2020 GMC Sierra 2500 HD Engine Parts

Below you will find various in-demand GMC Engine Parts, components and accessories for your 2020 Sierra 2500 HD. Advance Auto Parts has popular Sierra 2500 HD parts like Engine Timing Parts, Camshafts, Engine Gaskets and Seals and more. You’ll also find aftermarket and OEM Engine Parts for other Sierra 2500 HD model years including 2014, 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023 and more. Select a category of 2020 GMC Sierra 2500 HD Engine Parts below and start saving instantly.

Please Select your Vehicle to See Exact Fit Parts

Popular 2020 GMC Sierra 2500 HD Engine Parts Categories

Engine Valve Lifters

Valve Cover Gaskets

Engine Valve Lifter Guides

Oil Pan Gaskets

Camshaft Position Sensors

Cylinder Head Bolt Sets

Turbocharger Boost Sensors

Engine Oil Dip Stick Tube O-Rings

Crankshaft Position Sensors

Timing Cover Gasket Sets

Engine Mounts

Engine Oil Cooler Accessories

Computer Control Relays

Turbocharger Intercooler Pipes

Timing Chains

Camshaft Seals

Timing Crank Gears

Camshaft Thrust Plate and Bearings

Fuel Pump Gaskets

Fuel Tank Sending Unit Gaskets

Engine Oil Pan Seals

Engine Valve Cover O-Rings

Valve Train Set Up Spring Set

Essential Engine Parts for 2020 GMC Sierra 2500 HDs

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$0.99

Engine Oil Dipstick Tube O-Ring

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$14.99

GM Genuine Parts Engine Valve Lifter Guide are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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:

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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$23.99

Carquest Premium camshaft position sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium crankshaft and camshaft sensors are engineered with technology that provides increased output accuracy through a stronger, more consistent signal. Our sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium crankshaft and camshaft position sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Engineered with technology that provides increased accuracy with a stronger, more consistent signal
Sensors are based on proven hall effect and variable reluctance technology
Includes OE-style brackets, hold downs, hardware, or spacers as needed for each application.
O-rings and seals are included if required.
Weather-tight connectors prevent leaks and corrosion for better reliability.
Extensive design validation testing and 100% end-of-line tested.
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$24.99

With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

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.

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$28.99

Sprocket Made From High Alloy Material. Sprocket Teeth Are Heat Treated. Precision Tooth Form To Assure Proper Chain Engagement, And Precise Keyway To Tooth Timing.

Product Features:

Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Refer to our online catalog for detailed application-specific information

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$121.99

Anchor 3290 This mount supports the engine and dampen vibration. Each mount is specifically engineered and designed to OE standards. Natural and SBR rubber provide maximum life and performance. Steel fasteners are heat treated grade 5 bolts. A special bonding agent is used to ensure a rubber to metal bond. Rubber material is mixed to specific Durometer, hardness.

Product Features:

MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
SUPERIOR BOND: A special Chemlok bonding agent is used to ensure a superior rubber-to-metal bond.
HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
For Years: 2011-2016
Weight approx: 5 Lbs
Part Group: 3290, 3290

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$92.99

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
Cylinder head bolt set (GS) contains the head bolts necessary to replace one cylinder head. Torque-to-yield bolts cannot be reused, new fasteners ensure proper sealing load when used with new MAHLE Original head gaskets.
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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$13.99

Manufactured from high quality components by an OE Supplier. Proper fit and sealing prevents oil loss. Designed to OEM specifications. High quality finish is designed to compliment the engine compartment appearance.

Product Features:

Provides proper seal to ensure leak prevention
Stops engine blow by
High quality construction
Meets all OEM specifications

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$6.99

Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

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

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$51.99

Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.

