Brand:
Manufacturer's Part Number:
R25
Part Type:
Product Line:
Summit Racing Part Number:
ATL-AR25
UPC:
00009100026569
Spark Plug Thread Size:
14mm
Spark Plug Reach (in.):
0.460 in.
Spark Plug Reach (mm):
11.68mm
Manufacturer Heat Range:
5
Shorty Spark Plug:
No
Resistor:
Yes
Electrode Tip Material:
Chromium nickel alloy
Electrode Core Material:
Copper
Center Electrode Type:
Projected
Spark Plug Seat Style:
Tapered
Wrench Diameter:
5/8 in.
Ground Strap Quantity:
One
Quantity:
Sold individually.
Autolite Racing Spark Plugs
Autolite racing spark plugs are the preferred choice for many professionals. They contain an Yttrium-enhanced alloy, which enables up to 8 percent reduction in side wire temperatures for improved durability and less pre-ignition. These replacement spark plugs are available in colder heat ranges than most plug manufacturers to support modified engines. They feature a cut background electrode, which improves ignitibility and faster flame kernel growth. Autolite racing spark plugs have a nickel plated finish for long life and corrosion resistance. They're available in a variety of styles, sizes, and other options--in universal or vehicle-specific applications.