Relays, Cables & Connectors

The battery, alternator, and starter may be the stars of the starting & charging system, but they would be useless without the relays, wiring and connectors that complete the system and conduct the current necessary for operation. And quite often it’s a bad starter relay, frayed or broken wire, or corroded connector that’s the cause of a dead battery or no-start, not a main component. But major or minor, we have the parts to get your vehicle functioning again.

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    • (0 reviews)
      # sp112135
      Professional™ Starter 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 lifestyle, it is manufactured to...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $12.41 - $28.73
    • (0 reviews)
      # sp21183
      Starter Relay by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $16.92 - $27.81
    • (0 reviews)
      # sp115239
      Battery Temperature Sensor by Mopar®. Designed utilizing the latest technology, this product by Mopar features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet...
      Premium parts you can rely onDesigned to restore functionality
      $13.38 - $42.60
    • (0 reviews)
      # sp10709
      GM Original Equipment™ Battery Saver 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 lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $13.58
    • (0 reviews)
      # sp120932
      GM Original Equipment™ Starter 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 lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $3.64 - $52.73
    • (0 reviews)
      # sp113436
      Starter Relay by Denso®. Starter Relay will perfectly meet your expectations and enhance your life with Denso accessories. Designed utilizing the latest technology, this product by Denso features premium quality and will perform better...
      Great priceEasy installation
      $15.29 - $21.73
    • (0 reviews)
      # sp150944
      Starter Relay by Bosch®. Do you hear nothing but "click, click" when you turn the key? Is the BATTERY dash light on? Your vehicle is in need of engine electrical system repair, but before you waste your time and gas running out to the...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $7.31 - $12.06
    • (0 reviews)
      # sp97944
      Battery Power Distribution Box 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 reputation for integrity to...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $32.22 - $41.25
    • (0 reviews)
      # sp16864
      Battery Temperature Sensor 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 reputation for integrity to all...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $18.78 - $55.67
    • (0 reviews)
      # sp16865
      Dual Battery Solenoid 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 reputation for integrity to all...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $31.86 - $32.45
    • (0 reviews)
      # mpn53657230
      Intermotor™ Auxiliary Battery 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 reputation for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $89.82
    • (0 reviews)
      # sp16870
      Intermotor™ Battery Charge 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 reputation for integrity...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $26.29
    • (0 reviews)
      # mpn53654365
      Intermotor™ Battery Current Sensor 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 reputation for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $83.49
    • (0 reviews)
      # sp27776
      Starter 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 reputation for integrity to all channels of...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $7.50 - $28.67
    • (0 reviews)
      # sp126486
      TechSmart™ Battery Current Sensor 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 reputation for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $13.96 - $22.33
    • (0 reviews)
      # sp13031
      Tru-Tech™ Auxiliary Battery 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 reputation for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $26.99 - $50.52
    • (1 review)
      # sp135522
      Starter Relay by Genuine®. If your starting and charging system parts are in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain store. At...
      Designed to restore your vehicle’s starting and charging systemGenuine OE replacement parts from the OE manufacturer
      $7.92 - $81.40
    • (0 reviews)
      # mpn4493904378
      Starter Relay by Hella®. Do you hear nothing but “click, click” when you turn the key? Is the BATTERY dash light on? Your vehicle is in need of engine electrical system repair, but before you waste your time and gas running out to...
      Designed to help bring your vehicle back in its tip-top conditionFaithful reproduction of the original part in quality, look, and function
      $5.97
    • (0 reviews)
      # sp136291
      Starter Relay by Mopar®. Designed utilizing the latest technology, this product by Mopar features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed...
      Premium parts you can rely onDesigned to restore functionality
      $14.39 - $20.87
    • (0 reviews)
      # sp21177
      Starter Relay by Omix-Ada®. The starter is an electric motor that turns the crankshaft during the engine starting process. When the ignition key is turned, power goes to the starter solenoid, causing the starter drive to engage the...
      Performs according to OEM specificationsMeets or exceeds OEM quality standards
      $14.89
    • (0 reviews)
      # mpn1567555891
      Dual Battery Relay by Rugged Ridge®. The Jeep is the original high performance off-road machine, built to perform under the most grueling conditions. But even though it's a capable machine right from the factory, performance parts from...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $199.99
    • (0 reviews)
      # sp21182
      Starter Relay by Wehrle®. When you need a headlight bulb or a stop light switch, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas only to find high prices and poor...
      OE quality fluids from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $4.13 - $27.46
    • (0 reviews)
      # sp21180
      Starter Relay by OER®. Replacement starter relay. This relay mounts on the inner fender well near the battery. Pre-packaged in box. Designed utilizing the latest technology, this product by OER features premium quality and will perform...
      Factory original quality for lessDirect fit replacement
      $15.28 - $33.37
    • (0 reviews)
      # sp150979
      Starter Relay by Vemo®. Designed utilizing the latest technology, this product by Vemo features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $9.56 - $16.69
    • (0 reviews)
      # sp102787
      Starter Relay Kit by Forecast®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at...
      High quality at an affordable priceExpertly made from premium materials
      $26.71
    • (0 reviews)
      # sp115256
      Starter Relay by Santech®. Designed utilizing the latest technology, this product by Santech features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed...
      High quality at an affordable priceExpertly made from premium materials
      $8.50 - $14.49
    • (0 reviews)
      # sp10761
      Professional™ Alternator 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 and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $2.68 - $30.07
    • (0 reviews)
      # sp26421
      Starter Clutch Internal Switch by Motorcraft®. Motorcraft starter clutch internal switch is designed for maximum performance and durability. Designed utilizing the latest technology, this product by Motorcraft features premium quality...
      Direct OEM replacementMeets strict Ford Motor Company standards
      $13.45 - $62.77
    • (0 reviews)
      # sp120938
      Alternator Extension Harness by Dorman®. Dorman offers a line of Alternator Extender Harnesses for a wide range of applications. All Alternator Extender Harnesses are constructed of high-quality materials for long-lasting durability.
      Suitable for 2-wire configurationsEasy installation - splice in the new socket to your existing wiring
      $2.34 - $3.28
    • (0 reviews)
      # sp135531
      Auxiliary Battery Relay 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 reputation for integrity...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $34.39 - $43.82