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$74.99

Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

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 timing cover gasket sets include every part needed for the repair unless otherwise noted

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$15.99

GM Genuine Parts Multi Purpose Seals are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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:

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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$20.99

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
SUPERIOR SEAL – Manufactured with rubber compounds to ensure a consistent and long-life seal across the entire oil pan
PREVENTS OVERTIGHTENING – Torque limiters help eliminate overtightening and gasket splitting and extruding (where applicable)
OE-STYLE REPLACEMENT GASKET – Engineered for OE-style molded rubber gasket replacement
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
ENGINEERING EXPERTISE – Parts are designed, tested, validated and approved by Fel-Pro engineers through rigorous research and development
ENGINEERING EXPERTISE – Parts are designed, tested, validated and approved by Fel-Pro engineers through rigorous research and development

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$5.99

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:

Meets or exceeds all original equipment specifications
Design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes

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$37.99

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

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$12.99

Melling Performance valvetrain checking springs feature a low-tension design that allows them to be installed by hand for measuring piston-to-valve clearance, rocker arm ratio, and degreeing in a camshaft.

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$34.99

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

Design type: spring loaded; multi-lip
Temperature range: -100 Deg. F to 450 Deg. F / -73 Deg. C to 232 Deg.
Excellent dry running capabilities
Low coefficient of friction
Delivers quality and reliable performance for every type of repair

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$268.99

The Bladerunner charge pipes produce 20 hp and 63 lbs./ft/ torque and outflow the factory tubes by 45 percent. With the increased flow of this Charge Pipe it will reduce you exhaust gas temperatures by 100 deg..

Product Features:

Stainless Steel
100% MIG-Welded
All Hardware Included
Hassle Free Installation

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$114.99

Sprockets Are Made From High Alloy Steel, and Heat-Treated For Durability. Chain Is Pre-Stressed and Heat-Treated For Longevity. SET INCLUDES: S834T Engine Timing Camshaft Sprocket (1 EA), S837 Engine Timing Crankshaft Sprocket (1 EA), 9-4185 Engine Timing Chain (1 EA).

Product Features:

Utilizes the latest in design and technology to offer complete chain sets
CAD designed and manufactured using premium materials
Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Utilizes the latest in design and technology to offer complete chain sets
Refer to our online catalog for detailed application-specific information

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$15.49

GM Genuine Parts Engine Oil Pan Seals are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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:

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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$34.99

The engine lubrication system is critical to engine operation and long life. On some vehicle applications, the engine control module monitors the engine oil level to ensure lubrication is not lost.

Product Features:

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.

from

$42.99

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:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

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$288.99

COMP Cams Hydraulic Roller Lifters are a performance upgrade for stock hydraulic roller lifters or retro-fit hydraulic roller lifters for non-roller blocks. The roller wheel decreases friction and increases longevity when compared to flat tappet lifters. Hydraulic roller lifters can handle much more aggressive cam profiles than flat tappets unlocking performance potential.

Product Features:

.842″ diameter; 122g weight; 2.66″ seat height
Performance replacement for stock hydraulic roller lifters or retro-fit hydraulic roller lifters for non-roller blocks
Decrease friction and increase longevity when directly compared to flat tappet lifters
Accept much more aggressive cam profiles than flat tappet lifters will allow

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$5.99

Fuel Pump Mounting Gasket

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$215.99

High Performance 3/8″ Pitch Single Roller Replacement TRUE Roller “Z Chain” Chain. 0.250″ Roller Diameter. Heat Treated and Processed Links to Maximize Ultimate Breaking Strength while Remaining Ductile for Toughness. Pre-stressed to Increase Fatigue Life.

Product Features:

A timing chain synchronizes the rotation of the crankshaft and camshaft(s), ensuring proper timing of the engines valve events for each cylinder
Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
From stock replacement to high performance, Cloyes has the most complete timing chain catalog
Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
Cloyes recommends the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced as these components play a vital role in system stability and accurate timing
Refer to our online catalog for detailed application-specific information
Keep your engines valvetrain in perfect time with Cloyes, the world leader in timing drive systems

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$39.99

Pressure sensors are used within several operating systems on the vehicle. Subjects in this category measure the pressure of both liquid and air to include air in a positive pressure and negative pressure range. Pressure sensors report out as the result of an electrical device called a strain gauge which produces an analog or digital signal output dependent on the needs of the circuit. Pressures may be very low such as barometric pressure, or extremely high such as in a high-pressure fuel injection system.

