Dorman Passenger Side Exhaust Manifold Kit for Ram 1500/2500/3500 — Includes Gaskets & Downpipe Hardware

Complete passenger-side exhaust manifold kit by Dorman engineered to match OE fit and function, including all gaskets and downpipe hardware for a direct repair on specified Ram trucks.

This Dorman 674-685 passenger side exhaust manifold kit is a repair-ready replacement made to restore exhaust routing and sealing on compatible Ram pickup models. It arrives with the manifold, all required gaskets and the downpipe mounting hardware so you can perform a single, complete repair without sourcing extra parts. Designed and manufactured by Dorman to resist the common failure modes of original manifolds, this kit aims to deliver long-term durability and a proper fit.

Will this manifold fit my Ram truck?

This kit is compatible with a range of Ram model years and trims; always verify exact fitment before ordering. Use your vehicle make, model and trim in the fitment/garage tool to confirm compatibility with the listed years.

• Compatible with Ram 1500 Classic (2019–2020) and Ram 1500 (2013–2018)
• Also fits Ram 2500 (2014–2020), Ram 3500 (2013–2020) and Ram 4000 (2019–2020)
• Includes hardware to attach to the vehicle’s downpipe for the specified applications

What components come in the Dorman 674-685 kit?

The kit contains the passenger side exhaust manifold plus the gaskets and downpipe fasteners needed to complete the installation. Receiving everything at once avoids delays and reduces the risk of missing parts during the repair process.

• Passenger-side exhaust manifold manufactured to match OEM mounting points
• All necessary exhaust gaskets included to ensure proper sealing
• Downpipe hardware supplied for direct attachment to the vehicle

How does this manifold stand up to heat and vibration?

Dorman designs aftermarket manifolds to resist warping, cracking and leaks that can occur under repeated thermal cycles and engine vibration. The materials and manufacturing method are chosen to hold up in heavy-duty operating conditions common to trucks.

• Durable construction resists warpage from repeated heating and cooling
• Engineered to reduce stress points that cause cracking over time
• Sealing gaskets included to prevent exhaust leaks at the flange

How should I prepare for installation and what tools are required?

Basic mechanical skills and standard hand tools are usually sufficient for replacing the passenger-side exhaust manifold, but an experienced technician or shop installation is recommended if you lack familiarity with exhaust systems. Inspect adjoining components like the downpipe, catalytic converter flanges and mounting studs during replacement to ensure no hidden damage will affect the new part.

• Prepare standard sockets, torque wrench and penetrating oil for fasteners
• Lift equipment or stable jack stands recommended for safe access under the vehicle
• Verify included gaskets and hardware before starting the job to avoid rework

Who this is for: This Dorman passenger-side exhaust manifold kit is intended for owners, fleet managers and repair shops performing a direct replacement on compatible Ram trucks that need a durable, OEM-like manifold plus the gaskets and downpipe hardware in one package. Choose this kit if you want a complete repair solution built to match the original fit, reduce downtime by avoiding separate parts orders, and restore proper exhaust sealing and routing on the affected passenger side of your Ram pickup.