2003 Chevy Silverado Performance Ignition Systems

Change Vehicle
1 - 60 of 167 results
show:
sort by:
    • Bosch® OE Fine Wire Spark Plug
      (0 reviews)
      # 50075495
      Chevy Silverado 2003, OE Fine Wire Spark Plug by Bosch®. Pack of 1. Thread Diameter: 14 mm. Thread Length: 17.5 mm. Insulator Material: Ceramic. Ground Configuration: Standard. Ground Electrode Quantity: 1. Seat Type: Tapered....
      OE specific design360-degree continuous laser welded platinum tip for durability and long life
      $4.55 - $8.90
    • Bosch® Platinum Series Spark Plug
      (0 reviews)
      # 103436542
      Chevy Silverado 2003, Platinum Series Spark Plug by Bosch®. Pack of 1. Gap: 1.6 mm. Thread Diameter: 14 mm. Insulator Material: Ceramic. Center Electrode Tip Material: Platinum. Ground Electrode Tip Material: Nickel-Yttrium. Seat...
      Delivers quick starts and smooth accelerationLower ignition voltage requirement provides reliable cold weather starting and superior operation under all driving conditions
      $6.82 - $7.13
    • Bosch® Platinum Ir Fusion™ Spark Plug
      (0 reviews)
      # 103436548
      Chevy Silverado 2003, Platinum Ir Fusion™ Spark Plug by Bosch®. Set of 4. Gap: 1.6 mm. Thread Diameter: 14 mm. Thread Length: 17.5 mm. Insulator Material: Ceramic. Center Electrode Tip Material: Platinum. Ground Electrode...
      Fused iridium and platinum center electrode, sintered into an extended insulator nose reaches self-cleaning temperature only seconds after starting and provides exceptional wear resistanceTapered shape of the ground electrode reduces flame shrouding for improved combustion and more power
      $8.97 - $9.01
    • Bosch® Super Plus Spark Plug
      (0 reviews)
      # 103436547
      Chevy Silverado 2003, Super Plus Spark Plug by Bosch®. Pack of 1. Thread Diameter: 14 mm. Thread Length: 17.5 mm. Insulator Material: Ceramic. Ground Configuration: Standard. Center Electrode Tip Material: Nickel-Yttrium. Ground...
      Heavy-duty yttrium-enhanced copper core center electrode for a 50% longer performance life vs. even OE plugsTapered, v-profile nickel chromium ground electrode for improved starting in cold weather and increased fuel ignitability
      $2.74
    • Nitrode® Performance Spark Plug
      (0 reviews)
      # 78579294
      Chevy Silverado 2003, Performance Spark Plug by Nitrode®, 1 Piece. The Nitrode™ spark plugs is positioned to be the world's "greenest" most environmentally friendly spark plugs on the planet. Reducing fuel consumption and...
      The Nitrode™ is made with a proprietary ceramic exclusively used for this spark plugThis unique ceramic is over 10% harder than any ceramic know today
      $9.99
    • Pulstar® PlasmaCore Series Inconel Electrode Pulse Plug
      (2 reviews)
      # 21708831
      Chevy Silverado Gas 2003, PlasmaCore Series Inconel Electrode Pulse Plug by Pulstar®. PlasmaCore Series Inconel Electrode Pulse Plug provides great fuel efficiency as well as better performance. Moreover this part will give you...
      Increased horsepowerBetter torque
      $14.95 - $119.60
    • E3® Premium Automotive Spark Plug
      (0 reviews)
      # 87742080
      Chevy Silverado 2003, Premium Automotive Spark Plug by E3®. With Tapered Seat. Spark Plug Reach: 0.690". Hex Size: 5/8". Thread Size: 14mm. 1 Piece. If you need a replacement for your damaged spark plug, this is the part you should...
      Advanced DiamondFire electrode designProduces a faster burn
      $5.95
    • Taylor Cable® 8mm Spiro Pro Ignition Wire Set
      (0 reviews)
      # 87782853
      Chevy Silverado 2003, 8mm Spiro Pro Ignition Wire Set by Taylor Cable®. These plug wires are the top choice of racers and street enthusiasts for their high performance at an affordable price. With two layers of 100% silicone...
