Description:
Autolite Iridium XP spark plugs are engineered with an iridium-enhanced fine-wire and a proprietary, platinum ground electrode, to increase durability*, while its tapered ground wire maximizes engine efficiency, delivering improved engine performance, fuel efficiency, acceleration, and ignitability.
Features and Benefits:
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
- Engineered with an Iridium-enhanced center electrode and fine-wire design that increases ignitability and provides a more focused ignition for improved engine performance.
- Includes a lifetime limited warranty that guarantees optimum performance equal to OE designed plugs.
- Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength while preventing flash-over.
- Its proprietary platinum ground electrode provides increased durability* and resistance to wear, extending the life of the plug.
- The tapered ground wire improves engine ignitability.
Specifications:
Center Electrode Core Material:
Copper
Center Electrode Design:
Fine Wire
Center Electrode Insulator Tip Projection:
0.19 in.
Center Electrode Insulator Tip Projection:
4.83 mm
Center Electrode Projection:
Long Projection
Center Electrode Tip Material:
Iridium
Core Nose Length:
0.449 in.
Core Nose Length:
11.4 mm
Electrical Terminal Type:
Non-Removable Nut
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Taper Cut
Ground Electrode Tip Material:
Platinum
Insulator Height:
2.026 in.
Insulator Height:
51.46 mm
Insulator Material:
Ceramic
Manufacturer Heat Range:
10
Champion Spark Plug #:
RS12WMPB4
DENSO Auto Parts #:
IT16TT
DENSO Auto Parts #:
ZTJ16R10
General Motors #:
12571165
General Motors #:
12680072
