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HUMMER H3 Engines & Components
Showing In Stock Items. Show All 94 Items.
Melling Factory Hydraulic Roller Lifters
Melling factory replacement hydraulic roller lifters are designed and built to get the job done while ensuring efficient performance and quiet valve train operation. They are perfect for when you're ready to freshen up your engine. Melling factory hydraulic roller lifters are manufactured from the finest materials and designed for the proper fit and long dependable lifter life.
( 20 )
$24.99
Dura-Bond High Performance Cam Bearings
Dura-Bond high performance cam bearings are ideal for racing. They offer double the fatigue strength of standard bearings.
( 108 )
$28.99
King SI-Series Main Bearings
King SI-Series main bearings are recommended for OE applications. These replacement bearings are designed for aftermarket gasoline or diesel engine rebuilding—and performance engines with factory crankshafts. The bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. King SI-Series main bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow. Order the bearing set designed for fitment on your make and model.
( 88 )
$40.99
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$44.99
ACDelco Timing Covers
ACDelco offers engine timing covers for a variety of cars, trucks, vans, and SUVs. The aluminum replacements are available in different configurations for factory-style fitment. Some models also include gaskets and hardware. These parts are designed, engineered, and tested to rigorous standards—backed by General Motors. Order the OE direct-fit timing cover recommended for your vehicle.
( 4 )
$45.99
Sealed Power A-Series Rod Bearings
Sealed Power A-Series rod bearings can actually polish the journals on your crankshaft. That's because there's a small percentage of silicon mixed in with the aluminum and tin that make up the bearing-surface alloy. The silicon is there for wear resistance, but its toughness actually smoothes the journals of a crank with a surface that hasn't been optimized! This special surface alloy is laid over a high-strength 1010 steel backing and delivers improved seizure and corrosion resistance, as well as better wall variance control. It also helps to minimize debris embedding, which can score the crank's surface. Order the replacement bearings designed for your vehicle make and engine application.
( 33 )
$29.99
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$32.99
ACDelco GM Genuine Parts Hydraulic Roller Lifters
ACDelco GM Genuine Parts hydraulic roller lifters are designed as direct replacements for your engine, offering the quality, reliability, and durability of GM OE. They automatically help maintain a "zero" valve lash condition to help prevent valvetrain noise and unnecessary component wear. Stay with the parts brand your vehicle came with; order the lifters tailored for your specific GM make/model.
( 4 )
$32.99
Melling Oil Pump Pickup Retainers
Melling suggests that a new properly installed oil pump pick-up tube/screen be a part of every oil pump installation. For high performance bolt-on oil pump screen applications, Melling offers additional oil pump screen support with these engine oil pump pickup tube support brackets. The lightweight billet aluminum brackets provide added support for holding the oil pump screen in place during extreme high performance engine operation. Order the replacement model recommended for your vehicle.
( 15 )
$22.99
Mahle Original Head Bolt Kits
Mahle Original fasteners deliver the clamping force necessary to seal the combustion chambers, as well as the oil and coolant passages--even at extreme temperatures and pressures. On your next cylinder head reassembly, use bolts designed to exact specifications for the best sealing solution--Mahle Original head bolt kits.
( 36 )
$36.99
ACDelco GM Genuine Parts Camshaft Thrust Plates
ACDelco GM Genuine Parts engine camshaft retainer plates are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These are the true OE parts installed during the production of or validated by General Motors for GM vehicles, so you can be confident they will fit and perform just like the originals they are replacing. Select the thrust plates designed for your vehicle.
( 6 )
$28.99
Clevite AL-Series Rod Bearings
More and more manufacturers have shifted to aluminum bearings in their OE engines and Clevite AL-Series rod bearings are designed to be the highest-quality replacement bearings in the industry. They carry on the tradition and reputation that Clevite has built throughout the course of time. AL Series engine bearings feature a 100 percent lead-free aluminum silicon bi-metal material, which includes 60 percent more silicon than the leading competitor's bi-metal material for better conditioning of journal surfaces. These bi-metal bearings also offer greater wear resistance than the leading competitor's bi-metal material, as well as greater seizure resistance. Clevite AL-Series bearings feature 100 percent bored inside diameters for precision and surface characteristics and, where appropriate, straight-shell main bearings utilizing an "umbrella" groove that allows for superior oil control and improved pressure.
( 29 )
$34.99
ACDelco GM Genuine Parts Engine Oil Sump Windage Trays
ACDelco GM Genuine Parts engine oil sump windage trays 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. These crankshaft oil deflectors are available for a variety of vehicles, including many Chevrolet and Pontiac applications. Order the replacement model recommended for your ride.
( 1 )
$43.99
Melling Freeze Plugs
Seal up the casting core holes in your engine block and heads with Melling freeze plugs. They're manufactured from a variety of quality materials—such as brass, steel, and stainless steel—and offered in different diameters and depths to fit your specific application. These expansion plugs help protect against cracks caused by the pressure of frozen coolant and in regular operation will ensure that all vital fluids stay in the engine, where they belong. They are available for a wide range of makes and models, and can be ordered individually or in a multi-piece kit.
