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HUMMER H3 Engines & Components
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ACDelco GM Genuine Parts Engine Valve Lifter Guides
ACDelco GM Genuine Parts engine valve lifter guides keep the lifters from rotating. These GM-recommended replacements deliver peace of mind that the fit, form, and function are of the highest standards. Order the guides designed for your GM year/make and engine application.
( 5 )
$13.99
K&N Performance Gold Oil Filters
Get oil filtration that's as good as gold with K&N Performance Gold oil filters. Keep your engine free from contaminants as small as 10 microns. They use a resin-impregnated filter media to provide maximum filtering and an inner core to lend extra structural support to the filter, preventing filter collapse. Plus, many of these K&N oil filters have an anti-drainback valve (where applicable) that eliminates dry starts and prevents oil from draining back into the crankcase during engine shutdown. And they're protected by a heavy-duty outer shell that guards against rock and stone damage and provides over 550 psi hydrostatic burst strength. So, if you want golden-level oil protection, then you want K&N oil filters.
( 516 )
$15.99
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$17.99
Melling Valves
It's never a good idea to cut corners when you're installing new valves. Melling is noted for its world-class engineering, superior grade alloy materials, and advanced manufacturing processes. Melling intake and exhaust valves meet the exacting specifications required for efficient, durable, and powerful performance. They feature high-fatigue strength, excellent heat resistance, and offer years of dependable service. Available in a wide variety of designs and materials for most OEM and performance vehicle applications, each valve is built and validated to meet or exceed OE specifications. Melling valves—unsurpassed quality you can trust.
( 45 )
$10.99
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$15.99
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 )
$14.99
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$19.99
Clearance
WIX Filters XP Oil Filters
WIX Filters XP oil filters are engineered for today's toughest driving conditions. WIX XP filters feature wire backed synthetic media that is designed to maximize the protection of full synthetic oil. XP filters are ideal for vehicles subject to towing trailers, high idling conditions, stop-and-go city driving, and harsh driving environments. Outfit your ride with WIX filters XP oil filters.
( 56 )
$11.99
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$12.99
ACDelco GM Genuine Parts Rocker Arms
ACDelco GM Genuine Parts rocker arms 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. That means the purchase of ACDelco GM Genuine Parts rocker arms will provide the correct fit and performance, delivering an easier install along with the optimal operation in your vehicle. The rocker arms are offered in different styles, ratios, and mounting options. They're available for hundreds of applications.
( 2 )
$16.99
Melling Oil Galley Barbell Plugs
Melling oil galley barbell plugs are quality replacements for the galley barbell plugs on your LS engine. These oil diverter valves fit in the back of your LS engine block and are essential to the oil pressure circuit. You don't want to overlook the little things for an enduring repair or build, so don't forget to order a Melling oil galley barbell plug.
( 4 )
$11.99
Melling Replacement Timing Chains
Melling replacement timing chains are available in several styles—single or double roller, link belt, or non-roller—for fitment on countless year/make/model vehicles. A key link in your engine, timing chains synchronize and transfer energy from the crankshaft to the camshaft, controlling when the intake and exhaust valves open. These solid-bushing chains offer a true bearing surface that rolls with the sprockets, eliminating chain stretch. Order the replacement designed for your specific application.
( 3 )
$17.99
Melling Replacement Hydraulic Lifters
Melling replacement hydraulic lifters are perfect for when you're ready to freshen up your engine. Melling has designed these lifters to be within factory tolerances for the perfect fit. They are affordable and available as flat or roller lifters.
( 41 )
$12.99
Fel-Pro Valve Cover Grommets
Despite their importance, valve cover grommets are often overlooked--and if they're not replaced in time, leaks can easily occur. Fel-Pro offers a range of quality replacement sealing solutions, including these valve cover grommets. They provide reliable, leak-free sealing to help keep your vehicle operating at peak efficiency. The Fel-Pro grommets meet or exceed OE specifications and are validated to provide accurate fit, form, and function.
( 11 )
$13.99
Melling High-Pressure Oil Pump Springs
A higher pressure bypass spring in an oil pump forces more oil through the engine, while a lower pressure spring allows for more oil to be recycled within the pump. These Melling high-pressure oil pump springs allow you to replace your stock standard pressure spring with a higher pressure spring to keep your oil pump functioning at its optimum best.
