1978 Mercury Marquis Electrical Parts
Find Your Specific 1978 Mercury Marquis Electrical Parts
Below you will find various in-demand Mercury Electrical Parts, components and accessories for your 1978 Marquis. Advance Auto Parts has popular Marquis parts like Electrical Motors, Electrical Connectors, Driving Safety Monitoring System Parts and more. You’ll also find aftermarket and OEM Electrical Parts for other Marquis model years including
1977,
1979,
1980,
1981,
1982,
1983,
1984,
1985,
1986 and more. Select a category of 1978 Mercury Marquis Electrical Parts below and start saving instantly.
Popular 1978 Mercury Marquis Electrical Parts Categories
Essential Electrical Parts for 1978 Mercury Marquis
Carquest Premium – Electric Fuel Pump Inertia Switch (Part No.SBA4426)
from
$62.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Electric Fuel Pump Inertia Switch automatically shuts off the fuel pump in the event of a collision, enhancing safety by preventing fuel leakage and reducing the risk of fire after an accident. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Carquest Premium – Multi-Use Connector (Part No.PTA1345)
from
$9.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
Product Features:
See More
Product Features:
- Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- Sealed connections (where applicable) to prevent environmental corrosion and performance issues
- Global coverage for import and/or domestic applications
- OE specified wire gauge to ensure a reliable electrical connection
- Designed to meet or exceed OE specifications in form, fit and function
Carquest – Electrical Connector (Part No.PT5605)
from
$13.79
The Intermotor brand has built its reputation by engineering and distributing a full line of genuine import parts – parts that are unrivaled for quality, original look, fit, form & function, as well as coverage.
Product Features:
See More
Product Features:
- Offering hundreds of high-quality pigtails & sockets for nearly every electrical job
- Utilizing high grade materials to ensure peak conductivity and perfect connections
- Decades of industry leading research and development focused on meeting the technician’s needs
- With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues
Carquest Premium – Multi-Use Connector (Part No.PTA1722)
from
$53.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
Product Features:
See More
Product Features:
- Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- Sealed connections (where applicable) to prevent environmental corrosion and performance issues
- Global coverage for import and/or domestic applications
- OE specified wire gauge to ensure a reliable electrical connection
- Designed to meet or exceed OE specifications in form, fit and function
Carquest Premium – Engine Oil Pressure Switch (Part No.SAA4556)
from
$15.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Oil Pressure Sensor/Switch monitors the engine¿s oil pressure, providing critical feedback to the driver and engine control unit to prevent potential damage from low oil pressure conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Carquest Premium – Engine Oil Pressure Switch (Part No.SAC4542)
from
$22.49
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Oil Pressure Sensor/Switch monitors the engine¿s oil pressure, providing critical feedback to the driver and engine control unit to prevent potential damage from low oil pressure conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Carquest – Engine Oil Pressure Switch (Part No.59A1031)
from
$12.99
Carquest Vehicle Solutions provides high-quality solutions for a wide range of applications. The Oil Pressure Sensor/Switch monitors the engine¿s oil pressure, providing critical feedback to the driver and engine control unit to prevent potential damage from low oil pressure conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Carquest Premium – Engine Oil Pressure Switch (Part No.SBA3248)
from
$12.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Oil Pressure Sensor/Switch monitors the engine¿s oil pressure, providing critical feedback to the driver and engine control unit to prevent potential damage from low oil pressure conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Dorman – Power Window Lift Motor (Part No.742-250)
from
$57.99
Window motor worn out? This power window lift motor is precision-engineered to match the fit and performance of the original motor in specific vehicle years, makes and models for a reliable replacement.
Product Features:
See More
Product Features:
- Direct replacement – this power window motor is built to match the original lift motor on specific vehicles
- Cost-effective solution – comparable quality for lower cost than buying replacement at the dealership
- Seamless installation – manufactured to fit directly into existing wiring systems
- Trustworthy value – backed by team of engineers and quality control experts in the United States
Dorman – Power Window Lift Motor (Part No.742-251)
from
$57.99
Window motor worn out? This power window lift motor is precision-engineered to match the fit and performance of the original motor in specific vehicle years, makes and models for a reliable replacement.
