Name: Electronic Throttle Body (ETB)
Brand: Hitachi
SKU: C7000434173HIT
Price: 327.46 USD

Essential Air Intakes for 2021 GMC Sierra 2500 HDs

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$327.46

The Hitachi Electronic Throttle Body is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:

OE Manufactured assemblies include Throttle Position sensors
Controls the volume of air flowing into the engine
Improves engine power, fuel economy and emissions performance

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$274.09

The Hitachi Electronic Throttle Body is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:

OE Manufactured assemblies include Throttle Position sensors
Controls the volume of air flowing into the engine
Improves engine power, fuel economy and emissions performance

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$156.99

Every CARDONE Remanufactured Electronic Throttle Body undergoes a proprietary disassembly, inspection and renewal process. Each component is meticulously evaluated and then renewed or replaced, depending on whether the component meets our stringent engineering standards. A proprietary cleaning process prevents the throttle bore surface from deformity, ensuring optimum airflow. Every unit is tested for all critical functions, including response time and air flow at multiple points to ensure peak performance.

Product Features:

Each unit is disassembled and meticulously inspected. Each component is inspected, remanufactured or replaced resulting in reliable and consistent performance.
A specialized component cleaning process prevents the throttle bore surface from being deformed, ensuring optimum air flow.
The high and low integrated throttle position sensors are tested to match O.E. characteristics throughout the entire operational range.
Final assemblies are tested for all critical functions, including response time and air flow at multiple points.
Each unit is guaranteed to function like the original.
As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80%.

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$217.99

When a vehicle idles roughly, displays a malfunction indicator lamp or sets DTCs, the cause might be oil ingress or dirt and carbon buildup in the electronic throttle body. This 100% new electronic throttle body is designed to match the fit and function of the original equipment throttle body on specified vehicles. It features a non-contact Hall effect sensor and proprietary Sensor Shield butterfly shaft seal to help prevent future failures.

Product Features:

Direct replacement – this 100% new electronic throttle body is designed to match the fit and function of the original equipment throttle body on specified vehicles
Ideal solution – engineered to help restore proper engine performance when the factory throttle body is malfunctioning due to oil ingress or dirt and carbon buildup, resulting in DTCs and rough idling
Upgraded construction – features a non-contact Hall effect sensor and proprietary Sensor Shield butterfly shaft seal to help prevent future failures
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$234.99

Original equipment throttle bodies often fail when moisture and oil intrusion foul the internal electronics. This Dorman OE FIX throttle body features Dorman Sensor Shield technology, a proprietary butterfly shaft seal to prevent future failures from this contamination.

Product Features:

Upgraded design – this plug-and-play replacement throttle body features a proprietary Sensor Shield butterfly shaft seal to prevent future failures
New construction – 100% new case aluminum, not remanufactured, for reliability and the convenience of no core charge
Rigorously tested – complies with Federal Motor Vehicle Safety Standards (FMVSS) and endurance-proven with over 1 million cycle tests
Trustworthy quality – vehicle try-on tested, and backed by a team of product experts in the United States and more than a century of automotive experience

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$364.18

The ACDelco GM Original Equipment Engine Intake Manifold is a GM-recommended replacement for your vehicle’s original component. The intake manifold evenly distributes the incoming engine air to each of the cylinders, ensuring the proper amount of air mixes with the proper amount of fuel. This original equipment engine intake manifold has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

Thermoplastic, aluminum, and cast iron intake manifolds available for a wide range of applications
Designs are enhanced and amended to incorporate updates, upgrades, and Technical Service Bulletins
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

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$572.99

This engine intake manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It is thoroughly tested to ensure top-quality OEM construction and superior reliability.