( 25 )
$10.99
Melling Valve Springs
Melling valve springs are perfect for stock rebuild or mild performance applications. They are manufactured from high-quality materials and fit in the stock location without any machine work. When you're replacing your valvetrain components, try Melling valve springs to keep your engine running smoothly.
( 16 )
$11.99
Bosch Premium Oil Filters
Keep your oil clean longer with Bosch premium oil filters. They utilize Bosch FILTECH media technology, a blend of natural and synthetic materials for superior filtration and increased engine wear protection. Premium FILTECH oil filters have a larger filtering area and can screen out more harmful contaminants than a conventional filter. Strong steel base plates and housings ensure a sturdy fit with no warping or leaks, and a silicone anti-drainback valve ensures a supply of clean oil when starting your vehicle. You can count on Bosch for dependable oil filtration that surpasses the competition.
( 15 )
$11.99
Dayco No Slack Tensioner Pulleys
Take up the slack with Dayco No Slack Tensioner 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 Tensioner pulleys.
( 20 )
$12.99
ACDelco Engine Oil Pump Relief Valves
ACDelco offers engine oil pump relief valves for a variety of specific applications. These replacements help regulate oil pressure and protect your engine from being damaged by high oil pressure. The valves typically open automatically when they exceed a preset value. They're designed, engineered, and tested to rigorous standards—all backed by General Motors. GM Genuine Parts are true OE components installed during the production of (or validated for) GM vehicles. Order the relief valve recommended for your vehicle.
( 2 )
$11.99
ACDelco GM Genuine Parts Engine Oil Fill Caps
ACDelco GM Genuine Parts engine oil fill caps provide the perfect OE replacements without breaking your budget. They are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Choose the cap style designed for fitment on your particular engine block.
( 14 )
$10.99
Mahle Original Valve Cover Grommets
Mahle valve cover grommets are molded for leak-free performance. Often ignored, but much needed, these rubber seals assist in keeping oil inside of the cover, where it belongs. Sometimes, the smallest leaks could be a problem. Circle your valve cover bolts with Mahle valve cover grommets.
Not Yet Reviewed
$11.99
ACDelco O-Rings
ACDelco O-rings are available in a number of sizes. Order these durable black rubber fittings to replace your ineffective seals and prevent leaking.
Not Yet Reviewed
$12.99
K&N Select Oil Filters
K&N Select Oil Filters have been specially designed for professional installers and service providers. Their high-flow design can help to improve engine performance by reducing oil filter restriction. The filters have a fluted canister shape so they can be removed with a traditional oil filter wrench commonly available to commercial installers. These Select Oil Filters provide outstanding filtration and engine protection throughout their service life. They are engineered to handle all grades of synthetic, conventional, and blended motor oils. The pleated media provides high capacity, making them suitable for extended oil change intervals (when used in accordance with the vehicle and motor oil manufacturers' recommendation). K&N Select Oil Filters are available for canister and cartridge type oil filter applications. They're offered in a variety of heights, outside diameters, and thread sizes. Some models include a filter bypass relief valve and/or anti-drainback valve.
( 1 )
$10.99
Dorman Oil Line Block-Off Plate Kits
Dorman oil line block-off plate kits are used to seal off or cover a port in the engine's oil system, often when an oil cooler or another component is removed or not being used. Kits include a precision-machined plate, necessary gaskets, O-rings, and hardware to create a reliable, leak-free seal. These are direct replacements for original equipment parts that are missing or damaged, and they're made from durable, corrosion-resistant materials engineered to withstand high temperatures and engine fluids, ensuring a long service life.
( 1 )
$12.99
Cloyes Wear Plates
Cloyes wear plates prevent your cam from walking and provide a good anti-friction surface. Cloyes offers several styles of wear plates for various applications.
( 7 )
$18.99
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 )
$19.99
ICT Billet Valve Cover Grommets
ICT Billet valve cover grommets look good and function great. First, you need a good seal around the bolt holes of your valve covers. Of course, if they happen to look nice while doing their job, it's an added bonus. ICT Billet valve cover grommets are designed to perform as good as they look.
( 2 )
$18.99
Dorman Oil Filler Caps
Dorman oil filler caps are constructed with durable rubber to provide a tight, heat-resistant seal for the valve cover. They effectively prevent debris from entering into the engine oil, helping to protect the engine from damage and ensuring engine longevity. These Dorman direct-fit oil filler caps are easy to install, and most (depending on application) are clearly marked with raised letters for quick identification under your hood.
( 7 )
$10.99
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