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1978 Dodge Diplomat

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Displaying 1 to 25 (of 47 products)
On Sale:

$3.66

Avail:
3 in Stock
Warehouse: US-7
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV
 
8
 
Copper Resistor
OE Style
Gap .035 (in)
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV Copper Resistor
OE Style
Gap .035 (in)

8 Per Vehicle
On Sale:

$5.88

Avail:
17 in Stock
Warehouse: US-7
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV
 
8
 
Platinum
Gap .035 (in)
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV Platinum
Gap .035 (in)

8 Per Vehicle
On Sale:

$28.62

Avail:
15 in Stock
Warehouse: US-7
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV
 
8
 
Double Platinum Power
Plug Type RN14PYP
Gap .035
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV Double Platinum Power
Plug Type RN14PYP
Gap .035

8 Per Vehicle
On Sale:

$2.64

Avail:
56 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV
 
8
 
U-Groove Conventional
Gap 0.032
O.E. Recommended Resistor Plug with Patented U-Groove Design
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV U-Groove Conventional
Gap 0.032
O.E. Recommended Resistor Plug with Patented U-Groove Design

8 Per Vehicle
On Sale:

$4.22

Avail:
72 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L 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 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L 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
On Sale:

$4.22

Avail:
81 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV
 
6
 
Platinum TT
Gap 0.040
Platinum TT
Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap
 
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV Platinum TT
Gap 0.040
Platinum TT
Twin-Tip Technology Design with Platinum Center Electrode and Titanium Enhanced Ground Strap

6 Per Vehicle
On Sale:

$6.81

Avail:
2 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L 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 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L 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
On Sale:

$2.64

Avail:
46 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV
 
8
 
Copper Plus
Plug Type RN14YC
Gap .035
OE Type
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV Copper Plus
Plug Type RN14YC
Gap .035
OE Type

8 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV
 
1
 
Platinum Spark Plug
Gap .035
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV Platinum Spark Plug
Gap .035
1 Per Vehicle
On Sale:

$5.17

Avail:
229 in Stock
Warehouse: US-12
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV
 
6
 
Gold-RAPIDFIRE
Gap 0.035 (in)
 
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV Gold-RAPIDFIRE
Gap 0.035 (in)

6 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV
 
8
 
Platinum Spark Plug
Gap .035
VIN: L, 4BBL
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV Platinum Spark Plug
Gap .035
VIN: L, 4BBL
8 Per Vehicle
1978 Dodge Diplomat equipped with
5.2L V8 Gas OHV
 
8
 
Platinum Spark Plug
Gap .035
VIN: G, 2BBL
 
1978 Dodge Diplomat equipped with
5.2L V8 Gas OHV Platinum Spark Plug
Gap .035
VIN: G, 2BBL
8 Per Vehicle
On Sale:

$7.02

Avail:
617 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV
 
6
 
GM Original Equipment-Double Platinum
Gap 0.035 (in)
 
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV GM Original Equipment-Double Platinum
Gap 0.035 (in)

6 Per Vehicle
On Sale:

$3.02

Avail:
467 in Stock
Warehouse: US-12
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV
 
6
 
GM Original Equipment-Conventional
Gap .035
 
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV GM Original Equipment-Conventional
Gap .035

6 Per Vehicle
On Sale:

$3.19

Avail:
185 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV
 
8
 
V-Power Spark Plug
Gap 0.035
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV V-Power Spark Plug
Gap 0.035

8 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EngineFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.2L V8 Gas OHV
 
Gap .035
Part # {GR4VX}
Plat.
VIN: H, 4BBL, Natural
 
1978 Dodge Diplomat equipped with
5.2L V8 Gas OHV Gap .035
Part # {GR4VX}
Plat.
VIN: H, 4BBL, Natural
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV
 
Gap .035
Part # {GR4VX}
Plat.
VIN: J, 4BBL, Natural
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV Gap .035
Part # {GR4VX}
Plat.
VIN: J, 4BBL, Natural
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV
 
Gap .035
Part # {GR4VX}
Plat.
VIN: L, 4BBL, Natural
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV Gap .035
Part # {GR4VX}
Plat.
VIN: L, 4BBL, Natural
1978 Dodge Diplomat equipped with
5.2L V8 Gas OHV
 
Gap .035
Part # {GR4VX}
Plat.
VIN: G, 2BBL, Natural
 
1978 Dodge Diplomat equipped with
5.2L V8 Gas OHV Gap .035
Part # {GR4VX}
Plat.
VIN: G, 2BBL, Natural
On Sale:

$4.07

Avail:
21 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV
 
8
 
G-Power Spark Plug
Gap 0.035
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV G-Power Spark Plug
Gap 0.035

8 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EngineFit NotesFitment Notes
1978 Dodge Diplomat equipped with
3.7L l6 Gas OHV
 
Gap .035
Part # {UR4VX}
Plat.
VIN: C, 1BBL, Natural
 
1978 Dodge Diplomat equipped with
3.7L l6 Gas OHV Gap .035
Part # {UR4VX}
Plat.
VIN: C, 1BBL, Natural
1978 Dodge Diplomat equipped with
3.7L l6 Gas OHV
 
Gap .035
Part # {UR4VX}
Plat.
VIN: D, 2BBL, Natural
 
1978 Dodge Diplomat equipped with
3.7L l6 Gas OHV Gap .035
Part # {UR4VX}
Plat.
VIN: D, 2BBL, Natural
On Sale:

$4.07

Avail:
361 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV
 
6
 
G-Power Spark Plug
Gap 0.035
 
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV G-Power Spark Plug
Gap 0.035

6 Per Vehicle
On Sale:

$2.98

Avail:
111 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV
 
8
 
Standard Spark Plug
Gap 0.035
OE Equivalent Design
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV Standard Spark Plug
Gap 0.035
OE Equivalent Design

8 Per Vehicle
On Sale:

$3.19

Avail:
39 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV
 
6
 
V-Power Spark Plug
Gap 0.035
OE Equivalent Design
 
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV V-Power Spark Plug
Gap 0.035
OE Equivalent Design

6 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L 360Cu. In V8 GAS OHV,
5.2L 318Cu. In V8 GAS OHV
 
8
 
Iridium IX Spark Plug
Gap 0.035
Supersedes to 97382
 
1978 Dodge Diplomat equipped with
5.9L 360Cu. In V8 GAS OHV,
5.2L 318Cu. In V8 GAS OHV Iridium IX Spark Plug
Gap 0.035
Supersedes to 97382

8 Per Vehicle
On Sale:

$7.53

Avail:
232 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV
 
6
 
Iridium IX Spark Plug
Gap 0.035
 
1978 Dodge Diplomat equipped with
3.7L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle
On Sale:

$7.53

Avail:
103 in Stock
Warehouse: US-4
Qty:
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV
 
8
 
Iridium IX Spark Plug
Gap 0.035
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
3.7L l6 Gas OHV
 
6
 
Platinum Plus
Gap 0.035 in
 
1978 Dodge Diplomat equipped with
3.7L l6 Gas OHV Platinum Plus
Gap 0.035 in

6 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV
 
8
 
Platinum Plus
Gap 0.035 in
 
1978 Dodge Diplomat equipped with
5.9L V8 Gas OHV,
5.2L V8 Gas OHV Platinum Plus
Gap 0.035 in

8 Per Vehicle
Displaying 1 to 25 (of 47 products)