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1978 Mercury Marquis

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  2. Auto Parts
  3. Ignition
  4. Secondary Ignition
  5. Spark Plug for 1978 Mercury Marquis

1978 Mercury Marquis: Spark Plug


Displaying 1 to 24 (of 24 products)

Denso 5027 Spark Plug
for 1978 Mercury Marquis

Denso
On Sale:

$3.05
Avail:
118 in Stock
Warehouse: US-7
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
6.6L V8 Gas OHV
 
8
 
U-Groove Conventional
Gap 0.060
O.E. Recommended Resistor Plug with Patented U-Groove Design
 
1978 Mercury Marquis equipped with
6.6L V8 Gas OHV U-Groove Conventional
Gap 0.060
O.E. Recommended Resistor Plug with Patented U-Groove Design

8 Per Vehicle

Denso 4509 Spark Plug
for 1978 Mercury Marquis

Denso
On Sale:

$4.22
Avail:
81 in Stock
Warehouse: US-1
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Platinum TT
Gap 0.040
Platinum TT
Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L 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 1978 Mercury Marquis

Denso
On Sale:

$2.77
Avail:
8 in Stock
Warehouse: US-1
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
U-Groove Conventional
Gap 0.044
O.E. Recommended Resistor Plug with Patented U-Groove Design
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
5.8L V8 Gas OHV U-Groove Conventional
Gap 0.044
O.E. Recommended Resistor Plug with Patented U-Groove Design

8 Per Vehicle

ACDelco 2 Spark Plug
for 1978 Mercury Marquis

ACDelco
On Sale:

$5.17
Avail:
229 in Stock
Warehouse: US-12
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Gold-RAPIDFIRE
Gap 0.050 (in)
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Gold-RAPIDFIRE
Gap 0.050 (in)

8 Per Vehicle

ACDelco 41-905 Spark Plug
for 1978 Mercury Marquis

ACDelco
On Sale:

$7.02
Avail:
617 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
GM Original Equipment-Double Platinum
Gap 0.050 (in)
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV GM Original Equipment-Double Platinum
Gap 0.050 (in)

8 Per Vehicle

ACDelco R45TS Spark Plug
for 1978 Mercury Marquis

ACDelco
On Sale:

$3.02
Avail:
467 in Stock
Warehouse: US-12
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
GM Original Equipment-Conventional
Gap .050
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV GM Original Equipment-Conventional
Gap .050

8 Per Vehicle

NGK 2869 Spark Plug
for 1978 Mercury Marquis

NGK
On Sale:

$4.07
Avail:
361 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
5.8L V8 Gas OHV
 
8
 
G-Power Spark Plug
Gap 0.044
 
1978 Mercury Marquis equipped with
5.8L V8 Gas OHV G-Power Spark Plug
Gap 0.044

8 Per Vehicle

NGK 3207 Spark Plug
for 1978 Mercury Marquis

NGK
On Sale:

$4.07
Avail:
88 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV
 
8
 
G-Power Spark Plug
Gap 0.050
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV G-Power Spark Plug
Gap 0.050

8 Per Vehicle

NGK 6630 Spark Plug
for 1978 Mercury Marquis

NGK
On Sale:

$3.19
Avail:
39 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
5.8L V8 Gas OHV
 
8
 
V-Power Spark Plug
Gap 0.044
OE Equivalent Design
 
1978 Mercury Marquis equipped with
5.8L V8 Gas OHV V-Power Spark Plug
Gap 0.044
OE Equivalent Design

8 Per Vehicle

NGK 6945 Spark Plug
for 1978 Mercury Marquis

NGK
On Sale:

$3.19
Avail:
199 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV
 
8
 
V-Power Spark Plug
Gap 0.050
OE Equivalent Design
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV V-Power Spark Plug
Gap 0.050
OE Equivalent Design

8 Per Vehicle

NGK 7401 Spark Plug
for 1978 Mercury Marquis

NGK
On Sale:

$7.53
Avail:
232 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
5.8L V8 Gas OHV
 
