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Bosch 4478

Spark Plug Platinum-4

Bosch 4478

149-4478

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$4.37
$3.97
ON SALE - $0.40 OFF
Bosch 4478 Spark Plug Platinum-4 $3.97
Spark Plug Platinum-4

Specifications:

Gap Size
1.6
Ground Electrode Quantity
4
Seat Type
Flat
Thread Diameter
14
Center Electrode Core Material
Platinum
Center Electrode Tip Material
Platinum
Hex Size
21 mm
Reach
19
Ground Electrode Tip Material
Nickel-Yttrium
Insulator Material
Ceramic
Short Style
No
Manufacturer Heat Range
08
Ground Configuration
Multiple
Manufacturer's Part Number:
4478

The most platinum with four yttrium-enhanced ground electrodes and the most powerful spark.

If you require the best in platinum performance over the longest service life, Platinum+4 is the spark plug for you. Platinum+4's unique revolutionary firing technology combines the advantages of surface air gap technology, four yttrium-enhanced ground electrodes, and a heat-fused center electrode with the most platinum, creating the most powerful spark you can buy. Sold individually.


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