Product Features:

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
Robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure accurate signal output providing product reliability, every time.

from

$89.99

Carquest Premium crankshaft position sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium crankshaft and camshaft sensors are engineered with technology that provides increased output accuracy through a stronger, more consistent signal. Our sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium crankshaft and camshaft position sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Engineered with technology that provides increased accuracy with a stronger, more consistent signal
Sensors are based on proven hall effect and variable reluctance technology
Includes OE-style brackets, hold downs, hardware, or spacers as needed for each application.
O-rings and seals are included if required.
Weather-tight connectors prevent leaks and corrosion for better reliability.
Extensive design validation testing and 100% end-of-line tested.
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$55.99

A leader in vehicle electronic solutions, each premium product meets or exceeds OE specifications in appearance, fit, and function, ensuring easy installation and excellent performance. The product has been tested under extreme environments.

Product Features:

Reliable circuit board and product structure design, 3D proofing, and field test verification to ensure correct signal output at all speeds.
Manufactured in an anti-static environment to ensure reliability and stability.
Extreme temperature and salt spray tests simulate real-world vehicle conditions to ensure durability and reliability.
Providing this premium product line, we meet the service professionals needs with the highest quality product every time the part comes out of the box.

Upgrade your 2020 GMC Sierra 2500 HD with Top-Quality Engine Parts

When it comes to maintaining or upgrading your 2020 GMC Sierra 2500 HD, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your GMC or enhancing its overall performance, Engine Parts are key to keeping your Sierra 2500 HD functioning at its best. At Advance Auto Parts, we offer a wide selection of 42 Engine Parts for the 2020 GMC Sierra 2500 HD, designed to meet your needs without breaking the bank. From Engine Timing Part replacements to Camshafts upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Engine Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Engine Parts for your 2020 GMC Sierra 2500 HD at great prices. Our Engine Parts inventory for this model ranges from just $0.99 to $689.99, with an average price of $73.35. Our 42 Engine Parts in stock come from 11 trusted brands, so you’re sure to find the right part for your 2020 GMC Sierra 2500 HD without overspending.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Engine Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2020 GMC Sierra 2500 HD is always ready to roll. We’re committed to providing you with everything you need to keep your Sierra 2500 HD in top shape, all in one place. Start shopping confidently below for your 2020 GMC Sierra 2500 HD!

Best-Selling Engine Timing Parts for 2020 GMC Sierra 2500 HDs

Enhance the driving experience in your GMC with 4 quality Engine Timing Part components, starting at $44.49.

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$44.49

Since 1921, Cloyes has been the trusted leader in automotive timing systems. Our timing chains are built to synchronize crankshaft and camshaft rotation with absolute accuracy, ensuring precise valve timing and long-term engine performance. Available as stand-alone chains or in complete kits, Cloyes timing chains are manufactured from premium materials, heat-treated, pre-stressed and engineered for a perfect chain-to-sprocket tooth fit – delivering quiet operation, durability, and OE-level performance you can count on. To ensure total timing system integrity, Cloyes recommends replacing the chain along with the tensioners, guides, and sprockets during service. Trusted by professionals for over a century & backed by an industry-leading limited Warranty and technical support.

Product Features:

Pre-stressed and heat-treated steel construction for increased strength, and wear resistance, delivering long-term durability even in high-stress environments
Cloyes chains are engineered and manufactured with precision pitch control to ensure optimal chain-to-sprocket fit reducing noise, minimizing fatigue, and maintaining accurate timing
Designed in the USA and manufactured using premium materials for OE-level fit and function, allowing for smooth installation and reliable performance
Each part is extensively tested for function, fitment, and durability to ensure consistent quality and optimal performance, reducing the risk of comebacks
Available in application-specific kit or as a stand-alone chain, offering installation flexibility and convenience
Backed by Limited Lifetime Warranty and over 100 years in engineering leadership with unmatched technical support and repair confidence in every component

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$264.99

Cloyes Performance Tensioner Elimination GM LT Engine Timing ¿Z¿ chain det eliminates the factory tensioner while maintaining tunable accurate timing for VVT-equipped LT engines. By removing the factory tensioner, this kit eliminates chain slack and potential failure. The ¿Z¿ chain offers superior strength and durability for VVT LT engines, reducing the risk of chain stretch or fatigue. The combination of Cloyes TRUE¿ Roller ¿Z¿ Chain and precision-machined sprockets ensures a center distance corrected timing drive for extreme performance on VVT-equipped LT engines.