8
 
Iridium IX Spark Plug
Gap 0.044
 
1978 Mercury Marquis equipped with
5.8L V8 Gas OHV Iridium IX Spark Plug
Gap 0.044

8 Per Vehicle

NGK 7559 Spark Plug
for 1978 Mercury Marquis

NGK
On Sale:

$7.53
Avail:
43 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV
 
8
 
Iridium IX Spark Plug
Gap 0.050
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV Iridium IX Spark Plug
Gap 0.050

8 Per Vehicle

Bosch 4008 Spark Plug
for 1978 Mercury Marquis

Bosch
Avail:
0 in Stock
 OUT OF STOCK
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Platinum Plus
Gap 0.050 in
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Platinum Plus
Gap 0.050 in

8 Per Vehicle

Denso 4715 Spark Plug
for 1978 Mercury Marquis

Denso
On Sale:

$8.16
Avail:
86 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L 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
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L 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 1978 Mercury Marquis

Denso
On Sale:

$7.36
Avail:
128 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L 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)
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L 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 1978 Mercury Marquis

Denso
Avail:
0 in Stock
 OUT OF STOCK
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
5.8L V8 Gas OHV
 
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: H, GAS, CARB, Natural
 
1978 Mercury Marquis equipped with
5.8L V8 Gas OHV 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: H, GAS, CARB, Natural
8 Per Vehicle
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
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: C, GAS, CARB, Natural
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV 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: C, GAS, CARB, Natural
8 Per Vehicle
1978 Mercury Marquis equipped with
6.6L V8 Gas OHV
 
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
 
1978 Mercury Marquis equipped with
6.6L V8 Gas OHV 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
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV
 
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
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV 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

Autolite 26 Spark Plug
for 1978 Mercury Marquis

Autolite
Avail:
0 in Stock
 OUT OF STOCK
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Copper Resistor
OE Style
Gap .050 (in)
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Copper Resistor
OE Style
Gap .050 (in)

8 Per Vehicle

Autolite 26BP Spark Plug
for 1978 Mercury Marquis

Autolite
Avail:
0 in Stock
 OUT OF STOCK
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Copper Resistor
Bulk Pack
OE Style
Gap .050 (in)
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Copper Resistor
Bulk Pack
OE Style
Gap .050 (in)

8 Per Vehicle

Autolite AP26 Spark Plug
for 1978 Mercury Marquis

Autolite
Avail:
0 in Stock
 OUT OF STOCK
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Platinum
Gap .050 (in)
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Platinum
Gap .050 (in)

8 Per Vehicle

Autolite APP26 Spark Plug
for 1978 Mercury Marquis

Autolite
Avail:
0 in Stock
 OUT OF STOCK
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Double Platinum
Gap .050 (in)
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Double Platinum
Gap .050 (in)

8 Per Vehicle

Autolite XP26 Spark Plug
for 1978 Mercury Marquis

Autolite
Avail:
0 in Stock
 OUT OF STOCK
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Iridium XP
Gap .050 (in)
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Iridium XP
Gap .050 (in)

8 Per Vehicle

Champion 25 Spark Plug
for 1978 Mercury Marquis

Champion
On Sale:

$2.88
Avail:
445 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Copper Plus
Plug Type RV17YC
Gap .050
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Copper Plus
Plug Type RV17YC
Gap .050

8 Per Vehicle

Champion 3018 Spark Plug
for 1978 Mercury Marquis

Champion
On Sale:

$3.98
Avail:
145 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Platinum Power
Plug Type RV17PMC4
Gap .050
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Platinum Power
Plug Type RV17PMC4
Gap .050

8 Per Vehicle

Champion 7018 Spark Plug
for 1978 Mercury Marquis

Champion
On Sale:

$6.66
Avail:
31 in Stock
Warehouse: US-4
Qty:
View Product
EnginePer VehicleFit NotesFitment Notes
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV
 
8
 
Double Platinum Power
Plug Type RV17PMP4
Gap .050
 
1978 Mercury Marquis equipped with
7.5L V8 Gas OHV,
6.6L V8 Gas OHV,
5.8L V8 Gas OHV Double Platinum Power
Plug Type RV17PMP4
Gap .050

8 Per Vehicle
Displaying 1 to 24 (of 24 products)