1. Manifolds & Headers Offered
  2. sku: 6438894193724792
  3. DORMAN 674-425

DORMAN 674-425 Exhaust Manifold 194883186231

fits model: 1500, Silverado. make: Chevy. year: 2014–2018.

674-425 Dorman For Chevy Silverado 1500 2014-2018 Exhaust Manifold

( Brand: Dorman ), ( Part Type: Exhaust Manifold ), ( Manufacturer Part Number: 674-425 ), ( Product Type: Exhaust ), ( UPC: 194883186231 ), ( Fitment Type: Direct Replacement ), ( Partslink Number: 12631812 ), ( Compatible Make S : Chevrolet, Gmc ), ( Compatible Model S : Silverado 1500, Silverado 2500, Express 2500, Express 3500 ), ( Product Subtype: Exhaust Headers ), ( Engine Version: 262 Chevy 90-degree V6 ), ( Department: Replacement )

Review DORMAN Chevy Exhaust Manifold fits SILVERADO 1500 2014–2018

The Dorman 674-425 exhaust manifold is a premium aftermarket replacement component designed specifically for select Chevy Silverado 1500 models produced between 2014 and 2018. This exhaust manifold is engineered to restore the performance and efficiency of your vehicle's exhaust system, ensuring a smoother driving experience.

Constructed from high-quality materials, this exhaust manifold is designed to withstand the rigors of everyday use. Its durable cast iron construction ensures excellent heat dissipation, while its precision-engineered design guarantees a perfect fit and seamless integration with your vehicle's existing exhaust system.

The 674-425 exhaust manifold comes with all necessary gaskets and hardware for a hassle-free installation process. The gaskets are made from a high-temperature, compression-molded material that provides a leak-free seal, while the hardware is made from heat-treated steel for strength and durability.

This exhaust manifold is designed to meet or exceed original equipment manufacturer (OEM) specifications, ensuring optimal engine performance and longevity. By replacing a worn or damaged exhaust manifold with this Dorman part, you can restore your vehicle's exhaust system to its original condition, resulting in improved fuel efficiency, reduced emissions, and a more enjoyable driving experience.

Additionally, the Dorman 674-425 exhaust manifold is covered by a limited lifetime warranty, providing you with peace of mind and protection against any manufacturing defects. With its exceptional quality, precise fit, and easy installation, this exhaust manifold is an excellent choice for anyone looking to maintain or enhance their Chevy Silverado 1500's performance.

Dorman 674-425 Exhaust Manifold for Chevy Silverado 1500 (2014-2018): A Detailed Analysis

Introduction:

The Dorman 674-425 exhaust manifold is an aftermarket replacement part designed for Chevy Silverado 1500 models from 2014 to 2018. This component is crucial for proper engine function, as it collects exhaust gases from the cylinder heads and directs them to the exhaust system. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this part.

Pros:

1. Cost-effective: The Dorman 674-425 is generally priced lower than OEM (Original Equipment Manufacturer) alternatives, making it an attractive option for budget-conscious consumers.

2. Availability: Aftermarket parts like this one are often more readily available than their OEM counterparts, allowing for quicker repairs and potential savings on labor costs.

3. Functional fit: Dorman exhaust manifolds are engineered to fit and function similarly to their OEM counterparts, ensuring compatibility and reliable performance.

4. Warranty: The Dorman 674-425 exhaust manifold comes with a limited lifetime warranty, providing peace of mind for consumers.

Cons:

1. Potential for lower quality: Aftermarket parts may not always meet the same quality standards as OEM components. While the Dorman 674-425 is designed to function similarly, some consumers have reported issues with the material or fit.

2. Lack of OEM certification: Aftermarket parts do not carry the same certifications as OEM components, which may be a concern for some consumers seeking the highest level of performance and durability.

3. Potential for compatibility issues: Although the Dorman 674-425 is designed to fit various Chevy Silverado models, there is a chance that it may not be a perfect match for every vehicle. It is essential to verify the compatibility before purchasing.

Conclusion:

The Dorman 674-425 exhaust manifold for Chevy Silverado 1500 (2014-2018) offers several advantages, including cost-effectiveness, availability, functional fit, and a limited lifetime warranty. However, it also comes with potential downsides, such as the possibility of lower quality, lack of OEM certification, and potential compatibility issues. Ultimately, the decision to purchase this aftermarket part depends on the individual consumer's priorities, budget, and specific vehicle requirements.

Recommendation:

For those seeking a cost-effective and readily available solution for their Chevy Silverado 1500's exhaust manifold, the Dorman 674-425 may be an excellent choice. However, it is crucial to verify compatibility and consider the potential risks associated with aftermarket parts before making a purchase. Always consult a professional mechanic or a trusted automotive parts supplier for advice on the best option for your specific situation.

part # 674425 prices

  • $125.99-$154.52

specifications maniheader:

  • for models: 1500, Silverado
  • for makes: Chevy
  • for years: 2014-2018
  • brand: Dorman
  • part type: Exhaust Manifold
  • manufacturer part number: 674-425
  • product type: Exhaust
  • upc: 194883186231
  • fitment type: Direct Replacement
  • partslink number: 12631812
  • compatible make s : Chevrolet, Gmc
  • compatible model s : Silverado 1500, Silverado 2500, Express 2500, Express 3500
  • product subtype: Exhaust Headers
  • engine version: 262 Chevy 90-degree V6
  • department: Replacement

returns maniheader:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted

shipping maniheader:

  • cost: $16.00
  • carrier: FedEx
  • type: Fixed
  • service: FedEx Ground or FedEx Home Delivery
  • class: Standard
  • transit: 4-7 Days

general maniheader:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers
  • condition: New

seller maniheader:

  • # reviews: 125322
  • rating: 97.4%

payments maniheader:

  • wallet: Apple-pay
  • credit card: Visa
  • other

offer maniheader:

  • quantity: 2
  • started: June 21, 2025
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
for models: 1500, silverado, for makes: chevy, for years: 2014-2018, part type: exhaust manifold, product type: exhaust, fitment type: direct replacement, partslink number: 12631812, compatible make s: chevrolet, gmc, compatible model s: silverado 1500, silverado 2500, express 2500, express 3500, product subtype: exhaust headers, engine version: 262 chevy 90-degree v6, department: replacement,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, sku: 6438894193724792,

Dorman 674-425 Is Similar To:

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5 offers $125.99–$154.52 USD
  • Offer #1: $125.99 price + free delivery = $125.99* total. It includes all necessary gaskets and downpipe hardware for a complete repair. This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles.FREE SHIPPING
  • Offer #2: $146.55 price + free delivery = $146.55* total. LEFT SIDE is the DRIVER SIDE. RIGHT is the PASSENGER SIDE.FREE SHIPPING
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  • Offer #5: $99.00 price + free delivery = $99.00* total. Comes with what and is shown in the photos. The Dorman Exhaust Manifold is a high-quality car part designed for durability and reliability.FREE SHIPPING