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2003 Ignitions & Electrical
Showing In Stock Items. Show All 601 Items.
Summit Racing™ MDS Solenoid Plugs
Summit Racing™ MDS solenoid plugs are designed to plug the hole where the old MDS solenoids used to live. Commonly used when swapping MDS engines into older non-MDS cars or retro fitting non-MDS cams.
( 4 )
$40.99
Holley MAP Sensor Adapters
Holley offers MAP sensor adapters for a variety of Chevrolet LS engine applications from 1997 and up. They feature pre-terminated connectors and wiring for a direct plug-and-play installation. Depending on the model you select, the adapter will allow: * The installation of an LS3 MAP sensor in an LS2 or LS1 equipped vehicle * The installation of an MPFI WeatherPack 3-pin connector MAP sensor to the 3-pin Delphi GT connector * The installation of a Delphi MIP 3-pin connector MAP sensor to the 3-pin Delphi GT connector
( 20 )
$36.90
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$41.22
Denso Ignition Coils
Denso developed the auto industry's first compact stick-type ignition coil. The space-saving design of Denso ignition coils requires no high-tension ignition cables, fitting neatly into the engine's spark plug bore. Along with its stick coil technology, other advanced features include micro-sized driver circuits and diagonal inductive windings. That same expertise is put to use on all Denso ignition coils regardless of their configuration. Each Denso ignition coil is designed and optimized for its specific application, then continually improved by Denso's global engineering team. One key to effective combustion in today's low-emission, high-efficiency engines is consistent, high-energy ignition output. Denso direct ignition coils deliver it. Additional features and benefits of Denso ignition coils include: * Integrated driving circuit in the top of the coil * Superior-quality components and materials ensure optimal performance * Tested and inspected to ensure high quality * Diagonal windings eliminate sectioned bobbins, reducing size and weight * Improved coil efficiency lessens the need to generate high voltage * Eliminates phantom misfires * Small in size, light in weight, and easy to install * Provides maximum available voltage under all operating conditions
( 95 )
$26.50
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$49.99
ACDelco Replacement Throttle Position Sensors
ACDelco throttle position sensors electronically inform the powertrain control module (PCM) of the throttle valve angle. The PCM uses this input to regulate your fuel and ignition systems. These replacement sensors are available in dozens of models for fitment on thousands of vehicles spanning a half-century. For the proper fit and performance, order the ACDelco throttle position sensor recommended for your application.
( 21 )
$46.99
Summit Racing™ Ford Mod Motor Coil-On-Plug Ignition Coils
Your Ford is built to eat asphalt and clear its pipes with compacts. Summit Racing™ Ford Mod Motor coil-on-plug ignition coils are engineered to fuel the powerful combustion needed to unleash its inner potential. We use pure copper wire, rare earth magnets, and a custom primary and secondary wind, to provide 40 percent more voltage and 20 percent more energy (mj) from a stock-sized coil housing. They fit in the stock location, making changing these coils as easy as possible. If you're running at increased PSI with a supercharger, turbocharger, nitrous, or are burning E85, you need the hottest and strongest spark possible to burn your fuel. With the increased voltage and energy output values, your cylinders will get the spark they need to maximize fuel burn! These ignition coils are available in a variety of power options; order the model recommended for your vehicle.
( 62 )
$24.99
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$25.99
Delphi Camshaft Position Sensors
These Delphi camshaft position sensors feature a digital output design for maximum signal to noise ratio. They are not impacted by temperature changes and provide long-lasting sensor protection. These Delphi camshaft position sensors are also manufactured to meet or exceed OE requirements to ensure quality and long-lasting durability.
( 13 )
$21.99
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$48.99
ACCEL Performance Spark Plugs
ACCEL performance spark plugs produce a larger spark for more power at high rpms. They improve throttle response and fuel economy and reduce fouling. Their purified Alumina insulator prevents arcing, and their machine-rolled threads protect heads.