      8mm outer insulationSpiro-Pro wire with conductive spiral-wound core
      $52.87 - $55.62
    • Taylor Cable® 8mm Street Thunder Black Ignition Wire Set
      (0 reviews)
      # 87782869
      Chevy Silverado 2003, 8mm Street Thunder Black Ignition Wire Set by Taylor Cable®. Finish: Black. Get great performance at an extremely affordable price with Taylor’s Street Thunder ignition wires. These 8mm wires deliver all of...
      Low-resistance Kevlar helically spiral wound core conductor500 ohms resistance for EMI and RFI suppression
      $31.01
    • Taylor Cable® 409 Pro Race Custom Spiral Core Wire Set
      (0 reviews)
      # 87782840
      Chevy Silverado 2500 HD / 3500 Base / LS / LT 8.1L 2003, 409 Pro Race Custom Spiral Core Wire Set by Taylor Cable®. Spiral Wound Core. Diameter: 10.4mm. Taylor’s biggest ignition wire is available in red or blue, in custom sets...
      Double spring locking terminal100% pure silicone 10.4 mm outer jacket
      $87.36
    • Taylor Cable® 409 Pro Race Wire Set
      (0 reviews)
      # 87782848
      Chevy Silverado 2003, 409 Pro Race Wire Set by Taylor Cable®. Spiral Wound Core. Diameter: 10.4mm. These .409" / 10.4mm diameter high-performance custom-fit ignition wires are built for street or track applications. Guarantee your...
      100% silicone Pro-BootDouble spring locking terminal
      $76.44 - $76.45
    • Taylor Cable® Blue Extreme Service Wire Set
      (0 reviews)
      # 87770139
      Chevy Silverado 2500 HD / 3500 Base / LS / LT 8.1L 2003, Blue Extreme Service Wire Set by Taylor Cable®. Finish: Blue. Diameter: 10.4mm. These .409" / 10.4mm diameter high-performance custom-fit ignition wires are built for street...
      100% silicone Pro-BootDouble spring locking terminal
      $181.69
    • Taylor Cable® ThunderVolt™ 40 ohm Ferrite Core Performance Ignition Wire Set
      (0 reviews)
      # 87782888
      Chevy Silverado 2003, ThunderVolt™ 40 ohm Ferrite Core Performance Ignition Wire Set by Taylor Cable®. 40 ohm Ferrite Core. Gain horsepower and torque with Taylor’s Dyno-proven ThunderVolt racing plug wire sets. Low resistance...
      Exclusive copper/nickel alloy bonded by a conductive acrylic coverFerrite spiral-wound core provides low resistance for optimum RFI and RMI suppression
      $58.13 - $58.71
    • Taylor Cable® ThunderVolt™ 50 Black Ignition Wire Set
      (0 reviews)
      # 87782898
      Chevy Silverado 2003, ThunderVolt™ 50 Black Ignition Wire Set by Taylor Cable®. Finish: Black. Diameter: 10.4mm. DYNO-Tested and Track Proven to provide 5 HP and 7 lbs. torque more than the competition, ThunderVolt 50 ignition...
      10.4mm diameter40 Ohms/ft.
      $85.90 - $98.16
    • Karlyn STI® Spark Plug Wire Set
      (0 reviews)
      # 87298978
      Chevy Silverado 2003, Spark Plug Wire Set by Karlyn STI®. The purpose of good wire insulation is to protect the cable from voltage leaks. The single most important factor for rating insulation performance is the type of material...
      Spiral CoreStainless Steel Magnetic Conductive Winding
      $21.46 - $27.99
    • Blue Streak® High Performance Race Wire Set
      (2 reviews)
      # 23423524
      Chevy Silverado 4.8L / 5.3L / 6.0L 2003, High Performance Race Wire Set by Blue Streak®, Use 1 per Car. 9.0mm Wire. Round Coil. Designed with superior heat protection, the wire set provides 100% performance under all temperature...
