Hummer H3 Engine Parts

Essential Hummer H3 Engine Parts

GM Genuine Parts – Timing Chain Tensioner (Part No.12598504)

Timing Chain Tensioner

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$62.99
ACDelco GM Original Equipment Engine Timing Chain Tensioners help maintain a consistent amount of tension within the timing chain to help reduce the effect that slack has on the valve timing of the engine, and are GM-recommended replacements for your vehicle’s original components. These original equipment tensioners have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Provides consistent tension to help keep engine running in proper time
  • 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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Melling Select Performance – High Performance Oil Pump (Part No.M29500)

High Performance Oil Pump

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$29.99
High Performance Oil Pump

GM Genuine Parts – Camshaft Position Sensor (Part No.213-3826)

Camshaft Position Sensor

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$74.99
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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Spartan – Engine Cylinder Head; Chev LS 01-15 Head (Part No.2CTU)

Engine Cylinder Head; Chev LS 01-15 Head

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$583.99
Remanufactured Cylinder Heads are complete rebuild & include new valve stem seals, soft plugs & verified camshafts. All threads are checked and repaired if necessary. Cylinder Heads are packaged in heavy plastic to protect the unit.

Product Features:
  • All cylinder heads are both vacuum and pressure tested to verify valve seating, & integrity of water passages.
  • All cylinder heads are packaged in environmentally safe and recyclable containers that are the perfect size for returning your original core
  • All threads and machined surfaces are and repaired with technology that exceeds the original metal
  • Non-sealing iron surfaces painted to prevent oxidization
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ARP Auto Racing – ARP Harmonic Damper Bolt Kit (Part No.234-2503)

ARP Harmonic Damper Bolt Kit

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$53.99
As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in place, ARP has developed these ultra-strong 200,000 psi bolts that let you exert maximum clamping force. Special features include 1/4′ thick, wide area washer and an extra tall 12-point head that accepts a deep socket and eliminates the worry of stripping the head.

Product Features:
  • 1-1/16″ 12-Point Socket Size(s)
  • 8740 Chromoly
  • Black Oxide
  • Chevy LS1/LS6
  • Sold Individually
  • M16 x 2.0 Thread Size
  • 4.325″ Underhead Length
  • 200,000 PSI
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Melling – Stock Replacement OE Type High Volume Oil Pump (Part No.M295HV)

Stock Replacement OE Type High Volume Oil Pump

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$232.99
Made in USA. Melling high volume oil pumps increase the amount of oil flow by an average of 20% through the engine improving oil pressure at idle providing dependable performance every time in every application. Every Melling high volume oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling high volume oil pumps use the latest in gear and gerotor technology to provide the highest level of quality and performance. High volume gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum wear resistance. Every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.

Product Features:
  • Manufactured from high quality materials for consistent durable wear
  • Precision engineered for optimum fit and function
  • Designed for long-life and worry-free performance
  • High volume oil pump supplies additional oil to engines when necessary for high performance applications or low oil pressure issues
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Dorman – Main Seal Cover Kit (Part No.635-518)

Main Seal Cover Kit

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$83.99
This direct replacement rear main seal cover kit matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.

Product Features:
  • Direct replacement – this rear main seal cover kit matches the factory design, and includes a new gasket, installation hardware, and an updated seal design for superior leak prevention
  • Durable construction – the timing cover in this kit is made of die-cast aluminum for a leak-free fit and durability
  • Convenient solution – this kit includes a new gasket and installation hardware for a complete repair
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
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Felpro – Engine Lifter Valley Cover Gasket Set (Part No.MS 96169)

Engine Lifter Valley Cover Gasket Set

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$47.99
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 repair applications
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
  • Includes all parts needed to complete the repair
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ACDelco – Air Pressure Sensor (Part No.12711681)

Air Pressure Sensor

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$71.99
ACDelco GM Original Equipment Multi Purpose Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

Product Features:
  • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
  • ACDelco GM Original Equipment 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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Spartan – Engine Long Block; Chev 3.5L 06 Engine (Part No.DCTZ)

Engine Long Block; Chev 3.5L 06 Engine

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$3798.99
Remanufactured Engines are fully disassembled; heads, blocks, cranks & cams are machined & wear parts are replaced. Each engine is individually tested after assembly to assure compression, oil pressure and water jacket integrity.

