2003 GMC Envoy Performance Ignition Systems

Change Vehicle
Show items:
Sort by:
Select Engine
  • Select Engine
  • 4.2L
  • 5.3L
  • Spark Plugs
  • Spark Plug Wires
  • Ignition Coils
  • Distributors
  • Ignition Boxes
  • Ignition Tools
    • (0 reviews)
      # mpn2065022169
      GMC Envoy / Envoy XL 4.2L 2003, Premium Automotive Nickel Spark Plug with Resistor by E3®. It fits a wide variety of late model applications, especially import. E3 automotive plugs have three legs securing the DiamondFIRE electrode to...
      Advanced DiamondFire electrode designProduces a faster burn
      $23.10
    • (1 review)
      # 803908341
      GMC Envoy XL 4.2L 2003, PlasmaCore™ Inconel Electrode Pulse Nickel Spark Plugs with Resistor by Pulstar®. Inconel-electrode Pulse Plugs. Designed specifically for most popular vehicles, PlasmaCore™ Inconel Electrode Pulse Plug...
      Increased horsepowerBetter torque
      $14.95 - $89.70
    • (0 reviews)
      # mpn1588768318
      GMC Envoy XL 5.3L 2003, Super Coil Kit with Horizontal Bracket by Accel®. Accel Super Coils feature advanced bobbin technology, highly specialized silicone magnetic steel cores, along with optimized winding, resistance and turns ratios...
      High temp epoxy resists shock and vibrationAdvanced bobbin technology
      $45.95
    • (3 reviews)
      # 903530496
      GMC Envoy 2003, Performance Nickel Spark Plug by Nitrode®. The Nitrode™ spark plugs are positioned to be the world's "greenest" most environmentally friendly spark plugs on the planet. Reducing fuel consumption and emissions while...
      The Nitrode™ is made with a proprietary ceramic exclusively used for this spark plugThis unique ceramic is over 10% harder than any ceramic known today
      $8.09
    • (0 reviews)
      # mpn2046361490
      GMC Envoy XL 5.3L 2003, Copper Spark Plug with Resistor by Autolite®. OE Style. These spark plugs by Autolite are specially designed and manufactured to ensure quick starts, dependable performance, and smooth acceleration. The products...
      Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)Multi-rib insulator reduces danger of "flash-over"
      $2.44
    • (0 reviews)
      # mpn1892042
      GMC Envoy / Envoy XL 4.2L 2003, Platinum Spark Plug by Autolite®. OE Style. Manufactured with a center wire platinum firing tip, these platinum spark plugs reduce gap erosion for fewer misfires, while ensuring easier starts, quicker...
      Designed for excellent performance and superior durabilityEnsure high temperature, pressure, and corrosion resistance for long-lasting service life
      $4.35
    • (0 reviews)
      # mpn4498087303
      GMC Envoy 2003, Iridium Yttrium Performance Spark Plug by Brisk®. Thread Size: 14 mm. Reach Size: 1" (25 mm). Hexagon Size: 5/8" (16 mm). Heat Range: 15. Type: Projected. With Resistor. Iridium Yttrium Performance Spark Plug are the...
      Iridium is 6X harder & 8X stronger than platinumLong lasting OEM performance replacement
      $10.99
    • (0 reviews)
      # 876475248
      GMC Envoy 2003, Premium EVO Spark Plug by Brisk®. Thread Size: 14 mm. Reach Size: 1" (25 mm). Hexagon Size: 5/8" (16 mm). Heat Range: 15. Type: Projected. With Resistor. Unique Spark Plug Produced Patented Laser Technology Unique...
      Perfect ignition of fuel mixture in engine cylindersUnrestricted flame throughout combustion chamber
      $14.99
    • (0 reviews)
      # 898251775
      GMC Envoy 2003, Premium Racing LGS Spark Plug by Brisk®. Thread Size: 14 mm. Reach Size: 1" (25 mm). Hexagon Size: 5/8" (16 mm). Heat Range: 15. Brisk Premium LGS spark plug has been developed after two-year cooperation with Lamborghini...