Product Features:

Billet 5-keyway crank sprocket for ±4° adjustability with 2 custom diamond-impregnated friction washers for front and thrust hubs. Precision oil pump spline drive for durable, reliable oil pressure delivery.
Billet 5-keyway crank sprocket for ▒4░ adjustability with 2 custom diamond-impregnated friction washers for front and thrust hubs. Precision oil pump spline drive for durable, reliable oil pressure delivery.
TRUE Roller ¿Z¿ Chain (0.250¿) is Cloyes best chain featuring heat treated and processed links to maximize ultimate breaking strength while remaining ductile for toughness and pre-stressed to increase fatigue life.
TRUE Roller ┐Z┐ Chain (0.250┐) is Cloyes best chain featuring heat treated and processed links to maximize ultimate breaking strength while remaining ductile for toughness and pre-stressed to increase fatigue life.
Tensioner elimination guide provided to simplify installation and ensure proper lubrication and chain stability.
Center distance corrected to eliminate chain slack for accurate tunable VVT phaser operation.
Made in Paris, Arkansas, USA: all machined billet parts proudly manufactured in the USA.

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$139.99

Cloyes Performance Tensioner Elimination GM LT Engine Timing Set eliminates the factory tensioner while maintaining tunable accurate timing for VVT-equipped LT engines. By removing the factory tensioner, this kit eliminates chain slack and potential failure. The combination of Cloyes TRUE¿ Roller chain, and precision-machined sprockets ensures a center distance corrected timing drive for reliable performance on VVT-equipped LT engines.

Product Features:

Billet 5-keyway crank sprocket for ±4° adjustability with 2 custom diamond-impregnated friction washers for front and thrust hubs. Precision oil pump spline drive for durable, reliable oil pressure delivery.
Billet 5-keyway crank sprocket for ▒4░ adjustability with 2 custom diamond-impregnated friction washers for front and thrust hubs. Precision oil pump spline drive for durable, reliable oil pressure delivery.
Premium Cloyes TRUE¿ roller chain (0.250¿) for reduced friction and smooth operation.
Premium Cloyes TRUE┐ roller chain (0.250┐) for reduced friction and smooth operation.
Tensioner elimination guide provided to simplify installation and ensure proper lubrication and chain stability.
Center distance corrected to eliminate chain slack for accurate tunable VVT phaser operation.
Made in Paris, Arkansas, USA: all machined billet parts proudly manufactured in the USA.

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$80.99

Since 1921, Cloyes has been the trusted leader in automotive timing systems. As a critical component of the engine’s timing system, the crankshaft sprockets work in unison with the timing chain, tensioners, guides and other sprockets, to ensure precise timing. Cloyes engine timing crankshaft sprockets are precision-tooled with exact tooth geometry and a perfectly matched bore, off-set and timing index for superior fit, reliability, and long-term performance. To ensure total timing system integrity, Cloyes recommends replacing the chain along with the tensioners, guides, and sprockets during service. Trusted by professionals for over a century & backed by an industry-leading limited Warranty and technical support.

Product Features:

Features precision-tooled tooth form, bore, off-set and timing index for superior fit, reliability, and long-term performance in engine timing repairs
CAD designed and manufactured using premium materials and heat-treated for OE-level fit and function, allowing for smooth installation and reliable performance
Each part is extensively tested for function, fitment, and durability to ensure consistent quality and optimal performance, reducing the risk of comebacks
Available in application-specific kit or as a stand-alone product, offering installation flexibility and convenience
Backed by Limited Lifetime Warranty and over 100 years in engineering leadership with unmatched technical support and repair confidence in every component

Most Popular 2020 GMC Sierra 2500 HD Camshafts

Customize your GMC with 6 Camshafts products like Camshaft Position Sensors, Camshaft Seals, and Camshaft Thrust Plate and Bearings, all priced under $45.99.