Product Features:

Ideal replacement – this intake manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
Reliable construction – tested to ensure top-quality OEM performance and durability.
Perfect fit – designed to match all specifications of the original part for convenient, trouble-free installation
Trustworthy design – built by the industry leader in aftermarket manifolds

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$349.11

Thermoplastic, aluminum, and cast iron intake manifolds available for a wide range of applications
Designs are enhanced and amended to incorporate updates, upgrades, and Technical Service Bulletins
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

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$97.12

WARNING: This item cannot be returned for a replacement or refund if opened! Mahle is the largest gasket manufacturer in the world, providing you original equipment design and quality and world class aftermarket service. Mahle does not just cut gaskets – it designs total system sealing approaches that utilize application engineering. This means that regardless of what application you are trying to seal, you can count on Mahle doing the research and testing to provide the optimum material and technology for that specific application – this systems sealing approach requires a variety of materials. No other gasket manufacturer offers the Application Engineered approach to sealing an engine. A variety of different gasket materials insure an engine gets the optimal seal. All gaskets are not created equal – Mahle gaskets prove it every day.

Product Features:

Original equipment design and quality
Head sets give you original equipment form, fit, and function
Utilizes OE equivalent or better materials in all head sets
Packaged in shrink wrapped tray
Every part you need to complete your gasket repair in one package unless otherwise stated

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$83.99

Withstanding harsh environments, while sealing fuel, air, coolant, and oil, is the challenging task for intake manifold gaskets. Victor Reinz product coverage includes upper manifold (plenum) gaskets, lower intake manifold gaskets and additional gaskets and seals as required. Victor Reinz engineers choose from the worlds broadest range of gasket materials and constructions, and select the best design for the specific engine, whether it is import, domestic, heavy cast iron or lightweight aluminum.

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
In recent years, the combination of longer service intervals and the introduction of OAT coolants (Organic Acid Technology) have placed additional burdens on the lifespan of molded intake manifold gaskets.

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$61.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted

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$22.49

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for repair applications
Unsurpassed quality you can trust
Validated for fit, form, and function
Includes all parts needed to complete the repair
Includes all parts needed to complete the repair

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$48.99

MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:

All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
Intake manifold gasket set contains manifold gasket(s) needed to replace an intake manifold.
The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package

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$42.76

Intake Manifold Gask

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$349.99

The K&N 57-3000 FIPK air intake system replaces the restrictive factory air filter and air intake. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engine’s RPM range. The 57-3000 air intake comes with a black-finish topped K&N high-flow air filter and a lidded heat shield that installs into the previous air box space. Air is directed through an aerodynamically engineered intake tube into the engine’s throttle body for a guaranteed power gain. The tube accommodates the factory mass air sensor and air filter restriction gauge. The oversized cone shaped air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake is relatively easy to install usually in 90 minutes or less using existing factory mounting points. The tools needed are a screwdriver, a ratchet set and several wrenches.

Product Features:

GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.
IMPROVED ENGINE SOUND: Hear the power under the hood.
WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants
EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.
DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required
HIGH QUALITY: Made in America.

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$349.99

K&N air intake systems are engineered for increased performance, outstanding durability, and sleek aesthetics – and are available in an assortment of finishes and powder coatings. K&N’s state-of-the-art High-Flow Air Filter helps to shield your engine from contaminants, while a meticulously engineered aerodynamic tube design contributes to a guaranteed increase in horsepower and torque. K&N air intake systems are designed to improve acceleration, towing, and throttle response while providing world class protection for your engine. Our intakes are dyno-tested and provide up to 50% more airflow compared to OEM intake systems. K&N intakes are easy to install and maintain with air filter cleaning required only every 100,000 miles.

Product Features:

GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.
IMPROVED ENGINE SOUND: Hear the power under the hood.
WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants
EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.
DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required
HIGH QUALITY: Made in America.

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$11.79

GM Genuine Parts Fuel Injection Throttle Body Seals are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These seals help provide an air- and liquid-tight connection between throttle body components, and are GM-recommended replacements for your vehicle’s original components. Replace this seal whenever you service the throttle body. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:

Helps prevent excess air form entering the intake
Helps seal the intake and throttle from the elements
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$31.99

Helps prevent excess air form entering the intake
Helps seal the intake and throttle from the elements
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

FAQs for 2021 GMC Sierra 2500 HD Air Intakes

Which Air Intakes are best-sellers for 2021 GMC Sierra 2500 HDs?