      Patented conductor offers the lowest resistance (15 ohm/ft), more power to the plug, hotter spark, and longer spark durationPatented wire wound ferrite core ensures maximum suppression of RFI and EMI for high performance, static free electronics
      $83.90
    • Accel® Custom Fit Extreme 9000 Ceramic Spark Plug Wire Set
      (0 reviews)
      # 89547199
      Chevy Silverado 2003 Custom Fit Spark Plug Wire Set by Accel®. Threaded Diameter: 8 mm. Accel Extreme 9000 ceramic boot wire sets provide the ultimate in high heat resistance for performance applications.
      8mm Ferro-Spiral coreStainless Steel spark plug terminals
      $107.95 - $119.95
    • MSD® 8.5mm Spark Plug Wire Set
      (0 reviews)
      # 86780298
      Chevy Silverado 8.1L USA Built 2003, 8.5mm Spark Plug Wire Set by MSD®. Finish: Red. Includes: Red Super Conductor 8.5mm, Heat Guard. Designed utilizing the latest technology, this product by MSD features premium quality and will...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $118.95
    • MSD® Street-Fire Spark Plug Wire Set
      (0 reviews)
      # 87248909
      Chevy Silverado USA Built 2003, Street-Fire Spark Plug Wire Set by MSD®. Designed utilizing the latest technology, this product by MSD features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $37.69
    • MSD® Super Conductor Spark Plug Wire Set
      (0 reviews)
      # 86793185
      Chevy Silverado 8.1L USA Built 2003, Super Conductor Spark Plug Wire Set by MSD®. Designed utilizing the latest technology, this product by MSD features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $77.47
    • Taylor Cable® Magneto Ignition Coil
      (0 reviews)
      # 89545069
      Chevy Silverado V8 2003, Magneto Ignition Coil by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed utilizing the latest...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $1,452.50 - $1,641.50
    • Karlyn STI® Direct Ignition Coil
      (0 reviews)
      # 87298971
      Chevy Silverado 2003, Direct Ignition Coil by Karlyn STI®. The ignition coil is one of the most important part in the ignition system. Ignition Coil aimed to provide the needed high voltage and ignition energy for generating the...
      Place directly on the spark plugHigh temperature resistant
      $33.13 - $35.38
    • Accel® Super Coil Kit
      (0 reviews)
      # 12690115
      Chevy Silverado 2003 by Accel®. Accel Super Coils feature advanced bobbin technology, highly specialized silicone magnetic steel cores, along with optimized winding, resistance and turns ratios to deliver 10-15 percent more energy...
      The finest quality at a great priceImproves your engine's performance
      $45.87 - $404.95
    • MSD® Blaster LS Ignition Coil
      (0 reviews)
      # 87248896
      Chevy Silverado China Built 2003, Blaster LS Ignition Coil by MSD®. Designed utilizing the latest technology, this product by MSD features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $50.95 - $373.95
    • MSD® Pro Power Ignition Coil
      (0 reviews)
      # 86793167
      Chevy Silverado 1500 HD / 2500 China Built 2003, Pro Power Ignition Coil by MSD®. Designed utilizing the latest technology, this product by MSD features premium quality and will perform better than advertised. Perfect for your...
      Improved spark energy and voltage outputPatented winding design and materials
      $84.61 - $611.95
    • MSD® Street Fire Ignition Coil
      (0 reviews)
      # 86793172
      Chevy Silverado China Built 2003, Street Fire Ignition Coil by MSD®. Designed utilizing the latest technology, this product by MSD features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $40.75 - $296.95
    • BTP® HEI Distributor
      (0 reviews)
      # 69369349
      Chevy Silverado With Small Block 2003, HEI Distributor by BTP®. Distributors are high quality, made to last performance parts. Made with solid brass terminals and a multi polymer protective plastic cap. They include a cast aluminum...