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$45.99

ACDelco GM Original Equipment Engine Camshaft Position Sensors monitor the rotational position of the camshaft(s), and are GM-recommended replacements for your vehicle’s original components. They provide a signal to the engine control module which compares the camshaft position with the crankshaft position to determine ignition and fuel injection timing. These original equipment engine camshaft position sensors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

Helps keep engine timing and fuel injection running in sync
Helps provide proper alignment, positioning, and spacing for easy installation
Synchronizes engine valves and pistons for excellent engine performance
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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$29.99

Helps keep engine timing and fuel injection running in sync
Helps provide proper alignment, positioning, and spacing for easy installation
Synchronizes engine valves and pistons for excellent engine performance
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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$42.99

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:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

from

$42.99

Engineered with technology that provides increased accuracy with a stronger, more consistent signal
Sensors are based on proven hall effect and variable reluctance technology
Includes OE-style brackets, hold downs, hardware, or spacers as needed for each application.
O-rings and seals are included if required.
Weather-tight connectors prevent leaks and corrosion for better reliability.
Extensive design validation testing and 100% end-of-line tested.
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

from

$24.99

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.

from

$22.49

This engine camshaft position sensor is designed to match the fit and function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage.

Product Features:

Direct replacement – this engine camshaft position sensor is designed to match the fit and function of an original sensor on specified vehicles
Ideal solution – engineered to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

Top Picks for 2020 GMC Sierra 2500 HD Engine Gaskets and Seals

Upgrade GMC Sierra 2500 HDs with top-quality Engine Gaskets and Seals parts, including 8 OEM and aftermarket selections for your 2020 model.

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$15.99

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

from

$26.99

DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
SUPERIOR SEAL – Manufactured with rubber compounds to help ensure a consistent and long-life seal
PRECISE DESIGN – Engineered to work with the embossed cover and pan flanges
PREVENTS OVERTIGHTENING – Features compression limiters incorporated into the design to help eliminate overtightening (application specific)
OE-STYLE REPLACEMENT GASKET – Engineered for OE-style molded rubber gasket replacement
EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted

from

$88.99

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust
Includes all the parts necessary to complete the repair unless otherwise noted

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$25.99

Oil drops on the driveway are a distant memory thanks to sophisticated engine valve cover and gasket designs. Victor Reinz is at the forefront of engineering the latest sealing technology. Although the primary task of valve cover gaskets is to seal oil and oil spray, they must withstand high temperatures brought on by nearby exhaust manifolds, exhaust crossovers in the cylinder heads, and EGR systems. Victor Reinz valve cover gaskets deliver the quality materials you demand. Where appropriate, Victor Reinz valve cover gaskets are designed with compression limiters to prevent over-torquing, splitting, or the need to retorque.

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.

from

$9.99

Product Features:

Resistant to temperatures from -58 Deg. F to 482 Deg. F, and briefly up to 572 Deg. F (-50 Deg. C to 250 Deg. C, briefly to 300 Deg. C)
Insignificant shrinkage and loss of mass even in high-heat environments
Fast-curing, low-odor, noncorrosive (pH neutral, non-acidic, non-oxidizing), and will not harm oxygen sensors
Sealing gap 0.006 in (0.15 mm)

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$6.99

GASKET

from

$6.29

GM Genuine Parts Engine Oil Pan Gaskets are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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:

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

from

$5.99

Fuel Pump Mounting Gasket

In-Demand Engine Mounts for 2020 GMC Sierra 2500 HDs

Select from 2 premium Engine Mounts parts for your 2020 GMC Sierra 2500 HD, with prices ranging from $68.99 to $79.99.

