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Mercury Cyclone Spark Plugs 

At Andy's Auto Sport, we have a huge variety of Mercury Cyclone spark plugs to ensure that you have every spark plug option available to you. We go out of our way to carry every major line of Mercury Cyclone spark plugs, so that whether you are looking for replacement Mercury Cyclone spark plugs or performance spark plugs or anything in between, we've got it for you. Andy's Auto Sport is the ultimate shopping destination for your Mercury Cyclone spark plug needs!


 Select Your Vehicle

Shop Mercury Cyclone Spark Plugs by Year

Shop Mercury Cyclone Spark Plugs by Brand


1 - 12 of 19
Sort by:




Fits: 1963 Ford Ford 300 , 1967 Mercury Brougham , 57-70 Fairlane , 57-70 Ford Fairlane 500, 57-74 Ford Country Sedan, 57-74 Ford Country Squire , 57-74 For...

PART# 8201

$183.93


Free Shipping!


Fits: 1963 Ford Ford 300 , 1967 Mercury Brougham , 57-70 Fairlane , 57-70 Ford Fairlane 500, 57-74 Ford Country Sedan, 57-74 Ford Country Squire , 57-74 For...

PART# 8203

$91.15


Free Shipping!


Fits: 1970 Ford Fairlane 500, 1971 Bel Air , 1971 Biscayne , 1971 Brookwood , 1971 Chevelle, 1971 Chevelle Concours, 1971 Chevelle Concours Estate, 1971 Che...

PART# 0576-4

$46.78


Free Shipping!


Fits: 1970 Ford Fairlane 500, 1971 Bel Air , 1971 Biscayne , 1971 Brookwood , 1971 Chevelle, 1971 Chevelle Concours, 1971 Chevelle Concours Estate, 1971 Che...

PART# 0276-4

$46.78


Free Shipping!


Fits: 1968 Mercury Commuter , 1968 Mercury Montclair , 1968 Mercury Park Lane , 1974 Ford Mustang II 2+2, 1974 Mustang II, 1974 Mustang II Ghia, 66-67 Ford ...

PART# 0378-4

$46.78


Free Shipping!



Fits: 1968 Mercury Colony Park , 1968 Mercury Commuter , 1968 Mercury Montclair , 1968 Mercury Park Lane , 1969 Mercury Montego MX, 1970 Ford Ranch Wagon Po...

PART# 0375-4

$46.72


Free Shipping!


Fits: 1970 Falcon Futura, 1970 Ford Fairlane 500, 1970 Ford Falcon, 1971 Ford Country Sedan, 1971 Ford Maverick , 1971 Ford Thunderbird , 1971 Marquis Broug...

PART# 0574-4

$46.72


Free Shipping!


Fits: 1970 Ford Fairlane 500, 1971 Cougar XR-7, 1971 Ford Country Sedan, 1971 Ford Country Squire , 1971 Ford Custom 500 , 1971 Ford Galaxie 500 , 1971 Ford...

PART# 0274-4

$46.72


Free Shipping!


Fits: 1970 Ford Fairlane 500, 1971 Bel Air , 1971 Biscayne , 1971 Brookwood , 1971 Chevelle, 1971 Chevelle Concours, 1971 Chevelle Concours Estate, 1971 Che...

PART# 0276S-4

$44.11


Free Shipping!


Fits: 1970 Falcon Futura, 1970 Ford Fairlane 500, 1970 Ford Falcon, 1971 Ford Country Sedan, 1971 Ford Maverick , 1971 Ford Thunderbird , 1971 Marquis Broug...

PART# 0574S-4

$49.80


Free Shipping!


Fits: 1970 Ford Fairlane 500, 1971 Bel Air , 1971 Biscayne , 1971 Brookwood , 1971 Chevelle, 1971 Chevelle Concours, 1971 Chevelle Concours Estate, 1971 Che...

PART# 0576S-4

$49.80


Free Shipping!


Fits: 1970 Falcon Futura, 1970 Ford Fairlane 500, 1970 Ford Falcon, 1971 Ford Country Sedan, 1971 Ford Maverick , 1971 Marquis Brougham, 1971 Mercury Colony...

PART# 8177

$83.00


Free Shipping!


Previous12Next

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Not able to find what you are looking for?