      Designed to make your ignition system operate at its peakMade from superior materials
      $78.93
    • BTP® Pro Billet HEI Distributor
      (0 reviews)
      # 69369359
      Chevy Silverado With Small Block 2003, Pro Billet HEI Distributor by BTP®. BTP Billet Distributors have pre tuned mechanical weights and springs for optimal performance. Most engines with medium to serious cams do not benefit from...
      Designed to make your ignition system operate at its peakMade from superior materials
      $81.81
    • BTP® Pro Series Pro Billet Distributor
      (0 reviews)
      # 69369361
      Chevy Silverado With Big Block / With Small Block 2003, Pro Series Pro Billet Distributor by BTP®. BTP Pro Series Pro Billet distributors were designed with racers in mind. They feature a screw down cap with no maintenance magnetic...
      Designed to make your ignition system operate at its peakMade from superior materials
      $169.11
    • BTP® Pro Series Ready to Run HEI Distributor
      (0 reviews)
      # 69369363
      Chevy Silverado With Big Block / With Small Block 2003, Pro Series Ready to Run HEI Distributor by BTP®. BTP Pro Series Ready to Run distributors were built for you "Weekend Warriors", whether your cruising or headed to the track....
      Designed to make your ignition system operate at its peakMade from superior materials
      $183.24
    • Proform® HEI Distributor
      (0 reviews)
      # 84361847
      Chevy Silverado 2003, HEI Distributor by Proform®. If you are looking to enhance your vehicle's performance, then this top-notch product is definitely what you need. Manufactured from premium quality materials this Proform product...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $94.87 - $268.50
    • Proform® Hi-Performance HEI Distributor
      (0 reviews)
      # 84361874
      Chevy Silverado V8 2003, Hi-Performance HEI Distributor by Proform®. With Iron Gear. Without Coil. Material: Cast Aluminum. Finish: Natural. With Vacuum and Mechanical Advance. Built-In Coil Type with Magnetic Trigger. If you are...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $100.75 - $103.51
    • Proform® Officially Licensed GM HEI Distributor
      (0 reviews)
      # 85092047
      Chevy Silverado V8 2003, Officially Licensed GM HEI Distributor by Proform®. With Vacuum and Mechanical Advance. Built-In Coil with Magnetic Trigger. Material: Cast Aluminum. Type: with Steel Gear. Finish: Natural. If you are...
      Officially Licensed GM ProductsCarefully designed to improve the performance of your vehicle
      $152.01
    • Proform® Racing Type HEI Distributor
      (0 reviews)
      # 84361881
      Chevy Silverado V8 2003, Racing Type HEI Distributor by Proform®. Distributor Finish: Polished. With Cast Iron Gear. With Coil. Built-In Coil with Magnetic Trigger. Die Cast Aluminum with Polished Finish. If you are looking to...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $115.06 - $139.64
    • AEM® Engine Position Module
      (0 reviews)
      # 58233208
      Chevy Silverado 3500 2003, Engine Position Module by AEM®. If you’re converting your engine to a distributorless wasted-spark or coil-on-plug ignition system, this Engine Position Module (EPM) can be installed in place of the...
      Replaces factory ignition distributor when converting to wasted-spark or COP ignition systemProvides precise engine position signal to ECU
      $337.50
    • Crane Cams® HI-6RN Ignition Kit
      (0 reviews)
      # 98548758
      Chevy Silverado with Small-Block Engine 2003, HI-6RN Ignition Kit by Crane Cams®. Boot Style: 90 Degree. High-performance engine builders and street tuners who crave for maximum performance out of their vehicle, choose these...
      Designed to unlock more performance out of your vehicleBump up engine power to the next level
      $548.79
    • PerTronix® Second Strike Silver Ignition System
      (0 reviews)
      # 80869984
      Chevy Silverado 2003, Second Strike Silver Ignition System by PerTronix®. Capacitive/Inductive discharge Ignition Box Output, Digital Circuitry, None Timing Retard, Rev Limiter. Without Coil, Data Acquisition. Voltage: 18 V /...
