Get an exact fit for your

Mercury Custom

Choose Year
Choose Make
Choose Model

Select Terminal Type

All

9

Spade

2

Wire Leads

2

Blade

1

9 products

Clear All

Fitment

Mercury Custom

Category

Electrical, Lighting and Wiring

Subcategory

Sensors, Relays, Senders, and Fuses

Part

Multi Purpose Relays

Products

Related Articles

1949 Mercury Drag Car by Precision Designs

1949 Mercury Drag Car by Precision Designs

Read More

This drag and drive '49 Mercury is not at all what you'd expect from a chopped Merc. It's part custom, part hot rod, and built to do it all.

Mick's 1950 Mercury Custom

Mick's 1950 Mercury Custom

Read More

Mick Rau has a garage full of cool cars, but this Hirohata-inspired Merc is a standout.

Replacing Sway Bars in a Mercury Comet

Replacing Sway Bars in a Mercury Comet

Read More

How to replace sway bars in a Mercury Comet and the advantages that come with it.

Comet Pedal Car Custom

Comet Pedal Car Custom

Read More

Follow along as Product Guru Jeff K. talks about customizing a Comet Pedal Car for his son!

Custom Rear Radius Rods on a '33 5-Window

Custom Rear Radius Rods on a '33 5-Window

Read More

Speedway Motors employee Jess M. talks about customizing the rear radius rods she installed on her '33 5-Window coupe.

Murray Comet Pedal Car Assembly

Murray Comet Pedal Car Assembly

Read More

Learn about 'Speedy' Bill's passion for pedal cars and how that has been passed down through generations in the Smith family. Jess also explains the step by step process to assemble Speedway's Murray Comet style pedal car.

Showing all 9 results

Popular Parts

Mercury Custom Engine Temperature SendersMercury Custom Fuse StripsMercury Custom Power Distribution BlocksMercury Custom Fuse BlocksMercury Custom Engine Oil Pressure SendersMercury Custom FlashersMercury Custom Lighting Control ModulesMercury Custom Fusible LinksMercury Custom Ignition RelaysMercury Custom Fuel Pump RelaysMercury Custom Bulb Resistors
Customer Impersonation Script