Dorman 674-685 Exhaust Manifold - Right

OE-Style Exhaust Manifold for Ram Right Side

This Dorman exhaust manifold is engineered to match the fit and function of the original part on specified Ram applications. Built from cast iron with a natural finish, it includes the gasket, heat shield, and downpipe hardware needed for a complete exhaust repair.

Compatible with Ram 1500, Ram 2500, Ram 3500, Ram 1500 Classic, and Ram 4000 right-side applications, Part Number 674-685 is a direct-fit replacement for vehicles that need a dependable exhaust manifold service part.

Key Features

• Cast iron construction for exhaust heat durability
• Natural finish
• Irregular port shape to match the original manifold design
• No oxygen sensor port
• Heat shield included
• Gasket or seal included for repair completeness
• Mounting hardware included
• Includes 1 exhaust manifold, 1 inlet gasket, 2 bolts, and 2 nuts

Detailed Description

Dorman 674-685 is a right exhaust manifold designed for OE-style replacement on select Ram trucks and chassis applications. The cast iron body helps provide the strength expected in high-temperature exhaust service, while the included gasket, heat shield, and downpipe hardware support a complete manifold replacement. This part cross-references 5045486AA for the same application.

Use this manifold when servicing a Ram 1500 right exhaust manifold, a Ram 2500 right exhaust manifold, or a Ram 3500 right exhaust manifold on the listed model years. It is also listed for Ram 1500 Classic and Ram 4000 right-side applications.

What It Helps Fix

• Exhaust leaks at the manifold-to-cylinder-head sealing surface
• Cracked or warped manifold housing
• Broken or missing manifold-to-downpipe fasteners
• Noise from a leaking right-side exhaust manifold
• Failed sealing components during exhaust repair

Installation Notes and Tips

Fits 2013-2018 Ram 1500, right; 2014-2021 Ram 2500, right; 2013-2020 Ram 3500, right; 2019-2024 Ram 1500 Classic, right; and 2019-2024 Ram 4000, right. Verify the right-side application and compare the original manifold, port layout, and sensor provisions before installation. Clean the mounting surfaces thoroughly and replace any damaged fasteners or sealing surfaces as needed. Part Number 674-685 should be matched to the vehicle’s exact engine and exhaust configuration listed in the fitment data.

Quality Assurance

This Dorman exhaust manifold is precision-engineered and manufactured to match original fit and function on the specified vehicles. It is built as a regular-grade replacement part for exhaust system repair on Ram applications.