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from

$79.99

Product Features:

This mount supports the engine and dampens vibration.
Natural and SBR rubber provide maximum life and performance.
Steel fasteners are heat treated grade 5 bolts.
A special bonding agent is used to ensure a rubber to metal bond.
Rubber material is mixed to specific Durometer, hardness.
Limited Warranty.
All mounts are specifically engineered and designed to OE standards using the latest CAD/CAM engineering process ensuring the highest consistency and quality.
Only natural and Styrene Butadiene rubber is used to provide premium abrasion resistance and aging stability to ensure maximum life and performance.
Any included fasteners are hardened steel with heat treated Grade No. 5 bolts.
Chemlock bonding agent is used to ensure a superior rubber-to-metal bond.
All Rubber material is manufactured to specific Durometer (hardness) measurements based on vehicle application requirements.
Hydraulic Mounts, applicable where OE, are specifically engineered for high vibration and torque applications and are filled with special hydraulic fluid to dampen excess noise and vibration.

from

$68.99

Product Features:

This mount supports the engine and dampens vibration.
Natural and SBR rubber provide maximum life and performance.
Steel fasteners are heat treated grade 5 bolts.
A special bonding agent is used to ensure a rubber to metal bond.
Rubber material is mixed to specific Durometer, hardness.
Limited Warranty.
All mounts are specifically engineered and designed to OE standards using the latest CAD/CAM engineering process ensuring the highest consistency and quality.
Only natural and Styrene Butadiene rubber is used to provide premium abrasion resistance and aging stability to ensure maximum life and performance.
Any included fasteners are hardened steel with heat treated Grade No. 5 bolts.
Chemlock bonding agent is used to ensure a superior rubber-to-metal bond.
All Rubber material is manufactured to specific Durometer (hardness) measurements based on vehicle application requirements.
Hydraulic Mounts, applicable where OE, are specifically engineered for high vibration and torque applications and are filled with special hydraulic fluid to dampen excess noise and vibration.

Most Sold 2020 GMC Sierra 2500 HD Valve Cover and Cylinder Heads

Explore our best-selling GMC parts for the 2020 Sierra 2500 HD among 5 OEM and aftermarket options starting from $5.99.

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$24.99

Sealed Power® Vintage components provide coverage for applications over 35 years old, restoring classics with like new performance. Leading edge materials, ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.

Product Features:

Unsurpassed quality that you can trust
Uses leading edge materials
State-of-the-art manufacturing
Exacting tolerances
Meets or exceeds OEM specifications
New OEM riveted pin retaining design

from

$14.99

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

from

$5.99

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:

Meets or exceeds all original equipment specifications
Design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes

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$56.99

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
Validated for fit, form and function
Unsurpassed quality you can trust

from

$12.99

FAQs for 2020 GMC Sierra 2500 HD Engine Parts

Which Engine Parts are best-sellers for 2020 GMC Sierra 2500 HDs?

Out of 42 Engine Parts that fit 2020 GMC Sierra 2500 HDs, the following parts are the top sellers:

Engine Valve Lifter (12486346) – $24.99
Gen III/IV Lifter Guide (11949076) – $14.99
Engine Oil Filler Cap Seal (12005635) – $5.99

What’s the price range for 2020 GMC Sierra 2500 HD Engine Parts?

Engine Part prices for the 2020 GMC Sierra 2500 HD start at $0.99 and go up to $689.99 for the most premium parts.

What’s the average price of a Engine Part for a 2020 GMC Sierra 2500 HD?

The average price for Engine Parts for the 2020 GMC Sierra 2500 HD is $73.35. Keep in mind the variety of part types within our Engine Part category so you are likely to find a wide range of prices across a variety of parts and components.

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

Yes, we currently carry Engine Parts for 24 model years of GMC Sierra 2500 HDs between 2001 and 2026. Engine Parts are bought most frequently for the following model years: 2023, 2022, 2021, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Engine Parts for my 2020 GMC Sierra 2500 HD?

The cheapest 2020 GMC Sierra 2500 HD Engine Parts we carry in stock are:

Engine Oil Dipstick Tube O-Ring (50251306) – $0.99
Engine Oil Filler Cap Seal (12005635) – $5.99
Fuel Pump Mounting Gasket (50251311) – $5.99
Oil Pan Gasket (12515458) – $6.29
GASKET (50233893) – $6.99

What types of Engine Parts do you sell for my 2020 GMC Sierra 2500 HD?

As of 3/1/26, these are some of the most in-demand types of Engine Parts for a 2020 GMC Sierra 2500 HD:

Can I get help with 2020 GMC Sierra 2500 HD Engine Part orders?

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

What is your return policy for GMC Sierra 2500 HD Engine Parts?