( 290 )
$30.57
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$33.62
ACDelco GM Genuine Parts Engine Coolant Temperature Sensors
ACDelco GM Genuine Parts engine coolant sensors are a GM recommended replacement component for many vehicles on the road today. These original equipment engine coolant sensors are manufactured to fit your GM vehicle, providing you the same performance, durability, and service life you expect from General Motors.
( 72 )
$23.99
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$30.99
Summit Racing™ Distributor Hold-Down Clamps
Since you're installing that new distributor, you'll need Summit Racing™ hold down clamps. Dress up your engine compartment while securing your distributor. Made from top-quality materials, they're the perfect way to dress up your engine compartment.
( 106 )
$28.99
Dorman Engine Oil Pressure Sensors
Try Dorman engine oil pressure sensors for accurate engine oil pressure readings. These replacement sensors will help you to protect your vehicle from being driven at low oil pressure, to avoid costly engine repairs and help maintain performance.
( 10 )
$38.99
Delphi Ignition Coils
Delphi ignition coils will definitely spark a response! Precise spark timing offers increased fuel economy and faster crank-to-run. These coils provide accurate electrical energy to create a voltage potential at the spark plug—and that provides you with superior engine performance, better control over emissions, and fuel economy. You'll get the OE performance, durability, and electromagnetic capacity level that your vehicle requires with Delphi ignition coils. Order the model designed for your vehicle application.
( 80 )
$20.99
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$47.99
Summit Racing™ MAP Sensor Adapters
Summit Racing™ MAP sensor adapters enable you to use a Holley LS2 harness with LS3 engines. These adapters feature pre-terminated connectors and wiring for a direct plug-and-play installation.
( 4 )
$28.99
Denso Oxygen Sensors
Oxygen sensors, also known as Lambda sensors or O2 sensors, are among the most sensitive and critical components on your car's engine. They monitor the air/fuel mixture under idle, moderate acceleration, and cruise conditions. Oxygen sensors have a smaller range of limits in detecting and adjusting the difference from an optimum air/fuel ratio than the newer wide range air/fuel sensors (A/F sensors). Today's engines may use as many as four oxygen sensors to monitor exhaust gas oxygen content and catalytic converter efficiency. In order to perform these functions properly, Denso oxygen sensors adhere to strict OE standards within incredibly close tolerances. A malfunctioning or incorrectly calibrated oxygen sensor can hurt drivability and illuminate the check engine light, resulting in costly and time-consuming repairs. Denso First Time Fit oxygen sensors are designed to meet those tolerances and more. Key features and benefits of Denso Oxygen Sensors include: * Robotic laser welds * Porous PTFE filters block efficiency-robbing contaminants * Double-protection covers maintain proper temperature for quicker response times and protect ceramic elements from silicone and lead fouling * Rugged, watertight stainless steel housings resist corrosion and contamination * Aluminum oxide trap layers keep silicone and lead out, preventing damage to the platinum electrode * Refined zirconia elements improves sensor response * Superior design maximizes engine performance while reducing fuel consumption and harmful emissions * First Time Fit design delivers the right part the first time
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$23.50
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$49.99
ICT Billet MAP Harness Extensions
ICT Billet MAP harness extensions are ideal for use on many Chevrolet LS-based engines from 1997 and up. They're made with OEM tooling, connectors, lock seals, and terminals—and utilize factory harness wire colors. Don't chance a poorly running engine due to cheap wire connectors; choose the quality of ICT Billet MAP harness extensions.
( 4 )
$43.99
Summit Racing™ Remote Mount LS Ignition Coil Relocation Brackets
Relocate your coil pack to a more open or out of the way area of the engine bay with Summit Racing™ remote mount LS ignition coil relocation brackets. Our kits include bolts and spacers, along with robust powdercoated steel brackets to securely mount your coil packs with a clean, professional look.
