2003 Chevy Silverado Performance Ignition Systems

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    • E3® Spark Plug
      (2 reviews)
      # 12198407
      Chevy Silverado 2003, 0.690" Spark Plug by E3®. With Tapered Seat. Thread Size: 14 mm. Hex Size: 5/8". For a more efficient and complete burn, go with the super sturdy plugs by E3. The advanced DiamondFire plug features a...
      Advanced DiamondFire electrode designProduces a faster burn
      $5.95
    • Pulstar® PlasmaCore Series Inconel Electrode Pulse Plug
      (2 reviews)
      # 21708831
      Chevy Silverado 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 better...
      Increased horsepowerBetter torque
      $14.95 - $119.60
    • ZEX™ Power Tune Spark Plug
      (0 reviews)
      # 13908436
      Chevy Silverado 2003, Power Tune Spark Plug by ZEX™.
      Clean Fire TechnologyEnsures Max. HP And Reliable Ignition
      $6.41 - $51.31
    • Taylor Cable® 8mm Spiro Pro Ignition Wire Set
      (0 reviews)
      # 9392595
      Chevy Silverado V8 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 Ignition Wire Set
      (1 reviews)
      # 9399963
      Chevy Silverado V8 2003, 8mm Street Thunder Ignition Wire Set by Taylor Cable®. Get great performance at an extremely affordable price with Taylor’s Street Thunder ignition wires. These 8mm wires deliver all of the performance in...
      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)
      # 9387960
      Chevy Silverado 2500 HD V8 8.1L G Engine VIN Code 2003, 409 Pro Race Custom Spiral Core Wire Set by Taylor Cable®. Taylor’s biggest ignition wire is available in red or blue, in custom sets designed to fit muscle cars,...
      Double spring locking terminal100% pure silicone 10.4 mm outer jacket
      $87.36
    • Taylor Cable® 409 Pro Race Wire Set
      (0 reviews)
      # 9388563
      Chevy Silverado V8 2003, 409 Pro Race Wire Set by Taylor Cable®. These .409" / 10.4mm diameter high-performance custom-fit ignition wires are built for street or track applications. Guarantee your engine a fat spark to start the...
      100% silicone Pro-BootDouble spring locking terminal
      $76.44 - $76.45
    • Taylor Cable® Extreme Service Wire Set
      (0 reviews)
      # 9401383
      Chevy Silverado 2500 HD V8 8.1L G Engine VIN Code 2003, Blue Extreme Service Wire Set by Taylor Cable®. These .409" / 10.4mm diameter high-performance custom-fit ignition wires are built for street or track applications. Guarantee...
      100% silicone Pro-BootDouble spring locking terminal
      $181.69
    • Taylor Cable® ThunderVolt™ 40 ohm Ferrite Core Performance Ignition Wire Set
      (0 reviews)
      # 9403881
      Chevy Silverado V8 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...
      $58.13 - $58.71
    • Taylor Cable® ThunderVolt™ 50 Ignition Wire Set
      (0 reviews)
      # 9401439
      Chevy Silverado V8 2003, ThunderVolt™ 50 Ignition Wire Set by Taylor Cable®. DYNO-Tested and Track Proven to provide 5 HP and 7 lbs. torque more than the competition, ThunderVolt 50 ignition wires provide the ultimate in spark...
      10.4mm diameter40 Ohms/ft.
      $85.90 - $98.16
    • 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
      $71.89
    • Blue Streak® Premium™ Street Performance Wire Set
      (1 reviews)
      # 23423667
      Chevy Silverado 4.8L / 5.3L / 6.0L 2003, Premium™ Street Performance Wire Set by Blue Streak®, Use 1 per Car. 8.5mm Wire. Round Coil. Made with the same premium materials and the same high standards used for manufacturing wires...
      Patented conductor offers low resistance (170 ohm/ft), more power to the plug, a hotter spark, and longer spark durationPatented wire wound ferrite core ensures maximum suppression of RFI and EMI for high performance, static free electronics
      $33.98
    • MSD® Spark Plug Wire Set
      (1 reviews)
      # 13962673
      Chevy Silverado 2003, Spark Plug Wire Set by MSD®. The MSD 8.5mm Super Conductor Wire is "the" performance wire. Engineered from the inside out, the 8.5 offers everything you have everwanted in a wire; incredibly low resistance...