      $290.96
    • PerTronix® Digital Rev Limiter
      (0 reviews)
      # 80869985
      Chevy Silverado 2003, Digital Rev Limiter by PerTronix®. Adjustable, Knob Adjustment Style, No Compatible with Multiple Coil Ignitions. Without Ignition Box Required. Polarity: 12 Volt negative ground. Flame-Thrower digital rev...
      $133.23
    • Taylor Cable® Ignition Coil Cover
      (0 reviews)
      # 89466830
      Chevy Silverado 4.8L / 5.3L / 6.0L 2003, Ignition Coil Cover by Taylor Cable®. Don’t let your engine bay look like the dumpster behind Radio Shack. These decorative coil covers will disguise those ugly coils and clean up your...
      1/4 turn Dzus fastenersAttaches to existing fasteners in minutes
      $251.18
    • Accel® Distributor Cap
      (0 reviews)
      # 12669443
      Chevy Silverado 4.3L 2003 Distributor Cap by Accel®. With Side Tower Distributor. Accel Heavy-Duty Caps offer superior protection from arc-thru and crossfire. Features hi-performance 60,000 volt alkyd compound, stress-relieved at...
      The finest quality at a great priceImproves your engine's performance
      $46.89
    • Champ Pans® Distributor Adviser Lockdown Plate
      (0 reviews)
      # 87185737
      Chevy Silverado 2003, Distributor Adviser Lockdown Plate by Champ Pans®. Designed utilizing the latest technology, this product by Titan features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $5.88 - $9.54
    • Crane Cams® Bronze Distributor Gear
      (0 reviews)
      # 98620181
      Chevy Silverado 6.6L 2003, Bronze Distributor Gear by Crane Cams®. High-performance engine builders and street tuners who crave for maximum performance out of their vehicle, choose these top-grade performance products painstakingly...
      Designed to unlock more performance out of your vehicleBump up engine power to the next level
      $42.15 - $87.11
    • Crane Cams® Steel Distributor Gear
      (0 reviews)
      # 98620185
      Chevy Silverado 6.6L 2003, Steel Distributor Gear by Crane Cams®. High-performance engine builders and street tuners who crave for maximum performance out of their vehicle, choose these top-grade performance products painstakingly...
      Designed to unlock more performance out of your vehicleBump up engine power to the next level
      $63.63
    • ARP® Distributor Stud Kit
      (0 reviews)
      # 95431564
      Chevy Silverado 4.3L 2003, Distributor Stud Kit by ARP®. Quantity: 1 Piece. Package Type: Skin. One of the most critical – yet often overlooked – fasteners used in any engine locks the timing in place. ARP offers these premium...
      $7.09 - $14.81
    • ARP® Hex Distributor Bolt Kit
      (0 reviews)
      # 95389435
      Chevy Silverado 4.3L 2003, Hex Distributor Bolt Kit by ARP®. Finish: Black. Material: 8740 Chrome Moly. Quantity: 1 Piece. Package Type: Skin. One of the most critical – yet often overlooked – fasteners used in any engine locks...
      $5.74
    • PerTronix® Flame-Thrower™ Distributor Cap and Rotor Kit
      (0 reviews)
      # 80886591
      Chevy Silverado V8 PerTronix 2003, Flame-Thrower™ Distributor Cap and Rotor Kit by PerTronix®. Clamp down Cap Attachment Style. With Rotor, without Cap Mounted Coil, Coil Dust Cover, Plug Wire Retainer. Material: Alkyd / Brass....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $30.26 - $43.06
    • PerTronix® Flame-Thrower™ Distributor Cap
      (0 reviews)
      # 80886595
      Chevy Silverado V8 PerTronix 2003, Flame-Thrower™ Distributor Cap by PerTronix®. Clamp down Cap Attachment Style. Trigger Style : Magnetic. Without Cap Mounted Coil, Coil Dust Cover, Plug Wire Retainer. Material: Alkyd / Brass....
      $31.77 - $31.79
    • PerTronix® HEI Ignition Wiring Harness and Capacitor
      (0 reviews)
      # 80870037
      Chevy Silverado V8 HEI 2003, HEI Ignition Wiring Harness and Capacitor by PerTronix®. From replacement wiring harness to adjustable vacuum advance canisters, lockout kits and mechanical advance kits, PerTronix has the parts to get...
