1978 Buick Riviera A/C Relays, Sensors & Switches
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Four Seasons®System Mounted Low Cut-Out Pressure SwitchBuick Riviera 1978, System Mounted Low Cut-Out Pressure Switch by Four Seasons®. With Round Connector Shape. Location: To Compressor. Type: 2 Terminals. Finish: Black/Green. Products are engineered and tested to provide years of trouble...Contains gaskets, o-rings, or seals to properly replace the productColor coded for easy identification$27.77 - UAC®HVAC Pressure SwitchBuick Riviera 1978, HVAC Pressure Switch by UAC®. System Mounted LPCO. UAC’s line of electrical components includes the Switches and Relays that are necessary for the proper function of an A/C System. They are produced at top tier...Helps maintain a desired temperature inside your carMade of durable materials$7.04
- Four Seasons®A/C Clutch Cycle SwitchBuick Riviera 1978, A/C Clutch Cycle Switch by Four Seasons®. Finish: Black. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix it right...Contains gaskets, o-rings, or seals to properly replace the productPrecision engineered$23.64
- Four Seasons®HVAC Pressure SwitchBuick Riviera 1978, HVAC Pressure Switch by Four Seasons®. Type: 2 Terminals. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it once and fix it right...Premium parts you can rely onDesigned to keep your A/C system in top shape$19.44 - $31.38
- Four Seasons®A/C Compressor Cut-Out SwitchBuick Riviera 1978, A/C Compressor Cut-Out Switch by Four Seasons®. High Pressure Compressor Mounted. Without Connector. Type: 2 Terminals. Finish: Blue. Products are engineered and tested to provide years of trouble free operation....Contains gaskets, o-rings, or seals to properly replace the productColor coded for easy identification$17.12
- gpd®A/C Clutch Cycle SwitchBuick Riviera 1978, A/C Clutch Cycle Switch by gpd®. Location: Accumulator Mounted. The electrical switch is designed to give feedback to the engine management system. The ECM controls the A/C system on modern vehicles. In earlier...Designed to meet/exceed OE fit, form and functionDurability tested on every new design$9.13
- Standard®HVAC Blower Control SwitchBuick Riviera without A/C 1978, HVAC Blower Control Switch by Standard®. Front. Type: 4 Blade Male Terminal. Number Of Switch Positions: 4. Standard is to be the leading independent supplier to the automotive aftermarket, providing the...Standard switches are designed using copper alloy conductors to ensure superior electrical conductivity with low resistive lossesStandard parts are 100% tested to verify both mechanical and electrical switching performance$18.89
- Four Seasons®A/C Compressor Cut-Out Switch Harness ConnectorBuick Riviera 1978, A/C Compressor Cut-Out Switch Harness Connector by Four Seasons®. With Round Connector Shape. Type: 2 Terminals. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years...OE style connectorsMolded plastic construction$8.46 - $14.07
- Four Seasons®A/C Compressor Wiring HarnessBuick Riviera with A6 Compressor / with R4 Compressor 1978, A/C Compressor Wiring Harness by Four Seasons®. With 2 Spade Rectangle Connector. Type: 2 Terminals. Products are engineered and tested to provide years of trouble free...OE style connectorsMolded plastic construction$8.89
- Four Seasons®Harness Connector AdapterBuick Riviera with A6 Compressor / with R4 Compressor 1978, Harness Connector Adapter by Four Seasons®. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix...Precision moldedOE style connectors$9.42 - $10.31
- gpd®A/C Compressor Cut-Out SwitchBuick Riviera 1978, A/C Compressor Cut-Out Switch by gpd®. Low Pressure. The electrical switch is designed to give feedback to the engine management system. The ECM controls the A/C system on modern vehicles. In earlier vehicles, they...Designed to meet/exceed OE fit, form and functionDurability tested on every new design$14.25
- gpd®A/C Thermo SwitchBuick Riviera 1978, A/C Thermo Switch by gpd®. The electrical switch is designed to give feedback to the engine management system. The ECM controls the A/C system on modern vehicles. In earlier vehicles, they are used to directly turn...Designed to meet/exceed OE fit, form and functionDurability tested on every new design$19.43
- Standard®A/C Compressor Control RelayBuick Riviera 1978, A/C Compressor Control Relay by Standard®. With Bracket. Type: 5 Blade Male Terminal. Amperage Rating: 30 A. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest...High quality composite housings protect against harsh temperatures and severe under hood conditionsFeaturing brass or copper contacts where specified for extended wear$31.84
- Standard®HVAC Blower Motor ConnectorBuick Riviera 1978, HVAC Blower Motor Connector by Standard®. Type: 4 Blade Female Terminal. Finish: Black. Wire Quantity: 4. Harness Length: 6 1/2". Standard is to be the leading independent supplier to the automotive aftermarket,...Offering hundreds of high-quality pigtails and sockets for nearly every electrical jobUtilizing high grade materials to ensure peak conductivity and perfect connections$19.55