(8) Genuine GM ACDelco Spark Plugs R43TS

Genuine GM ACDelco Spark Plugs R43TS Set Of 8

E3.42 - E3 Spark Plug 8 Spark Plugs - 5 Year Warranty or 100,000 Miles

8 pc E3 Spark Plugs for 1968-1971 Mercury Cyclone 4.7L 5.0L 5.8L 6.4L 7.0L lf

E3.72 E3 Premium Automotive Spark Plugs - 8 SPARK PLUG Warranty 5 Year/100,000

8 NGK Iridium Spark Plugs for 1971 Mercury Cyclone V8-7.0L




WHY TO BUY?
First off, your Mercury Cyclone engine won't run without spark plugs - it won't even turn on without them. So, in that sense, you have no choice but to use spark plugs. However, beyond that, the proper Mercury Cyclone spark plugs can improve performance and fuel economy, especially if your current spark plugs have been in use for a while. Some people change their Mercury Cyclone spark plugs at every oil change, some change them annually, and some go by a specified mileage interval. Whatever your preferred schedule, you should inspect the plugs as often as possible, especially if you are experiencing hesitation or missing, or after you have made modifications to your engine.

DID YOU KNOW?
Spark plugs convert your Mercury Cyclone engine's air/fuel mixture into energy by igniting it in the combustion chamber, making them one of the most important components in your ignition system, not to mention your engine itself. As critical as they are, it seems that they are neglected far too often and aren't given enough consideration when making performance modifications. Choosing the proper heat range for your Mercury Cyclone spark plugs is just as important as making sure that the plugs are gapped correctly, so keep this in mind when choosing plugs for your stock or modified Mercury Cyclone engine.
FAQs
Q: How do you install spark plugs?
A: Spark plugs are installed by using a spark plug socket. Simply remove the spark plug wires and unbolt the plugs. Replace and gap the new plugs and you should be set.

Q: What are spark plugs? Why buy spark plugs?
A: Spark plugs create a spark in the combustion chamber of the engine, igniting the fuel and air mixture and getting the engine running. When you're running a higher horsepower motor, spark plugs play a big role. A colder heat range plug (which is what more aftermarket spark plugs are) has less insulation; it cools off faster between firing and the introduction of a fresh charge of the air/fuel mixture. A hot plug can ignite the air/fuel mixture before the plug actually fires. This is called pre-ignition, a form of detonation, and can destroy a motor. When upgrading the power of your vehicle, make sure to look into a colder range spark plug.

Q: Do spark plugs come in sets of 4?
A: Spark plugs are sold individually (unless otherwise noted) and should be replaced all at the same time.




Mercury Cyclone Spark Plugs 

At Andy's Auto Sport, we have a huge variety of Mercury Cyclone spark plugs to ensure that you have every spark plug option available to you. We go out of our way to carry every major line of Mercury Cyclone spark plugs, so that whether you are looking for replacement Mercury Cyclone spark plugs or performance spark plugs or anything in between, we've got it for you. Andy's Auto Sport is the ultimate shopping destination for your Mercury Cyclone spark plug needs!


Choose Your Vehicle:

Shop Mercury Cyclone Spark Plugs by Year

Shop Mercury Cyclone Spark Plugs by Brand

1 - 12 of 19
Sort by:




Fits: 1963 Ford Ford 300 , 1967 Mercury Brougham , 57-70 Fairlane , 57-70 Ford Fairlane 500, 57-74 Ford Country Sedan, 57-74 Ford Country Squire , 57-74 For...

PART# 8201

$183.93


Free Shipping!


Fits: 1963 Ford Ford 300 , 1967 Mercury Brougham , 57-70 Fairlane , 57-70 Ford Fairlane 500, 57-74 Ford Country Sedan, 57-74 Ford Country Squire , 57-74 For...

PART# 8203

$91.15


Free Shipping!


Fits: 1970 Ford Fairlane 500, 1971 Bel Air , 1971 Biscayne , 1971 Brookwood , 1971 Chevelle, 1971 Chevelle Concours, 1971 Chevelle Concours Estate, 1971 Che...

PART# 0576-4

$46.78


Free Shipping!


Fits: 1970 Ford Fairlane 500, 1971 Bel Air , 1971 Biscayne , 1971 Brookwood , 1971 Chevelle, 1971 Chevelle Concours, 1971 Chevelle Concours Estate, 1971 Che...

PART# 0276-4

$46.78


Free Shipping!


Fits: 1968 Mercury Commuter , 1968 Mercury Montclair , 1968 Mercury Park Lane , 1974 Ford Mustang II 2+2, 1974 Mustang II, 1974 Mustang II Ghia, 66-67 Ford ...

PART# 0378-4

$46.78


Free Shipping!


Fits: 1968 Mercury Colony Park , 1968 Mercury Commuter , 1968 Mercury Montclair , 1968 Mercury Park Lane , 1969 Mercury Montego MX, 1970 Ford Ranch Wagon Po...