Product Features:
See More
Product Features:
- Direct replacement – this power window motor is built to match the original lift motor on specific vehicles
- Cost-effective solution – comparable quality for lower cost than buying replacement at the dealership
- Seamless installation – manufactured to fit directly into existing wiring systems
- Trustworthy value – backed by team of engineers and quality control experts in the United States
Upgrade your 1978 Mercury Marquis with Top-Quality Electrical Parts
When it comes to maintaining or upgrading your 1978 Mercury Marquis, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Mercury or enhancing its overall performance, Electrical Parts are key to keeping your Marquis functioning at its best. At Advance Auto Parts, we offer a wide selection of 9 Electrical Parts for the 1978 Mercury Marquis, designed to meet your needs without breaking the bank.
From
Electrical Motor
replacements to
Electrical Connectors
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Electrical Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Electrical Parts for your 1978 Mercury Marquis at great prices.
Our Electrical Parts inventory for this model
ranges from just $9.99 to $62.99, with
an average price of $34.25.
Our 9 Electrical Parts in stock come from 3 trusted brands, so you’re sure to find the right part for your 1978 Mercury Marquis without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1978 Mercury Marquis, we stock popular OEM and aftermarket Electrical Parts from top names
like Dorman, and more.
Dorman Electrical Parts
start at just $57.99 and boast an impressive 4.2 stars average rating from customers.
With 119 customer reviews and counting, our 1978 Mercury Marquis Electrical Parts have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Electrical Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 1978 Mercury Marquis is always ready to roll. We’re committed to providing you with everything you need to keep your Marquis in top shape, all in one place.
Start shopping confidently below for your 1978 Mercury Marquis!
Best-Selling Electrical Motors for 1978 Mercury Marquis
Enhance the driving experience in your Mercury with 2 quality Electrical Motor components, starting at $57.99.
Dorman – Power Window Lift Motor (Part No.742-250)
from
$57.99
Window motor worn out? This power window lift motor is precision-engineered to match the fit and performance of the original motor in specific vehicle years, makes and models for a reliable replacement.
Product Features:
See More
Product Features:
- Direct replacement – this power window motor is built to match the original lift motor on specific vehicles
- Cost-effective solution – comparable quality for lower cost than buying replacement at the dealership
- Seamless installation – manufactured to fit directly into existing wiring systems
- Trustworthy value – backed by team of engineers and quality control experts in the United States
Dorman – Power Window Lift Motor (Part No.742-251)
from
$57.99
Window motor worn out? This power window lift motor is precision-engineered to match the fit and performance of the original motor in specific vehicle years, makes and models for a reliable replacement.
Product Features:
See More
Product Features:
- Direct replacement – this power window motor is built to match the original lift motor on specific vehicles
- Cost-effective solution – comparable quality for lower cost than buying replacement at the dealership
- Seamless installation – manufactured to fit directly into existing wiring systems
- Trustworthy value – backed by team of engineers and quality control experts in the United States
Most Popular 1978 Mercury Marquis Electrical Connectors
Customize your Mercury with 6 Electrical Connectors products
like Oil Pressure Switch and Senders,
Fog Light Connectors, and
Starter Motor Relay Connectors, all
priced under $53.99.
Carquest – Electrical Connector (Part No.PT5605)
from
$13.79
The Intermotor brand has built its reputation by engineering and distributing a full line of genuine import parts – parts that are unrivaled for quality, original look, fit, form & function, as well as coverage.
Product Features:
See More
Product Features:
- Offering hundreds of high-quality pigtails & sockets for nearly every electrical job
- Utilizing high grade materials to ensure peak conductivity and perfect connections
- Decades of industry leading research and development focused on meeting the technician’s needs
- With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues
Carquest Premium – Engine Oil Pressure Switch (Part No.SAC4542)
from
$22.49
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Oil Pressure Sensor/Switch monitors the engine¿s oil pressure, providing critical feedback to the driver and engine control unit to prevent potential damage from low oil pressure conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Carquest Premium – Engine Oil Pressure Switch (Part No.SAA4556)
from
$15.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Oil Pressure Sensor/Switch monitors the engine¿s oil pressure, providing critical feedback to the driver and engine control unit to prevent potential damage from low oil pressure conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Carquest Premium – Multi-Use Connector (Part No.PTA1722)
from
$53.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
Product Features:
See More
Product Features:
- Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- Sealed connections (where applicable) to prevent environmental corrosion and performance issues
- Global coverage for import and/or domestic applications
- OE specified wire gauge to ensure a reliable electrical connection
- Designed to meet or exceed OE specifications in form, fit and function
Carquest – Engine Oil Pressure Switch (Part No.59A1031)
from
$12.99
Carquest Vehicle Solutions provides high-quality solutions for a wide range of applications. The Oil Pressure Sensor/Switch monitors the engine¿s oil pressure, providing critical feedback to the driver and engine control unit to prevent potential damage from low oil pressure conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Carquest Premium – Multi-Use Connector (Part No.PTA1345)
from
$9.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
Product Features:
See More
Product Features:
- Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- Sealed connections (where applicable) to prevent environmental corrosion and performance issues
- Global coverage for import and/or domestic applications
- OE specified wire gauge to ensure a reliable electrical connection
- Designed to meet or exceed OE specifications in form, fit and function
Top Picks for 1978 Mercury Marquis Driving Safety Monitoring System Parts
Upgrade Mercury Marquis with top-quality Driving Safety Monitoring System Parts parts, including 1 OEM and aftermarket selections for your 1978 model.
