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:
0.133 in.
Center Electrode Insulator Tip Projection:
3.38 mm
Center Electrode Projection:
Mid Projection
Center Electrode Tip Material:
Iridium
Core Nose Length:
0.465 in.
Core Nose Length:
11.81 mm
Electrical Terminal Type:
Non-Removable Nut
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Taper Cut
Ground Electrode Tip Material:
Platinum
Insulator Height:
2.006 in.
Insulator Height:
50.95 mm
Insulator Material:
Ceramic
Manufacturer Heat Range:
10
Champion Spark Plug #:
446
Champion Spark Plug #:
9033
Champion Spark Plug #:
9044
Champion Spark Plug #:
REC10WMPB
Champion Spark Plug #:
REC10WMPB4
Champion Spark Plug #:
REC10WYPB4
Champion Spark Plug #:
REC8WMPB4
Champion Spark Plug #:
REC8WYPB3
Champion Spark Plug #:
REC8WYPB4
DENSO Auto Parts #:
FK16HQR11
DENSO Auto Parts #:
FK16HR-A8
DENSO Auto Parts #:
FK20HBR11
DENSO Auto Parts #:
FK20HBR8
DENSO Auto Parts #:
FK20HQR10
DENSO Auto Parts #:
FK20HQR8
DENSO Auto Parts #:
FK20HR-A8
DENSO Auto Parts #:
FK20HR11
DENSO Auto Parts #:
IKH16
DENSO Auto Parts #:
IKH16TT
DENSO Auto Parts #:
IKH20
DENSO Auto Parts #:
IKH20TT
DENSO Auto Parts #:
SK16HR11
DENSO Auto Parts #:
SK20HPR-L11
DENSO Auto Parts #:
SK20HR-A11
DENSO Auto Parts #:
SK20HR11
DENSO Auto Parts #:
ZK20HQR8
Mercedes-Benz #:
004 159 13 03
Porsche #:
958 905 601 00
Porsche #:
999 170 229 90
Subaru (cars) #:
22401AA630
Subaru (cars) #:
22401AA670
Subaru (cars) #:
22401AA750
Subaru (cars) #:
22401AA751
Subaru (cars) #:
22401AA760
Subaru (cars) #:
22401AA761
Volkswagen #:
06K 905 601 B
Volkswagen #:
06K 905 601 C
Volkswagen #:
06K 905 611 C
