with a 10.9 grade for strength and consistent clamping
• Steel nuts with a black finish
• M8-1.25 thread size on both ends for the listed applications
• Standard replacement construction for service repairs
• Matches original hardware requirements for specified Ford Expedition, Ford F-150, and Lincoln Navigator applications

Detailed Description

This Dorman exhaust manifold hardware kit, part number 03430, is made to replace the original fasteners used at the exhaust manifold-to-engine connection. The kit is built from steel and follows the original thread specification, helping restore proper fastening on vehicles such as the Ford Expedition, Ford F-150, Ford F-250 Super Duty, Ford F-350 Super Duty, Ford Mustang, and Lincoln Navigator. It is also listed for additional Ford and Lincoln applications including the Crown Victoria, Grand Marquis, Explorer Sport Trac, Mark LT, Aviator, Blackwood, and F-350.

This part cross-references Ford W701706S2 for the same application.

Common Repair Uses

• Broken or missing exhaust manifold studs
• Loose manifold-to-engine fastening at the cylinder head
• Exhaust leaks at the manifold flange
• Corroded or heat-damaged original hardware
• Service replacement during manifold removal or engine repair

Installation Notes and Tips

Verify the vehicle’s engine and emissions configuration before ordering, since fitment varies by model year and application notes. Confirm M8-1.25 thread requirements and compare the original hardware length to the listed dimensions before installation. Clean the threaded holes and mating surfaces thoroughly, and follow the vehicle manufacturer’s torque sequence and torque specification during assembly.

Quality Assurance

Dorman manufactures this hardware kit as a standard replacement part that matches the original hardware requirements for the listed vehicles. The steel construction and OE-style fitment support reliable service on repair jobs where exhaust manifold retention is critical.