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Bosch conventional Nickel-Copper Spark Plugs are designed to deliver performance and value. Heavy-duty yttrium-enhanced nickel center...

U-Groove design provides better ignitability for increased engine efficiency. Spark Plug Standard Standard Spark Plug

Bosch Double Platinum Spark Plugs are engineered to deliver both performance and long life, representing the best of OE spark plug...

Manufactured to the strictest OE performance, durability and emissions standards. Spark Plug Iridium Long-Life

Bosch OE Fine Wire Double Iridium. All iridium plugs are NOT created equal. Give your customers the only one engineered for both high...

Bosch Double Platinum Spark Plugs are engineered to deliver both performance and long life, representing the best of OE spark plug...

U-Groove design provides better ignitability for increased engine efficiency. Spark Plug Standard

Manufactured to the strictest OE performance, durability and emissions standards. Spark Plug Iridium Long-Life

Increased performance with World's smallest Iridium Center Eletrode (0.4mm). Spark Plug Iridium Power

Twin-Tip design enables faster flame propagation for more complete combustion. Spark Plug Platinum TT

Increased performance with World's smallest Iridium Center Eletrode (0.4mm). Spark Plug Iridium Power

Bosch conventional Nickel-Copper Spark Plugs are designed to deliver performance and value. Heavy-duty yttrium-enhanced nickel center...