      $21.48
    • Proform® Distributor Clamp
      (0 reviews)
      # 84361843
      Chevy Silverado 2003, Distributor Clamp by Proform®. With Stud, Nut and Washer. Material: High-Quality Aluminum. Heavy Duty Stud Mount. Sold Each. If you are looking to enhance your vehicle's performance, then this top-notch...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $16.95
    • Proform® Distributor Drive Gear
      (0 reviews)
      # 84279816
      Chevy Silverado V8 2003, Distributor Drive Gear by Proform®. Without Roll Pin. Material: High-Quality Iron. Sold Each. If you are looking to enhance your vehicle's performance, then this top-notch product is definitely what you...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $21.32
    • ACDelco® Professional™ Conventional Spark Plug
      (0 reviews)
      # 73568250
      Chevy Silverado 2003, Professional™ Conventional Spark Plug by ACDelco®. With coverage for most older vehicles on the road today and robust long-life design, ACDelco Professional Conventional Spark Plugs are an economical choice...
      Has a copper-core center electrode that helps provide improved heat transfer to the tip, giving you the reliability you’re looking for while improving its resistance to low-speed carbon fouling.Precisely engineered and manufactured to provide everyday reliability and efficient performance.
      $2.61
    • ACDelco® Professional™ Double Platinum Spark Plug
      (0 reviews)
      # 73568257
      Chevy Silverado 2003, Professional™ Double Platinum Spark Plug by ACDelco®. An ideal plug for vehicles requiring platinum performance or older vehicles calling for conventional plugs, ACDelco’s Professional Double Platinum...
      Dual platinum tip for improved resistance to spark erosion and corrosive combustion chamber environment.A platinum center electrode and a platinum pad lower the ignition voltage demand.
      $8.71
    • ACDelco® Professional™ Iridium Spark Plug
      (0 reviews)
      # 73494688
      Chevy Silverado 4.3L 2003, Professional™ Iridium Spark Plug by ACDelco®. Original Equipment. Gap 0.060. Step up to the latest spark plug technology with ACDelco’s Professional Iridium Spark Plugs. Designed to last more than...
      Iridium is one of the hardest metals used in spark plugs today, which allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration.Latest evolution in high-performance plug electrode material.
      $9.28
    • ACDelco® Professional™ Rapidfire™ Spark Plug
      (0 reviews)
      # 73568024
      Chevy Silverado 2003, Professional™ Rapidfire™ Spark Plug by ACDelco®. Designed for today’s most popular autos, as well as several marine applications, ACDelco’s Rapidfire® Platinum Spark Plugs fit engines using...
      Ribless insulator that improves the plug-to-boot seal.Tapered center wire electrode with a platinum pad reduces the firing diameter and helps improve the firing efficiency by concentrating and directing energy needed to fire the plug with less voltage.
      $5.60
    • Denso® Spark Plug
      (0 reviews)
      # 55205906
      Chevy Silverado 2003, Spark Plug by Denso®, 1 Piece. Is your vehicle hard to start? Does it miss under load and idle rough? Is your gas mileage not what it used to be? Your ignition system may need repair, but before you waste your...
      OE quality parts from top original equipment and aftermarket manufacturerFast shipping; 1-2 day delivery time regardless of where you’re located
      $2.26 - $10.20
    • Motorcraft® Copper Spark Plug
      (0 reviews)
      # 24441946
      Chevy Silverado 2003, Copper Spark Plug by Motorcraft®, 1 Piece. If you need to replace your worn-out spark plugs, Motorcraft is the way to go. Engineered specifically for your vehicle, their high melting point provides outstanding...
      Direct OEM replacementRecommended by Ford Motor Company
      $2.70 - $2.74
    • NGK® G-Power™ Spark Plug
      (0 reviews)
      # 100101957
      Chevy Silverado 2003, G-Power™ Spark Plug by NGK®. 5K Ohm, Copper Core, Electrod Material: Platinum. Hex Size: 5/8". Overal Height: ISO. Heat Range: 5. Seat Type: Tapered. Reach: 17.5mm. Thread Size: 14. Shape: Trapezoid....