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    The starter relay allows low current and lighter gauge wire to control the high current needed to operate the starter motor, avoiding the danger and complexity of routing high current carrying, heavy gauge wire to the ignition switch. The battery cables and all the wiring and connectors in the starting & charging system must be of the proper gauge, and the integrity of the wire and condition of the terminals must be sufficient to conduct the required current.

    The starter relay is part of the starter control circuit. It can be controlled by the ignition switch or through the Powertrain Control Module (PCM). In an ignition switch controlled relay, when the switch is turned to the START position, current is applied to the relay coil, creating a magnetic field that closes the power circuit contacts and sends voltage to the starter solenoid. Controlling the relay with the PCM allows anti-theft overrides to be employed if the wrong ignition key is used. If the starter relay is suspected as the cause for a no-start, voltage tests can be used to determine relay condition.

    Due to the large current demands of the starter motor, the battery cables are the heaviest gauge wires in a vehicle’s electrical system, typically ranging from 6 to 4/0 gauge. They are constructed from stranded copper wire encased in an insulated covering. The positive battery cable is connected to the positive battery terminal and starter solenoid. The negative cable is connected to the negative terminal and the chassis or engine block. A cable that is cut or frayed will have high resistance and may not be able to conduct the current needed to start the engine. The location of high resistance can be found with a voltage drop test.

    Corrosion and damaged terminals are another cause of excessive circuit resistance. While battery cable terminals can often be cleaned, it is usually difficult or impossible to clean and repair the small, delicate contacts in alternator, voltage regulator, and other electrical connectors in the starting & charging system. We offer original equipment style replacement connectors complete with wires, commonly known as “pigtails”, which can easily be spliced into the harness. Our battery cables and starter relays are also configured for direct fit, and we carry other system needs like battery sensors and terminal protectors.

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    Relays, Sensors & Cables Reviews

    Average rating:  5  5 - 4 reviews
    4.8 of 5
    Relay For Jeep Grand Cherokee
    Product has schematic of components printed on the outside.
    Posted by Delmer Steinberg (Bremerton, WA) / October 7, 20161996 Jeep Grand Cherokee
    Was this review helpful for you? Yes
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