Product Features:
  • Each engine we remanufacture is essentially reverse engineered – in part to discover original factory deficiencies. If possible, our seasoned R&D personnel & QC experts make improvements. Why shouldn’t our engine last longer than your first?
  • Engines come with installation gasket set & oil pump unless noted otherwise. If we have important installation information it will be included on tags or in the paperwork packaged with your engine.
  • Engines are securely packaged in a recyclable container that will also protect your core on the return trip. Our nationwide warehouse network means speedy delivery.
  • Each engine is remanufactured with quality OE level components not “white” box generic parts that may or may not satisfy your needs and expectations. When you use the best you get the best results and satisfaction.
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Dorman – Variable Valve Timing Solenoid (OE Fix) (Part No.916-886XD)

Variable Valve Timing Solenoid (OE Fix)

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$63.99
The original variable valve timing (VVT) solenoid on certain GM and Isuzu vehicles can fail from debris, mishandling during maintenance or harsh operating conditions. This Dorman OE FIX VVT solenoid features multiple improvements, including a patented, upgraded copper core and additional oil passages to eliminate internal movement and extend service life.

Product Features:
  • Patented design – this VVT solenoid features an exclusive copper core and a stronger center tube to eliminate internal movement and help ensure long service life on specified GM and Isuzu vehicles.
  • Improves performance – modified design includes additional passages to help increase oil flow
  • Hardware included – comes with hard-to-find gasket and high-grade hardware for a complete installation
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
  • Improved performance – modified design includes additional passages to increase oil flow
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Cloyes Performance – Engine Camshaft Thrust Button (Part No.9-232)

Engine Camshaft Thrust Button

from

$20.99
Replacement Captured Needle Thrust Bearing for LS Applications; Meets or exceeds OEM performance requirements; Cloyes utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience.

Product Features:
  • Replacement Captured Needle Thrust Bearing for LS Applications
  • Meets or exceeds OEM performance requirements
  • Cloyes utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience.
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National – Engine Crankshaft Seal (Part No.710551)

Engine Crankshaft Seal

from

$24.99
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: springless; 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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Melling – Engine Oil Strainer Gasket Set (Part No.M29517)

Engine Oil Strainer Gasket Set

from

$3.99
Made In USA. Installing an oil pump screen can often cause damage to the protective gaskets and O Rings if the screen assembly is not properly installed. In the event that the original seals are damaged or accidently discarded Melling offers a replacement gasket set for oil pump screen installations covering the LS oil pumps. Each package conveniently contains both replacement O Rings needed to complete the oil pump screen installation. These gasket sets can be used for the M295, M295HV, M355, M365, 10295, 10296 and 10355 oil pumps.
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ACDelco – Variable Valve Timing (VVT) Solenoid (Part No.12615873)

Variable Valve Timing (VVT) Solenoid

from

$115.99
ACDelco GM Original Equipment Engine Variable Valve Timing Solenoids regulate oil flow to the cam phasers that change the timing of the camshafts. The desired positions of the camshaft varies with engine speed and load and is calibrated for optimal engine performance, drive quality, and efficiency. They are GM-recommended replacements for your vehicle’s original components. These original equipment solenoids have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Coated to help protect against premature corrosion
  • Designed to match OEM calibration to provide the performance you expect from GM
  • 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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Felpro – Engine Oil Filler Cap Seal (Part No.73193)

Engine Oil Filler Cap Seal

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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Sealed Power – Engine Intake Valve (Part No.V-4644)

Engine Intake Valve

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$6.49
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
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Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S827)

Engine Timing Crankshaft Sprocket

from

$28.99
Along with the timing chain, tensioners, and guides, sprockets are an integral component within the timing system. Timing gears and sprockets are available as part of complete timing kits as well as for individual purchase and installation

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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Cloyes Gear – Engine Timing Set (Part No.C-3227)

Engine Timing Set

from

$97.99
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. SET INCLUDES: S894T Engine Timing Camshaft Sprocket (1 EA), S827 Engine Timing Crankshaft Sprocket (1 EA), 9-4205 Engine Timing Chain (1 EA).

Product Features:
  • Timing Set includes all components for a quick and efficient replacement
  • 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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Victor Reinz – Engine Cylinder Head Gasket (Part No.61-10648-00)

Engine Cylinder Head Gasket

from

$134.99
For secure, lasting macro and micro sealing, and protection against fuel, oil, water, and anti-freeze, Victor Reinz cylinder head gaskets deliver optimal service. Victor Reinz gaskets deliver OE proven strength and resistance to extreme temperatures and high-combustion pressures, and Victor Reinz engineers choose the most effective materials and designs from the global resources of Dana Incorporated.

