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GMC SIERRA 2500 HD Ignitions & Electrical

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Results 1 - 24 of 104

Powermaster XS Torque Starters

Powermaster's highly efficient XS Torque starters feature extra-powerful motors that churn out up to 200 lbs.-ft. of torque. Coupled with their 4.4:1 gear-reduction ratio, that equals reliable cranking power for engines, up to a whopping 18.0:1 compression ratio. These starters come with a billet adapter/mounting block for durability. They'll also clear your oil pan if the OE starter did. Some models are available in a chrome plated finish. Starter dyno test results are included. Order the replacement designed for your vehicle application.

4.56 out of 5 stars ( 904 )

$251.99

On Sale

MSD 8.5mm Super Conductor Spark Plug Wire Sets

MSD 8.5mm Super Conductor spark plug wire sets feature a special helically wound core that has just 40-50 ohms of resistance per foot—but with an RFI suppression equal to a 1,500 ohm wire. In fact, each foot of finished wire includes 40 ft. of tightly wound copper for superior conductivity. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective Electro Magnetic Interference "choke." This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. A tough, 8.5mm synthetic/silicone jacket over an extra-heavy glass braid and dielectric insulator keeps the current guided to the plugs. Underneath the high-temperature boots, dual crimp stainless steel terminals feature snap-locks to ensure a secure fit. Each set comes with clip-on cylinder markers for easy identification. MSD's 8.5mm Super Conductor wire sets are available in custom or universal-fit applications, assembled or not, with a variety of terminal and boot end options.

4.65 out of 5 stars ( 1972 )

$118.95

$209.95


$107.05

$188.95

Optima RedTop Starting 12-Volt Batteries

Optima RedTop Starting 12-volt batteries are the ultimate power source for cars, trucks, SUVs, hot rods, and other high-performance vehicles. They're engineered with unique Spiralcell technology, delivering a stronger burst of ignition power, while extending the battery life up to three times longer than conventional models. Maintenance-free RedTop AGM batteries are sealed, leak-proof, and resistant to vibrations—so you can mount them anywhere and in virtually any position on your vehicle. Order the Optima battery designed for your application, and expect a perfect start every time.

4.81 out of 5 stars ( 1524 )

$279.99

On Sale

DiabloSport PredatorX Tuners

DiabloSport PredatorX tuners deliver the latest in tuning technology, allowing you to take control of your tuning needs from your smartphone. The iOS/Android compatible apps pair with the PredatorX dongle to give you complete tuning access from your pocket. The OBDII dongle can stay connected to the vehicle full time, so you're always just seconds away from being able to make tuning changes. The tuners are preloaded with power adding tunes for multiple octane levels, as well as transmission tunes for applications where they are needed. For those seeking more than the provided tunes offer, there is a plethora of end user based parameters that can be adjusted. Speed limiter, tire size, timing and fueling at wide-open-throttle, rev limiters, idle speed and so much more can be adjusted through the PredatorX. Features: iOS and Android support Tune from your smartphone! Preloaded with Performance tunes Trucks get tunes for 87 octane and Premium fuel Performance cars get tunes for 91 and 93 octane fuel TCM tunes are included End user adjustable parameters Disable AFM! Calibrate Speedometer for Taller Tires Set axle ratio if you've swapped gears Remove Speed Limiter Adjust Idle Speed Raise Rev Limiters Live data monitoring Read/Clear Diagnostic Trouble Codes (DTCs) Adjust options like idle, speed limiters, rev limiters, tire size, gear ratios and more. Support for 07-18 GM gas trucks and SUVs, 05-19 Corvette, and 10-24 Camaro V8, and more!

3.86 out of 5 stars ( 14 )

$295.95


$266.35

Summit Bucks

ACDelco Gold Automotive AGM Batteries

ACDelco Gold Automotive AGM batteries have high-cycling capabilities, are remarkably charge-receptive, and are necessary for start/stop applications. These batteries are also maintenance-free, 100 percent pressure-tested against leaks, and are manufactured to resist corrosion. Best of all, they are backed by ACDelco's outstanding warranty coverage. When reliable starting power is a priority— ACDelco Gold Automotive AGM batteries are the answer! Additional features include: * Absorbed Glass Mat design is 100 percent leak and spill-proof, because the electrolyte is permanently held in the glass mat separator, instead of free flowing within each cell * Oxygen recombination reduces water loss and reassures maintenance-free performance * ACDelco Gold Automotive AGM batteries have longer life expectancy in traditional vehicle applications, due to a maintained pressure on the plates, which significantly reduces the amount of active mass lost from the grid