      Designed for faster starts and quicker accelerationBetter fuel economy and lower emissions compared to a traditional plug
      $4.11 - $4.19
    • NGK® Iridium IX™ Spark Plug
      (0 reviews)
      # 100101962
      Chevy Silverado 2003, Iridium IX™ Spark Plug by NGK®. 5K Ohm, Copper Core, Electrod Material: Iridium. Hex Size: 5/8". Overal Height: ISO. Heat Range: 5. Seat Type: Tapered. Reach: 17.5mm. Thread Size: 14. Shape: Taper Cut....
      Designed for outstanding acceleration, high fuel efficiency, and durabilityEnsure a consistently stable spark
      $8.83 - $9.02
    • NGK® Laser Iridium™ Spark Plug
      (0 reviews)
      # 100101967
      Chevy Silverado 2003, Laser Iridium™ Spark Plug by NGK®. 5K Ohm, Copper Core, Electrod Material: Iridium. Hex Size: 5/8". Overal Height: ISO. Heat Range: 5. Seat Type: Tapered. Reach: 17.5mm. Thread Size: 14. Shape: Standard....
      Designed for faster starts and quicker accelerationBetter fuel economy and lower emissions
      $10.12
    • NGK® Laser Platinum™ Spark Plug
      (0 reviews)
      # 100101970
      Chevy Silverado 2003, Laser Platinum™ Spark Plug by NGK®. 5K Ohm, Copper Core, Electrod Material: Platinum. Hex Size: 5/8". Overal Height: ISO. Heat Range: 5. Seat Type: Tapered. Reach: 17.5mm. Thread Size: 14. Shape: Standard....
      Provide faster starts and quicker acceleration than a traditional plugEnsure better fuel economy and lower emissions compared to an original plug
      $10.77




    Guides & Articles

    • Performance Ignition Systems
      The Benefits of a Performance Ignition Distributor
      Since their inception at the start of the 20th century, motor vehicles with gasoline burning engines have needed a precise way to deliver an electrical spark to each of the engine's cylinders. (Note that diesel engines do not rely on an electrical spark to ignite the fuel-air mixture.) For much of the past 100 years, the spark has been delivered by the ignition distributor. The distributor is always mechanically linked or timed to the engine's rotation so that the spark is sent at the exact moment it is needed.
    • Performance Engine Parts
      Performing a Basic Engine Tune Up
      This article will guide you through a generic tune up on most any car or light duty gasoline-powered vehicle built within the last 20 years or so. We will presume that you are tuning up your engine because it has reached the mileage or time point to do so, and that you are NOT performing a tune up to cure an engine performance defect. We make this distinction because not all running/performance issues will be solved via a simple tune up.
    • Ignition Parts
      Understanding The Different Types Of Spark Plugs
      Since the dawn of the automobile, spark plugs have been an integral part of gasoline engines because they conduct the electrical energy from a vehicle’s ignition system needed to finalize the combustion process. After the gas/air mixture has been fully compressed inside the cylinder head, spark plugs serve a miniature bolt of lightning to create an explosion which pushes a piston downward.

    Popular Products

    2003 Chevy Silverado Performance Ignition Systems Reviews

    Average rating:  5  5 - 5 reviews
    4.8 of 5
    2 Terminal Heavy Duty Ignition Switches
    My previous switch lasted a year or so but quit working so I replaced it with Longacre Weatherproof Switch. Took a nice off-road ride today, about 120 minutes. Connections is good and wires are not hot. I recommend it to everybody.
    RPosted by Rev.Michael (Salem, SD) /
    2011 Jeep Wrangler
    Was this review helpful for you? Yes
    View More
    Related 2003 Chevy Silverado Pages
    2003 Chevy Silverado Models
    SECURE SHOPPING

    All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only.
    It is neither inferred nor implied that any item sold by CARiD.com, is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.