      Helically wound conductorSuppresses electro and radio noise
      $36.95 - $115.95
    • MSD® Ignition Coil
      (0 reviews)
      # 13962671
      Chevy Silverado 2003, Ignition Coil by MSD®. GM LQ Truck Series Single Coil. MSD Ignition’s Multiple Spark Coils (MSC) will fit in place of the stock Gen-III GM coils and connect directly to the factory connectors. Once...
      Direct replacement for many GM Gen III enginesAdvanced circuitry
      $83.60
    • Accel® Remote Mount Super Coil
      (0 reviews)
      # 12671013
      Chevy Silverado 4.3L LU3 Engine 2003, Remote Mount Super Coil by Accel®, This is an aftermarket part that replaces factory OE # 10489421. Primary Resistance 0.2 Ohms / Secondary 6.7 k Ohms. Turn Ratio 92:1. Max Voltage 48000V....
      The finest quality at a great priceImproves your engine's performance
      $53.83
    • Accel® Super Coil
      (0 reviews)
      # 12690115
      Chevy Silverado 2003, Super Coil by Accel®, Including Silicon Magnetic Steel Cores. Accel Super Coils feature advanced bobbin technology, highly specialized silicone magnetic steel cores, along with optimized winding, resistance...
      The finest quality at a great priceImproves your engine's performance
      $49.19
    • Accel® Billetech™ Distributor
      (0 reviews)
      # 12680753
      Chevy Silverado 4.3L LU3 Engine 2003, Billetech™ Distributor by Accel®. Accel BilleTech late model replacement distributors are the perfect replacement for the factory distributor in your late model car or truck. All BilleTech...
      6061 T6 Billet aluminum housingCenterless ground steel shaft
      $306.68 - $314.41
    • Accel® Performance Replacement™ HEI Distributor with Vacuum Advance
      (0 reviews)
      # 12670769
      Chevy Silverado 4.3L LU3 Engine 2003, Performance Replacement™ Distributor with Vacuum Advance with HEI by Accel®. Accel Performance Replacement Distributors are the perfect choice for your daily driver or street machine. Using...
      High Performance Accel ElectronicsNew components - housings are either new castings or turned from Billet stock
      $289.02
    • AEM® Engine Position Module
      (0 reviews)
      # 58233313
      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
      $321.30
    • Taylor Cable® Ignition Coil Cover
      (0 reviews)
      # 9387785
      Chevy Silverado V8 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 engine compartment....
      1/4 turn Dzus fastenersAttaches to existing fasteners in minutes
      $251.18
    • Accel® Black Distributor Rotor Heavy Duty
      (0 reviews)
      # 12669984
      Chevy Silverado 4.3L LU3 Engine 2003, Black Distributor Rotor Heavy Duty by Accel®. Accel Hi-Performance rotors offer superior protection from arc-thru and crossfire. Features hi-performance 60,000 volt alkyd compound,...
      The finest quality at a great priceImproves your engine's performance
      $15.12
    • Accel® Distributor Cap with Side Tower Distributor
      (0 reviews)
      # 12669461
      Chevy Silverado 4.3L LU3 Engine 2003, Distributor Cap with Side Tower Distributor by Accel®. Accel Heavy-Duty Caps offer superior protection from arc-thru and crossfire. Features hi-performance 60,000 volt alkyd compound,...
      The finest quality at a great priceImproves your engine's performance
      $46.87
    • MSD® Ignition Wiring Harness
      (0 reviews)
      # 13953678
      Chevy Silverado 4.3L 2003, Ignition Wiring Harness by MSD®. MSD Ignition Controls are easy to install, but we also offer several plug-in Harnesses. These are especially handy for quick installation on late model vehicles! The...
      Plug-In harness with color coded wiresNo cutting or splicing
      $38.95
    • Autolite® Spark Plug
      (0 reviews)
      # 22428460
      Chevy Silverado 2003, Spark Plug by Autolite®, 1 Piece. These spark plugs by Autolite are specially designed and manufactured to ensure quick starts, dependable performance, and smooth acceleration. The products are made of premium...
