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Bosch Spark Plugs

Bosch heavy duty copper core plugs deliver excellent mileage and long life at a reasonable price. The Platinum plugs have a very wide operating heat range, withstand high temperatures, and last even longer. In Bosch numbering, the higher the number, the hotter the heat range of the plug. Modified engines often need a cooler heat range plug.

Porsche Year Original / Platinum Qty

Price

356

all
WR6BC $2.25

NA

912

1965-69
WR6BC $2.25

NA

911 all

65-67
WR5DC $2.25
WR5DP $3.50

911T

68-71
WR5DC $2.25
WR5DP $3.50

72-73
W5DPO* $18.50
WR5DP $3.50

911E,S

68-73
W3DPO* $18.50
WR5DP $3.50

914-6

all
W4DPO* $18.50
WR5DP $3.50

911 all

74-77
WR5DC $2.25
WR5DP $3.50

911 all

78-80
WR8DC $2.25
WR8DP $3.50

911 all

81-83
WR5DC $2.25
WR5DP $3.50

911 all

84-89
WR7DC $2.25
WR7DP $3.50

911

90
FR5DTC $4.75

NA

Carrera 2/4

88 on
FR5DTC $4.75

NA

930,911 Turbo

all
W3DPO* $18.50

NA

914

all
WR7DC $2.25
WR7DP $3.50

924

77-80
WR7DC $2.25
WR7DP $3.50

81-83
WR6DC $2.25
WR6DP $3.50

944

83-84
WR8DS $5.50
WR8DP $3.50

944,924s

85-89
WR7DS $5.50
WR7DP $3.50

944s

89-90
WR5DC $2.25
WR5DP $3.50

944 turbo

all
WR7DS $5.50
WR7DP $3.50

928

78-79
WR8DC $2.25
WR8DP $3.50

80-84
WR8DS $5.50
WR8DP $3.50

85-86
WR7DS $5.50
WR8DP $3.50

87-92
WR7DC $2.25
WR7DP $3.50
*These spark plugs are a fine- tip platinum as installed by PORSCHE at the time the car was built. The closest number in a new style platinum is a WR5DP. Most people report great luck with this plug in their cars.




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