1978 Mercedes SL Class Electrical Parts
- Light Switches
- Light Relays + Sensors
- Fuses
- Electrical Wiring, Cables & Connectors
- Replacement Gauges
- Power + Heated Seats
- Cruise Control
- Horns
- Door Lock Actuators + Switches
- Window Motors + Switches
- Alternators
- Starters
- Batteries
- Voltage Regulators
- A/C Relays, Sensors
- Fuel Sensors & Switches
- Cooling System Switches, Sensors & Relays
- Engine Sensors, Relays, Switches & Connectors
- Transmission Solenoids, Sensors, Switches & Control Units
- Brake System Sensors
-
DIY Solutions®Door Window SwitchMercedes 450SL 1978, Door Window Switch by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look out for. When it comes to...Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again$87.20 - $163.31$95.83 - $179.47Save 9% - Santech®HVAC Pressure SwitchMercedes SL Class 1978, HVAC Pressure Switch by Santech®. Make your beloved vehicle perform reliably, efficiently, and smoothly again with this top-grade A/C component from Santech. Designed to fit, form, and function just like the OEM,...Premium parts you can rely onDesigned to keep your A/C system in top shape$11.06 - $17.81
- Vision-OE®Remanufactured AlternatorMercedes SL Class 4.5L 1978, Remanufactured Alternator by Vision-OE®. Current: 55 Amp. With 1 V-Groove Pulley. Pulley Size: 67 mm. External Fan. Plug Position: 9:00 O'Clock. Voltage Regulator: Internal. Rotation: Clockwise. Voltage:...Developed with modern technology and innovationMeticulously Tested for the ultimate in quality$174.63
- Standard®Intermotor™ Voltage RegulatorMercedes 450SL / 450SLC 1978, Intermotor™ Voltage Regulator by Standard®. Alternator Equipped. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$49.64
- Genuine®Front Window SwitchMercedes SL Class 1978, Front Window Switch by Genuine®. This superior power window switch is painstakingly designed to provide outstanding quality and value. Expertly crafted from first-rate materials to the highest standards it...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$91.37 - $120.42
- Beck Arnley®Front Brake Pad Electronic Wear SensorMercedes 450SL / 450SLC 1978, Front Brake Pad Electronic Wear Sensor by Beck Arnley®. Standard. When investing in this superior product by Beck Arnley, expect to get the exact OEM look, function, and fit. The product was developed to...Perfect fit and function is guaranteedMade from the same gauge material as your original part$2.11
- Standard®Intermotor™ Cooling Fan Temperature SwitchMercedes SL Class 4.5L 1978, Intermotor™ Cooling Fan Temperature Switch by Standard®. Terminal Quantity: 1. Connector Gender: Male. Terminal Type: Pin, Bullet. Standard is to be the leading independent supplier to the automotive...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$33.50
- Bosch®Voltage RegulatorMercedes SL Class 1978, Voltage Regulator by Bosch®. Efficiency and quality are the key characteristics of multi-function regulators designed to protect vehicle electronic systems. This unique Bosch invention is not only responsible for...OE quality parts from top original equipment and aftermarket manufacturersReliable engine starting$57.59 - $70.88
- Genuine®Front Passenger Side Door Jamb SwitchMercedes 450SL 1978, Front Passenger Side Door Jamb Switch by Genuine®. Round with 2 Pole Terminals. If your electrical parts are in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand...Designed to restore your vehicle’s electrical systemGenuine OE replacement parts from the OE manufacturer$87.12
- Standard®Intermotor™ Front Disc Brake Pad Wear SensorMercedes 450SL / 450SLC 1978, Intermotor™ Front Disc Brake Pad Wear Sensor by Standard®. Mounting Location: Brake Caliper. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality...High quality at an affordable priceExpertly made from premium materials$4.57
- iD Select®Front Brake Pad Electronic Wear SensorMercedes 450SL / 450SLC with D145 Brake Pads 1978, Front Brake Pad Electronic Wear Sensor by iD Select®. We know shopping for auto parts can be overwhelming, often requiring more time than you’ve got to figure out which items hit the...Direct OEM replacement for your malfunctioning brake partMade to deliver the ultimate in quality, reliability, and value$2.74
- Carlson®Front Brake Pad Electronic Wear SensorMercedes 450SL / 450SLC with D145 Brake Pads 1978, Front Brake Pad Electronic Wear Sensor by Carlson®. The pad wear sensor will illuminate the brake light on the dash, alerting you that brake pad replacement is required, and allowing...Senses when brake pads wear outOE fit and function$4.77
- EBC®Front Replacement Wear IndicatorMercedes 450SL / 450SLC 1978, Front Replacement Wear Indicator by EBC®. Quantity: 1 per Pack. This is one replacement electronic wear sensor needed when installing new brake pads on vehicles so equipped. Get the fit and lasting quality...Sensor that is triggered by contact with brake rotor upon significant brake pad wearEach sensor includes attached cable that connects to vehicle$10.87
