3365 (CMR6H) NGK Standard spark plugs are OE approved and recommended for reliable performance for most automotive and non-automotive applications. NGK Standard spark plugs feature a 5-Rib insulator design to prevent flashover and are also treated to ensure ease of installation and removal. Cold rolled threads prevent damage to cylinder head. NGK's triple gasket sealing process virtually eliminates gas leakage past the shell. Solid Copper Core provides superior heat dissipation, conductivity and a broader heat range.

The 3365/CMR6H Spark Plugs are compatible with the following chainsaw models:
Comaptible with STIHL:
MS150TC
MS171
MS181
MS181C
MS201
MS201C
MS201T
MS211
MS211C
MS251
MS251C
Compatible with REDMAX:
GZ4000
Compatible with Husqvarna:
545
555
526XP

The 3365/CMR6H Spark Plugs are also compatible with the following outdoor power equipment models:
Compatible with JONSERED:
BRUSHCUTTER/TRIMMER
Comaptible with POULAN PRO:
HEDGE TRIMMER
Compatible with SHINDAIWA:
TRIMMER/BRUSHCUTTER
Compatible with STIHL:
BLOWER, SPRAYER

EDGER
HEDGE TRIMMER
KM56
KM130

Product Specifications:
Center Electrode Core Material: Copper Core
Center Electrode Tip Material: Nickel
Electrode Core Material: Nickle
Electrode Tip Material: Nickel
Gap Size: 0.028 in
Ground Configuration: Standard
Ground Electrode Core Material: Nickel Core
Ground Electrode Quantity: 1
Ground Electrode Tip Design: Standard
Ground Strap Quantity: 1
Hex Size: 5/8 in
Manufacturer Heat Range: 6
Reach: 7 mm
Resistor: Yes
Seat Type: Gasket
Shorty Spark Plug: Yes
Spark Plug Approximate Resistor Value: 10K Ohm
Thread Diameter: 10 mm
Tip Configuration: Solid
Type: Standard
Wrench Diameter: 5/8 in