4.79 out of 5 stars ( 329 )

$171.99

$248.99

Summit Racing™ Ceramic Ignition Wire Sets

If you're running headers with close tolerances or have an engine bay with little room, Summit Racing™ ceramic ignition wire sets are the cure for burnt and melting boots. Their ceramic coating acts as a heat mirror, reflecting infrared energy and heat away from the plug boot—and it's engineered to resist flaking and peeling. The 8mm spiral core silicone wires deliver maximum energy to the spark plugs with built-in RFI suppression for your street-driven vehicle. These affordably priced wire sets are true performance upgrade replacements for OE types. They're available (assembled or non-assembled) with different terminal and boot ends for fitment on a range of vehicle applications.

4.39 out of 5 stars ( 90 )

$127.99

$134.99

Powermaster PowerMax Plus Starters

Powermaster PowerMax Plus starters are rated with high cranking torque and feature an offset gear reduction for increased performance. Their mounting blocks are made from durable billet aluminum and can be rotated in four positions to fit multiple locations. PowerMax Plus starters are available in either a natural or chrome finish and contain a tested dyno report in every box!

4.39 out of 5 stars ( 196 )

$182.99

$195.99

On Sale

ACCEL Extreme 9000 Ceramic Spark Plug Wire Sets

ACCEL Extreme 9000 ceramic wires are the cure for burnt spark plug boots. These wires provide excellent energy delivery while providing the highest level of RFI/EMI suppression. They're ideal for custom engines, boats, and RVs—plus great trackside accessories when you need to make up a replacement wire. ACCEL Extreme 9000 ceramic spark plug wire sets are available straight or in right-angle configurations. Order the set recommended for your vehicle and engine application. More product features include: * Finished with stainless steel spark plug terminals and ceramic spark plug boots * Each wire features ultra-high temperature double silicone wire rated at 600 degrees F * Ferro-Spiral core wire developed for performance use * Capable of withstanding up to 2,000 degrees F

4.43 out of 5 stars ( 463 )

$160.95

$214.95


$134.95

$193.45

HP Tuners ECM Upgrade Kits

HP Tuners ECM Upgrade Kits will give do-it-yourself enthusiasts and professional tuners a convenient option to perform the ECM upgrade on their 2017+ Chevy Silverado/GMC Sierra 6.6L Duramax in their own garage/shop. The best part? There's no need to remove the ECM from the truck. This means there's no risk of breaking tabs during the removal or reinstallation process, and the kit doesn't require any reprogramming or relearns. From start to finish, you can upgrade your E41 ECM in roughly 20 minutes—all you need is this upgrade kit, your MPVI2+ with Pro Feature Set or MPVI3 device with its supplied USB A to C cable, and a VCM Suite-compliant computer with the latest version of VCM Suite BETA. Once the ECM is upgraded, you'll experience the industry's most comprehensive diagnostics and tuning package using VCM Suite with full scan, data log, read, edit, and write capabilities. Plus, you'll experience the quickest write times in the industry in approximately 6 minutes! Product features and benefits: * No IMMO relearn * No crank relearn * No need to perform "Replace ECM" function

1.0 out of 5 stars ( 1 )

$199.99

Dragon Fire Performance Ignition Coils

Dragon Fire offers Performance ignition coils for a wide range of cars and trucks—including Chevrolet, GMC, Buick, Cadillac, Hummer, Isuzu, Pontiac, and Saab models from the early 2000s and up. These replacements are engineered to provide reliable spark energy and complete combustion. Their watertight, weatherproof connectors are designed using advance thermoresistant plastic to resist fracture and cracking from radiant heat and thermal cycling. The coils are tested to meet or exceed OE output voltage. High-temp epoxy filled construction prevents voltage leaks and RFI interference. Each unit also includes performance-grade primary and secondary bobbins with premium copper windings to ensure peak performance under load and extended service life. Order the coil packs recommended for your vehicle. FEATURES AND SPECS: * Direct OEM replacement * High-energy output * High-RPM Rated for NA or boosted applications * Brass high-tension terminals * Manufactured in ISO9001:2015 and ISO/TS 16949:2009 certified facilities under strict quality control to ensure long service life and perfect fitment

4.5 out of 5 stars ( 16 )

$229.95

$249.95

Powermaster Mastertorque Starters

With their gear-reduction drives, heavy-duty PowerMaster Mastertorque starters really crank out the power--180 lb.-ft. of torque. So they can handle engines with compression ratios as high as 14.0:1. If your stock starter clears your oil pan, they will, too. Some will also clear kicked-out pans. A selection of Mastertorque starters can be mounted in multiple orientations, and some will work inverted with the solenoid down. They feature a black wrinkle finish and select models are available in a chrome plated finish.

