These plugs work so well and last so long - Bosch really wants you to buy a different one of their plugs !!!  I used these - the long versions - for over six years and they STILL have no wear on them and the mileage is great and the vehicle runs great.  These were bought new - were the wrong ones - the LONG version was needed - BRAND NEW.

Brand:Bosch Automotive
Manufacturer's Part Number:4448
Part Type:Spark Plugs
Product Line:Bosch Platinum+4 Spark Plugs
Summit Racing Part Number:BCH-4448

Shorty Spark Plug:No
Manufacturer Heat Range:8
Electrode Core Material:Copper
Electrode Tip Material:Platinum
Spark Plug Thread Size:14mm
Spark Plug Reach:0.708 in.
Spark Plug Seat Style:Tapered
Wrench Diameter:5/8 in.
Ground Strap Quantity:Four
Quantity:Sold individually.[!brand:Bosch automotive!][!mpn:4448!][!upc:00028851019545!]