( 169 )
$23.99
Fel-Pro Headbolt Kits
Fel-Pro headbolt kits contain a complete set of the highest quality headbolts and hardened washers available. They're cold-formed to ensure molecular integrity, then heat-treated prior to thread rolling and machining. Reduced-diameter bolt heads eliminate the need for valvetrain removal and facilitate cylinder head re-torquing. The bolts are available in a variety of head styles for fitment on specific vehicle and cylinder head applications.
( 223 )
$37.99
Moroso Race Oil Filters
To maximize filter performance, Moroso race oil filters have a filtration rating of 27 microns. This results in a maximum pressure drop of only 2.5 psi, which results in more flow, less oil bypass, and maximum filtration performance, which is so important in severe racing conditions. Made with roll-formed threads for a precise, tight fit, and with an anti-drainback valve to keep oil in the filter after engine shutdown, they are perfect for any race application.
( 75 )
$26.99
Chevrolet Performance Timing Sprockets
Chevrolet Performance timing sprockets are designed to deliver strength and accuracy for many miles of dependable service. They're made from high-quality materials such as steel or iron—and are a vital link for engine timing. The sprockets are available in a variety of configurations for applications from 1992 and up.
( 37 )
$30.99
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$35.99
Fel-Pro Camshaft Thrust Plates
Fel-Pro camshaft thrust plates offer 100 percent vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust. These steel plates feature an O-ring seal and includes screws for installation.
Not Yet Reviewed
$37.99
Sealed Power CP-Series Rod Bearings
Federal Mogul CP-Series rod bearings feature classic tri-metal construction and are a good choice for either street or moderate competition use. They have rugged 1010 steel backings, covered by Federal Mogul's H-24 copper-lead alloy. On top of this is a nickel barrier, followed by the tri-metal (lead-tin-copper) overplate that gives these bearings their strength and fatigue resistance. The bearings are then entirely covered with a flash coating of tin. Order the set designed for use with your make/model and engine application.
( 119 )
$30.99
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$43.99
Chevrolet Performance Connecting Rod Bearings
For stock replacement rod bearings with perfect fit and function, choose Chevrolet Performance. Available for your LS-Series and big block engines, these rod bearings offer worry-free performance for your big horsepower. When you need originals, go to the original--Chevrolet Performance connecting rod bearings.
Not Yet Reviewed
$22.99
ACDelco Timing Chain Tensioners
ACDelco timing chain tensioners keep the pressure on! For your vehicle to run at optimum performance, your timing chain must be operating efficiently. These replacement tensioners will ensure your chain is in consistent working order to keep your engine marching "in time." The precision-machined and assembled parts offer an exact fit with a design for increased durability. Find the model designed for your application, then keep your timing chain in line with an ACDelco tensioner.
( 10 )
$42.99
ACDelco Gold Idler Pulleys
ACDelco Gold idler pulleys are built to offer reliable operation under severe conditions. They're dependable in any weather or climate offering, you year-round performance. Mounting hardware is included on some popular applications. These pulleys are manufactured to meet or exceed your expectations for fit, form and function. Order the model recommended for your vehicle.
( 13 )
$22.99
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$29.99
Dayco No Slack Idler Pulleys
Take up the slack with Dayco No Slack Idler pulleys. These specially formulated glass-filled polymer or steel-bodied pulleys have smoother surfaces and tighter dimensional tolerances for less vibration and longer belt life. They meet or exceed OEM specifications and feature lifetime-lubricated bearings and high-temperature seals to ensure peak bearing performance. Maximum structural integrity and optimal performance mean Dayco value for you. Keep your belts from slacking off with Dayco No Slack Idler pulleys.
( 80 )
$24.99
ACDelco V-Ribbed Serpentine Belts
ACDelco V-ribbed serpentine belts resist the penetration of water, acids, and ozone--plus, they provide broad temperature tolerances. Their patented advanced technology design incorporates EPDM rubber, which stays soft and pliable longer than traditional belt materials. Neoprene and certain grades of rubber can harden, causing unwanted squealing and a shorter belt life. The flexible construction of these serpentines allows each belt to withstand many topside and backside bends. ACDelco offers their V-ribbed replacement belts in various lengths, widths, and rib quantities for a wide range of fitments.
( 35 )
$31.99
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$35.99
King SI-Series Rod Bearings
King SI-Series rod bearings are recommended for OE applications. They're designed for aftermarket gasoline or diesel engine rebuilding and performance engines with OE crankshafts. These direct replacements have an improved finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. King SI-Series rod bearings also feature improved oil clearance to reduce wear and increase engine life—which, in turn, lessens operating noise, vibration, and excess oil flow. Hundreds of sets are available; order the bearings recommended for your vehicle.
( 99 )
$25.99
Cloyes Timing Camshaft Sprockets
Cloyes is a worldwide leader in the manufacture and supply of automotive timing drive systems and components for aftermarket. Their timing camshaft sprockets are precision-machined from various quality materials, depending on the application. You can rest assured that your Cloyes timing camshaft sprockets will fit properly.
( 2 )
$30.99