PART# 0375-4

$46.72


Free Shipping!


Fits: 1970 Falcon Futura, 1970 Ford Fairlane 500, 1970 Ford Falcon, 1971 Ford Country Sedan, 1971 Ford Maverick , 1971 Ford Thunderbird , 1971 Marquis Broug...

PART# 0574-4

$46.72


Free Shipping!


Fits: 1970 Ford Fairlane 500, 1971 Cougar XR-7, 1971 Ford Country Sedan, 1971 Ford Country Squire , 1971 Ford Custom 500 , 1971 Ford Galaxie 500 , 1971 Ford...

PART# 0274-4

$46.72


Free Shipping!


Fits: 1970 Ford Fairlane 500, 1971 Bel Air , 1971 Biscayne , 1971 Brookwood , 1971 Chevelle, 1971 Chevelle Concours, 1971 Chevelle Concours Estate, 1971 Che...

PART# 0276S-4

$44.11


Free Shipping!


Fits: 1970 Falcon Futura, 1970 Ford Fairlane 500, 1970 Ford Falcon, 1971 Ford Country Sedan, 1971 Ford Maverick , 1971 Ford Thunderbird , 1971 Marquis Broug...

PART# 0574S-4

$49.80


Free Shipping!


Fits: 1970 Ford Fairlane 500, 1971 Bel Air , 1971 Biscayne , 1971 Brookwood , 1971 Chevelle, 1971 Chevelle Concours, 1971 Chevelle Concours Estate, 1971 Che...

PART# 0576S-4

$49.80


Free Shipping!


Fits: 1970 Falcon Futura, 1970 Ford Fairlane 500, 1970 Ford Falcon, 1971 Ford Country Sedan, 1971 Ford Maverick , 1971 Marquis Brougham, 1971 Mercury Colony...

PART# 8177

$83.00


Free Shipping!


Previous12Next

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Not able to find what you are looking for?

(8) Genuine GM ACDelco Spark Plugs R43TS

Genuine GM ACDelco Spark Plugs R43TS Set Of 8

E3.42 - E3 Spark Plug 8 Spark Plugs - 5 Year Warranty or 100,000 Miles

8 pc E3 Spark Plugs for 1968-1971 Mercury Cyclone 4.7L 5.0L 5.8L 6.4L 7.0L lf

E3.72 E3 Premium Automotive Spark Plugs - 8 SPARK PLUG Warranty 5 Year/100,000

8 NGK Iridium Spark Plugs for 1971 Mercury Cyclone V8-7.0L




WHY TO BUY?
First off, your Mercury Cyclone engine won't run without spark plugs - it won't even turn on without them. So, in that sense, you have no choice but to use spark plugs. However, beyond that, the proper Mercury Cyclone spark plugs can improve performance and fuel economy, especially if your current spark plugs have been in use for a while. Some people change their Mercury Cyclone spark plugs at every oil change, some change them annually, and some go by a specified mileage interval. Whatever your preferred schedule, you should inspect the plugs as often as possible, especially if you are experiencing hesitation or missing, or after you have made modifications to your engine.

DID YOU KNOW?
Spark plugs convert your Mercury Cyclone engine's air/fuel mixture into energy by igniting it in the combustion chamber, making them one of the most important components in your ignition system, not to mention your engine itself. As critical as they are, it seems that they are neglected far too often and aren't given enough consideration when making performance modifications. Choosing the proper heat range for your Mercury Cyclone spark plugs is just as important as making sure that the plugs are gapped correctly, so keep this in mind when choosing plugs for your stock or modified Mercury Cyclone engine.
FAQs
Q: How do you install spark plugs?
A: Spark plugs are installed by using a spark plug socket. Simply remove the spark plug wires and unbolt the plugs. Replace and gap the new plugs and you should be set.

Q: What are spark plugs? Why buy spark plugs?
A: Spark plugs create a spark in the combustion chamber of the engine, igniting the fuel and air mixture and getting the engine running. When you're running a higher horsepower motor, spark plugs play a big role. A colder heat range plug (which is what more aftermarket spark plugs are) has less insulation; it cools off faster between firing and the introduction of a fresh charge of the air/fuel mixture. A hot plug can ignite the air/fuel mixture before the plug actually fires. This is called pre-ignition, a form of detonation, and can destroy a motor. When upgrading the power of your vehicle, make sure to look into a colder range spark plug.

Q: Do spark plugs come in sets of 4?
A: Spark plugs are sold individually (unless otherwise noted) and should be replaced all at the same time.






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VIDEOS RELATED TO MERCURY CYCLONE SPARK PLUGS