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Bosch BS4478 Platinum+4 Spark Plug - Direct Fit

Part Number: BS4478 Manufacturer Number: 4478

Bosch BS4478 Platinum+4 Spark Plug - Direct Fit

BS4478 4478
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Product Details

BOSCH PREMIUM CLASS PLATINUM+4 SPARK PLUG

Bosch Premium Class Platinum+4 Spark Plug contains the most platinum in the Bosch Platinum Plug Series and has a unique firing technology that combines the advantages of surface air gap technology and 4 yttrium enhanced ground electrodes.

Specifications:
  • 14 mm thread size
  • 19 mm reach
  • 20.6 mm hex size
  • Platinum plug
  • Gasket seat style
  • Interference suppression resistor
  • Surface air gap plug
  • Heat fused platinum center electrode
  • 4 ground electrodes
  • Heat range 8

Features:
  • Reduces the voltage necessary to jump the gap as well as quenching
  • Provides multiple radial spark paths and surface air gap design that creates optimal exposure of the air/fuel mixture to the enhanced ignition spark
  • Yttrium-enhancement of the ground electrodes further extend plug life
  • Designed to reach self cleaning temperature faster for quicker starts, smoother acceleration, and increased fuel efficiency

Highlights

  • Series: Bosch Platinum+4
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Platinum
  • Reach: 19 mm
  • Thread Size: 14 mm
  • Warranty: 1 year or 12,000-mile Bosch limited warranty

$7.61 $8.98

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Bosch BS4478 Platinum+4 Spark Plug - Direct Fit

BS4478 4478

$8.98

You save $1.37 (15%)

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