      High-Potential Semi-Surface discharge equals more powerDischarge at the point of richest mixture in 360° perimeter
      $13.99
    • (0 reviews)
      # 898248659
      GMC Envoy 2003, Silver Racing Spark Plug by Brisk®. Thread Size: 14 mm. Reach Size: 1" (25 mm). Hexagon Size: 5/8" (16 mm). Heat Range: 15. Type: Projected. With Resistor. Brisk Silver Racing Spark Plugs are the best solution for high...
      Silver is the best conductor of thermal heat & electricitySuperior ignition ability increases engine power
      $10.99
    • (0 reviews)
      # mpn4498087293
      GMC Envoy / Envoy XL 4.2L 2003, Super Yttrium Alloy Electrode Spark Plug by Brisk®. Thread Size: 14 mm. Reach Size: 1" (25 mm). Hexagon Size: 5/8" (16 mm). Heat Range: 15. The center electrode is from special nickel-yttrium alloy with...
      Manufactured to meet or exceed strict quality requirementsMade from high-quality materials for ultimate durability
      $6.99
    • (0 reviews)
      # 209768190
      GMC Envoy XL 5.3L 2003 Prestolite ProConnect™ Spark Plug Wire Set by Accel®. ProConnect ignition wire sets meet or exceed OE/OES specifications, performance and quality. These cables match the original color and are designed to...
      Carbon impregnated fiberglass coreFiberglass braid for added strength
      $41.82 - $64.34
    • (0 reviews)
      # mpn4499447033
      GMC Envoy / Envoy XL 2003, Ignition Tune Up Kit by PSI®. Upon checkout, customer can choose which style oxygen sensor is required (4 wire flat black, 4 wire square black, 4 wire square gray). All PSI Drive By Cable harnesses come with 4...
      Designed for ultra high efficiencyEasy out-of-the-car access for an ancillary wiring
      $215.00
    • (0 reviews)
      # 904805758
      GMC Envoy 2003, Ignition Coil by Accel®. This superior ignition coil is painstakingly designed to improve spark energy and provide ultra high efficiency. Engineered with great care, it delivers the voltage you need for increased...
      Designed to provide original equipment fit, form and functionManufactured using high quality materials and processes
      $41.17 - $56.81
    • (0 reviews)
      # 688239209
      GMC Envoy 2003, STI 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 high...
      Place directly on the spark plugHigh temperature resistant
      $37.68 - $41.66
    • (0 reviews)
      # 904825444
      GMC Envoy XL 5.3L With Chevy Small Block Gen III/IV (LS-based) Engines 2003, High Performance Ignition Coil by TSP®.
      Designed for ultra high efficiencyProvides better performance
      $39.51 - $280.98
    • (0 reviews)
      # mpn2870416149
      GMC Envoy 2003 Prestolite ProConnect™ Coil-on-Plug Boots by Accel®. Designed utilizing the latest technology, this product by Accel features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Direct-fit replacementHighly specialized silicone-magnetic steel cores and optimized windings
      $12.38
    • (0 reviews)
      # mpn4483769672
      GMC Envoy XL 5.3L With Chevy Small Block Gen III/IV (LS-based) Engines 2003, Ignition Coil Extension Cable by TSP®. Designed utilizing the latest technology, this product by TSP features premium quality and will perform better than...
      Designed for ultra high efficiencyProvides better performance
      $16.83
    • (0 reviews)
      # mpn4483769679
      GMC Envoy XL 5.3L With Chevy Small Block Gen III/IV (LS-based) Engines 2003, Ignition Coil Relocation Harnesses by TSP®. Designed utilizing the latest technology, this product by TSP features premium quality and will perform better than...
      Designed for ultra high efficiencyProvides better performance
      $42.07
    • (0 reviews)
      # mpn4499447025
      GMC Envoy / Envoy XL 2003, Coil Extension Harness by PSI®. 36". Extensions are 36" long and ideal for relocating coils on the firewall when using custom valve covers on your engine. All extensions feature GM Delphi components and high...
      Designed for ultra high efficiencyEasy out-of-the-car access for an ancillary wiring
      $45.00
    • (0 reviews)
      # 906647097
      GMC Envoy / Envoy XL 2003, Coil Sub-Harness by PSI®. These sub-harnesses are meant as direct replacements for the coil harness that ties all coils together and then attaches to the Standalone Engine Harness. All sub-harnesses feature GM...
