Dorman 674-899 Exhaust Manifold

Brand Dorman 674-899
Material Cast iron
Color Natural
Port Shape Round
Mounting Hardware Included Yes
Grade Type Regular
Gasket Or Seal Included Yes
Heat Shield Included Yes
Package Contents Exhaust manifold; 1 manifold gasket; 1 flange gasket; 1 egr coole
Fits Dodge and Ram · 20 vehicles

OE direct replacement. Precision-engineered to match the fit and function of the original manifold.

Cast iron construction. Durably manufactured for dependable exhaust performance.

Complete repair kit. Includes gaskets, heat shield, and mounting hardware.

Cross-references 68002432AA for the same application. See all 1.

$557.85Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $557.85
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Free returns within 60 days if it doesn't fit when fitment is verified.

Dorman 674-899 Exhaust Manifold for Ram and Dodge

This Dorman exhaust manifold is precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It is built for direct replacement service on Ram 2500, Ram 3500, Ram 4000, and Dodge Ram 3500 applications, with the gaskets and downpipe hardware needed for a complete repair.

Key Features

  • Cast iron construction for durable exhaust service
  • Natural finish with round port shape
  • Includes heat shield for added thermal protection
  • Includes gasket and seal components for the repair
  • Mounting hardware included for installation
  • Direct replacement exhaust manifold, Part Number 674-899

Detailed Description

Dorman 674-899 is an exhaust manifold built to restore proper exhaust routing on select Ram and Dodge trucks. The cast iron design is matched to original fit and function, helping maintain correct sealing at the cylinder head and exhaust connection points. This part number 674-899 also includes the manifold gasket, flange gasket, EGR cooler gasket, bolts, nuts, and heat shield, making it a complete manifold replacement for the listed applications. This part cross-references OE number 68002432AA for the same application.

What It Helps Fix

  • Exhaust leaks at the manifold sealing surface
  • Cracked or warped original manifold housing
  • Noise from escaping exhaust gases
  • Failed gasket sealing at the manifold or flange
  • Heat-related damage around the exhaust manifold area

Installation Notes and Tips

Verify engine and vehicle application before installation. Compatible With 2012-2013 Ram 4000, 2012 Ram 2500, 2011-2012 Ram 3500, and 2007-2010 Dodge Ram 3500. Use the included gaskets and hardware during installation, and inspect the mating surfaces, studs, and fasteners for wear or damage before assembly. Proper torque sequence and exhaust alignment are important for sealing performance.

Quality Assurance

Dorman manufactures this exhaust manifold to match original equipment fit and function on the specified vehicles. The cast iron construction, included heat shield, and complete gasket and hardware package support a professional repair on Ram and Dodge exhaust systems.

This part fits 20 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeLitersCylindersNotes
2013Ram40006.7LL6
2012Ram25006.7LL6
2012Ram3500Cab & Chassis6.7LL6
2012Ram40006.7LL6
2012Ram4500
2012Ram5500
2011Ram3500Cab & Chassis6.7LL6
2011Ram4500
2011Ram5500
2010DodgeRam 3500Cab & Chassis
2010DodgeRam 40006.7LL6
2010DodgeRam 4500
2010DodgeRam 5500
2009DodgeRam 3500Cab & Chassis6.7LL6
2009DodgeRam 4500
2009DodgeRam 5500
2008DodgeRam 3500Cab & Chassis6.7LL6
2008DodgeRam 4500
2008DodgeRam 5500
2007DodgeRam 3500Cab & Chassis6.7LL6
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
68002432AA