Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009
JOIN GEARS TO SAVE 5%
Shop All Brands
Shopping for

1974 Mercury Marquis

X
  2. Auto Parts
  3. Ignition
  4. Secondary Ignition
  5. Spark Plug for 1974 Mercury Marquis

1974 Mercury Marquis: Spark Plug


Displaying 1 to 25 (of 33 products)

Autolite 25 Spark Plug
for 1974 Mercury Marquis

Autolite
On Sale:

$4.10
Avail:
16 in Stock
Warehouse: US-7
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Copper Resistor
OE Style
Gap .044 (in)
 
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Copper Resistor
OE Style
Gap .044 (in)

8 Per Vehicle

Autolite AP25 Spark Plug
for 1974 Mercury Marquis

Autolite
On Sale:

$6.35
Avail:
31 in Stock
Warehouse: US-7
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Platinum
Gap .044 (in)
 
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Platinum
Gap .044 (in)

8 Per Vehicle

Autolite AP26 Spark Plug
for 1974 Mercury Marquis

Autolite
On Sale:

$6.35
Avail:
1 in Stock
Warehouse: US-7
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
8
 
Platinum
Gap .044 (in)
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV Platinum
Gap .044 (in)

8 Per Vehicle

Autolite APP25 Spark Plug
for 1974 Mercury Marquis

Autolite
On Sale:

$8.81
Avail:
25 in Stock
Warehouse: US-7
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Double Platinum
Gap .044 (in)
 
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Double Platinum
Gap .044 (in)

8 Per Vehicle

Autolite AR25 Spark Plug
for 1974 Mercury Marquis

Autolite
On Sale:

$7.17
Avail:
4 in Stock
Warehouse: US-7
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
1
 
High Performance Racing Resistor
Gap .044 (in)
 
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV High Performance Racing Resistor
Gap .044 (in)

1 Per Vehicle

Autolite XP25 Spark Plug
for 1974 Mercury Marquis

Autolite
On Sale:

$10.60
Avail:
35 in Stock
Warehouse: US-7
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Iridium XP
Gap .044 (in)
 
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Iridium XP
Gap .044 (in)

8 Per Vehicle

Denso 4509 Spark Plug
for 1974 Mercury Marquis

Denso
On Sale:

$4.67
Avail:
75 in Stock
Warehouse: US-1
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV
 
8
 
Platinum TT
Gap 0.040
Platinum TT
Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV Platinum TT
Gap 0.040
Platinum TT
Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap

8 Per Vehicle

Denso 5026 Spark Plug
for 1974 Mercury Marquis

Denso
On Sale:

$3.19
Avail:
8 in Stock
Warehouse: US-1
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV
 
8
 
U-Groove Conventional
Gap 0.044
O.E. Recommended Resistor Plug with Patented U-Groove Design
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV U-Groove Conventional
Gap 0.044
O.E. Recommended Resistor Plug with Patented U-Groove Design

8 Per Vehicle

ACDelco 1 Spark Plug
for 1974 Mercury Marquis

ACDelco
On Sale:

$5.64
Avail:
309 in Stock
Warehouse: US-12
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
5.8L V8 Gas OHV
 
8
 
Gold-RAPIDFIRE
Gap 0.044 (in)
Eng Ver: Cleveland
 
1974 Mercury Marquis equipped with
5.8L V8 Gas OHV Gold-RAPIDFIRE
Gap 0.044 (in)
Eng Ver: Cleveland

8 Per Vehicle

ACDelco 2 Spark Plug
for 1974 Mercury Marquis

ACDelco
On Sale:

$5.64
Avail:
220 in Stock
Warehouse: US-12
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV
 
8
 
Gold-RAPIDFIRE
Gap 0.044 (in)
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV Gold-RAPIDFIRE
Gap 0.044 (in)

8 Per Vehicle

ACDelco 41-803 Spark Plug
for 1974 Mercury Marquis

ACDelco
On Sale:

$7.21
Avail:
154 in Stock
Warehouse: US-12
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV
 