      Designed for ultra high efficiencyEasy out-of-the-car access for an ancillary wiring
      $45.00
    • (0 reviews)
      # mpn3557984022
      GMC Envoy XL 5.3L 2003, Distributor Bolt Kit by Stage 8®. Stage 8 manufacturers the World's Best Active Mechanical Locking systems. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $6.89
    • (0 reviews)
      # mpn4254009282
      GMC Envoy XL 5.3L With Flame-Thrower HEI Distributor 2003, Wire Harness and Capacitor by PerTronix®. From replacement wiring harness to adjustable vacuum advance canisters, lockout kits and mechanical advance kits, they have the parts...
      Digital performance solutions give you more power and more features in a smaller packageInnovative technology for superior operation and rugged dependability under harsh conditions
      $24.58
    • (0 reviews)
      # 904803332
      GMC Envoy XL 5.3L With Chevy Small Block Gen III/IV (LS-based) Engines 2003, Coil Brackets by TSP®. Designed utilizing the latest technology, this product by TSP features premium quality and will perform better than advertised. Perfect...
      Designed for ultra high efficiencyProvides better performance
      $56.10 - $89.94
    • (0 reviews)
      # 904826349
      GMC Envoy XL 5.3L With Chevy Small Block Gen III/IV (LS-based) Engines 2003, Ignition Coil Relocation Brackets by TSP®. Designed utilizing the latest technology, this product by TSP features premium quality and will perform better than...
      Designed for ultra high efficiencyProvides better performance
      $42.07 - $44.88
    • (0 reviews)
      # mpn4476750634
      GMC Envoy / Envoy XL 4.2L 2003, OE Specialty Double Iridium Spark Plug by Bosch®. Bosch Iridium Spark Plugs are engineered to deliver both high performance and long life, representing the best of OE spark plug technology. The ultra-fine...
      Double Iridium firing pin and ground electrode pin on (application specific) pin-to-pin spark plugsLaser weld provides superior retention of iridium alloy pin to the ground electrode
      $5.74
    • (2 reviews)
      # 708077561
      GMC Envoy 2003, Professional™ Double Platinum 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 conventional...
      Ribless insulator that improves the plug-to-boot sealTapered 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
      $5.33 - $5.58
    • (0 reviews)
      # 708149955
      GMC Envoy 2003, Professional™ Rapidfire Platinum 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 conventional...
      Ribless insulator that improves the plug-to-boot sealTapered 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
      $3.22
    • (0 reviews)
      # mpn2341128
      GMC Envoy XL 5.3L 2003, Double Platinum Spark Plug by Champion®. With platinum fine wire welded onto the nickel alloy center electrode and a platinum pad welded to the ground electrode, these products provide long-lasting service life...
      Double Platinum Power - Premium Spark Plug. More Powerful Performance.Platinum center and ground electrode for greater wear resistance
      $4.66
    • (0 reviews)
      # 524084447
      GMC Envoy 2003, Iridium Spark Plug by Champion®. As the leaders in precious metal technologies as well as F.I.S.S resistor technology and MLR™ technology, Champion spark plugs provide enhanced ignition and longer life.
      Champion Iridium - Maximum Performance. Premium Spark PlugIridium center electrode delivers maximum life
      $5.12 - $5.72
    • (0 reviews)
      # mpn2326798
      GMC Envoy XL 5.3L 2003, Nickel 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...
      Copper Plus - Dependable Performance.Copper core center electrode allows for accurate control of heat range for longer life
      $1.58
    • (0 reviews)
      # 524080687
      GMC Envoy 2003, Platinum Power™ Spark Plug by Champion®. With a platinum tip welded to a nickel alloy center electrode, these spark plugs provide superior wear characteristics. Combining a thin-wire center electrode with a V-trimmed...
      Platinum center electrode reduces gap growth, lowering the voltage requirements, in turn reducing the chance of misfireThin center electrode and v-trimmed ground electrode enhance ignitability and reduce quenching
      $2.18 - $4.66
    • (0 reviews)
      # mpn914916167
      GMC Envoy XL 5.3L 2003, GM Original Equipment™ Spark Plug Wire by ACDelco®. Individual Lead, Black Cable. Built to match the Original Equipment in length and fit, ACDelco GM OE Ignition Wire Sets also offer a performance advantage...