4.58 out of 5 stars ( 620 )

$233.99

Summit Bucks

ACDelco Alternators

Losing power? ACDelco alternators can power up your vehicle's electrical systems and charge the battery while the engine's running. They're direct replacements for your factory originals and are manufactured using ISO quality standards. With 100 percent new components and engineering enhancements, they provide improved performance, efficiency, and service life for your vehicle. Almost like your originals, but just a little bit better--ACDelco alternators. Order the model designed for your vehicle application.

4.39 out of 5 stars ( 162 )

$125.99

$225.99

Delphi Mass Airflow Sensors

Delphi mass airflow sensors are the OE parts that your vehicle should have come with! Their MAF sensors are new, not remanufactured, and feature fast response for outstanding performance over a wide range of ambient temperatures. Delphi mass airflow sensors are engineered to provide your ECM with continuous, precise information to ensure optimal performance, fuel economy, and reduced emissions. Give your vehicle new life--replace worn OE parts with Delphi mass airflow sensors.

4.68 out of 5 stars ( 99 )

$129.99

$155.99

Summit Racing™ OE Replacement Alternators

Summit Racing™ offers OE replacement alternators for a wide range of vehicles from 1995 and up. They're designed to fit in the factory location and install easily without any modifications. The alternators are manufactured from high-quality materials that meet or exceed the factory specifications. Available for passenger cars, trucks, SUVs, and vans, these stock-style alternators will eliminate your battery charging problems for good. Order the model recommended for your application.

4.38 out of 5 stars ( 32 )

$186.99

$199.99

Summit Bucks

ACDelco GM Genuine Parts Flex Fuel Sensors

ACDelco GM Genuine Parts flex fuel sensors will tell you the composition of your fuel. How much ethanol is in your system? Well, you're about to find out. These sensors measure the ethanol/gasoline ratio of the fuel being used—and then send a signal to your ECM so adjustments can be made for optimum operation of your flexible fuel vehicle. Allow GM Genuine Parts flex fuel sensors to provide the right answers for you to regain reliable, efficient performance.

5.0 out of 5 stars ( 7 )

$141.99

Summit Bucks

ACDelco Coil and Ignition Wiring Harnesses

ACDelco coil and ignition wiring harnesses will spark renewed energy for your engine. Wiring harnesses can deteriorate over time, leaving them unable to deliver the necessary voltage for power. Replace worn wiring with ACDelco coil and ignition wiring harnesses and keep the spark alive!

4.95 out of 5 stars ( 20 )

$106.99

Summit Bucks

ACDelco Starters

When you turn the key and your vehicle is slow to turn over—or worse, there's no ignition at all—one of the prime suspects is a faulty starter. Getting the engine up and running for each drive begins with this unit, so it's wise to trust your replacement parts to ACDelco. The aftermarket parts giant manufactures starters to precise OE specifications for perfect fit and performance on virtually any vehicle on the road today. Don't wait until a weak, aging starter fails completely; install an ACDelco product …and turn the key with confidence!

4.43 out of 5 stars ( 207 )

$119.99

$246.99

Edelbrock Max-Fire Ultra-Spark 50 Spark Plug Wire Sets

Edelbrock Max-Fire Ultra-Spark 50 spark plug wire sets deliver maximum power output. Engineered for high performance engines that need all the voltage they can get, Max-Fire wires are constructed of leads that transport a low 50 ohms of resistance per ft. for maximum EMI/RFI noise suppression. Each Ultra-Spark starts with a spiral wound Ferro-magnetic KEVLAR® core wrapped with a suppression layer, stainless steel conductive winding, and a latex silicone layer. This is followed by an EPDM inner insulation topped with braid tape and a tempered 8.5mm silicone outer jacket that won't crack or shrink, and is resistant to chemicals. The wires are finished with silicone plug boots featuring high-quality snap and lock-style terminals for easy installation. Give your engine the most power possible with Edelbrock Max-Fire Ultra-Spark 50 spark plug wire sets.

