1978 GMC Suburban Light Relays, Sensors, Control Modules
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WVE®Headlight RelayGMC C15 Suburban / C25 Suburban 1978, Headlight Relay by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality....Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$8.82 - Dorman®Conduct-Tite™ Headlight ConnectorGMC Suburban 1978, Conduct-Tite™ Headlight Connector by Dorman®. With 3 Wires. With insulation that’s as secure as it is durable, Dorman’s Pigtail Headlight Connector prevents the corrosion, overheating, and melting that commonly...Direct replacement for ease of installationSave time and expense by replacing only the connector, not the entire harness$1.98
- ACDelco®Professional™ Headlight Dimmer Switch ConnectorGMC Suburban 1978, Professional™ Headlight Dimmer Switch Connector by ACDelco®. Finish: Black. Looking to maintain the top condition of your electrical system? We are ready to help you! Just choose from their immense selection of...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$7.74 - $32.90Save: 15%$6.58 - $27.96
- ACDelco®Professional™ Headlight Switch ConnectorGMC Suburban 1978, Professional™ Headlight Switch Connector by ACDelco®. Finish: Black.$32.90Save: $4.94 (15%)$27.96
- ACDelco®Professional™ Tail Light SocketGMC Suburban 1978, Professional™ Tail Light Socket by ACDelco®. With Recessed Insert. Finish: White. Length: 39.8mm. Socket Type: Straight. Looking to maintain the top condition of your electrical system? We are ready to help you!...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$14.50Save: $2.17 (15%)$12.33
- Dorman®Conduct-Tite™ High Temperature Headlight Standard SocketGMC Suburban With High Temperature Socket 1978, Conduct-Tite™ High Temperature Headlight Standard Socket by Dorman®. Length: 7" with Wire (1" Without Wire). Make better electrical repairs and accessory installations with this pigtail...Professional appearance - this electrical pigtail is designed for a clean, professional look when installedConvenient solution - this pigtail connector allows the circuit to be quickly disconnected for service or occasional use$8.87
- Dorman®TECHoice™ Headlight Switch Light SocketGMC Suburban 1978, TECHoice™ Headlight Switch Light Socket by Dorman®. Engagement of the four-wheel drive system is crucial during slick weather conditions. Dorman provides you with the security of knowing that your switch will...Easy installation; just plug it in to the mating componentDirect replacement matches original design$8.62
- Standard®Back Up Light SocketGMC C15 Suburban 1978, Back Up Light Socket by Standard®. Straight. Finish: Black/Green. Harness Length: 17". Wire Quantity: 2. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest...Offering hundreds of high-quality pigtails and sockets for nearly every electrical jobUtilizing high grade materials to ensure peak conductivity and perfect connections$7.69
- Standard®Brake Light RelayGMC Suburban 1978, Brake Light Relay by Standard®. Finish: Silver. Voltage: 12 V. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the...High quality composite housings protect against harsh temperatures and severe under hood conditionsFeaturing brass or copper contacts where specified for extended wear$58.11
- Standard®Emergency Vehicle Lamp RelayGMC Suburban 1978, Emergency Vehicle Lamp Relay by Standard®. Amperage: 200 Amp. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the...Standard starter solenoids contain heavy-duty copper contacts that reduce the effect of arcing and extend solenoid lifeStandard starter solenoids have more pure copper windings than found on most vehicles to create a stronger magnetic field$125.49
- Standard®Emergency Vehicle Light RelayGMC Suburban 1978, Emergency Vehicle Light Relay by Standard®. Amperage: 75 Amp. Looking to maintain the top condition of your electrical system? They are ready to help you! Just choose from their immense selection of premium...Designed to help restore the performance of your electrical systemMade from high-grade materials using the latest techniques$47.06
- Standard®Flasher ConnectorGMC Suburban 1978, Flasher Connector by Standard®. Finish: Red. Harness Length: 18". Wire Quantity: 2. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive...Offering hundreds of high-quality pigtails and sockets for nearly every electrical jobUtilizing high grade materials to ensure peak conductivity and perfect connections$23.54
- Standard®Handypack™ Dimmer Switch ConnectorGMC C15 Suburban / C25 Suburban / K15 Suburban / K25... 1978, Handypack™ Dimmer Switch Connector by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products,...Premium parts you can rely onDesigned to restore functionality$3.37 - $15.11
- Standard®Hazard Warning RelayGMC Suburban 1978, Hazard Warning Relay by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity...Premium parts you can rely onDesigned to restore functionality$20.37
- Standard®Headlight Dimmer Switch ConnectorGMC Suburban 1978, Headlight Dimmer Switch Connector by Standard®. Finish: Black. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the...Offering hundreds of high-quality pigtails and sockets for nearly every electrical jobUtilizing high grade materials to ensure peak conductivity and perfect connections$3.73 - $22.78