      ACDelco GM OE wire sets are designed to be like Original Equipment in critical areas such as cable length and diameter, terminal design and insulator positionHave broad coverage available for most vehicles on the road today from 1980 to present
      $16.52
    • (0 reviews)
      # 840483268
      GMC Envoy XL 5.3L 2003, GM Original Equipment™ Spark Plug Wire Set by ACDelco®. Built to match the Original Equipment in length and fit, ACDelco Professional Ignition Wire Sets also offer a performance advantage over many aftermarket...
      Designed to match Original Equipment wire sets in critical areas such as cable length and diameter, terminal design and insulator positionHave broad coverage available for most vehicles on the road today from 1980 to present
      $120.34 - $123.01
    • (0 reviews)
      # mpn524417642
      GMC Envoy XL 5.3L 2003, Pro Series™ Spark Plug Wire Set by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your vehicle and...
      The design of this set strictly follows the original specifications set by OEManufactured using OE-Style spark plug and distributor boots
      $26.61
    • (0 reviews)
      # 603716329
      GMC Envoy XL 5.3L 2003, Spark Plug Wire Set by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $28.56 - $78.58
    • (0 reviews)
      # mpn4252167150
      GMC Envoy XL 5.3L 2003, GM Original Equipment™ Ignition Coil by ACDelco®. Designed utilizing the latest technology, this product by ACDelco 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
      $57.94
    • (0 reviews)
      # mpn4253197217
      GMC Envoy 2003, Direct Ignition Coil by Beck Arnley®. Designed utilizing the latest technology, this product by Beck Arnley features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Provides excellent starting connectionEngineered from premium materials
      $60.99
    • (0 reviews)
      # 81767512
      GMC Envoy 2003, Ignition Coil by Delphi®. Delphi OE technology ignition products are validated to match the vehicles system. OE quality replacement parts for the right fit, form and function. Designed utilizing the latest technology,...
      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
      $36.96 - $43.67
    • (0 reviews)
      # mpn4256498908
      GMC Envoy XL 5.3L 2003, 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 your time...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $57.09
    • (1 review)
      # mpn4256409803
      GMC Envoy XL 5.3L 2003, Central Ignition Coil by Richporter®. 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 manufacturersThe finest quality at a great price
      $41.40
    • (0 reviews)
      # 124380018
      GMC Envoy 2003, Ignition Coil by Spectra Premium®. Spectra Premium ignition coils are designed and produced under a strict TS16949 quality control process. At CARiD you can get this superior replacement product and take advantage of its...
      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
      $18.37 - $27.25
    • (0 reviews)
      # 491719652
      GMC Envoy with 12 Volt System 2003, Ignition Coil by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $27.44 - $47.28
    • (0 reviews)
      # 223626452
      GMC Envoy 2003, Tru-Tech™ Ignition Coil by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $21.34 - $31.66
    • (0 reviews)
      # mpn4256315620
      GMC Envoy / Envoy XL 2003, Ignition Coil by WAI Global®. Designed utilizing the latest technology, this product by WAI Global features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $18.27
    • (0 reviews)
      # mpn888509237
      GMC Envoy / Envoy XL 2003, GM Original Equipment™ Ignition Switch by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $22.29
    • (0 reviews)
      # mpn914916161
      GMC Envoy XL 5.3L 2003, GM Original Equipment™ Ignition Coil Wire by ACDelco®. Built to match the Original Equipment in length and fit, ACDelco GM OE Ignition Wire Sets also offer a performance advantage over many aftermarket products.
      ACDelco GM OE wire sets are designed to be like Original Equipment in critical areas such as cable length and diameter, terminal design and insulator positionHave broad coverage available for most vehicles on the road today from 1980 to present
      $74.05
    • (0 reviews)
      # mpn1279841930
      GMC Envoy XL 5.3L 2003, GM Original Equipment™ Spark Plug Wire Heat Shield by ACDelco®. Designed with precision and functionality in mind this product ensures ultimate durability and provides the highest level of quality. This product...
