Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009
Shopping for

2003 Mercury Grand Marquis

X

Displaying 1 to 25 (of 32 products)
On Sale:

$2.22

Avail:
1 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Copper Resistor
Gap .054 (in)
Replaces Original Half Thread Design
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Copper Resistor
Gap .054 (in)
Replaces Original Half Thread Design

8 Per Vehicle
On Sale:

$5.88

Avail:
36 in Stock
Warehouse: US-7
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Platinum
OE Style
Gap .054 (in)
Replaces Original Half Thread Design
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Platinum
OE Style
Gap .054 (in)
Replaces Original Half Thread Design

8 Per Vehicle
On Sale:

$8.81

Avail:
54 in Stock
Warehouse: US-7
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Double Platinum
Gap .054 (in)
Replaces Original Half Thread Design
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Double Platinum
Gap .054 (in)
Replaces Original Half Thread Design

8 Per Vehicle
On Sale:

$11.14

Avail:
37 in Stock
Warehouse: US-7
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Iridium XP
Gap .054 (in)
Replaces Original Half Thread Design
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Iridium XP
Gap .054 (in)
Replaces Original Half Thread Design

8 Per Vehicle
On Sale:

$2.99

Avail:
101 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
V-Power Spark Plug
Gap 0.054
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC V-Power Spark Plug
Gap 0.054

8 Per Vehicle
On Sale:

$4.22

Avail:
150 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Platinum TT
Gap 0.040
Platinum TT
Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Platinum TT
Gap 0.040
Platinum TT
Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap

8 Per Vehicle
On Sale:

$7.14

Avail:
2 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Iridium TT
Gap 0.040
Iridium TT
Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Iridium TT
Gap 0.040
Iridium TT
Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology

8 Per Vehicle
On Sale:

$2.77

Avail:
61 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
U-Groove Conventional
Gap 0.060
Resistor Plug with Patented U-Groove Design
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC U-Groove Conventional
Gap 0.060
Resistor Plug with Patented U-Groove Design

8 Per Vehicle
On Sale:

$6.62

Avail:
84 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Double Platinum
Gap 0.050
O.E. Recommended Double Platinum Plug
Extra Long Life Double Platinum Plug with Platinum Ground Strap
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Double Platinum
Gap 0.050
O.E. Recommended Double Platinum Plug
Extra Long Life Double Platinum Plug with Platinum Ground Strap

8 Per Vehicle
On Sale:

$8.05

Avail:
72 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Laser Platinum Spark Plug
Gap 0.054
OE Equivalent Design
60,000 mi OE Mfr Recommended Service Interval-Severe Service, 100,000 mi OE Mfr Recommended Service Interval-Normal Service
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Laser Platinum Spark Plug
Gap 0.054
OE Equivalent Design
60,000 mi OE Mfr Recommended Service Interval-Severe Service, 100,000 mi OE Mfr Recommended Service Interval-Normal Service

8 Per Vehicle
On Sale:

$10.02

Avail:
40 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Ruthenium HX High Ignitability Spark Plug
Gap 0.054
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Ruthenium HX High Ignitability Spark Plug
Gap 0.054

8 Per Vehicle
On Sale:

$7.36

Avail:
86 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
OE Fine Wire Double Iridium
Original Center Electrode Material is Platinum
Do Not Gap, Gap is Preset
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC OE Fine Wire Double Iridium
Original Center Electrode Material is Platinum
Do Not Gap, Gap is Preset

8 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Professional-RAPIDFIRE
Gap 0.054 (in)
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Professional-RAPIDFIRE
Gap 0.054 (in)

8 Per Vehicle
On Sale:

$4.03

Avail:
313 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Platinum Power
Plug Type RS10PYC4
Gap .054
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Platinum Power
Plug Type RS10PYC4
Gap .054

8 Per Vehicle
On Sale:

$4.07

Avail:
686 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
G-Power Spark Plug
Gap 0.054
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC G-Power Spark Plug
Gap 0.054

8 Per Vehicle
On Sale:

$2.92

Avail:
685 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Copper Plus
Plug Type RS12YC
Gap .054
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Copper Plus
Plug Type RS12YC
Gap .054

8 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Platinum Plus
Gap 0.054 in
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Platinum Plus
Gap 0.054 in

8 Per Vehicle
On Sale:

$7.21

Avail:
25 in Stock
Warehouse: US-12
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
GM Original Equipment-Double Platinum
Gap 0.054 (in)
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC GM Original Equipment-Double Platinum
Gap 0.054 (in)

8 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Platinum +2 Spark Plug
Do Not Gap, Gap is Preset
OE Is Platinum
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Platinum +2 Spark Plug
Do Not Gap, Gap is Preset
OE Is Platinum

8 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Platinum +4 Spark Plug
Do Not Gap, Gap is Preset
OE Is Platinum
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Platinum +4 Spark Plug
Do Not Gap, Gap is Preset
OE Is Platinum

8 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Laser Iridium Spark Plug
0.054
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Laser Iridium Spark Plug
0.054

8 Per Vehicle
On Sale:

$5.68

Avail:
441 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Platinum
Do Not Gap, Gap is Preset
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC OE Fine Wire Platinum
Original Center Electrode Material is Platinum
Do Not Gap, Gap is Preset

8 Per Vehicle
On Sale:

$7.53

Avail:
432 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Iridium IX Spark Plug
Gap 0.054
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Iridium IX Spark Plug
Gap 0.054

8 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Copper Resistor
Gap .054 (in)
OE Half Thread Design
Replaced by Full Thread Design
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Copper Resistor
Gap .054 (in)
OE Half Thread Design
Replaced by Full Thread Design

8 Per Vehicle
On Sale:

$6.28

Avail:
168 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC
 
8
 
Double Platinum Power
Plug Type RS12PYPB5
Gap .054
OE Type
 
2003 Mercury Grand Marquis equipped with
4.6L V8 Gas SOHC Double Platinum Power
Plug Type RS12PYPB5
Gap .054
OE Type

8 Per Vehicle
Displaying 1 to 25 (of 32 products)