1. Automotive Used Intake Manifolds Items
  2. sku: 10295394480569563
  3. GMC 637316

GMC 637316 Lower Right Engine Intake Manifold 6.6L

fits model: 3500, Sierra. make: Gmc. year: 2021.

637316 Gmc Used Lower Right Engine Intake Manifold Fits 2021 Sierra 3500 Pickup 6.6l L

( Manufacturer Warranty: 90 Day ), ( Core Charge: 1.00 Which Is Included In The Total Price ), ( Manufacturer Part Number: 637316 ), ( Genuine Oem: No ), ( Interchange Item Code: 329 ), ( Color: Silver ), ( Type: Engine Intake Manifold ), ( Partout Id: A-97454868 )

Review GMC Used Lower Right Engine Intake Manifold Pickup 6.6l fits SIERRA 3500 2021

The GMC 637316 Lower Right Engine Intake Manifold is a crucial component of the powertrain system in select 2021 Sierra 3500 models with a 6.6L Duramax diesel engine. This intake manifold is meticulously engineered to optimize the fuel delivery and air intake process, ensuring efficient and reliable engine performance.

Designed with a robust construction, this intake manifold features a high-strength aluminum alloy construction, ensuring durability and resistance to corrosion and thermal stress. The manifold's design includes a precise array of intake ports, each optimally positioned to ensure an ideal fuel-air mixture for each cylinder.

The intake ports are engineered with a smooth, streamlined design to minimize turbulence and promote efficient fuel-air mixing. This design feature helps to ensure that the engine receives an optimal fuel-air mixture, leading to improved combustion efficiency, increased power output, and reduced emissions.

The intake manifold also features integrated sensors and connectors, allowing for seamless communication between the engine control module (ECM) and the intake system. This integration enables real-time monitoring of engine performance, optimizing fuel delivery and air intake for each driving condition.

Additionally, the manifold's design includes integrated coolant passages that circulate engine coolant through the intake ports. This feature helps to maintain consistent intake air temperature, ensuring optimal engine performance in various driving conditions.

The GMC 637316 Lower Right Engine Intake Manifold is a meticulously engineered component that plays a crucial role in the performance of the 2021 Sierra 3500's 6.6L Duramax diesel engine. With its robust construction, optimized intake port design, and integrated sensors and coolant passages, this intake manifold delivers efficient fuel delivery, improved combustion efficiency, and reliable engine performance.

Buying a new lower right engine intake manifold (GMC Part Number: 637316) for a 2021 Sierra 3500 with a 6.6L Duramax engine involves weighing several pros and cons to make an informed decision.

Pros:

1. OEM Compatibility: This intake manifold is a direct fit from the original equipment manufacturer (GMC). It ensures proper engine performance and compatibility.

2. Improved Performance: A new intake manifold can improve engine efficiency, power, and fuel economy by reducing air leaks and ensuring proper air/fuel mixture.

3. Durability: A new intake manifold is built to last, offering better reliability and longevity compared to a used or rebuilt part.

4. Warranty: GMC's OEM parts usually come with a warranty that covers defects and issues, providing peace of mind to the customer.

Cons:

1. Cost: A new intake manifold is a significant investment. The cost may be higher than used or rebuilt alternatives.

2. Installation Complexity: Installing an engine intake manifold can be a difficult process, requiring specialized tools and expertise. It is recommended to have it installed by a professional mechanic.

3. Availability: Availability of OEM parts can vary, depending on the dealership or supplier. It may take some time for the part to be shipped and installed.

Ending Conclusion:

Buying a new lower right engine intake manifold (GMC Part Number: 637316) for a 2021 Sierra 3500 with a 6.6L Duramax engine involves a significant investment. However, the benefits of OEM compatibility, improved performance, durability, and the peace of mind provided by the warranty can outweigh the cons. If you value the assurance of a new part and the performance benefits it brings, then purchasing a new intake manifold may be the best choice for you.

Recommendation:

If you decide to proceed with purchasing a new intake manifold, be sure to order it from a trusted GMC dealership or supplier. Additionally, consider having it installed by a professional mechanic to ensure proper installation and function.

Details:

Diesel lower R. All parts are covered by warranty. This part fits vehicles made in the following years 2017 ,2018,2019,2020. Parts go back into cars rather than landfill.

Every part is cleaned, tested and inspected by experts. Unless specified as Universal this is a direct fit Engine Intake Manifold. Original parts mean a perfect fit.

part #: 637316 price

  • $150.98

specifications inputmanifolds:

  • for models: 3500, Sierra
  • for makes: Gmc
  • for years: 2021
  • manufacturer warranty: 90 Day
  • core charge: 1.00 Which Is Included In The Total Price
  • manufacturer part number: 637316
  • genuine oem: No
  • interchange item code: 329
  • color: Silver
  • type: Engine Intake Manifold
  • partout id: A-97454868

offer inputmanifolds:

  • started: November 5, 2025
  • options: Ship-to-home
  • best offers: True
  • availability: In Stock
  • sold: 0
  • quantity: 1

returns inputmanifolds:

  • policy: Returns Accepted
  • time: 60 Days
  • paid by: Seller

payments inputmanifolds:

  • other
  • wallet: Paypal
  • credit card: Discover

seller inputmanifolds:

  • rating: 98.0%
  • city: Cape Girardeau, Missouri
  • # reviews: 1006

general inputmanifolds:

  • condition: Used
  • Car Truck Parts Accessories > Air Fuel Delivery > Intake Manifolds

shipping inputmanifolds:

  • cost: $0.00
  • transit: 3-8 Days
  • carrier: USPS
  • service: USPS Priority Mail
  • type: Fixed
  • class: Expedited
for models: 3500, sierra, for makes: gmc, for years: 2021, manufacturer warranty: 90 day, core charge: 1.00 which is included in the total price, genuine oem: no, interchange item code: 329, type: engine intake manifold, partout id: a-97454868,
manufacturer: gmc, category: auto parts > car truck parts accessories > air fuel delivery > intake manifolds, color: silver, sku: 10295394480569563,

Gmc 637316 Is Similar To:

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1 offer $150.98 USD
  • Used. Offer #1 priced at $150.98 + $0.00 delivery = $150.98* total. diesel lower R Unless specified as Universal this is a direct fit Engine Intake Manifold.FREE SHIPPING

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