      Provide a high degree of Radio Frequency Interference (RFI) suppression.Are designed to offer fit, form and function for optimum performance.
      $4.23
    • (0 reviews)
      # mpn4252175406
      GMC Envoy XL 5.3L 2003, GM Original Equipment™ Ignition Coil Mounting Bracket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $41.91
    • (0 reviews)
      # mpn4252292315
      GMC Envoy / Envoy XL 4.2L 2003, GM Original Equipment™ Ignition Coil Seal by ACDelco®. To protect coils from the harsh operating environment, laminations are corrosion protected, and primary and secondary coil windings often feature...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $12.77
    • (0 reviews)
      # mpn767362064
      GMC Envoy XL 5.3L 2003, GM Original Equipment™ Diesel Glow Plug Connector by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $16.47
    • (0 reviews)
      # 577962547
      GMC Envoy 2003, GM Original Equipment™ Ignition Coil Connector by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $33.62 - $43.29
    • (0 reviews)
      # mpn914877276
      GMC Envoy / Envoy XL 4.2L 2003, GM Original Equipment™ Ignition Control Module by ACDelco®. ACDelco Ignition Modules feature electronically welded lead connections to help eliminate heat-stress failure or cold joints. ACDelco Ignition...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $102.86
    • (0 reviews)
      # 577961754
      GMC Envoy 2003, GM Original Equipment™ Ignition Knock (Detonation) Sensor by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $19.57 - $42.78
    • (0 reviews)
      # mpn915023585
      GMC Envoy / Envoy XL 4.2L 2003, GM Original Equipment™ Ignition Knock (Detonation) Sensor Connector by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $26.48
    • (0 reviews)
      # mpn767361938
      GMC Envoy XL 5.3L 2003, Professional™ Ignition Relay by ACDelco®. Designed utilizing the latest technology, this product by ACDelco 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
      $6.23
    • (0 reviews)
      # 577959434
      GMC Envoy 2003, Ignition Knock (Detonation) Sensor by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your vehicle and...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $23.79 - $36.98
    • (0 reviews)
      # mpn44419394
      GMC Envoy XL 4.2L 2003, Ignition Knock (Detonation) Sensor Connector by Standard®. 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,...
      Offering hundreds of high-quality pigtails and sockets for nearly every electrical jobUtilizing high grade materials to ensure peak conductivity and perfect connections
      $38.05
    • (0 reviews)
      # mpn53634136
      GMC Envoy XL 5.3L 2003, TechSmart™ Ignition Knock (Detonation) Sensor Harness by Standard®. 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...
      Direct-fit replacement ensures ease of installationQuality-engineered replacement part for frayed or cracked knock sensor wiring harnesses
      $24.77
    • (0 reviews)
      # mpn1471233
      GMC Envoy XL 5.3L 2003, Tru-Tech™ Ignition Knock (Detonation) Sensor by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your...
      Each Knock Sensor is a direct-fit OE replacement that ensures ease of installationHigh-quality materials withstand extreme conditions
      $31.73




    Guides & Articles

    Useful articles fast to read and guides easy to understand written by mechanics and car enthusiasts to turn your shopping experience with CARiD into a pleasure

    • Performance Ignition Systems
      November 26, 2014
      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...
      by Timothy Zahl
    • Performance Engine Parts
      July 03, 2014
      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...
      by Timothy Zahl
    • Ignition Parts
      June 28, 2014
      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...
      by Timothy Zahl

    2003 GMC Envoy Performance Ignition Systems Reviews

    Average rating:  5  5 - 1 review
    5 of 5
    Richporter Ignition Coil.
    When I first received this product and I taught it is just China made only. But I was able to install it into the car. Believe me, Richporter coil now in my Hummer h2 makes my Hummer h2 back to life. I use to have slow engine start every morning and mix fire when driving the problems all solve now. I really appreciate. Thanks. Kokubo Chinatsu From Japan.
    CPosted by Chinatsu (Kashiwa City Chiba Prefecture, AA) / January 13, 2017
    2003 Hummer H2
    Was this review helpful for you? Yes

    Related 2003 GMC Envoy Pages
    2003 GMC Envoy 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.