8
 
Gold-Double Platinum
Gap 0.044 (in)
 
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV Gold-Double Platinum
Gap 0.044 (in)

8 Per Vehicle
1974 Mercury Marquis equipped with
5.8L V8 Gas OHV
 
8
 
Gold-Double Platinum
Gap 0.044 (in)
Eng Ver: Cleveland
 
1974 Mercury Marquis equipped with
5.8L V8 Gas OHV Gold-Double Platinum
Gap 0.044 (in)
Eng Ver: Cleveland

8 Per Vehicle

ACDelco 41-905 Spark Plug
for 1974 Mercury Marquis

ACDelco
On Sale:

$7.53
Avail:
641 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
8
 
GM Original Equipment-Double Platinum
Gap 0.044 (in)
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV GM Original Equipment-Double Platinum
Gap 0.044 (in)

8 Per Vehicle

ACDelco R45TS Spark Plug
for 1974 Mercury Marquis

ACDelco
On Sale:

$3.45
Avail:
1674 in Stock
Warehouse: US-12
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
8
 
GM Original Equipment-Conventional
Gap .044
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV GM Original Equipment-Conventional
Gap .044

8 Per Vehicle

NGK 2841 Spark Plug
for 1974 Mercury Marquis

Avail:
0 in Stock
 OUT OF STOCK
View Product
EngineFit NotesFitment Notes
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV
 
Gap .044
Part # {UR4VX}
Plat.
VIN: S, 2BBL, Natural
 
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV Gap .044
Part # {UR4VX}
Plat.
VIN: S, 2BBL, Natural
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
Gap .044
Part # {UR4VX}
Plat.
VIN: A, 4BBL, Natural
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV Gap .044
Part # {UR4VX}
Plat.
VIN: A, 4BBL, Natural
1974 Mercury Marquis equipped with
6.6L V8 Gas
 
Gap .044
Part # {UR4VX}
Plat.
VIN: S, Natural
 
1974 Mercury Marquis equipped with
6.6L V8 Gas Gap .044
Part # {UR4VX}
Plat.
VIN: S, Natural
1974 Mercury Marquis equipped with
7.5L V8 Gas
 
Exc. Cal.
Gap .044
Part # {UR4VX}
Plat.
VIN: A, Natural
 
1974 Mercury Marquis equipped with
7.5L V8 Gas Exc. Cal.
Gap .044
Part # {UR4VX}
Plat.
VIN: A, Natural
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
Exc. Cal.
Gap .044
Part # {UR4VX}
Plat.
VIN: A, 4BBL, Natural
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV Exc. Cal.
Gap .044
Part # {UR4VX}
Plat.
VIN: A, 4BBL, Natural
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
Exc. Cal.
Gap .044
Part # {UR4VX}
Plat.
VIN: C, 4BBL, Natural
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV Exc. Cal.
Gap .044
Part # {UR4VX}
Plat.
VIN: C, 4BBL, Natural
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
Gap .044
Part # {UR4VX}
Plat.
VIN: C, 4BBL, Natural
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV Gap .044
Part # {UR4VX}
Plat.
VIN: C, 4BBL, Natural

NGK 2869 Spark Plug
for 1974 Mercury Marquis

NGK
On Sale:

$4.52
Avail:
282 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
G-Power Spark Plug
Gap 0.044
 
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV G-Power Spark Plug
Gap 0.044

8 Per Vehicle
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
8
 
G-Power Spark Plug
Federal Emissions
Gap 0.044
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV G-Power Spark Plug
Federal Emissions
Gap 0.044

8 Per Vehicle

NGK 3207 Spark Plug
for 1974 Mercury Marquis

NGK
On Sale:

$4.52
Avail:
113 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
8
 
G-Power Spark Plug
California Emissions
Gap 0.054
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV G-Power Spark Plug
California Emissions
Gap 0.054

8 Per Vehicle

NGK 6630 Spark Plug
for 1974 Mercury Marquis

NGK
On Sale:

$3.62
Avail:
368 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
V-Power Spark Plug
Gap 0.044
OE Equivalent Design
 
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV V-Power Spark Plug
Gap 0.044
OE Equivalent Design

8 Per Vehicle
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
8
 
V-Power Spark Plug
Federal Emissions
Gap 0.044
OE Equivalent Design
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV V-Power Spark Plug
Federal Emissions
Gap 0.044
OE Equivalent Design

8 Per Vehicle

NGK 6945 Spark Plug
for 1974 Mercury Marquis

NGK
On Sale:

$3.62
Avail:
78 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
8
 
V-Power Spark Plug
California Emissions
Gap 0.054
OE Equivalent Design
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV V-Power Spark Plug
California Emissions
Gap 0.054
OE Equivalent Design

8 Per Vehicle

NGK 7401 Spark Plug
for 1974 Mercury Marquis

NGK
On Sale:

$7.53
Avail:
141 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Iridium IX Spark Plug
Gap 0.044
 
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Iridium IX Spark Plug
Gap 0.044

8 Per Vehicle
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
8
 
Iridium IX Spark Plug
Federal Emissions
Gap 0.044
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV Iridium IX Spark Plug
Federal Emissions
Gap 0.044

8 Per Vehicle

NGK 7559 Spark Plug
for 1974 Mercury Marquis

NGK
On Sale:

$8.10
Avail:
78 in Stock
Warehouse: US-7
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
8
 
Iridium IX Spark Plug
California Emissions
Gap 0.054
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV Iridium IX Spark Plug
California Emissions
Gap 0.054

8 Per Vehicle

Bosch 4008 Spark Plug
for 1974 Mercury Marquis

Bosch
Avail:
0 in Stock
 OUT OF STOCK
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas,
6.6L V8 Gas
 
1
 
Platinum Plus Spark Plug
Check specification under hood for gap setting
 
1974 Mercury Marquis equipped with
7.5L V8 Gas,
6.6L V8 Gas Platinum Plus Spark Plug
Check specification under hood for gap setting

1 Per Vehicle

Denso 4715 Spark Plug
for 1974 Mercury Marquis

Denso
On Sale:

$8.16
Avail:
71 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV
 
8
 
Iridium TT
Gap 0.040
Iridium TT
Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV Iridium TT
Gap 0.040
Iridium TT
Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology

8 Per Vehicle

Denso 5330 Spark Plug
for 1974 Mercury Marquis

Denso
On Sale:

$7.36
Avail:
84 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV
 
8
 
Iridium Power
Gap 0.044
Iridium Power
Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) and Tapered Tip Patented U-Groove Design and Patented Ir Alloy (90% Ir)
 
1974 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV Iridium Power
Gap 0.044
Iridium Power
Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) and Tapered Tip Patented U-Groove Design and Patented Ir Alloy (90% Ir)

8 Per Vehicle

Denso ITF16 Spark Plug
for 1974 Mercury Marquis

Denso
Avail:
0 in Stock
 OUT OF STOCK
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
7.5L V8 Gas
 
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: A, GAS, CARB, Natural
 
1974 Mercury Marquis equipped with
7.5L V8 Gas Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: A, GAS, CARB, Natural
8 Per Vehicle
1974 Mercury Marquis equipped with
6.6L V8 Gas
 
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: S, GAS, CARB, Natural
 
1974 Mercury Marquis equipped with
6.6L V8 Gas Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: S, GAS, CARB, Natural
8 Per Vehicle

Autolite 25BP Spark Plug
for 1974 Mercury Marquis

Autolite
Avail:
0 in Stock
 OUT OF STOCK
View Product
EnginePer VehicleFit NotesFitment Notes
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Copper Resistor
Bulk Pack
OE Style
Gap .044 (in)
 
1974 Mercury Marquis equipped with
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Copper Resistor
Bulk Pack
OE Style
Gap .044 (in)

8 Per Vehicle
Displaying 1 to 25 (of 33 products)