4.58 out of 5 stars ( 52 )

$106.95

Granatelli Motor Sports Spark Plug Wires

Granatelli spark plug wires utilize an exclusive solid stainless connector cable with stainless snap-lock spark plug connectors and a patented EMI/RFI protection ring. This helps them exhibit near 0 ohm resistance, with RFI/EMI outputs less than OE. These kits increase power to the spark plug by up to 25 percent over stock, and their high-temperature silicone boots resist temperatures of up to 500 degrees F. They're ideal for use with aftermarket headers and turbocharger systems, and installation is as easy as changing the factory units. The assembled wires are engineered to exceed OEM specifications and to be OBD-II computer safe. Order the set designed for your vehicle application.

4.82 out of 5 stars ( 56 )

$202.14

$254.51

Wiring Specialties Pro Series Coil Pack Harnesses

Wiring Specialties Pro Series coil pack harnesses are designed for a direct drop-in installation. These new nylon loomed harnesses will look and perform flawlessly. Select the ignition coil wiring unit tailored for your year/make and engine application. Pro Series coil pack sub-harnesses feature: * Brand new construction * High-temperature nylon looming with adhesive shrink tubing * High-temperature wire (280 degrees F) * OEM connector specs (no cheap aftermarket connectors that fall apart) * Designed for a factory-like installation * OEM wiring connections and 'T' junctions—no soldered * Fully tested after production for an easy plug-and-play replacement * Turnkey engine start guarantee

4.96 out of 5 stars ( 25 )

$169.99

Powermaster Street Alternators

Powermaster street alternators feature all of the quality construction and dependability the company is famous for. The "electrical generators" are available in a variety of amperages and styles, allowing you to choose the best model for your specific ride and the accessories you run. So whether you need an alternator for your truck, hot rod, musclecar, sport compact, or audio competition vehicle, Powermaster gives you the power you need to get it started and keep it going.

4.63 out of 5 stars ( 1797 )

$224.99

$250.99

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets

The new standard in ignition wires for racers on a budget! Moroso Ultra 40 unsleeved custom-fit ignition wire sets are the most powerful and RFI/EMI-resistant wires available for racing today. Plus, their closely woven fiberglass, silicone-impregnated insulation provides up to 8,000 extra volts of protection. Features: * Kevlar® core that's four times stronger than Aramid cores * Class-leading 40 ohms of resistance per foot * Nickel copper alloy conductors for superior spark energy transfer * Extra-thick EPDM layer for greater dielectric strength * High-temperature silicone boots that can withstand heat up to 600 degrees * Locking stainless steel plug terminals

4.54 out of 5 stars ( 139 )

$103.99

$127.99

On Sale

Taylor 409 Race-Fit Pro Race Spark Plug Wires

Bigger, better wire! Taylor 409 Race-Fit Pro Race spark plug wires start with Taylor's 8mm wires (available in spiral-wound or solid core) with a silicone inner insulator, fiberglass braid, and a 100 percent pure silicone jacket. Then they add a heat-treated fiberglass mesh skin and a third layer of pure silicone to get a full 10.4mm diameter. Taylor bonds pure silicone boots directly to the wires. The results are wires that have a 100,000+ V dielectric strength rating that gets more spark to your plugs.

4.61 out of 5 stars ( 157 )

$114.05


$102.64

Summit Racing™ Protorque Starters

Summit Racing™ Protorque Starters are 100 percent new! Our lightweight Nippondenso-type starters offer a 4.0:1 gear-reduction ratio and a whopping 1.9 HP. That's 222 ft.-lbs of racecar cranking power. If that's not enough cranking power to suit you, there are even more powerful 3.1 hp monsters, which are a pound lighter! They have a 4.44:1 reduction ratio and churn out an awesome 342 ft.-lbs. of torque. Both of our Summit Racing™ powerhouses are suitable for engines up to 502 c.i.d., and compression ratios of up to 18.0:1. GM versions are adjustable for five mounting positions; Ford types, for 18. And, to prevent corrosion and electrical shorts, both starters wear a gold dichromate finish.

4.34 out of 5 stars ( 602 )

$261.99

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