      Designed for good conductivity and a strong spark for efficient combustionImprove engine power and fuel economy
      $4.30 - $9.98
    • Champion® Spark Plug
      (0 reviews)
      # 22252362
      Chevy Silverado 2003, Spark Plug by Champion®. Designed and manufactured to meet or exceed OE standards and specifications, these spark plugs by Champion ensure fast engine start-up and smooth acceleration. The products are made of...
      Designed to provide dependable and long-lasting performanceManufactured using the latest processes and equipment
      $2.98 - $9.78
    • 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
      $2.54 - $9.50
    • 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
    • NGK® Spark Plug
      (0 reviews)
      # 22235116
      Chevy Silverado 2003, Spark Plug by NGK®, 1 Piece. With a solid copper core, triple-gasket sealing, corrosion resistant plating, cold-rolled threads, and corrugated ribs, these products provide a powerful spark for reliable...
      Designed for consistent performanceMeet OE quality, fit, and function
      $2.78 - $14.80
    • Bosch® Spark Plug Wire Set
      (0 reviews)
      # 23964469
      Chevy Silverado 2003, Spark Plug Wire Set by Bosch®. Switch from your OE spark plug wire set to the high-quality Mag core wire set from Bosch. Stainless steel Mag winding delivers maximum voltage to the spark plug for a hotter,...
      Opti-layer Mag technology for superior lifetime performanceReduces the chance for misfire and eliminates radio static
      $31.00 - $52.23
    • Denso® Primary Ignition Wire
      (0 reviews)
      # 21034203
      Chevy Silverado 2003, Primary Ignition Wire by Denso®. 7mm. Complete Ignition Wire Set. The 7 and 8mm ignition wires are SAE J2031 Class E rated, the highest quality wire used in the industry. These wires can withstand temperatures...
      Carbon impregnated fiberglass core for superior support conductivityFiberglass braid for maximum strength
      $29.09 - $53.97
    • Standard® Pro Series™ Spark Plug Wire Set
      (0 reviews)
      # 61339556
      Chevy Silverado 2003, Pro Series™ Spark Plug Wire Set by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $26.61 - $30.93
    • Prestolite® Ignition Wire Set
      (0 reviews)
      # 7862374
      Chevy Silverado 4.8L / 5.3L / 6.0L 2003, Ignition Wire Set by Prestolite®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $53.05 - $55.87
    • Beck Arnley® Direct Ignition Coil
      (0 reviews)
      # 36236268
      Chevy Silverado 2003, Direct Ignition Coil by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles...
      OE quality products from top original equipmentTop quality materials
      $63.55
    • Delphi® Ignition Coil
      (0 reviews)
      # 24569810
      Chevy Silverado 2003, Ignition Coil by Delphi®. Help ensure fast starts, consistent engine performance and optimized fuel efficiency with Delphi ignition coils. Delphi makes more than 10 million ignition coils for North America...
      Designed and endurance tested to resist the common stresses that cause failureEfficient coil design that ensures the power in the coil has a streamlined path to the spark plug
      $36.09 - $57.93
    • Denso® Direct Ignition Coil
      (0 reviews)
      # 21079501
      Chevy Silverado 2003, Direct Ignition Coil - Coil on Plug by Denso®. A leader in direct ignition technology, Denso developed the auto industry's first compact stick-type ignition coil. The space-saving design, since adopted by many...
      Improved coil efficiency reduces the need to generate high voltageDriving circuit is integrated into top of coil
      $42.46 - $66.60
    • Spectra Premium® Ignition Coil
      (0 reviews)
      # 57173164
      Chevy Silverado 4.8L / 5.3L 2003, Ignition Coil by Spectra Premium®. Spectra Premium ignition coils are designed and produced under a strict TS16949 quality control process.
      All ignition coils are durability tested at 100 cycles of thermal shock (-50 to 300° F), to ensure reliability from extreme vibration24 hours salt spray test ensures sensors provide high corrosion resistance
      $23.88
    • Standard® Tru-Tech™ Ignition Coil
      (0 reviews)
      # 23835190
      Chevy Silverado 2003, Tru-Tech™ Ignition Coil by Standard®. 12 Volt. Terminal Type: Blade. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $27.12 - $28.61
    • Prenco® Central Ignition Coil
      (0 reviews)
      # 53268572
      Chevy Silverado 2003, Central Ignition Coil by Prenco®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $70.23 - $93.55
    • Cardone® Distributor
      (0 reviews)
      # 35884275
      Chevy Silverado 4.3L 2003, Replacement Electronic Distributor Without Module by Cardone®. Automated test equipment verifies signal strength, correct polarity of wire harness, air gap, crank reluctor tooth size, as well as ignition...
