4 Pack NGK BKR8EIX 2668 Iridium Spark Plugs new aftermarket Features: Bare

Features: Bare

33 spline outer and 36 spline tapered bars  strongest set of axles to date

If you are using these for a 88-91 Civic / CRX

73 Ratio - 28 Spline Pinion - Ford 8

Manufacturer Part Number: 6905530480

4 Pack NGK BKR8EIX 2668 Iridium Spark Plugs new aftermarket Features: BareUPC: # 87295126684 Seat: Flat Thread Size: 14mm Heat Range: 8 Hex Size (mm): 16mm Hex Size (in): 5 8 Inch Preset Gap (in): 0. 032 Inch Thread Reach (in): 0. 750 Inch Resistor Plug: Yes Number Of Ground Electrodes: 1 Center Electrode Core Material: Copper Approximate Resistor Value (Ohm): 5000 Ohm Insulator Height (mm): 50mm Ground Electrode Tip Material: Nickel Copper Alloy Thread Reach (mm): 19mm Center Electrode Design: Tapered Shipping & Return