NGK Standard spark plugs (in the iconic NGK 'yellow box' packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design.
NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Trivalent metal plating ensures long spark plug life.

The NGK 5126/B8HS-10 is compatible with the following outboard engine models:

Compatible with Mariner:
M55 663
60 675
60 6F0

Compatible with Nissan:
NS 120A
NS 140A
NS 45A
NS 50C
NS 50D
NS 55
NS 60A
NS 60B
NS 70A
NS 70B
NS 90A

Compatible with Suzuki:
DT140
DT150SS
DT35
DT50

Compatible with Tohatsu:
M115A
M115A2
M120A
M120A2
M140A
M140A2
M50C
M50D
M55A
M55B
M60B
M70A
M70A2
M70B
M90A

Compatible with Yamaha:
35
60
65
70
90
50TLR
60TLR
70LTR
90TLR
B90
C30
C55
C60
C70
C75
C80
C85
C90
D150 Twin Prop
E60
E75
P60
P75

Product Specifications:
Shell
Thread Diameter: 14mm
Thread Pitch:25mm
Seat Type: Gasket
Reach:7mm (1/2")
Hex Size: 13/16" (21mm)
Terminal Type: Removable Nut
Overall Height: ISO
Gap: .039" (1.0mm)

Center Electrode
Material: Nickel
Type: Standard
Size:5mm
Projection: Non-Projected

Ground Electrode
Material: Nickel
Type: Standard

Specifications
Resistor: No
Resistor Value: 1K Ohm
Heat Range: 8
Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.