      50-state emissions street legalThe finest quality at a great price
      $67.38 - $83.66
    • Delphi® OE Ignition Distributors
      (0 reviews)
      # 24569818
      Chevy Silverado 1500 4.3L 2003, OE Ignition Distributors by Delphi®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $11.49 - $164.52
    • Standard® TechSmart™ Distributor
      (0 reviews)
      # 45068787
      Chevy Silverado 4.3L 2003, TechSmart™ Distributor by Standard®. Complete Assembly. New Body Style. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products,...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $95.46
    • Richporter® Ignition Distributor
      (0 reviews)
      # 7838584
      Chevy Silverado 4.3L 2003, Ignition Distributor by Richporter®. With Cap-Rotor without Coil. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $285.71
    • Delphi® Ignition Wires
      (0 reviews)
      # 24569820
      Chevy Silverado 2003, Ignition Wires by Delphi®. Delphi ignition wire sets provide premium performance in every application because they use OE cable configurations - Delcore, Composite High Temperature or Wire Wound (where...
      Pre-greased spark plug boots (where applicable) for quicker installationDelphi Packard marked cable - OE component confirmation
      $45.63 - $66.11
    • Standard® Tru-Tech™ Alternator Connector
      (0 reviews)
      # 23768404
      Chevy Silverado 2003, Tru-Tech™ Alternator Connector by Standard®, Use 1 per Car. Type Connection: Male, Female. Black. Length: 6 1/2". Terminal Type: Pin Socket. 4 Terminal Female. Is your vehicle hard to start? Does it miss...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $25.82
    • Dorman® Ignition Coil Connector
      (0 reviews)
      # 25578481
      Chevy Silverado 1500 / 1500 HD 2003, Ignition Coil Connector by Dorman®, 1 Pieces. This is an aftermarket part that replaces factory OE # 88987992. Material: Plastic. Packaging Type: Box. Color: Brown. Wire: 3 Wire with Leads....
      Available in different wire configurations, including 2- and 3-wireDirect replacement Ignition Coil Connectors available (where applicable) to ensure a proper fit
      $26.64
    • Standard® Handypack™ Ignition Coil Connector
      (0 reviews)
      # 44003117
      Chevy Silverado 2003, Handypack™ Ignition Coil Connector by Standard®. Gray. 4 Terminal Female. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products,...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $21.57
    • Standard® Ignition Coil Connector
      (0 reviews)
      # 63918219
      Chevy Silverado 2003, Ignition Coil Connector by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $29.21 - $37.87
    • Beck Arnley® Distributor Cap
      (0 reviews)
      # 36223130
      Chevy Silverado 4.3L 2003, Distributor Cap by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles...
      OE quality products from top original equipmentTop quality materials
      $27.82
    • Beck Arnley® Distributor Rotor
      (0 reviews)
      # 36223131
      Chevy Silverado 4.3L 2003, Distributor Rotor by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles...
      OE quality products from top original equipmentTop quality materials
      $9.87
    • Fel-Pro® Distributor Mounting Gasket
      (0 reviews)
      # 18902329
      Chevy Silverado 4.3L 2003, Distributor Mounting Gasket by Fel-Pro®, Crankcase Vent Cover Tube Gasket. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $1.18
    • Standard® Distributor Ignition Pickup Connector
      (0 reviews)
      # 63916997
      Chevy Silverado 2003, Distributor Ignition Pickup Connector by Standard®. 3 Terminals Female Connector. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products,...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $14.23 - $22.92
    • Standard® Tru-Tech™ Distributor Cap
      (0 reviews)
      # 23771298
      Chevy Silverado 4.3L 2003, Tru-Tech™ Distributor Cap by Standard®, Use 1 per Car. Type Connection: Female. No Distributor Vent. Style: Bolt On. Black. Aluminum, Rynite. Is your vehicle hard to start? Does it miss under load and...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $28.08
    • Standard® Tru-Tech™ Distributor Ignition Pickup
      (0 reviews)
      # 23773540
      Chevy Silverado 4.3L 2003, Tru-Tech™ Distributor Ignition Pickup by Standard®, Use 1 per Car. Type Connection: Male. Terminal Type: Blade. Is your vehicle hard to start? Does it miss under load and idle rough? Is your gas mileage...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $27.22
    • Standard® Tru-Tech™ Distributor Rotor
      (0 reviews)
      # 23774791
      Chevy Silverado 4.3L 2003, Tru-Tech™ Distributor Rotor by Standard®, Use 1 per Car. Includes: Distributor Rotor. Is your vehicle hard to start? Does it miss under load and idle rough? Is your gas mileage not what it used to be?...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $10.12
    • Victor Reinz® Distributor Mounting Gasket
      (0 reviews)
      # 24035032
      Chevy Silverado 4.3L 2003, Distributor Mounting Gasket by Victor Reinz®, Use 1 per Car. Material: Paper. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain...
