HomeExhaust > Exhaust ManifoldsDorman 674-858XD Exhaust Manifold - Right
Part #: 674-858XD

Dorman 674-858XD Exhaust Manifold - Right

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Durable Cast Iron Exhaust Manifold for Reliable Performance

The Dorman 674-858XD exhaust manifold is engineered to provide a durable and efficient exhaust flow solution for select vehicle makes and models. Constructed from cast iron with a black finish, this manifold offers strength and heat resistance for consistent operation under demanding conditions.

  • Made from robust cast iron material for long-lasting durability
  • Black color finish for corrosion resistance and heat management
  • Round port shape designed to optimize exhaust gas flow
  • Includes a heat shield to protect surrounding components from excessive heat
  • Comes with a manifold gasket, 3 studs, and 3 nuts for secure mounting
  • Features six mounting holes for precise fitment
  • Tube wall thickness of 5 mm for enhanced structural integrity

Technical Details and Construction

The Dorman 674-858XD exhaust manifold is crafted from cast iron, a material known for its ability to withstand high temperatures and resist cracking over time. The black finish adds an extra layer of protection against rust and corrosion. Its round port shape is designed to facilitate smooth exhaust gas flow, which can help maintain engine efficiency. This manifold does not include an oxygen sensor port, so it is intended for applications where the sensor is located elsewhere in the exhaust system. The included heat shield helps to reduce heat transfer to nearby engine components, improving overall engine bay temperature management.

Compatible Vehicles and Applications

This exhaust manifold is compatible with various vehicle makes and models that require a cast iron manifold with six mounting holes and a round port design. It is suitable for applications where a regular grade exhaust manifold is specified. The Dorman 674-858XD is ideal for replacing worn or damaged manifolds on vehicles that match these specifications, helping to restore proper exhaust flow and engine performance.

  • Replaces cracked or warped exhaust manifolds
  • Addresses exhaust leaks causing noise or reduced engine efficiency
  • Restores proper exhaust gas routing to reduce emissions
  • Helps resolve overheating issues related to manifold failure
  • Supports engine performance by maintaining exhaust backpressure

Installation Notes and Tips

When installing the Dorman 674-858XD exhaust manifold, ensure all mounting surfaces are clean and free of debris to achieve a proper seal. Use the included gasket and mounting hardware to secure the manifold firmly. Torque the mounting nuts to the vehicle manufacturer’s specifications to prevent leaks and ensure durability. Since this manifold does not have an oxygen sensor port, verify the sensor location on your vehicle before installation.

Quality Assurance and Warranty

Dorman manufactures this exhaust manifold to meet or exceed OEM standards for fit, form, and function. The cast iron construction and included heat shield contribute to its reliability in demanding conditions. While specific warranty details are not provided here, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Consult the product packaging or Dorman’s official resources for exact warranty terms.

BrandDorman
Part Number674-858XD
MaterialCast iron
ColorBlack
Port ShapeRound
Oxygen Sensor PortNo
Tube Wall Thickness5
Mounting Hardware IncludedYes
Grade TypeRegular
Gasket Or Seal IncludedYes
Mounting Hole Quantity6
Heat Shield IncludedYes
Package ContentsExhaust manifold; 1 manifold gasket; 3 studs; 3 nuts

This part fits 0 vehicles. Search below:

YearMakeModelPositionNotes

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

125706708125706700

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.