- Four Seasons®HVAC Blower Motor Cut-Out RelayBuick Riviera 1978, HVAC Blower Motor Cut-Out Relay by Four Seasons®. Isolated Coil. Type: 5 Terminals. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix...Precision engineeredOE style molded connectors$30.80
- Four Seasons®HVAC Blower Motor Resistor HarnessBuick Riviera with A/C 1978, HVAC Blower Motor Resistor Harness by Four Seasons®. Type: 4 Terminals. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile A/C experience, fix it...Molded plastic constructionOE style connectors$8.88
- Four Seasons®HVAC Blower Relay Harness ConnectorBuick Riviera 1978, HVAC Blower Relay Harness Connector by Four Seasons®. With 3 Hole Mounting Bracket. Type: 5 Terminals. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile...OE style connectorsMolded plastic construction$15.30
- ACDelco®Gold™ A/C Compressor ConnectorBuick Riviera 1978, Gold™ A/C Compressor Connector by ACDelco®. High Pressure. With Round Connector Shape. Type: 2 Pressure Contact Terminal. Finish: Black. Designed utilizing the latest technology, this product by ACDelco features...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$19.72
- Standard®A/C Selector SwitchBuick Riviera 1978, A/C Selector Switch by Standard®. With Rotary. Type: 4 Blade Male Terminal. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices...Standard switches are designed using copper alloy conductors to ensure superior electrical conductivity with low resistive lossesStandard parts are 100% tested to verify both mechanical and electrical switching performance$35.08
- Standard®Handypack™ HVAC Blower Motor ConnectorBuick Riviera 1978, Handypack™ HVAC Blower Motor Connector by Standard®. Type: 4 Female Terminal. Finish: Black. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products,...The handypack™ program is the most complete wiring center with 17 assortments available. Featuring application and non-application electrical products, handypack™ has the products and tools needed to get your electrical job done right.Pigtail and Socket Assembly$17.49
- WVE®A/C Compressor Control RelayBuick Riviera 1978, A/C Compressor Control 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. Made...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$17.13 - $27.26
- WVE®A/C Compressor Switch ConnectorBuick Riviera 1978, A/C Compressor Switch Connector by WVE®. Terminal Quantity: 2. Terminal Gender: Male. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$15.32 - $20.01
- WVE®HVAC Blower Control SwitchBuick Riviera with A/C 1978, HVAC Blower Control Switch 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...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$14.75
- WVE®HVAC Blower Motor Resistor ConnectorBuick Riviera with A/C 1978, HVAC Blower Motor Resistor Connector by WVE®. With 4 Terminals. 4 Wire Harness. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$8.28
- WVE®HVAC Blower Switch ConnectorBuick Riviera with A/C 1978, HVAC Blower Switch Connector by WVE®. Black. With 4 Terminals and Female Connector. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$23.48
- gpd®HVAC Blower Motor RelayBuick Riviera 1978, HVAC Blower Motor Relay by gpd®. Always make sure electrical components are free of debri and moisture before installing. This top-grade product is expertly made in compliance with stringent industry standards to...Designed to meet/exceed OE fit, form and functionDurability tested on every new design$8.94 - $36.27
- Dorman®HVAC Blower Motor Resistor ConnectorBuick Riviera with A/C and without Automatic Temperature Control 1978, HVAC Blower Motor Resistor Connector by Dorman®. Type: Blade Female Terminal. Wire Quantity: 4. Overall Length: 5.5". Dorman’s Blower Motor Resistor promptly...Simply plugs into the blower motor resistor for ease of installationUniquely available in a kit that includes the blower motor resistor, an essential component of most repairs$8.54
- Lectric Limited®Air Conditioning RelayBuick Riviera USA Built 1978, Air Conditioning Relay by Lectric Limited®. Location: Blower Motor. Made in U.S.A.!. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a...Developed with modern technology and innovationMeticulously Tested for the ultimate in quality$36.00
- Lectric Limited®HVAC SwitchBuick Riviera 1978, HVAC Switch by Lectric Limited®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Developed with modern technology and innovationMeticulously Tested for the ultimate in quality$44.00
- United Motor Products®HVAC Blower Control Switch ConnectorBuick Riviera 1978, HVAC Blower Control Switch Connector by United Motor Products®. Black. With 4 Female Terminals. Keep your pride and joy operating as it should with this top-notch part from United Motors Products. It’s made using...Excellent replacement for your worn out factory partWill help make your vehicle running as good as new$14.33
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