Out of 6 Air Intakes that fit 2021 GMC Sierra 2500 HDs, the following parts are the top sellers:

FI Throttle Body (12171832) – $222.06
Electronic Throttle Body: New (12541721) – $252.99
Performance Air Intake System (12580380) – $399.99

What’s the price range for 2021 GMC Sierra 2500 HD Air Intakes?

Air Intake prices for the 2021 GMC Sierra 2500 HD start at $11.79 and go up to $399.99 for the most premium parts.

What’s the average price of a Air Intake for a 2021 GMC Sierra 2500 HD?

The average price for Air Intakes for the 2021 GMC Sierra 2500 HD is $206.67. Keep in mind the variety of part types within our Air Intake category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Air Intakes for other GMC Sierra 2500 HD model years?

Yes, we currently carry Air Intakes for 24 model years of GMC Sierra 2500 HDs between 2001 and 2025. Air Intakes are bought most frequently for the following model years: 2023, 2022, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Air Intakes for my 2021 GMC Sierra 2500 HD?

The cheapest 2021 GMC Sierra 2500 HD Air Intakes we carry in stock are:

Fuel Injection Throttle Body O-Ring (12111245) – $11.79
Intake Manifold Gask (12129459) – $42.76
FI Throttle Body (12171832) – $222.06
Electronic Throttle Body: New (12541721) – $252.99
GM Original Equipment Intake Manifold Assembly (12073371) – $349.11

What types of Air Intakes do you sell for my 2021 GMC Sierra 2500 HD?

As of 2/5/25, these are some of the most in-demand types of Air Intakes for a 2021 GMC Sierra 2500 HD:

Can I get help with 2021 GMC Sierra 2500 HD Air Intake orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about GMC Air Intakes and more.

What is your return policy for GMC Sierra 2500 HD Air Intakes?

Advance Auto Parts keeps returns simple. For new GMC Sierra 2500 HD Air Intakes and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

2021 GMC Sierra 2500 HD Air Intakes

Hitachi – Electronic Throttle Body (ETB) (Part No.C7000434173HIT)

Hitachi – Electronic Throttle Body (ETB) (Part No.C7000934911HIT)

Cardone – Electric Throttle Body: Remanufactured (Part No.67-3008)

Dorman – Electronic Throttle Body: New (Part No.977-308)

Dorman – Electronic Throttle Body (Part No.977-376)

ACDelco – GM Original Equipment Intake Manifold Assembly (Part No.B1200580181ACD)

Dorman – Plastic Intake Manifold – Includes Gaskets (Part No.615-183)

ACDelco – GM Original Equipment Intake Manifold Assembly (Part No.B1200580202ACD)

Mahle – Mahle Intake Manifold Gasket Set (Part No.A8043431450MAH)

Victor Reinz – Engine Intake Manifold Gasket Set (Part No.11-10524-01)

Felpro – INTAKE MANIFOLD GASKET SET (Part No.MS 96587)

Felpro – INTAKE MANIFOLD GASKET SET (Part No.MS 96541)

MAHLE Original – Intake Manifold Gasket Set (Part No.MS19598)

Mahle – Intake Manifold Gask (Part No.A8040580030MAH)

K&N – Cold Air Intake: Adds Up To 15 Horsepower, With Million Mile Air Filter (Part No.57-3000)

K&N – Cold Air Intake: Adds Up To 22 Horsepower, With Million Mile Air Filter (Part No.57-3057)

GM Genuine Parts – Fuel Injection Throttle Body O-Ring (Part No.12639086)

GM Genuine Parts – SEAL,THROT BODY (Part No.217-2424)

K&N – Performance Air Intake System (Part No.63-3119)

GM Genuine Parts – Fuel Injection Throttle Body O-Ring (Part No.12639086)

ACDelco – GM Original Equipment Intake Manifold Assembly (Part No.B1200580202ACD)

Mahle – Intake Manifold Gask (Part No.A8040580030MAH)

Cardone – FI Throttle Body (Part No.C7000887541CAR)

Hitachi – Electronic Throttle Body: New (Part No.ETB0067)