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09/20/2029 5:59 AM
Sale Price $10.91
In Stock (3)
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Usually delivered within 2 days
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Part number: 4478
Product Details
Bosch 4478 WGR8DQP Platinum +4 Spark Plug, Pack of 1
Products specifications
Electrode Core Material Copper
Electrode Tip Material Platinum
Ground Strap Quantity Four
Manufacturer Heat Range 8
Quantity Sold individually.
Resistor Yes
Shorty Spark Plug No
Spark Plug Reach 0.708 in.
Spark Plug Seat Style Tapered
Spark Plug Thread Size 14mm
Wrench Diameter 5/8 in.

Bosch Platinum+4 spark plug has unique revolutionary firing technology combining the advantages of surface air gap technology, nickel-yttrium four ground electrodes and a heat-fused center electrode with pure platinum providing optimum engine performance, smoother acceleration and top fuel efficiency.

  • Provides ease of installation - never requires adjustment
  • Never requires gapping, the electrode gap is factory-set and never requires adjustment
  • Electrode gap is factory set to provide ease of installation - never requires adjustment
  • Four yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for the most efficient combustion, plus the yttrium alloy ground electrodes reduce gap wear and oxidation for extended performance life
  • Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest, most powerful spark for ultimate engine performance
Reviews
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J
great
T
Very simple.
J
Quick response to customer question and great customer service. Will be back to purchase from again
A
Great service!
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Fitment
BMW 325i
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1989 BMW 325i ALL / Base
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1987 BMW 325i ALL / Base
BMW 325is
1991 BMW 325is ALL / Base
1990 BMW 325is ALL / Base
1989 BMW 325is ALL / Base
1988 BMW 325is ALL / Base
1987 BMW 325is ALL / Base
BMW 325iX
1991 BMW 325iX ALL / Base
1990 BMW 325iX ALL / Base
1989 BMW 325iX ALL / Base
1988 BMW 325iX ALL / Base
BMW 525i
1990 BMW 525i ALL / Base
1989 BMW 525i ALL / Base
BMW 528e
1988 BMW 528e ALL / Base
BMW 535i
1993 BMW 535i ALL / Base
1992 BMW 535i ALL / Base
1991 BMW 535i ALL / Base
1990 BMW 535i ALL / Base
1989 BMW 535i ALL / Base
BMW 635CSi
1989 BMW 635CSi ALL / Base
1988 BMW 635CSi ALL / Base
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