- WAI Global®AlternatorMercedes SL Class 4.5L with Bosch Alternator 1978, Alternator by WAI Global®. Current: 55 Amp. With 1 Groove Pulley. Rotation: Clockwise. Voltage: 12V. Is the performance of your vehicle affected by the power outage? It may be time to...Elaborately designed to provide just enough powerIdentical in specifications to the factory alternator$104.03
- Four Seasons®Temperature SwitchMercedes SL Class 4.5L 1978, Temperature Switch by Four Seasons®. Terminal Quantity: 1. Connector Gender: Male. All products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of car parts...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$36.23
- Four Seasons®Harness Connector AdapterMercedes SL Class 4.5L with A6 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 it once and...Precision moldedOE style connectors$9.42 - $10.31
- Dansk®Front Passenger Side Window MotorMercedes 450SL / 450SLC 1978, Front Passenger Side Window Motor by Dansk®. Tooth Gear: 8. This top-grade power window motor is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and...Premium parts you can rely onDesigned to restore functionality$151.78
- Standard®Intermotor™ Fuel Pump Cut-Off SwitchMercedes SL Class 4.5L with Electric Fuel Pump 1978, Intermotor™ Fuel Pump Cut-Off Switch by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products,...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$66.17
- Standard®Intermotor™ Starter DriveMercedes SL Class 1978, Intermotor™ Starter Drive 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$24.33 - $39.96
- Standard®Intermotor™ Starter SolenoidMercedes SL Class 4.5L 1978, Intermotor™ Starter Solenoid by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$74.17
- Standard®Intermotor™ Alternator Brush SetMercedes 450SL / 450SLC 1978, Intermotor™ Alternator Brush Set by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$6.35
- Beru®Voltage RegulatorMercedes 450SL / 450SLC To Engine # 041121-046865 1978, Voltage Regulator by Beru®. A voltage regulator is one of the vehicle components responsible for ensuring that your battery is recharged safely and electrical components get the...Expertly built according to stringent OEM specificationsMade to enable as safe battery recharging as possible$40.30
- URO Parts®RPM Control RelayMercedes SL Class 1978, RPM Control Relay by URO Parts®. Replace your inefficient cooling part that may lead to the cooling system breakdown with this premium component that will keep your engine cool and safe. Designed to meet or even...Designed to replace your worn out factory cooling partOptimizes engine cooling performance$62.89
- ACDelco®Gold™ Front Disc Brake Pad Wear SensorMercedes 450SL / 450SLC 1978, Gold™ Front Disc Brake Pad Wear Sensor by ACDelco®. ACDelco Gold™ Bonded Brake Shoes are high-quality replacements for worn factory brakes. Chamfered, slotted and shimmed, they are designed to match the...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$6.98
- DIY Solutions®Front Disc Brake Pad Wear SensorsMercedes 450SL / 450SLC 1978, Front Disc Brake Pad Wear Sensors by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look...Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again$14.80$16.27Save $1.47 (9%)
- Raybestos®R-Line™ Front Disc Brake Pad Wear SensorMercedes 450SL / 450SLC 1978, R-Line™ Front Disc Brake Pad Wear Sensor by Raybestos®. Determining the condition of the brake pads, this sensor enables you to make necessary replacements before your vehicle's brake system totally...Senses when brake pads wear outOE fit and function$7.56
- Standard®Intermotor™ Alternator Brush SetMercedes SL Class 4.5L 1978, Intermotor™ Alternator Brush Set by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$6.35
- URO Parts®Cooling Fan RelayMercedes SL Class 4.5L 1978, Cooling Fan Relay by URO Parts®. Amperage Rating: 20 Amp. This superior part by URO is a great alternative solution to the costly factory equipment that will help you restore smooth and efficient operation...Designed to replace your worn out factory cooling partOptimizes engine cooling performance$9.48
- Dorman®HVAC Clutch Coil ConnectorMercedes SL Class 4.5L with Frigidaire Compressor 1978, HVAC Clutch Coil Connector by Dorman®. Non-Weatherpack Style. Type: Blade Female Terminal. Wire Quantity: 2. Overall Length: 7". Non-Weatherpack Style. Dorman offers a...Direct replacement A/C Clutch Coil Connectors available (where applicable) to ensure a proper fitVehicle try-on testing has been conducted on this part to ensure a trouble-free performance$8.50
- Dorman®HVAC Relay ConnectorMercedes SL Class 4.5L 1978, HVAC Relay Connector by Dorman®. Type: Blade Female Terminal. Wire Quantity: 5. Overall Length: 9". Dorman offers a comprehensive line of A/C Relay Connectors for a wide range of applications. All A/C Relay...Direct replacement A/C Relay Connectors available (where applicable) to ensure a proper fitVehicle try-on testing has been conducted on this part to ensure a trouble-free performance$9.09
Shop By Service Type
Popular Products
1978 Mercedes SL Class Electrical Reviews
1 review
Direct Fit, Works Great
Replacement - Turn Signal SwitchPosted by James (Miami, FL) / March 06, 20241978 Mercedes SL Class
1978 Mercedes SL Class Models