- Standard®Tru-Tech™ Emergency Vehicle Lamp RelayGMC Suburban 1978, Tru-Tech™ Emergency Vehicle Lamp Relay by Standard®. With 4 Threaded Studs. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive...Standard T-Series solenoids feature copper windings for a strong magnetic field to ensure reliable operationHigh quality terminal studs eliminate stripping and provide full power delivery to ensure that all Standard T-Series starter solenoids perform like the original$17.31
- Standard®Turn Signal Switch ConnectorGMC Suburban 1978, Turn Signal Switch Connector by Standard®. Finish: Black. Harness Length: 8". Wire Quantity: 10. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality...Premium parts you can rely onDesigned to restore functionality$84.95
- WVE®Headlight Switch ConnectorGMC Suburban 1978, Headlight Switch Connector by WVE®. L Shaped. Black Connector. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$16.68
- Diode Dynamics®Inline ResistorGMC C25 Suburban / K25 Suburban 1978, Inline Resistor by Diode Dynamics®. Quantity: 2 Pieces. This is a pair of inline resistors, designed for use with 194, 168, or 921 size bulb applications. Each resistor draws 5 watts of power, the...Designed to help restore the performance of your electrical systemMade from high-grade materials using the latest techniques$10.00
- Standard®Headlight Wiring HarnessGMC Suburban 1978, Headlight Wiring Harness by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...Premium parts you can rely onDesigned to restore functionality$24.39
- Race Sport®OEM Factory Replacement BallastOEM Factory Replacement Ballast by Race Sport®. These individual OEM HID Replacement ballasts ensure that your vehicle's lighting is always working. This product is made of high-quality materials to serve you for years to come. Designed...Single 35W OEM D4 Style HID Replacement BallastIncludes mounting hardware$64.99 - $99.99
- Diode Dynamics®HYLUX D2 HID BallastHYLUX D2 HID Ballast by Diode Dynamics®. Quantity: 1 Piece. Looking to maintain the top condition of your electrical system? They are ready to help you! Just choose from their immense selection of premium replacement electrical parts...Designed to help restore the performance of your electrical systemMade from high-grade materials using the latest techniques$100.00
- Race Sport®High Intensity Discharge Lighting BallastHigh Intensity Discharge Lighting Ballast by Race Sport®. Looking to maintain the top condition of your electrical system? They are ready to help you! Just choose from their immense selection of premium replacement electrical parts...Includes mounting hardwareDoes not include bulbs, additional wiring, or harnesses$34.99 - $44.99
- Race Sport®High Intensity Discharge Lighting BallastHigh Intensity Discharge Lighting Ballast by Race Sport®. Looking to maintain the top condition of your electrical system? They are ready to help you! Just choose from their immense selection of premium replacement electrical parts...Constructed of high-quality materialsRugged construction to withstand harsh conditions$6.99 - $39.99
- Painless Performance®LED FlasherLED Flasher by Painless Performance®. LED Turn Signal lights do not draw enough current to trigger most thermal flashers. The Painless LED flasher has a miniature circuit board and relay to operate the flasher to keep your LED's bright...High quality at an affordable priceExpertly made from premium materials$22.92
- Dorman®3-Wire with Fiber Optic Headlight3-Wire with Fiber Optic Headlight by Dorman®. Dorman offers a comprehensive line of Headlight Switch Connectors for a wide range of applications. All the Headlight Switch Connectors are constructed of high-quality materials for...Direct replacement Headlight Switch Connectors available to ensure a proper fitVehicle try-on testing has been conducted on this part to ensure a trouble-free performance$7.04
- Dorman®Conduct-Tite™ Relay (4 Pin, 30 Amp, 12 Volt)Conduct-Tite™ Relay (4 Pin, 30 Amp, 12 Volt) by Dorman®. Amperage: 30 Amp. Voltage: 12V. Terminal Gender: Male, Terminal Material: Plastic, Terminal Type: Blade, Wire Gauge: Not Applicable. Dorman offers a comprehensive line of Relay...Reduces voltage drops and helps maintain optimum operating currentAvailable for both 4- and 5-pin connections$5.40
- Dorman®Conduct-Tite™ Tower Housing Technician TerminalConduct-Tite™ Tower Housing Technician Terminal by Dorman®. Material: Plastic. Dorman offers a comprehensive line of Weather Pack Series Connectors for almost any automotive electrical repair. All Dorman's Weather Pack Series...Available in many different styles including PVC and weatherproofA large selection of wire gauges available$1.99 - $2.06
- Dorman®Conduct-Tite™ Wire Contact SocketConduct-Tite™ Wire Contact Socket by Dorman®. Dorman offers a comprehensive line of Lighting Socket for a wide range of applications. All Dorman's Lighting Socket are constructed of high-quality materials for long-lasting durability....Designed to help restore the performance of your electrical systemMade from high-grade materials using the latest techniques$1.96 - $13.13
- Standard®Handypack™ Contact Light SocketHandypack™ Contact Light Socket by Standard®. Standard 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...The handypack™ program is the most complete wiring center. Featuring application and non-application electrical products, handypack™ has the products and tools needed to get your electrical job done rightPigtail and Socket Assembly$2.02 - $3.98
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1978 GMC Suburban Models
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