Carquest Premium – Electric Fuel Pump Inertia Switch (Part No.SBA4426)
from
$62.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Electric Fuel Pump Inertia Switch automatically shuts off the fuel pump in the event of a collision, enhancing safety by preventing fuel leakage and reducing the risk of fire after an accident. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Top-Rated Electrical Parts Brands For Your 1978 Mercury Marquis
Shop for the best-rated brands offering Electrical Parts and other products for your 1978 Mercury Marquis. Below you’ll find some of our best rated Electrical Parts from Dorman, and more. Electrical Parts from these brands that fit a 1978 Marquis start at just $57.99 and are rated as high as 4.2 stars. OEM and aftermarket Electrical Parts don’t get more top quality, durable, and affordable than from the brands below.
Popular Dorman 1978 Mercury Marquis Electrical Parts
When it comes to maintaining or upgrading your 1978 Mercury Marquis, using quality Electrical Parts is essential to ensure durability and a perfect fit. Dorman ticks all of those boxes. We offer a wide selection of Dorman Electrical Parts, specifically designed for the 1978 Mercury Marquis. With over 1 Dorman brand Electrical Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $57.99. Plus, with over 6 customer reviews and an average rating of 4.2 stars, you can trust that our Dorman Electrical Parts will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
FAQs for 1978 Mercury Marquis Electrical Parts
Which Electrical Parts are best-sellers for 1978 Mercury Marquis?
Out of 9 Electrical Parts that fit 1978 Mercury Marquis, the following parts are the top sellers:
- Engine Oil Pressure Switch (12444750) – $22.49
- Engine Oil Pressure Switch (12459296) – $15.99
- Electrical Connector (22070105) – $13.79
What’s the price range for 1978 Mercury Marquis Electrical Parts?
Electrical Part prices for the 1978 Mercury Marquis start at $9.99 and go up to $62.99 for the most premium parts.
What’s the average price of a Electrical Part for a 1978 Mercury Marquis?
The average price for Electrical Parts for the 1978 Mercury Marquis is $34.25. Keep in mind the variety of part types within our Electrical Part category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Electrical Parts for other Mercury Marquis model years?
What are the cheapest Electrical Parts for my 1978 Mercury Marquis?
The cheapest 1978 Mercury Marquis Electrical Parts we carry in stock are:
- Multi-Use Connector (12447066) – $9.99
- Engine Oil Pressure Switch (12478148) – $12.99
- Electrical Connector (22070105) – $13.79
- Engine Oil Pressure Switch (12459296) – $15.99
- Engine Oil Pressure Switch (12444750) – $22.49
What are the top-rated Electrical Parts that fit the 1978 Mercury Marquis?
Out of 119 reviews by customers, our 1978 Mercury Marquis Electrical Parts have an average customer rating of . These are some of the highest-rated Electrical Part types for the 1978 Mercury Marquis and their top-rated products:
- Electrical Connectors
- Electrical Connector (22070105) – $13.79
- Electrical Motors
- Electrical Connector (22070105) – $13.79
What types of Electrical Parts do you sell for my 1978 Mercury Marquis?
As of 11/2/25, these are some of the most in-demand types of Electrical Parts for a 1978 Mercury Marquis:
Can I get help with 1978 Mercury Marquis Electrical Part orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Mercury Electrical Parts and more.
What is your return policy for Mercury Marquis Electrical Parts?
Advance Auto Parts keeps returns simple. For new Mercury Marquis Electrical Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