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.
  • Multi-Layer steel construction
  • Embossed full hard stainless steel construction
  • Application specific rubber coating for unsurpassed sealability
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Felpro – PermaTorque Engine Cylinder Head Gasket Set (Part No.HS 26190 PT-4)

PermaTorque Engine Cylinder Head Gasket Set

from

$237.99
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:
  • PROPRIETARY COATING – Nonstick anti-friction coating seals small surface scratches and imperfections
  • SEALING TECHNOLOGIES – Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
  • STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
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Felpro – CYLINDER HEAD BOLT SET (Part No.ES 72220)

CYLINDER HEAD BOLT SET

from

$47.99
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
  • 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
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Cloyes Gear – Engine Timing Chain Guide (Part No.9-5506)

Engine Timing Chain Guide

from

$29.99
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. Designed to meet or exceed OEM performance requirements. Refer to our online catalog for detailed application-specific information.

Product Features:
  • A timing chain guide serves as a track or guide, for the timing chain, connecting the crankshaft and camshaft. Designed to meet or exceed OEM performance requirements
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Designed to meet or exceed OEM performance requirements
  • Refer to our online catalog for detailed application-specific information
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Sealed Power – Engine Oil Pump Repair Kit (Part No.224-53582)

Engine Oil Pump Repair Kit

from

$139.99
Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Melling – Stock Replacement Oil Pump Screen (Part No.378S)

Stock Replacement Oil Pump Screen

from

$65.99
Made In USA. A new Melling pick-up tube/oil screen assembly provides the lubrication oil as well as protection for your oil pump from materials that find their way into the engine oil supply system. Contaminates enter your oil system via engine wear, extended time between oil changes and other internal engine sources. These contaminates can interfere with the proper oil flow and pressure spring functions resulting in engine damage and/or failure. Melling suggests that a new properly installed oil pump pick-up tube/screen be a part of every oil pump installation. Several Melling oil pump applications are offered with an oil screen included.

Product Features:
  • Manufactured from high quality durable materials for long wear
  • Precision engineering protects the engine from dirt and contaminants
  • Designed for long-life and worry-free performance
  • Meets or exceeds original equipment specifications
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Hummer H3 Engine Parts Categories

Helping You Find the Right Engine Parts for Your Hummer H3

You love your H3. So we’ve made it easier than ever to help you find Hummer H3 Engine Parts in our online catalog. Our inventory holds 271 aftermarket and OEM Engine Parts for your Hummer H3, ranging from $0.65 to $4,129.99.

We offer parts from 23 brands trusted to make quality Engine Parts for your Hummer H3. Before you buy, take some time to read through customer reviews. We currently have 2,536 reviews of Hummer H3 Engine Parts from previous customers. Some of the top rated parts include Multi-Purpose O-Ring with 4.9 stars and Stock Replacement OE Type Oil Pump with 4.3 stars.

Find your H3 Engine Parts here, order online, and have your order shipped directly to your home. Prefer to have an in-person look at your Hummer H3 part to confirm it’s just right? You can find your nearest Advance Auto Parts store and confirm they have the part in stock before heading over.

Top Engine Parts Brands for Your Hummer H3

Our inventory holds Engine Parts for your Hummer H3 from 23 trusted brands. You’ll find OEM and aftermarket parts from brands like FELPRO, Sealed Power, and Dorman, all of which can keep that Hummer happy.
We have Competition Cams parts available for your Hummer H3 in categories like Camshafts. Some of the top-rated Competition Cams parts in these categories are:
XFI RPM 206/212 Hydraulic Roller Cam
from $541.99
(1)
XFI RPM 206/212 Hydraulic Roller Cam
Camshafts

FAQs for Hummer H3 Engine Parts

What are the most purchased Engine Parts for the Hummer H3?

Out of 271 Engine Parts for the Hummer H3, the most popular in our inventory are:
Engine Valve Lifter
from $14.49
(30)
Engine Valve Lifter
Engine Valve Lifters
Engine Crankshaft Seal Kit
from $42.99
(31)
Engine Crankshaft Seal Kit
Crankshaft Seals
Main Seal Cover Kit
from $83.99
(19)
Main Seal Cover Kit
Rear Main Seal Sets

What are the top-rated Hummer H3 Engine Parts?

Top-rated Engine Parts for your Hummer H3 based on customer reviews/ratings are:
Multi-Purpose O-Ring
from $6.49
(41)
Multi-Purpose O-Ring
“Corrected the issue”
Stock Replacement OE Type Oil Pump
from $193.99
(28)
Stock Replacement OE Type Oil Pump
“I received this free product sample from 3M. This sanding paper is very easy to use. You have a better grip with it and can use your whole hand to san”
Stock Replacement OE Type Oil Pump
from $122.99
(26)
Stock Replacement OE Type Oil Pump
“Had to take the front and Bottom off truck and the 4 Wheel Drive, took two days to get to replace parts Install after removal very Easy”