      $1.02
    • Dorman® Ignition Lock Components
      (0 reviews)
      # 34112507
      Chevy Silverado 2003, Ignition Lock Components by Dorman®, 1 Pieces. Material: Metal. Packaging Type: Box. Dorman Ignition Lock Cylinders are part of the Ignition Lock Assembly. The purpose of the Ignition Lock Cylinder is to...
      Direct replacement and operationIncludes easy to follow instructions with no need for any specialized tools or equipment
      $39.68 - $65.81
    • Dorman® Ignition Starter Switch
      (0 reviews)
      # 16854342
      Chevy Silverado 2003, Ignition Starter Switch by Dorman®, 1 Piece. Steering Column. With 1 switch and instruction sheet, Not Required Mounting Hardware, without Key and Tumbler, Key Programmable. Packaging Type: Box. Black. An...
      This part has undergone a rigorous quality inspection to ensure high qualityIncludes bezel for a complete repair
      $19.19
    • Dorman® Knock Sensor Harness
      (0 reviews)
      # 34097021
      Chevy Silverado CNG / Flex / Gas 2003, Knock Sensor Harness by Dorman®, 1 Pieces. This is an aftermarket part that replaces factory OE # 12601822. Material: Copper. Packaging Type: Box. Shape: Oval. Fork, Water Resistant. Includes:...
      Direct replacement for a proper fitNecessary replacement item for passing state inspection
      $26.26
    • Standard® Diesel Glow Plug Controller
      (0 reviews)
      # 64708448
      Chevy Silverado 6.6L 2003, Diesel Glow Plug Controller by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $109.86 - $133.15
    • Standard® Diesel Glow Plug Relay
      (0 reviews)
      # 63769118
      Chevy Silverado Diesel 2003, Diesel Glow Plug Relay by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $115.83



    Guides & Articles
    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...
    The question of whether to buy parts from an automotive dealer vs. ones from aftermarket manufacturers is as age-old as the automobile itself. Below, we'll take a look at things worth considering to help you make a better choice if you're facing that same question. Automobile manufacturers and dealerships always advertise the fact that their parts are "genuine"...
    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...
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    2003 Chevy Silverado Models
    • 2003 Chevy Silverado 1500 Base Performance Ignition Systems
    • 2003 Chevy Silverado 1500 LS Performance Ignition Systems
    • 2003 Chevy Silverado 1500 LT Performance Ignition Systems
    • 2003 Chevy Silverado 1500 SS Performance Ignition Systems
    • 2003 Chevy Silverado 1500 WT Performance Ignition Systems
    • 2003 Chevy Silverado 1500 HD LS Performance Ignition Systems
    • 2003 Chevy Silverado 1500 HD LT Performance Ignition Systems
    • 2003 Chevy Silverado 2500 Base Performance Ignition Systems
    • 2003 Chevy Silverado 2500 LS Performance Ignition Systems
    • 2003 Chevy Silverado 2500 LT Performance Ignition Systems
    • 2003 Chevy Silverado 2500 HD Base Performance Ignition Systems
    • 2003 Chevy Silverado 2500 HD LS Performance Ignition Systems
    • 2003 Chevy Silverado 2500 HD LT Performance Ignition Systems
    • 2003 Chevy Silverado 3500 Base Performance Ignition Systems
    • 2003 Chevy Silverado 3500 LS Performance Ignition Systems
    • 2003 Chevy Silverado 3500 LT Performance Ignition Systems