Not Yet Reviewed
$43.99
ACDelco GM Genuine Parts Oxygen Sensors
ACDelco GM Genuine Parts oxygen (O2) sensors are special feedback sensors on your vehicle's exhaust system and are GM-recommended replacements for your vehicle's original components. They measure the proportion of oxygen in exhaust gases, then using the measurement, the engine control module (ECM) can adjust the air/fuel ratio to near the optimal value of 14.7:1. At this ratio, engine performance, emissions, and fuel economy are all optimized. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Choose the O2 sensor designed for your vehicle.
( 104 )
$37.99
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$41.99
Dinan Ignition Coils
Dinan ignition coils are designed to be direct plug-and-play replacements, or upgrades, to factory coils and provide greater energy output. With up to 10 percent more energy output than stock, the coils ensured a stronger and more consistent spark. Whether you are replacing dilapidated coils that are causing sluggish acceleration and/or misfires or simply upgrading for a more reliable and consistent spark, your ignition system will be more efficient with a new set of Dinan coils. They are available in several styles. For those that like to showcase engine modifications, Dinan coils come in a variety of unique housing colors with the Dinan logo for the perfect personalized touch.
( 10 )
$32.75
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$33.77
Bosch Premium Original Equipment-Type Oxygen Sensors
Save the environment and gasoline dollars. Tune-up with Bosch premium original equipment-type oxygen sensors for lower emissions and greater fuel economy. Properly functioning oxygen sensors are important when it comes to your vehicle's fuel economy and reducing harmful exhaust emissions. That's why checking for and replacing a worn-out oxygen sensor with one of these Bosch sensors is an important part of every routine tune-up. These O2 sensors feature an OEM connector for ease of installation. Bosch invented the automotive oxygen sensor and is the top choice of carmakers around the world. Order the model designed for fitment with your vehicle.
( 178 )
$39.99
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$48.99
Dorman Knock Sensor Wiring Harnesses
Dorman knock sensor wiring harnesses play a dual role in helping to monitor and protect your engine. They're manufactured from quality materials to ensure years of trouble-free performance. These OEM replacements are available for nearly 2,000 applications from the '90s and up.
( 26 )
$28.99
Motorcraft Starter Solenoids
When your engine refuses to turn over, it could be time for one of these Motorcraft replacement starter solenoids. Made to fit, they plug directly into the starter circuit and are designed to activate your motor, push the starter Bendix gear into the ring gear, and deliver quality performance. Motorcraft starter solenoids offer the best fit for your Ford, Mercury, and Lincoln vehicles.
( 40 )
$26.99
Top Street Performance Premium Spark Plug Wire Sets
Top Street Performance premium ignition wires deliver superior performance and durability in various color themes to match your engine bay. Their spiral-wound core suppresses RFI (radio-frequency interference) and features excellent ohm-per-foot resistance. Around the core is a braid that provides superior pull strength, and the outer jacket is composed of premium high-density material with a high-temperature rating and a quality finish to resist damage from water and chemicals. Top Street Performance delivers quality performance with the premium spark plug wire sets designed and styled for your application.
( 5 )
$32.08
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$37.04
CVR Distributor Hold-Down Brackets
Keep your distributor from twisting at high rpm with CVR distributor hold-down brackets! These brackets are offered in a choice of anodized finishes and include a stainless mounting stud, nut, and washer. CVR distributor hold-down brackets feature a slotted bolt hole for easy distributor removal.
( 22 )
$32.99
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$38.99
Summit Racing™ Distributor Cap and Rotor Kits
Simplify your tune-ups and keep them budget-friendly with our Summit Racing™ cap and rotor kits. These affordable kits are molded from premium materials and have brass or aluminum inserts depending on application.
( 380 )
$31.99
Summit Racing™ LS Ignition Coil Wiring Harness Extensions
Summit Racing™ LS ignition coil wiring harness extensions are assembled with OEM tooling, connectors, locks, seals, and terminals. They utilize factory harness wire colors. Compatible with any GM LS engine, these extensions are great for remote locating coils under the engine for a custom look. Don't take a chance with cheap wire connectors that use poor-quality components and have conductivity issues. Order the harness length needed for your application.
( 1 )
$26.99