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

2020 GMC Sierra 2500 HD Engine Parts

Felpro – Engine Oil Dipstick Tube O-Ring (Part No.73889)

GM Genuine Parts – Gen III/IV Lifter Guide (Part No.12595365)

Carquest Premium – Engine Camshaft Position Sensor (Part No.CSA1959)

Victor Reinz – Engine Camshaft Seal (Part No.71-18369-00)

Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S827)

Anchor – Engine Mount: Front Left, Front Right, 1 Piece (Part No.3290)

MAHLE Original – Engine Cylinder Head Bolt Set (Part No.GS33504)

Carquest Premium – Oil Filler Cap (Part No.10114)

Felpro – Engine Oil Cooler Gasket (Part No.72435)

Carquest Premium – Multi-Purpose Relay (Part No.RAA1737)

Felpro – Engine Timing Cover Gasket Set (Part No.TCS 45993-1)

GM Genuine Parts – Fuel Pump O-Ring (Part No.G41)

Felpro – Engine Oil Pan Gasket Set – High-temperature Rubber-coated fiber (Part No.OS 30748)

Felpro – Engine Oil Filler Cap Seal (Part No.73193)

Felpro – Engine Valve Cover Gasket Set (Part No.VS 50504 R-1)

Melling Select Performance – Valve Train Set Up Spring (Part No.VTSS100)

National – Engine Crankshaft Seal (Part No.100470)

aFe POWER – Cold Charge Pipe (Part No.46-20047)

Cloyes Gear – Engine Timing Set (Part No.C-3217)

GM Genuine Parts – Oil Pan Seal (Part No.12621086)

Carquest Premium – Engine Oil Level Sensor (Part No.SBA3659)

Felpro – Engine Camshaft Thrust Plate (Part No.ES 73115)

Competition Cams – LIFTERS, LS SERIES OE STYLE HYD RLR 1 ST (Part No.850-16)

Felpro – Fuel Pump Mounting Gasket (Part No.73158)

Cloyes Performance – High Performance Timing Chain (Part No.9-303)

Carquest Premium – Manifold Absolute Pressure Sensor (Part No.WTA1591)

Carquest Premium – Engine Crankshaft Position Sensor (Part No.CSA1502)

Carquest Premium – Crankshaft Sensor (Part No.CSC1065)

Cloyes Gear – Engine Timing Chain (Part No.9-4205)

Cloyes Performance – HIGH PERFORMANCE SET (Part No.9-3678X5Z)

Cloyes Performance – HIGH PERFORMANCE SET (Part No.9-3678X5)

Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S1111)

GM Genuine Parts – Engine Camshaft Position Sensor (Part No.12636947)

GM Genuine Parts – Engine Camshaft Position Sensor (Part No.12623093)

Felpro – Engine Camshaft Thrust Plate (Part No.ES 73115)

Carquest Premium – Engine Camshaft Position Sensor (Part No.CSA4435)

Victor Reinz – Engine Camshaft Seal (Part No.71-18369-00)

Dorman – Magnetic Camshaft Position Sensor (Part No.962-277)

GM Genuine Parts – Fuel Pump O-Ring (Part No.G41)

Felpro – Engine Valve Cover Gasket Set (Part No.VS 50907 R)

Felpro – Engine Timing Cover Gasket Set (Part No.TCS 45055)

Victor Reinz – Engine Valve Cover Gasket (Part No.15-11180-01)

Victor Reinz – RTV Silicone (Part No.70-31414-10)

GM Genuine Parts – GASKET (Part No.12619787)

GM Genuine Parts – Oil Pan Gasket (Part No.12666993)

Felpro – Fuel Pump Mounting Gasket (Part No.73158)

Anchor – Engine Mount (Part No.3587)

Anchor – Engine Mount (Part No.3588)

Sealed Power – Engine Valve Lifter (Part No.HT-2148A)

GM Genuine Parts – Gen III/IV Lifter Guide (Part No.12595365)

Felpro – Engine Oil Filler Cap Seal (Part No.73193)

Felpro – Engine Cylinder Head Bolt Set (Part No.ES 73121)

Melling Select Performance – Valve Train Set Up Spring (Part No.VTSS100)